var browserName = navigator.appName;
		var browserVer = parseInt(navigator.appVersion);
		var version = "";
		var msie4 = (browserName == "Microsoft Internet Explorer" && browserVer >= 4);
		if ((browserName == "Netscape" && browserVer >= 3) || msie4 || browserName=="Konqueror" || browserName=="Opera") {version = "n3";} else {version = "n2";}
			// Blurring links:
		function blurLink(theObject)	{	//
			if (msie4)	{theObject.blur();}
		}
		
			// decrypt helper function
		function decryptCharcode(n,start,end,offset)	{
			n = n + offset;
			if (offset > 0 && n > end)	{
				n = start + (n - end - 1);
			} else if (offset < 0 && n < start)	{
				n = end - (start - n - 1);
			}
			return String.fromCharCode(n);
		}
			// decrypt string
		function decryptString(enc,offset)	{
			var dec = "";
			var len = enc.length;
			for(var i=0; i < len; i++)	{
				var n = enc.charCodeAt(i);
				if (n >= 0x2B && n <= 0x3A)	{
					dec += decryptCharcode(n,0x2B,0x3A,offset);	// 0-9 . , - + / :
				} else if (n >= 0x40 && n <= 0x5A)	{
					dec += decryptCharcode(n,0x40,0x5A,offset);	// A-Z @
				} else if (n >= 0x61 && n <= 0x7A)	{
					dec += decryptCharcode(n,0x61,0x7A,offset);	// a-z
				} else {
					dec += enc.charAt(i);
				}
			}
			return dec;
		}
			// decrypt spam-protected emails
		function linkTo_UnCryptMailto(s)	{
			location.href = decryptString(s,-1);
		}
		/*  Prototype JavaScript framework, version 1.6.1
 *  (c) 2005-2009 Sam Stephenson
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site: http://www.prototypejs.org/
 *
 *--------------------------------------------------------------------------*/

var Prototype = {
  Version: '1.6.1',

  Browser: (function(){
    var ua = navigator.userAgent;
    var isOpera = Object.prototype.toString.call(window.opera) == '[object Opera]';
    return {
      IE:             !!window.attachEvent && !isOpera,
      Opera:          isOpera,
      WebKit:         ua.indexOf('AppleWebKit/') > -1,
      Gecko:          ua.indexOf('Gecko') > -1 && ua.indexOf('KHTML') === -1,
      MobileSafari:   /Apple.*Mobile.*Safari/.test(ua)
    }
  })(),

  BrowserFeatures: {
    XPath: !!document.evaluate,
    SelectorsAPI: !!document.querySelector,
    ElementExtensions: (function() {
      var constructor = window.Element || window.HTMLElement;
      return !!(constructor && constructor.prototype);
    })(),
    SpecificElementExtensions: (function() {
      if (typeof window.HTMLDivElement !== 'undefined')
        return true;

      var div = document.createElement('div');
      var form = document.createElement('form');
      var isSupported = false;

      if (div['__proto__'] && (div['__proto__'] !== form['__proto__'])) {
        isSupported = true;
      }

      div = form = null;

      return isSupported;
    })()
  },

  ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script>',
  JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,

  emptyFunction: function() { },
  K: function(x) { return x }
};

if (Prototype.Browser.MobileSafari)
  Prototype.BrowserFeatures.SpecificElementExtensions = false;


var Abstract = { };


var Try = {
  these: function() {
    var returnValue;

    for (var i = 0, length = arguments.length; i < length; i++) {
      var lambda = arguments[i];
      try {
        returnValue = lambda();
        break;
      } catch (e) { }
    }

    return returnValue;
  }
};

/* Based on Alex Arnell's inheritance implementation. */

var Class = (function() {
  function subclass() {};
  function create() {
    var parent = null, properties = $A(arguments);
    if (Object.isFunction(properties[0]))
      parent = properties.shift();

    function klass() {
      this.initialize.apply(this, arguments);
    }

    Object.extend(klass, Class.Methods);
    klass.superclass = parent;
    klass.subclasses = [];

    if (parent) {
      subclass.prototype = parent.prototype;
      klass.prototype = new subclass;
      parent.subclasses.push(klass);
    }

    for (var i = 0; i < properties.length; i++)
      klass.addMethods(properties[i]);

    if (!klass.prototype.initialize)
      klass.prototype.initialize = Prototype.emptyFunction;

    klass.prototype.constructor = klass;
    return klass;
  }

  function addMethods(source) {
    var ancestor   = this.superclass && this.superclass.prototype;
    var properties = Object.keys(source);

    if (!Object.keys({ toString: true }).length) {
      if (source.toString != Object.prototype.toString)
        properties.push("toString");
      if (source.valueOf != Object.prototype.valueOf)
        properties.push("valueOf");
    }

    for (var i = 0, length = properties.length; i < length; i++) {
      var property = properties[i], value = source[property];
      if (ancestor && Object.isFunction(value) &&
          value.argumentNames().first() == "$super") {
        var method = value;
        value = (function(m) {
          return function() { return ancestor[m].apply(this, arguments); };
        })(property).wrap(method);

        value.valueOf = method.valueOf.bind(method);
        value.toString = method.toString.bind(method);
      }
      this.prototype[property] = value;
    }

    return this;
  }

  return {
    create: create,
    Methods: {
      addMethods: addMethods
    }
  };
})();
(function() {

  var _toString = Object.prototype.toString;

  function extend(destination, source) {
    for (var property in source)
      destination[property] = source[property];
    return destination;
  }

  function inspect(object) {
    try {
      if (isUndefined(object)) return 'undefined';
      if (object === null) return 'null';
      return object.inspect ? object.inspect() : String(object);
    } catch (e) {
      if (e instanceof RangeError) return '...';
      throw e;
    }
  }

  function toJSON(object) {
    var type = typeof object;
    switch (type) {
      case 'undefined':
      case 'function':
      case 'unknown': return;
      case 'boolean': return object.toString();
    }

    if (object === null) return 'null';
    if (object.toJSON) return object.toJSON();
    if (isElement(object)) return;

    var results = [];
    for (var property in object) {
      var value = toJSON(object[property]);
      if (!isUndefined(value))
        results.push(property.toJSON() + ': ' + value);
    }

    return '{' + results.join(', ') + '}';
  }

  function toQueryString(object) {
    return $H(object).toQueryString();
  }

  function toHTML(object) {
    return object && object.toHTML ? object.toHTML() : String.interpret(object);
  }

  function keys(object) {
    var results = [];
    for (var property in object)
      results.push(property);
    return results;
  }

  function values(object) {
    var results = [];
    for (var property in object)
      results.push(object[property]);
    return results;
  }

  function clone(object) {
    return extend({ }, object);
  }

  function isElement(object) {
    return !!(object && object.nodeType == 1);
  }

  function isArray(object) {
    return _toString.call(object) == "[object Array]";
  }


  function isHash(object) {
    return object instanceof Hash;
  }

  function isFunction(object) {
    return typeof object === "function";
  }

  function isString(object) {
    return _toString.call(object) == "[object String]";
  }

  function isNumber(object) {
    return _toString.call(object) == "[object Number]";
  }

  function isUndefined(object) {
    return typeof object === "undefined";
  }

  extend(Object, {
    extend:        extend,
    inspect:       inspect,
    toJSON:        toJSON,
    toQueryString: toQueryString,
    toHTML:        toHTML,
    keys:          keys,
    values:        values,
    clone:         clone,
    isElement:     isElement,
    isArray:       isArray,
    isHash:        isHash,
    isFunction:    isFunction,
    isString:      isString,
    isNumber:      isNumber,
    isUndefined:   isUndefined
  });
})();
Object.extend(Function.prototype, (function() {
  var slice = Array.prototype.slice;

  function update(array, args) {
    var arrayLength = array.length, length = args.length;
    while (length--) array[arrayLength + length] = args[length];
    return array;
  }

  function merge(array, args) {
    array = slice.call(array, 0);
    return update(array, args);
  }

  function argumentNames() {
    var names = this.toString().match(/^[\s\(]*function[^(]*\(([^)]*)\)/)[1]
      .replace(/\/\/.*?[\r\n]|\/\*(?:.|[\r\n])*?\*\//g, '')
      .replace(/\s+/g, '').split(',');
    return names.length == 1 && !names[0] ? [] : names;
  }

  function bind(context) {
    if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
    var __method = this, args = slice.call(arguments, 1);
    return function() {
      var a = merge(args, arguments);
      return __method.apply(context, a);
    }
  }

  function bindAsEventListener(context) {
    var __method = this, args = slice.call(arguments, 1);
    return function(event) {
      var a = update([event || window.event], args);
      return __method.apply(context, a);
    }
  }

  function curry() {
    if (!arguments.length) return this;
    var __method = this, args = slice.call(arguments, 0);
    return function() {
      var a = merge(args, arguments);
      return __method.apply(this, a);
    }
  }

  function delay(timeout) {
    var __method = this, args = slice.call(arguments, 1);
    timeout = timeout * 1000
    return window.setTimeout(function() {
      return __method.apply(__method, args);
    }, timeout);
  }

  function defer() {
    var args = update([0.01], arguments);
    return this.delay.apply(this, args);
  }

  function wrap(wrapper) {
    var __method = this;
    return function() {
      var a = update([__method.bind(this)], arguments);
      return wrapper.apply(this, a);
    }
  }

  function methodize() {
    if (this._methodized) return this._methodized;
    var __method = this;
    return this._methodized = function() {
      var a = update([this], arguments);
      return __method.apply(null, a);
    };
  }

  return {
    argumentNames:       argumentNames,
    bind:                bind,
    bindAsEventListener: bindAsEventListener,
    curry:               curry,
    delay:               delay,
    defer:               defer,
    wrap:                wrap,
    methodize:           methodize
  }
})());


Date.prototype.toJSON = function() {
  return '"' + this.getUTCFullYear() + '-' +
    (this.getUTCMonth() + 1).toPaddedString(2) + '-' +
    this.getUTCDate().toPaddedString(2) + 'T' +
    this.getUTCHours().toPaddedString(2) + ':' +
    this.getUTCMinutes().toPaddedString(2) + ':' +
    this.getUTCSeconds().toPaddedString(2) + 'Z"';
};


RegExp.prototype.match = RegExp.prototype.test;

RegExp.escape = function(str) {
  return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
};
var PeriodicalExecuter = Class.create({
  initialize: function(callback, frequency) {
    this.callback = callback;
    this.frequency = frequency;
    this.currentlyExecuting = false;

    this.registerCallback();
  },

  registerCallback: function() {
    this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
  },

  execute: function() {
    this.callback(this);
  },

  stop: function() {
    if (!this.timer) return;
    clearInterval(this.timer);
    this.timer = null;
  },

  onTimerEvent: function() {
    if (!this.currentlyExecuting) {
      try {
        this.currentlyExecuting = true;
        this.execute();
        this.currentlyExecuting = false;
      } catch(e) {
        this.currentlyExecuting = false;
        throw e;
      }
    }
  }
});
Object.extend(String, {
  interpret: function(value) {
    return value == null ? '' : String(value);
  },
  specialChar: {
    '\b': '\\b',
    '\t': '\\t',
    '\n': '\\n',
    '\f': '\\f',
    '\r': '\\r',
    '\\': '\\\\'
  }
});

Object.extend(String.prototype, (function() {

  function prepareReplacement(replacement) {
    if (Object.isFunction(replacement)) return replacement;
    var template = new Template(replacement);
    return function(match) { return template.evaluate(match) };
  }

  function gsub(pattern, replacement) {
    var result = '', source = this, match;
    replacement = prepareReplacement(replacement);

    if (Object.isString(pattern))
      pattern = RegExp.escape(pattern);

    if (!(pattern.length || pattern.source)) {
      replacement = replacement('');
      return replacement + source.split('').join(replacement) + replacement;
    }

    while (source.length > 0) {
      if (match = source.match(pattern)) {
        result += source.slice(0, match.index);
        result += String.interpret(replacement(match));
        source  = source.slice(match.index + match[0].length);
      } else {
        result += source, source = '';
      }
    }
    return result;
  }

  function sub(pattern, replacement, count) {
    replacement = prepareReplacement(replacement);
    count = Object.isUndefined(count) ? 1 : count;

    return this.gsub(pattern, function(match) {
      if (--count < 0) return match[0];
      return replacement(match);
    });
  }

  function scan(pattern, iterator) {
    this.gsub(pattern, iterator);
    return String(this);
  }

  function truncate(length, truncation) {
    length = length || 30;
    truncation = Object.isUndefined(truncation) ? '...' : truncation;
    return this.length > length ?
      this.slice(0, length - truncation.length) + truncation : String(this);
  }

  function strip() {
    return this.replace(/^\s+/, '').replace(/\s+$/, '');
  }

  function stripTags() {
    return this.replace(/<\w+(\s+("[^"]*"|'[^']*'|[^>])+)?>|<\/\w+>/gi, '');
  }

  function stripScripts() {
    return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
  }

  function extractScripts() {
    var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
    var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
    return (this.match(matchAll) || []).map(function(scriptTag) {
      return (scriptTag.match(matchOne) || ['', ''])[1];
    });
  }

  function evalScripts() {
    return this.extractScripts().map(function(script) { return eval(script) });
  }

  function escapeHTML() {
    return this.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
  }

  function unescapeHTML() {
    return this.stripTags().replace(/&lt;/g,'<').replace(/&gt;/g,'>').replace(/&amp;/g,'&');
  }


  function toQueryParams(separator) {
    var match = this.strip().match(/([^?#]*)(#.*)?$/);
    if (!match) return { };

    return match[1].split(separator || '&').inject({ }, function(hash, pair) {
      if ((pair = pair.split('='))[0]) {
        var key = decodeURIComponent(pair.shift());
        var value = pair.length > 1 ? pair.join('=') : pair[0];
        if (value != undefined) value = decodeURIComponent(value);

        if (key in hash) {
          if (!Object.isArray(hash[key])) hash[key] = [hash[key]];
          hash[key].push(value);
        }
        else hash[key] = value;
      }
      return hash;
    });
  }

  function toArray() {
    return this.split('');
  }

  function succ() {
    return this.slice(0, this.length - 1) +
      String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
  }

  function times(count) {
    return count < 1 ? '' : new Array(count + 1).join(this);
  }

  function camelize() {
    var parts = this.split('-'), len = parts.length;
    if (len == 1) return parts[0];

    var camelized = this.charAt(0) == '-'
      ? parts[0].charAt(0).toUpperCase() + parts[0].substring(1)
      : parts[0];

    for (var i = 1; i < len; i++)
      camelized += parts[i].charAt(0).toUpperCase() + parts[i].substring(1);

    return camelized;
  }

  function capitalize() {
    return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
  }

  function underscore() {
    return this.replace(/::/g, '/')
               .replace(/([A-Z]+)([A-Z][a-z])/g, '$1_$2')
               .replace(/([a-z\d])([A-Z])/g, '$1_$2')
               .replace(/-/g, '_')
               .toLowerCase();
  }

  function dasherize() {
    return this.replace(/_/g, '-');
  }

  function inspect(useDoubleQuotes) {
    var escapedString = this.replace(/[\x00-\x1f\\]/g, function(character) {
      if (character in String.specialChar) {
        return String.specialChar[character];
      }
      return '\\u00' + character.charCodeAt().toPaddedString(2, 16);
    });
    if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
    return "'" + escapedString.replace(/'/g, '\\\'') + "'";
  }

  function toJSON() {
    return this.inspect(true);
  }

  function unfilterJSON(filter) {
    return this.replace(filter || Prototype.JSONFilter, '$1');
  }

  function isJSON() {
    var str = this;
    if (str.blank()) return false;
    str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
    return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
  }

  function evalJSON(sanitize) {
    var json = this.unfilterJSON();
    try {
      if (!sanitize || json.isJSON()) return eval('(' + json + ')');
    } catch (e) { }
    throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
  }

  function include(pattern) {
    return this.indexOf(pattern) > -1;
  }

  function startsWith(pattern) {
    return this.indexOf(pattern) === 0;
  }

  function endsWith(pattern) {
    var d = this.length - pattern.length;
    return d >= 0 && this.lastIndexOf(pattern) === d;
  }

  function empty() {
    return this == '';
  }

  function blank() {
    return /^\s*$/.test(this);
  }

  function interpolate(object, pattern) {
    return new Template(this, pattern).evaluate(object);
  }

  return {
    gsub:           gsub,
    sub:            sub,
    scan:           scan,
    truncate:       truncate,
    strip:          String.prototype.trim ? String.prototype.trim : strip,
    stripTags:      stripTags,
    stripScripts:   stripScripts,
    extractScripts: extractScripts,
    evalScripts:    evalScripts,
    escapeHTML:     escapeHTML,
    unescapeHTML:   unescapeHTML,
    toQueryParams:  toQueryParams,
    parseQuery:     toQueryParams,
    toArray:        toArray,
    succ:           succ,
    times:          times,
    camelize:       camelize,
    capitalize:     capitalize,
    underscore:     underscore,
    dasherize:      dasherize,
    inspect:        inspect,
    toJSON:         toJSON,
    unfilterJSON:   unfilterJSON,
    isJSON:         isJSON,
    evalJSON:       evalJSON,
    include:        include,
    startsWith:     startsWith,
    endsWith:       endsWith,
    empty:          empty,
    blank:          blank,
    interpolate:    interpolate
  };
})());

var Template = Class.create({
  initialize: function(template, pattern) {
    this.template = template.toString();
    this.pattern = pattern || Template.Pattern;
  },

  evaluate: function(object) {
    if (object && Object.isFunction(object.toTemplateReplacements))
      object = object.toTemplateReplacements();

    return this.template.gsub(this.pattern, function(match) {
      if (object == null) return (match[1] + '');

      var before = match[1] || '';
      if (before == '\\') return match[2];

      var ctx = object, expr = match[3];
      var pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
      match = pattern.exec(expr);
      if (match == null) return before;

      while (match != null) {
        var comp = match[1].startsWith('[') ? match[2].replace(/\\\\]/g, ']') : match[1];
        ctx = ctx[comp];
        if (null == ctx || '' == match[3]) break;
        expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);
        match = pattern.exec(expr);
      }

      return before + String.interpret(ctx);
    });
  }
});
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;

var $break = { };

var Enumerable = (function() {
  function each(iterator, context) {
    var index = 0;
    try {
      this._each(function(value) {
        iterator.call(context, value, index++);
      });
    } catch (e) {
      if (e != $break) throw e;
    }
    return this;
  }

  function eachSlice(number, iterator, context) {
    var index = -number, slices = [], array = this.toArray();
    if (number < 1) return array;
    while ((index += number) < array.length)
      slices.push(array.slice(index, index+number));
    return slices.collect(iterator, context);
  }

  function all(iterator, context) {
    iterator = iterator || Prototype.K;
    var result = true;
    this.each(function(value, index) {
      result = result && !!iterator.call(context, value, index);
      if (!result) throw $break;
    });
    return result;
  }

  function any(iterator, context) {
    iterator = iterator || Prototype.K;
    var result = false;
    this.each(function(value, index) {
      if (result = !!iterator.call(context, value, index))
        throw $break;
    });
    return result;
  }

  function collect(iterator, context) {
    iterator = iterator || Prototype.K;
    var results = [];
    this.each(function(value, index) {
      results.push(iterator.call(context, value, index));
    });
    return results;
  }

  function detect(iterator, context) {
    var result;
    this.each(function(value, index) {
      if (iterator.call(context, value, index)) {
        result = value;
        throw $break;
      }
    });
    return result;
  }

  function findAll(iterator, context) {
    var results = [];
    this.each(function(value, index) {
      if (iterator.call(context, value, index))
        results.push(value);
    });
    return results;
  }

  function grep(filter, iterator, context) {
    iterator = iterator || Prototype.K;
    var results = [];

    if (Object.isString(filter))
      filter = new RegExp(RegExp.escape(filter));

    this.each(function(value, index) {
      if (filter.match(value))
        results.push(iterator.call(context, value, index));
    });
    return results;
  }

  function include(object) {
    if (Object.isFunction(this.indexOf))
      if (this.indexOf(object) != -1) return true;

    var found = false;
    this.each(function(value) {
      if (value == object) {
        found = true;
        throw $break;
      }
    });
    return found;
  }

  function inGroupsOf(number, fillWith) {
    fillWith = Object.isUndefined(fillWith) ? null : fillWith;
    return this.eachSlice(number, function(slice) {
      while(slice.length < number) slice.push(fillWith);
      return slice;
    });
  }

  function inject(memo, iterator, context) {
    this.each(function(value, index) {
      memo = iterator.call(context, memo, value, index);
    });
    return memo;
  }

  function invoke(method) {
    var args = $A(arguments).slice(1);
    return this.map(function(value) {
      return value[method].apply(value, args);
    });
  }

  function max(iterator, context) {
    iterator = iterator || Prototype.K;
    var result;
    this.each(function(value, index) {
      value = iterator.call(context, value, index);
      if (result == null || value >= result)
        result = value;
    });
    return result;
  }

  function min(iterator, context) {
    iterator = iterator || Prototype.K;
    var result;
    this.each(function(value, index) {
      value = iterator.call(context, value, index);
      if (result == null || value < result)
        result = value;
    });
    return result;
  }

  function partition(iterator, context) {
    iterator = iterator || Prototype.K;
    var trues = [], falses = [];
    this.each(function(value, index) {
      (iterator.call(context, value, index) ?
        trues : falses).push(value);
    });
    return [trues, falses];
  }

  function pluck(property) {
    var results = [];
    this.each(function(value) {
      results.push(value[property]);
    });
    return results;
  }

  function reject(iterator, context) {
    var results = [];
    this.each(function(value, index) {
      if (!iterator.call(context, value, index))
        results.push(value);
    });
    return results;
  }

  function sortBy(iterator, context) {
    return this.map(function(value, index) {
      return {
        value: value,
        criteria: iterator.call(context, value, index)
      };
    }).sort(function(left, right) {
      var a = left.criteria, b = right.criteria;
      return a < b ? -1 : a > b ? 1 : 0;
    }).pluck('value');
  }

  function toArray() {
    return this.map();
  }

  function zip() {
    var iterator = Prototype.K, args = $A(arguments);
    if (Object.isFunction(args.last()))
      iterator = args.pop();

    var collections = [this].concat(args).map($A);
    return this.map(function(value, index) {
      return iterator(collections.pluck(index));
    });
  }

  function size() {
    return this.toArray().length;
  }

  function inspect() {
    return '#<Enumerable:' + this.toArray().inspect() + '>';
  }









  return {
    each:       each,
    eachSlice:  eachSlice,
    all:        all,
    every:      all,
    any:        any,
    some:       any,
    collect:    collect,
    map:        collect,
    detect:     detect,
    findAll:    findAll,
    select:     findAll,
    filter:     findAll,
    grep:       grep,
    include:    include,
    member:     include,
    inGroupsOf: inGroupsOf,
    inject:     inject,
    invoke:     invoke,
    max:        max,
    min:        min,
    partition:  partition,
    pluck:      pluck,
    reject:     reject,
    sortBy:     sortBy,
    toArray:    toArray,
    entries:    toArray,
    zip:        zip,
    size:       size,
    inspect:    inspect,
    find:       detect
  };
})();
function $A(iterable) {
  if (!iterable) return [];
  if ('toArray' in Object(iterable)) return iterable.toArray();
  var length = iterable.length || 0, results = new Array(length);
  while (length--) results[length] = iterable[length];
  return results;
}

function $w(string) {
  if (!Object.isString(string)) return [];
  string = string.strip();
  return string ? string.split(/\s+/) : [];
}

Array.from = $A;


(function() {
  var arrayProto = Array.prototype,
      slice = arrayProto.slice,
      _each = arrayProto.forEach; // use native browser JS 1.6 implementation if available

  function each(iterator) {
    for (var i = 0, length = this.length; i < length; i++)
      iterator(this[i]);
  }
  if (!_each) _each = each;

  function clear() {
    this.length = 0;
    return this;
  }

  function first() {
    return this[0];
  }

  function last() {
    return this[this.length - 1];
  }

  function compact() {
    return this.select(function(value) {
      return value != null;
    });
  }

  function flatten() {
    return this.inject([], function(array, value) {
      if (Object.isArray(value))
        return array.concat(value.flatten());
      array.push(value);
      return array;
    });
  }

  function without() {
    var values = slice.call(arguments, 0);
    return this.select(function(value) {
      return !values.include(value);
    });
  }

  function reverse(inline) {
    return (inline !== false ? this : this.toArray())._reverse();
  }

  function uniq(sorted) {
    return this.inject([], function(array, value, index) {
      if (0 == index || (sorted ? array.last() != value : !array.include(value)))
        array.push(value);
      return array;
    });
  }

  function intersect(array) {
    return this.uniq().findAll(function(item) {
      return array.detect(function(value) { return item === value });
    });
  }


  function clone() {
    return slice.call(this, 0);
  }

  function size() {
    return this.length;
  }

  function inspect() {
    return '[' + this.map(Object.inspect).join(', ') + ']';
  }

  function toJSON() {
    var results = [];
    this.each(function(object) {
      var value = Object.toJSON(object);
      if (!Object.isUndefined(value)) results.push(value);
    });
    return '[' + results.join(', ') + ']';
  }

  function indexOf(item, i) {
    i || (i = 0);
    var length = this.length;
    if (i < 0) i = length + i;
    for (; i < length; i++)
      if (this[i] === item) return i;
    return -1;
  }

  function lastIndexOf(item, i) {
    i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
    var n = this.slice(0, i).reverse().indexOf(item);
    return (n < 0) ? n : i - n - 1;
  }

  function concat() {
    var array = slice.call(this, 0), item;
    for (var i = 0, length = arguments.length; i < length; i++) {
      item = arguments[i];
      if (Object.isArray(item) && !('callee' in item)) {
        for (var j = 0, arrayLength = item.length; j < arrayLength; j++)
          array.push(item[j]);
      } else {
        array.push(item);
      }
    }
    return array;
  }

  Object.extend(arrayProto, Enumerable);

  if (!arrayProto._reverse)
    arrayProto._reverse = arrayProto.reverse;

  Object.extend(arrayProto, {
    _each:     _each,
    clear:     clear,
    first:     first,
    last:      last,
    compact:   compact,
    flatten:   flatten,
    without:   without,
    reverse:   reverse,
    uniq:      uniq,
    intersect: intersect,
    clone:     clone,
    toArray:   clone,
    size:      size,
    inspect:   inspect,
    toJSON:    toJSON
  });

  var CONCAT_ARGUMENTS_BUGGY = (function() {
    return [].concat(arguments)[0][0] !== 1;
  })(1,2)

  if (CONCAT_ARGUMENTS_BUGGY) arrayProto.concat = concat;

  if (!arrayProto.indexOf) arrayProto.indexOf = indexOf;
  if (!arrayProto.lastIndexOf) arrayProto.lastIndexOf = lastIndexOf;
})();
function $H(object) {
  return new Hash(object);
};

var Hash = Class.create(Enumerable, (function() {
  function initialize(object) {
    this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
  }

  function _each(iterator) {
    for (var key in this._object) {
      var value = this._object[key], pair = [key, value];
      pair.key = key;
      pair.value = value;
      iterator(pair);
    }
  }

  function set(key, value) {
    return this._object[key] = value;
  }

  function get(key) {
    if (this._object[key] !== Object.prototype[key])
      return this._object[key];
  }

  function unset(key) {
    var value = this._object[key];
    delete this._object[key];
    return value;
  }

  function toObject() {
    return Object.clone(this._object);
  }

  function keys() {
    return this.pluck('key');
  }

  function values() {
    return this.pluck('value');
  }

  function index(value) {
    var match = this.detect(function(pair) {
      return pair.value === value;
    });
    return match && match.key;
  }

  function merge(object) {
    return this.clone().update(object);
  }

  function update(object) {
    return new Hash(object).inject(this, function(result, pair) {
      result.set(pair.key, pair.value);
      return result;
    });
  }

  function toQueryPair(key, value) {
    if (Object.isUndefined(value)) return key;
    return key + '=' + encodeURIComponent(String.interpret(value));
  }

  function toQueryString() {
    return this.inject([], function(results, pair) {
      var key = encodeURIComponent(pair.key), values = pair.value;

      if (values && typeof values == 'object') {
        if (Object.isArray(values))
          return results.concat(values.map(toQueryPair.curry(key)));
      } else results.push(toQueryPair(key, values));
      return results;
    }).join('&');
  }

  function inspect() {
    return '#<Hash:{' + this.map(function(pair) {
      return pair.map(Object.inspect).join(': ');
    }).join(', ') + '}>';
  }

  function toJSON() {
    return Object.toJSON(this.toObject());
  }

  function clone() {
    return new Hash(this);
  }

  return {
    initialize:             initialize,
    _each:                  _each,
    set:                    set,
    get:                    get,
    unset:                  unset,
    toObject:               toObject,
    toTemplateReplacements: toObject,
    keys:                   keys,
    values:                 values,
    index:                  index,
    merge:                  merge,
    update:                 update,
    toQueryString:          toQueryString,
    inspect:                inspect,
    toJSON:                 toJSON,
    clone:                  clone
  };
})());

Hash.from = $H;
Object.extend(Number.prototype, (function() {
  function toColorPart() {
    return this.toPaddedString(2, 16);
  }

  function succ() {
    return this + 1;
  }

  function times(iterator, context) {
    $R(0, this, true).each(iterator, context);
    return this;
  }

  function toPaddedString(length, radix) {
    var string = this.toString(radix || 10);
    return '0'.times(length - string.length) + string;
  }

  function toJSON() {
    return isFinite(this) ? this.toString() : 'null';
  }

  function abs() {
    return Math.abs(this);
  }

  function round() {
    return Math.round(this);
  }

  function ceil() {
    return Math.ceil(this);
  }

  function floor() {
    return Math.floor(this);
  }

  return {
    toColorPart:    toColorPart,
    succ:           succ,
    times:          times,
    toPaddedString: toPaddedString,
    toJSON:         toJSON,
    abs:            abs,
    round:          round,
    ceil:           ceil,
    floor:          floor
  };
})());

function $R(start, end, exclusive) {
  return new ObjectRange(start, end, exclusive);
}

var ObjectRange = Class.create(Enumerable, (function() {
  function initialize(start, end, exclusive) {
    this.start = start;
    this.end = end;
    this.exclusive = exclusive;
  }

  function _each(iterator) {
    var value = this.start;
    while (this.include(value)) {
      iterator(value);
      value = value.succ();
    }
  }

  function include(value) {
    if (value < this.start)
      return false;
    if (this.exclusive)
      return value < this.end;
    return value <= this.end;
  }

  return {
    initialize: initialize,
    _each:      _each,
    include:    include
  };
})());



var Ajax = {
  getTransport: function() {
    return Try.these(
      function() {return new XMLHttpRequest()},
      function() {return new ActiveXObject('Msxml2.XMLHTTP')},
      function() {return new ActiveXObject('Microsoft.XMLHTTP')}
    ) || false;
  },

  activeRequestCount: 0
};

Ajax.Responders = {
  responders: [],

  _each: function(iterator) {
    this.responders._each(iterator);
  },

  register: function(responder) {
    if (!this.include(responder))
      this.responders.push(responder);
  },

  unregister: function(responder) {
    this.responders = this.responders.without(responder);
  },

  dispatch: function(callback, request, transport, json) {
    this.each(function(responder) {
      if (Object.isFunction(responder[callback])) {
        try {
          responder[callback].apply(responder, [request, transport, json]);
        } catch (e) { }
      }
    });
  }
};

Object.extend(Ajax.Responders, Enumerable);

Ajax.Responders.register({
  onCreate:   function() { Ajax.activeRequestCount++ },
  onComplete: function() { Ajax.activeRequestCount-- }
});
Ajax.Base = Class.create({
  initialize: function(options) {
    this.options = {
      method:       'post',
      asynchronous: true,
      contentType:  'application/x-www-form-urlencoded',
      encoding:     'UTF-8',
      parameters:   '',
      evalJSON:     true,
      evalJS:       true
    };
    Object.extend(this.options, options || { });

    this.options.method = this.options.method.toLowerCase();

    if (Object.isString(this.options.parameters))
      this.options.parameters = this.options.parameters.toQueryParams();
    else if (Object.isHash(this.options.parameters))
      this.options.parameters = this.options.parameters.toObject();
  }
});
Ajax.Request = Class.create(Ajax.Base, {
  _complete: false,

  initialize: function($super, url, options) {
    $super(options);
    this.transport = Ajax.getTransport();
    this.request(url);
  },

  request: function(url) {
    this.url = url;
    this.method = this.options.method;
    var params = Object.clone(this.options.parameters);

    if (!['get', 'post'].include(this.method)) {
      params['_method'] = this.method;
      this.method = 'post';
    }

    this.parameters = params;

    if (params = Object.toQueryString(params)) {
      if (this.method == 'get')
        this.url += (this.url.include('?') ? '&' : '?') + params;
      else if (/Konqueror|Safari|KHTML/.test(navigator.userAgent))
        params += '&_=';
    }

    try {
      var response = new Ajax.Response(this);
      if (this.options.onCreate) this.options.onCreate(response);
      Ajax.Responders.dispatch('onCreate', this, response);

      this.transport.open(this.method.toUpperCase(), this.url,
        this.options.asynchronous);

      if (this.options.asynchronous) this.respondToReadyState.bind(this).defer(1);

      this.transport.onreadystatechange = this.onStateChange.bind(this);
      this.setRequestHeaders();

      this.body = this.method == 'post' ? (this.options.postBody || params) : null;
      this.transport.send(this.body);

      /* Force Firefox to handle ready state 4 for synchronous requests */
      if (!this.options.asynchronous && this.transport.overrideMimeType)
        this.onStateChange();

    }
    catch (e) {
      this.dispatchException(e);
    }
  },

  onStateChange: function() {
    var readyState = this.transport.readyState;
    if (readyState > 1 && !((readyState == 4) && this._complete))
      this.respondToReadyState(this.transport.readyState);
  },

  setRequestHeaders: function() {
    var headers = {
      'X-Requested-With': 'XMLHttpRequest',
      'X-Prototype-Version': Prototype.Version,
      'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
    };

    if (this.method == 'post') {
      headers['Content-type'] = this.options.contentType +
        (this.options.encoding ? '; charset=' + this.options.encoding : '');

      /* Force "Connection: close" for older Mozilla browsers to work
       * around a bug where XMLHttpRequest sends an incorrect
       * Content-length header. See Mozilla Bugzilla #246651.
       */
      if (this.transport.overrideMimeType &&
          (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
            headers['Connection'] = 'close';
    }

    if (typeof this.options.requestHeaders == 'object') {
      var extras = this.options.requestHeaders;

      if (Object.isFunction(extras.push))
        for (var i = 0, length = extras.length; i < length; i += 2)
          headers[extras[i]] = extras[i+1];
      else
        $H(extras).each(function(pair) { headers[pair.key] = pair.value });
    }

    for (var name in headers)
      this.transport.setRequestHeader(name, headers[name]);
  },

  success: function() {
    var status = this.getStatus();
    return !status || (status >= 200 && status < 300);
  },

  getStatus: function() {
    try {
      return this.transport.status || 0;
    } catch (e) { return 0 }
  },

  respondToReadyState: function(readyState) {
    var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this);

    if (state == 'Complete') {
      try {
        this._complete = true;
        (this.options['on' + response.status]
         || this.options['on' + (this.success() ? 'Success' : 'Failure')]
         || Prototype.emptyFunction)(response, response.headerJSON);
      } catch (e) {
        this.dispatchException(e);
      }

      var contentType = response.getHeader('Content-type');
      if (this.options.evalJS == 'force'
          || (this.options.evalJS && this.isSameOrigin() && contentType
          && contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
        this.evalResponse();
    }

    try {
      (this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON);
      Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON);
    } catch (e) {
      this.dispatchException(e);
    }

    if (state == 'Complete') {
      this.transport.onreadystatechange = Prototype.emptyFunction;
    }
  },

  isSameOrigin: function() {
    var m = this.url.match(/^\s*https?:\/\/[^\/]*/);
    return !m || (m[0] == '#{protocol}//#{domain}#{port}'.interpolate({
      protocol: location.protocol,
      domain: document.domain,
      port: location.port ? ':' + location.port : ''
    }));
  },

  getHeader: function(name) {
    try {
      return this.transport.getResponseHeader(name) || null;
    } catch (e) { return null; }
  },

  evalResponse: function() {
    try {
      return eval((this.transport.responseText || '').unfilterJSON());
    } catch (e) {
      this.dispatchException(e);
    }
  },

  dispatchException: function(exception) {
    (this.options.onException || Prototype.emptyFunction)(this, exception);
    Ajax.Responders.dispatch('onException', this, exception);
  }
});

Ajax.Request.Events =
  ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];








Ajax.Response = Class.create({
  initialize: function(request){
    this.request = request;
    var transport  = this.transport  = request.transport,
        readyState = this.readyState = transport.readyState;

    if((readyState > 2 && !Prototype.Browser.IE) || readyState == 4) {
      this.status       = this.getStatus();
      this.statusText   = this.getStatusText();
      this.responseText = String.interpret(transport.responseText);
      this.headerJSON   = this._getHeaderJSON();
    }

    if(readyState == 4) {
      var xml = transport.responseXML;
      this.responseXML  = Object.isUndefined(xml) ? null : xml;
      this.responseJSON = this._getResponseJSON();
    }
  },

  status:      0,

  statusText: '',

  getStatus: Ajax.Request.prototype.getStatus,

  getStatusText: function() {
    try {
      return this.transport.statusText || '';
    } catch (e) { return '' }
  },

  getHeader: Ajax.Request.prototype.getHeader,

  getAllHeaders: function() {
    try {
      return this.getAllResponseHeaders();
    } catch (e) { return null }
  },

  getResponseHeader: function(name) {
    return this.transport.getResponseHeader(name);
  },

  getAllResponseHeaders: function() {
    return this.transport.getAllResponseHeaders();
  },

  _getHeaderJSON: function() {
    var json = this.getHeader('X-JSON');
    if (!json) return null;
    json = decodeURIComponent(escape(json));
    try {
      return json.evalJSON(this.request.options.sanitizeJSON ||
        !this.request.isSameOrigin());
    } catch (e) {
      this.request.dispatchException(e);
    }
  },

  _getResponseJSON: function() {
    var options = this.request.options;
    if (!options.evalJSON || (options.evalJSON != 'force' &&
      !(this.getHeader('Content-type') || '').include('application/json')) ||
        this.responseText.blank())
          return null;
    try {
      return this.responseText.evalJSON(options.sanitizeJSON ||
        !this.request.isSameOrigin());
    } catch (e) {
      this.request.dispatchException(e);
    }
  }
});

Ajax.Updater = Class.create(Ajax.Request, {
  initialize: function($super, container, url, options) {
    this.container = {
      success: (container.success || container),
      failure: (container.failure || (container.success ? null : container))
    };

    options = Object.clone(options);
    var onComplete = options.onComplete;
    options.onComplete = (function(response, json) {
      this.updateContent(response.responseText);
      if (Object.isFunction(onComplete)) onComplete(response, json);
    }).bind(this);

    $super(url, options);
  },

  updateContent: function(responseText) {
    var receiver = this.container[this.success() ? 'success' : 'failure'],
        options = this.options;

    if (!options.evalScripts) responseText = responseText.stripScripts();

    if (receiver = $(receiver)) {
      if (options.insertion) {
        if (Object.isString(options.insertion)) {
          var insertion = { }; insertion[options.insertion] = responseText;
          receiver.insert(insertion);
        }
        else options.insertion(receiver, responseText);
      }
      else receiver.update(responseText);
    }
  }
});

Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
  initialize: function($super, container, url, options) {
    $super(options);
    this.onComplete = this.options.onComplete;

    this.frequency = (this.options.frequency || 2);
    this.decay = (this.options.decay || 1);

    this.updater = { };
    this.container = container;
    this.url = url;

    this.start();
  },

  start: function() {
    this.options.onComplete = this.updateComplete.bind(this);
    this.onTimerEvent();
  },

  stop: function() {
    this.updater.options.onComplete = undefined;
    clearTimeout(this.timer);
    (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
  },

  updateComplete: function(response) {
    if (this.options.decay) {
      this.decay = (response.responseText == this.lastText ?
        this.decay * this.options.decay : 1);

      this.lastText = response.responseText;
    }
    this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
  },

  onTimerEvent: function() {
    this.updater = new Ajax.Updater(this.container, this.url, this.options);
  }
});



function $(element) {
  if (arguments.length > 1) {
    for (var i = 0, elements = [], length = arguments.length; i < length; i++)
      elements.push($(arguments[i]));
    return elements;
  }
  if (Object.isString(element))
    element = document.getElementById(element);
  return Element.extend(element);
}

if (Prototype.BrowserFeatures.XPath) {
  document._getElementsByXPath = function(expression, parentElement) {
    var results = [];
    var query = document.evaluate(expression, $(parentElement) || document,
      null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
    for (var i = 0, length = query.snapshotLength; i < length; i++)
      results.push(Element.extend(query.snapshotItem(i)));
    return results;
  };
}

/*--------------------------------------------------------------------------*/

if (!window.Node) var Node = { };

if (!Node.ELEMENT_NODE) {
  Object.extend(Node, {
    ELEMENT_NODE: 1,
    ATTRIBUTE_NODE: 2,
    TEXT_NODE: 3,
    CDATA_SECTION_NODE: 4,
    ENTITY_REFERENCE_NODE: 5,
    ENTITY_NODE: 6,
    PROCESSING_INSTRUCTION_NODE: 7,
    COMMENT_NODE: 8,
    DOCUMENT_NODE: 9,
    DOCUMENT_TYPE_NODE: 10,
    DOCUMENT_FRAGMENT_NODE: 11,
    NOTATION_NODE: 12
  });
}


(function(global) {

  var SETATTRIBUTE_IGNORES_NAME = (function(){
    var elForm = document.createElement("form");
    var elInput = document.createElement("input");
    var root = document.documentElement;
    elInput.setAttribute("name", "test");
    elForm.appendChild(elInput);
    root.appendChild(elForm);
    var isBuggy = elForm.elements
      ? (typeof elForm.elements.test == "undefined")
      : null;
    root.removeChild(elForm);
    elForm = elInput = null;
    return isBuggy;
  })();

  var element = global.Element;
  global.Element = function(tagName, attributes) {
    attributes = attributes || { };
    tagName = tagName.toLowerCase();
    var cache = Element.cache;
    if (SETATTRIBUTE_IGNORES_NAME && attributes.name) {
      tagName = '<' + tagName + ' name="' + attributes.name + '">';
      delete attributes.name;
      return Element.writeAttribute(document.createElement(tagName), attributes);
    }
    if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));
    return Element.writeAttribute(cache[tagName].cloneNode(false), attributes);
  };
  Object.extend(global.Element, element || { });
  if (element) global.Element.prototype = element.prototype;
})(this);

Element.cache = { };
Element.idCounter = 1;

Element.Methods = {
  visible: function(element) {
    return $(element).style.display != 'none';
  },

  toggle: function(element) {
    element = $(element);
    Element[Element.visible(element) ? 'hide' : 'show'](element);
    return element;
  },


  hide: function(element) {
    element = $(element);
    element.style.display = 'none';
    return element;
  },

  show: function(element) {
    element = $(element);
    element.style.display = '';
    return element;
  },

  remove: function(element) {
    element = $(element);
    element.parentNode.removeChild(element);
    return element;
  },

  update: (function(){

    var SELECT_ELEMENT_INNERHTML_BUGGY = (function(){
      var el = document.createElement("select"),
          isBuggy = true;
      el.innerHTML = "<option value=\"test\">test</option>";
      if (el.options && el.options[0]) {
        isBuggy = el.options[0].nodeName.toUpperCase() !== "OPTION";
      }
      el = null;
      return isBuggy;
    })();

    var TABLE_ELEMENT_INNERHTML_BUGGY = (function(){
      try {
        var el = document.createElement("table");
        if (el && el.tBodies) {
          el.innerHTML = "<tbody><tr><td>test</td></tr></tbody>";
          var isBuggy = typeof el.tBodies[0] == "undefined";
          el = null;
          return isBuggy;
        }
      } catch (e) {
        return true;
      }
    })();

    var SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING = (function () {
      var s = document.createElement("script"),
          isBuggy = false;
      try {
        s.appendChild(document.createTextNode(""));
        isBuggy = !s.firstChild ||
          s.firstChild && s.firstChild.nodeType !== 3;
      } catch (e) {
        isBuggy = true;
      }
      s = null;
      return isBuggy;
    })();

    function update(element, content) {
      element = $(element);

      if (content && content.toElement)
        content = content.toElement();

      if (Object.isElement(content))
        return element.update().insert(content);

      content = Object.toHTML(content);

      var tagName = element.tagName.toUpperCase();

      if (tagName === 'SCRIPT' && SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING) {
        element.text = content;
        return element;
      }

      if (SELECT_ELEMENT_INNERHTML_BUGGY || TABLE_ELEMENT_INNERHTML_BUGGY) {
        if (tagName in Element._insertionTranslations.tags) {
          while (element.firstChild) {
            element.removeChild(element.firstChild);
          }
          Element._getContentFromAnonymousElement(tagName, content.stripScripts())
            .each(function(node) {
              element.appendChild(node)
            });
        }
        else {
          element.innerHTML = content.stripScripts();
        }
      }
      else {
        element.innerHTML = content.stripScripts();
      }

      content.evalScripts.bind(content).defer();
      return element;
    }

    return update;
  })(),

  replace: function(element, content) {
    element = $(element);
    if (content && content.toElement) content = content.toElement();
    else if (!Object.isElement(content)) {
      content = Object.toHTML(content);
      var range = element.ownerDocument.createRange();
      range.selectNode(element);
      content.evalScripts.bind(content).defer();
      content = range.createContextualFragment(content.stripScripts());
    }
    element.parentNode.replaceChild(content, element);
    return element;
  },

  insert: function(element, insertions) {
    element = $(element);

    if (Object.isString(insertions) || Object.isNumber(insertions) ||
        Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
          insertions = {bottom:insertions};

    var content, insert, tagName, childNodes;

    for (var position in insertions) {
      content  = insertions[position];
      position = position.toLowerCase();
      insert = Element._insertionTranslations[position];

      if (content && content.toElement) content = content.toElement();
      if (Object.isElement(content)) {
        insert(element, content);
        continue;
      }

      content = Object.toHTML(content);

      tagName = ((position == 'before' || position == 'after')
        ? element.parentNode : element).tagName.toUpperCase();

      childNodes = Element._getContentFromAnonymousElement(tagName, content.stripScripts());

      if (position == 'top' || position == 'after') childNodes.reverse();
      childNodes.each(insert.curry(element));

      content.evalScripts.bind(content).defer();
    }

    return element;
  },

  wrap: function(element, wrapper, attributes) {
    element = $(element);
    if (Object.isElement(wrapper))
      $(wrapper).writeAttribute(attributes || { });
    else if (Object.isString(wrapper)) wrapper = new Element(wrapper, attributes);
    else wrapper = new Element('div', wrapper);
    if (element.parentNode)
      element.parentNode.replaceChild(wrapper, element);
    wrapper.appendChild(element);
    return wrapper;
  },

  inspect: function(element) {
    element = $(element);
    var result = '<' + element.tagName.toLowerCase();
    $H({'id': 'id', 'className': 'class'}).each(function(pair) {
      var property = pair.first(), attribute = pair.last();
      var value = (element[property] || '').toString();
      if (value) result += ' ' + attribute + '=' + value.inspect(true);
    });
    return result + '>';
  },

  recursivelyCollect: function(element, property) {
    element = $(element);
    var elements = [];
    while (element = element[property])
      if (element.nodeType == 1)
        elements.push(Element.extend(element));
    return elements;
  },

  ancestors: function(element) {
    return Element.recursivelyCollect(element, 'parentNode');
  },

  descendants: function(element) {
    return Element.select(element, "*");
  },

  firstDescendant: function(element) {
    element = $(element).firstChild;
    while (element && element.nodeType != 1) element = element.nextSibling;
    return $(element);
  },

  immediateDescendants: function(element) {
    if (!(element = $(element).firstChild)) return [];
    while (element && element.nodeType != 1) element = element.nextSibling;
    if (element) return [element].concat($(element).nextSiblings());
    return [];
  },

  previousSiblings: function(element) {
    return Element.recursivelyCollect(element, 'previousSibling');
  },

  nextSiblings: function(element) {
    return Element.recursivelyCollect(element, 'nextSibling');
  },

  siblings: function(element) {
    element = $(element);
    return Element.previousSiblings(element).reverse()
      .concat(Element.nextSiblings(element));
  },

  match: function(element, selector) {
    if (Object.isString(selector))
      selector = new Selector(selector);
    return selector.match($(element));
  },

  up: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(element.parentNode);
    var ancestors = Element.ancestors(element);
    return Object.isNumber(expression) ? ancestors[expression] :
      Selector.findElement(ancestors, expression, index);
  },

  down: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return Element.firstDescendant(element);
    return Object.isNumber(expression) ? Element.descendants(element)[expression] :
      Element.select(element, expression)[index || 0];
  },

  previous: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));
    var previousSiblings = Element.previousSiblings(element);
    return Object.isNumber(expression) ? previousSiblings[expression] :
      Selector.findElement(previousSiblings, expression, index);
  },

  next: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));
    var nextSiblings = Element.nextSiblings(element);
    return Object.isNumber(expression) ? nextSiblings[expression] :
      Selector.findElement(nextSiblings, expression, index);
  },


  select: function(element) {
    var args = Array.prototype.slice.call(arguments, 1);
    return Selector.findChildElements(element, args);
  },

  adjacent: function(element) {
    var args = Array.prototype.slice.call(arguments, 1);
    return Selector.findChildElements(element.parentNode, args).without(element);
  },

  identify: function(element) {
    element = $(element);
    var id = Element.readAttribute(element, 'id');
    if (id) return id;
    do { id = 'anonymous_element_' + Element.idCounter++ } while ($(id));
    Element.writeAttribute(element, 'id', id);
    return id;
  },

  readAttribute: function(element, name) {
    element = $(element);
    if (Prototype.Browser.IE) {
      var t = Element._attributeTranslations.read;
      if (t.values[name]) return t.values[name](element, name);
      if (t.names[name]) name = t.names[name];
      if (name.include(':')) {
        return (!element.attributes || !element.attributes[name]) ? null :
         element.attributes[name].value;
      }
    }
    return element.getAttribute(name);
  },

  writeAttribute: function(element, name, value) {
    element = $(element);
    var attributes = { }, t = Element._attributeTranslations.write;

    if (typeof name == 'object') attributes = name;
    else attributes[name] = Object.isUndefined(value) ? true : value;

    for (var attr in attributes) {
      name = t.names[attr] || attr;
      value = attributes[attr];
      if (t.values[attr]) name = t.values[attr](element, value);
      if (value === false || value === null)
        element.removeAttribute(name);
      else if (value === true)
        element.setAttribute(name, name);
      else element.setAttribute(name, value);
    }
    return element;
  },

  getHeight: function(element) {
    return Element.getDimensions(element).height;
  },

  getWidth: function(element) {
    return Element.getDimensions(element).width;
  },

  classNames: function(element) {
    return new Element.ClassNames(element);
  },

  hasClassName: function(element, className) {
    if (!(element = $(element))) return;
    var elementClassName = element.className;
    return (elementClassName.length > 0 && (elementClassName == className ||
      new RegExp("(^|\\s)" + className + "(\\s|$)").test(elementClassName)));
  },

  addClassName: function(element, className) {
    if (!(element = $(element))) return;
    if (!Element.hasClassName(element, className))
      element.className += (element.className ? ' ' : '') + className;
    return element;
  },

  removeClassName: function(element, className) {
    if (!(element = $(element))) return;
    element.className = element.className.replace(
      new RegExp("(^|\\s+)" + className + "(\\s+|$)"), ' ').strip();
    return element;
  },

  toggleClassName: function(element, className) {
    if (!(element = $(element))) return;
    return Element[Element.hasClassName(element, className) ?
      'removeClassName' : 'addClassName'](element, className);
  },

  cleanWhitespace: function(element) {
    element = $(element);
    var node = element.firstChild;
    while (node) {
      var nextNode = node.nextSibling;
      if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
        element.removeChild(node);
      node = nextNode;
    }
    return element;
  },

  empty: function(element) {
    return $(element).innerHTML.blank();
  },

  descendantOf: function(element, ancestor) {
    element = $(element), ancestor = $(ancestor);

    if (element.compareDocumentPosition)
      return (element.compareDocumentPosition(ancestor) & 8) === 8;

    if (ancestor.contains)
      return ancestor.contains(element) && ancestor !== element;

    while (element = element.parentNode)
      if (element == ancestor) return true;

    return false;
  },

  scrollTo: function(element) {
    element = $(element);
    var pos = Element.cumulativeOffset(element);
    window.scrollTo(pos[0], pos[1]);
    return element;
  },

  getStyle: function(element, style) {
    element = $(element);
    style = style == 'float' ? 'cssFloat' : style.camelize();
    var value = element.style[style];
    if (!value || value == 'auto') {
      var css = document.defaultView.getComputedStyle(element, null);
      value = css ? css[style] : null;
    }
    if (style == 'opacity') return value ? parseFloat(value) : 1.0;
    return value == 'auto' ? null : value;
  },

  getOpacity: function(element) {
    return $(element).getStyle('opacity');
  },

  setStyle: function(element, styles) {
    element = $(element);
    var elementStyle = element.style, match;
    if (Object.isString(styles)) {
      element.style.cssText += ';' + styles;
      return styles.include('opacity') ?
        element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element;
    }
    for (var property in styles)
      if (property == 'opacity') element.setOpacity(styles[property]);
      else
        elementStyle[(property == 'float' || property == 'cssFloat') ?
          (Object.isUndefined(elementStyle.styleFloat) ? 'cssFloat' : 'styleFloat') :
            property] = styles[property];

    return element;
  },

  setOpacity: function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1 || value === '') ? '' :
      (value < 0.00001) ? 0 : value;
    return element;
  },

  getDimensions: function(element) {
    element = $(element);
    var display = Element.getStyle(element, 'display');
    if (display != 'none' && display != null) // Safari bug
      return {width: element.offsetWidth, height: element.offsetHeight};

    var els = element.style;
    var originalVisibility = els.visibility;
    var originalPosition = els.position;
    var originalDisplay = els.display;
    els.visibility = 'hidden';
    if (originalPosition != 'fixed') // Switching fixed to absolute causes issues in Safari
      els.position = 'absolute';
    els.display = 'block';
    var originalWidth = element.clientWidth;
    var originalHeight = element.clientHeight;
    els.display = originalDisplay;
    els.position = originalPosition;
    els.visibility = originalVisibility;
    return {width: originalWidth, height: originalHeight};
  },

  makePositioned: function(element) {
    element = $(element);
    var pos = Element.getStyle(element, 'position');
    if (pos == 'static' || !pos) {
      element._madePositioned = true;
      element.style.position = 'relative';
      if (Prototype.Browser.Opera) {
        element.style.top = 0;
        element.style.left = 0;
      }
    }
    return element;
  },

  undoPositioned: function(element) {
    element = $(element);
    if (element._madePositioned) {
      element._madePositioned = undefined;
      element.style.position =
        element.style.top =
        element.style.left =
        element.style.bottom =
        element.style.right = '';
    }
    return element;
  },

  makeClipping: function(element) {
    element = $(element);
    if (element._overflow) return element;
    element._overflow = Element.getStyle(element, 'overflow') || 'auto';
    if (element._overflow !== 'hidden')
      element.style.overflow = 'hidden';
    return element;
  },

  undoClipping: function(element) {
    element = $(element);
    if (!element._overflow) return element;
    element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
    element._overflow = null;
    return element;
  },

  cumulativeOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  positionedOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
      if (element) {
        if (element.tagName.toUpperCase() == 'BODY') break;
        var p = Element.getStyle(element, 'position');
        if (p !== 'static') break;
      }
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  absolutize: function(element) {
    element = $(element);
    if (Element.getStyle(element, 'position') == 'absolute') return element;

    var offsets = Element.positionedOffset(element);
    var top     = offsets[1];
    var left    = offsets[0];
    var width   = element.clientWidth;
    var height  = element.clientHeight;

    element._originalLeft   = left - parseFloat(element.style.left  || 0);
    element._originalTop    = top  - parseFloat(element.style.top || 0);
    element._originalWidth  = element.style.width;
    element._originalHeight = element.style.height;

    element.style.position = 'absolute';
    element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.width  = width + 'px';
    element.style.height = height + 'px';
    return element;
  },

  relativize: function(element) {
    element = $(element);
    if (Element.getStyle(element, 'position') == 'relative') return element;

    element.style.position = 'relative';
    var top  = parseFloat(element.style.top  || 0) - (element._originalTop || 0);
    var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);

    element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.height = element._originalHeight;
    element.style.width  = element._originalWidth;
    return element;
  },

  cumulativeScrollOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.scrollTop  || 0;
      valueL += element.scrollLeft || 0;
      element = element.parentNode;
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  getOffsetParent: function(element) {
    if (element.offsetParent) return $(element.offsetParent);
    if (element == document.body) return $(element);

    while ((element = element.parentNode) && element != document.body)
      if (Element.getStyle(element, 'position') != 'static')
        return $(element);

    return $(document.body);
  },

  viewportOffset: function(forElement) {
    var valueT = 0, valueL = 0;

    var element = forElement;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;

      if (element.offsetParent == document.body &&
        Element.getStyle(element, 'position') == 'absolute') break;

    } while (element = element.offsetParent);

    element = forElement;
    do {
      if (!Prototype.Browser.Opera || (element.tagName && (element.tagName.toUpperCase() == 'BODY'))) {
        valueT -= element.scrollTop  || 0;
        valueL -= element.scrollLeft || 0;
      }
    } while (element = element.parentNode);

    return Element._returnOffset(valueL, valueT);
  },

  clonePosition: function(element, source) {
    var options = Object.extend({
      setLeft:    true,
      setTop:     true,
      setWidth:   true,
      setHeight:  true,
      offsetTop:  0,
      offsetLeft: 0
    }, arguments[2] || { });

    source = $(source);
    var p = Element.viewportOffset(source);

    element = $(element);
    var delta = [0, 0];
    var parent = null;
    if (Element.getStyle(element, 'position') == 'absolute') {
      parent = Element.getOffsetParent(element);
      delta = Element.viewportOffset(parent);
    }

    if (parent == document.body) {
      delta[0] -= document.body.offsetLeft;
      delta[1] -= document.body.offsetTop;
    }

    if (options.setLeft)   element.style.left  = (p[0] - delta[0] + options.offsetLeft) + 'px';
    if (options.setTop)    element.style.top   = (p[1] - delta[1] + options.offsetTop) + 'px';
    if (options.setWidth)  element.style.width = source.offsetWidth + 'px';
    if (options.setHeight) element.style.height = source.offsetHeight + 'px';
    return element;
  }
};

Object.extend(Element.Methods, {
  getElementsBySelector: Element.Methods.select,

  childElements: Element.Methods.immediateDescendants
});

Element._attributeTranslations = {
  write: {
    names: {
      className: 'class',
      htmlFor:   'for'
    },
    values: { }
  }
};

if (Prototype.Browser.Opera) {
  Element.Methods.getStyle = Element.Methods.getStyle.wrap(
    function(proceed, element, style) {
      switch (style) {
        case 'left': case 'top': case 'right': case 'bottom':
          if (proceed(element, 'position') === 'static') return null;
        case 'height': case 'width':
          if (!Element.visible(element)) return null;

          var dim = parseInt(proceed(element, style), 10);

          if (dim !== element['offset' + style.capitalize()])
            return dim + 'px';

          var properties;
          if (style === 'height') {
            properties = ['border-top-width', 'padding-top',
             'padding-bottom', 'border-bottom-width'];
          }
          else {
            properties = ['border-left-width', 'padding-left',
             'padding-right', 'border-right-width'];
          }
          return properties.inject(dim, function(memo, property) {
            var val = proceed(element, property);
            return val === null ? memo : memo - parseInt(val, 10);
          }) + 'px';
        default: return proceed(element, style);
      }
    }
  );

  Element.Methods.readAttribute = Element.Methods.readAttribute.wrap(
    function(proceed, element, attribute) {
      if (attribute === 'title') return element.title;
      return proceed(element, attribute);
    }
  );
}

else if (Prototype.Browser.IE) {
  Element.Methods.getOffsetParent = Element.Methods.getOffsetParent.wrap(
    function(proceed, element) {
      element = $(element);
      try { element.offsetParent }
      catch(e) { return $(document.body) }
      var position = element.getStyle('position');
      if (position !== 'static') return proceed(element);
      element.setStyle({ position: 'relative' });
      var value = proceed(element);
      element.setStyle({ position: position });
      return value;
    }
  );

  $w('positionedOffset viewportOffset').each(function(method) {
    Element.Methods[method] = Element.Methods[method].wrap(
      function(proceed, element) {
        element = $(element);
        try { element.offsetParent }
        catch(e) { return Element._returnOffset(0,0) }
        var position = element.getStyle('position');
        if (position !== 'static') return proceed(element);
        var offsetParent = element.getOffsetParent();
        if (offsetParent && offsetParent.getStyle('position') === 'fixed')
          offsetParent.setStyle({ zoom: 1 });
        element.setStyle({ position: 'relative' });
        var value = proceed(element);
        element.setStyle({ position: position });
        return value;
      }
    );
  });

  Element.Methods.cumulativeOffset = Element.Methods.cumulativeOffset.wrap(
    function(proceed, element) {
      try { element.offsetParent }
      catch(e) { return Element._returnOffset(0,0) }
      return proceed(element);
    }
  );

  Element.Methods.getStyle = function(element, style) {
    element = $(element);
    style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
    var value = element.style[style];
    if (!value && element.currentStyle) value = element.currentStyle[style];

    if (style == 'opacity') {
      if (value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
        if (value[1]) return parseFloat(value[1]) / 100;
      return 1.0;
    }

    if (value == 'auto') {
      if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none'))
        return element['offset' + style.capitalize()] + 'px';
      return null;
    }
    return value;
  };

  Element.Methods.setOpacity = function(element, value) {
    function stripAlpha(filter){
      return filter.replace(/alpha\([^\)]*\)/gi,'');
    }
    element = $(element);
    var currentStyle = element.currentStyle;
    if ((currentStyle && !currentStyle.hasLayout) ||
      (!currentStyle && element.style.zoom == 'normal'))
        element.style.zoom = 1;

    var filter = element.getStyle('filter'), style = element.style;
    if (value == 1 || value === '') {
      (filter = stripAlpha(filter)) ?
        style.filter = filter : style.removeAttribute('filter');
      return element;
    } else if (value < 0.00001) value = 0;
    style.filter = stripAlpha(filter) +
      'alpha(opacity=' + (value * 100) + ')';
    return element;
  };

  Element._attributeTranslations = (function(){

    var classProp = 'className';
    var forProp = 'for';

    var el = document.createElement('div');

    el.setAttribute(classProp, 'x');

    if (el.className !== 'x') {
      el.setAttribute('class', 'x');
      if (el.className === 'x') {
        classProp = 'class';
      }
    }
    el = null;

    el = document.createElement('label');
    el.setAttribute(forProp, 'x');
    if (el.htmlFor !== 'x') {
      el.setAttribute('htmlFor', 'x');
      if (el.htmlFor === 'x') {
        forProp = 'htmlFor';
      }
    }
    el = null;

    return {
      read: {
        names: {
          'class':      classProp,
          'className':  classProp,
          'for':        forProp,
          'htmlFor':    forProp
        },
        values: {
          _getAttr: function(element, attribute) {
            return element.getAttribute(attribute);
          },
          _getAttr2: function(element, attribute) {
            return element.getAttribute(attribute, 2);
          },
          _getAttrNode: function(element, attribute) {
            var node = element.getAttributeNode(attribute);
            return node ? node.value : "";
          },
          _getEv: (function(){

            var el = document.createElement('div');
            el.onclick = Prototype.emptyFunction;
            var value = el.getAttribute('onclick');
            var f;

            if (String(value).indexOf('{') > -1) {
              f = function(element, attribute) {
                attribute = element.getAttribute(attribute);
                if (!attribute) return null;
                attribute = attribute.toString();
                attribute = attribute.split('{')[1];
                attribute = attribute.split('}')[0];
                return attribute.strip();
              };
            }
            else if (value === '') {
              f = function(element, attribute) {
                attribute = element.getAttribute(attribute);
                if (!attribute) return null;
                return attribute.strip();
              };
            }
            el = null;
            return f;
          })(),
          _flag: function(element, attribute) {
            return $(element).hasAttribute(attribute) ? attribute : null;
          },
          style: function(element) {
            return element.style.cssText.toLowerCase();
          },
          title: function(element) {
            return element.title;
          }
        }
      }
    }
  })();

  Element._attributeTranslations.write = {
    names: Object.extend({
      cellpadding: 'cellPadding',
      cellspacing: 'cellSpacing'
    }, Element._attributeTranslations.read.names),
    values: {
      checked: function(element, value) {
        element.checked = !!value;
      },

      style: function(element, value) {
        element.style.cssText = value ? value : '';
      }
    }
  };

  Element._attributeTranslations.has = {};

  $w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' +
      'encType maxLength readOnly longDesc frameBorder').each(function(attr) {
    Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
    Element._attributeTranslations.has[attr.toLowerCase()] = attr;
  });

  (function(v) {
    Object.extend(v, {
      href:        v._getAttr2,
      src:         v._getAttr2,
      type:        v._getAttr,
      action:      v._getAttrNode,
      disabled:    v._flag,
      checked:     v._flag,
      readonly:    v._flag,
      multiple:    v._flag,
      onload:      v._getEv,
      onunload:    v._getEv,
      onclick:     v._getEv,
      ondblclick:  v._getEv,
      onmousedown: v._getEv,
      onmouseup:   v._getEv,
      onmouseover: v._getEv,
      onmousemove: v._getEv,
      onmouseout:  v._getEv,
      onfocus:     v._getEv,
      onblur:      v._getEv,
      onkeypress:  v._getEv,
      onkeydown:   v._getEv,
      onkeyup:     v._getEv,
      onsubmit:    v._getEv,
      onreset:     v._getEv,
      onselect:    v._getEv,
      onchange:    v._getEv
    });
  })(Element._attributeTranslations.read.values);

  if (Prototype.BrowserFeatures.ElementExtensions) {
    (function() {
      function _descendants(element) {
        var nodes = element.getElementsByTagName('*'), results = [];
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.tagName !== "!") // Filter out comment nodes.
            results.push(node);
        return results;
      }

      Element.Methods.down = function(element, expression, index) {
        element = $(element);
        if (arguments.length == 1) return element.firstDescendant();
        return Object.isNumber(expression) ? _descendants(element)[expression] :
          Element.select(element, expression)[index || 0];
      }
    })();
  }

}

else if (Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent)) {
  Element.Methods.setOpacity = function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1) ? 0.999999 :
      (value === '') ? '' : (value < 0.00001) ? 0 : value;
    return element;
  };
}

else if (Prototype.Browser.WebKit) {
  Element.Methods.setOpacity = function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1 || value === '') ? '' :
      (value < 0.00001) ? 0 : value;

    if (value == 1)
      if(element.tagName.toUpperCase() == 'IMG' && element.width) {
        element.width++; element.width--;
      } else try {
        var n = document.createTextNode(' ');
        element.appendChild(n);
        element.removeChild(n);
      } catch (e) { }

    return element;
  };

  Element.Methods.cumulativeOffset = function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      if (element.offsetParent == document.body)
        if (Element.getStyle(element, 'position') == 'absolute') break;

      element = element.offsetParent;
    } while (element);

    return Element._returnOffset(valueL, valueT);
  };
}

if ('outerHTML' in document.documentElement) {
  Element.Methods.replace = function(element, content) {
    element = $(element);

    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) {
      element.parentNode.replaceChild(content, element);
      return element;
    }

    content = Object.toHTML(content);
    var parent = element.parentNode, tagName = parent.tagName.toUpperCase();

    if (Element._insertionTranslations.tags[tagName]) {
      var nextSibling = element.next();
      var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
      parent.removeChild(element);
      if (nextSibling)
        fragments.each(function(node) { parent.insertBefore(node, nextSibling) });
      else
        fragments.each(function(node) { parent.appendChild(node) });
    }
    else element.outerHTML = content.stripScripts();

    content.evalScripts.bind(content).defer();
    return element;
  };
}

Element._returnOffset = function(l, t) {
  var result = [l, t];
  result.left = l;
  result.top = t;
  return result;
};

Element._getContentFromAnonymousElement = function(tagName, html) {
  var div = new Element('div'), t = Element._insertionTranslations.tags[tagName];
  if (t) {
    div.innerHTML = t[0] + html + t[1];
    t[2].times(function() { div = div.firstChild });
  } else div.innerHTML = html;
  return $A(div.childNodes);
};

Element._insertionTranslations = {
  before: function(element, node) {
    element.parentNode.insertBefore(node, element);
  },
  top: function(element, node) {
    element.insertBefore(node, element.firstChild);
  },
  bottom: function(element, node) {
    element.appendChild(node);
  },
  after: function(element, node) {
    element.parentNode.insertBefore(node, element.nextSibling);
  },
  tags: {
    TABLE:  ['<table>',                '</table>',                   1],
    TBODY:  ['<table><tbody>',         '</tbody></table>',           2],
    TR:     ['<table><tbody><tr>',     '</tr></tbody></table>',      3],
    TD:     ['<table><tbody><tr><td>', '</td></tr></tbody></table>', 4],
    SELECT: ['<select>',               '</select>',                  1]
  }
};

(function() {
  var tags = Element._insertionTranslations.tags;
  Object.extend(tags, {
    THEAD: tags.TBODY,
    TFOOT: tags.TBODY,
    TH:    tags.TD
  });
})();

Element.Methods.Simulated = {
  hasAttribute: function(element, attribute) {
    attribute = Element._attributeTranslations.has[attribute] || attribute;
    var node = $(element).getAttributeNode(attribute);
    return !!(node && node.specified);
  }
};

Element.Methods.ByTag = { };

Object.extend(Element, Element.Methods);

(function(div) {

  if (!Prototype.BrowserFeatures.ElementExtensions && div['__proto__']) {
    window.HTMLElement = { };
    window.HTMLElement.prototype = div['__proto__'];
    Prototype.BrowserFeatures.ElementExtensions = true;
  }

  div = null;

})(document.createElement('div'))

Element.extend = (function() {

  function checkDeficiency(tagName) {
    if (typeof window.Element != 'undefined') {
      var proto = window.Element.prototype;
      if (proto) {
        var id = '_' + (Math.random()+'').slice(2);
        var el = document.createElement(tagName);
        proto[id] = 'x';
        var isBuggy = (el[id] !== 'x');
        delete proto[id];
        el = null;
        return isBuggy;
      }
    }
    return false;
  }

  function extendElementWith(element, methods) {
    for (var property in methods) {
      var value = methods[property];
      if (Object.isFunction(value) && !(property in element))
        element[property] = value.methodize();
    }
  }

  var HTMLOBJECTELEMENT_PROTOTYPE_BUGGY = checkDeficiency('object');

  if (Prototype.BrowserFeatures.SpecificElementExtensions) {
    if (HTMLOBJECTELEMENT_PROTOTYPE_BUGGY) {
      return function(element) {
        if (element && typeof element._extendedByPrototype == 'undefined') {
          var t = element.tagName;
          if (t && (/^(?:object|applet|embed)$/i.test(t))) {
            extendElementWith(element, Element.Methods);
            extendElementWith(element, Element.Methods.Simulated);
            extendElementWith(element, Element.Methods.ByTag[t.toUpperCase()]);
          }
        }
        return element;
      }
    }
    return Prototype.K;
  }

  var Methods = { }, ByTag = Element.Methods.ByTag;

  var extend = Object.extend(function(element) {
    if (!element || typeof element._extendedByPrototype != 'undefined' ||
        element.nodeType != 1 || element == window) return element;

    var methods = Object.clone(Methods),
        tagName = element.tagName.toUpperCase();

    if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);

    extendElementWith(element, methods);

    element._extendedByPrototype = Prototype.emptyFunction;
    return element;

  }, {
    refresh: function() {
      if (!Prototype.BrowserFeatures.ElementExtensions) {
        Object.extend(Methods, Element.Methods);
        Object.extend(Methods, Element.Methods.Simulated);
      }
    }
  });

  extend.refresh();
  return extend;
})();

Element.hasAttribute = function(element, attribute) {
  if (element.hasAttribute) return element.hasAttribute(attribute);
  return Element.Methods.Simulated.hasAttribute(element, attribute);
};

Element.addMethods = function(methods) {
  var F = Prototype.BrowserFeatures, T = Element.Methods.ByTag;

  if (!methods) {
    Object.extend(Form, Form.Methods);
    Object.extend(Form.Element, Form.Element.Methods);
    Object.extend(Element.Methods.ByTag, {
      "FORM":     Object.clone(Form.Methods),
      "INPUT":    Object.clone(Form.Element.Methods),
      "SELECT":   Object.clone(Form.Element.Methods),
      "TEXTAREA": Object.clone(Form.Element.Methods)
    });
  }

  if (arguments.length == 2) {
    var tagName = methods;
    methods = arguments[1];
  }

  if (!tagName) Object.extend(Element.Methods, methods || { });
  else {
    if (Object.isArray(tagName)) tagName.each(extend);
    else extend(tagName);
  }

  function extend(tagName) {
    tagName = tagName.toUpperCase();
    if (!Element.Methods.ByTag[tagName])
      Element.Methods.ByTag[tagName] = { };
    Object.extend(Element.Methods.ByTag[tagName], methods);
  }

  function copy(methods, destination, onlyIfAbsent) {
    onlyIfAbsent = onlyIfAbsent || false;
    for (var property in methods) {
      var value = methods[property];
      if (!Object.isFunction(value)) continue;
      if (!onlyIfAbsent || !(property in destination))
        destination[property] = value.methodize();
    }
  }

  function findDOMClass(tagName) {
    var klass;
    var trans = {
      "OPTGROUP": "OptGroup", "TEXTAREA": "TextArea", "P": "Paragraph",
      "FIELDSET": "FieldSet", "UL": "UList", "OL": "OList", "DL": "DList",
      "DIR": "Directory", "H1": "Heading", "H2": "Heading", "H3": "Heading",
      "H4": "Heading", "H5": "Heading", "H6": "Heading", "Q": "Quote",
      "INS": "Mod", "DEL": "Mod", "A": "Anchor", "IMG": "Image", "CAPTION":
      "TableCaption", "COL": "TableCol", "COLGROUP": "TableCol", "THEAD":
      "TableSection", "TFOOT": "TableSection", "TBODY": "TableSection", "TR":
      "TableRow", "TH": "TableCell", "TD": "TableCell", "FRAMESET":
      "FrameSet", "IFRAME": "IFrame"
    };
    if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element';
    if (window[klass]) return window[klass];
    klass = 'HTML' + tagName + 'Element';
    if (window[klass]) return window[klass];
    klass = 'HTML' + tagName.capitalize() + 'Element';
    if (window[klass]) return window[klass];

    var element = document.createElement(tagName);
    var proto = element['__proto__'] || element.constructor.prototype;
    element = null;
    return proto;
  }

  var elementPrototype = window.HTMLElement ? HTMLElement.prototype :
   Element.prototype;

  if (F.ElementExtensions) {
    copy(Element.Methods, elementPrototype);
    copy(Element.Methods.Simulated, elementPrototype, true);
  }

  if (F.SpecificElementExtensions) {
    for (var tag in Element.Methods.ByTag) {
      var klass = findDOMClass(tag);
      if (Object.isUndefined(klass)) continue;
      copy(T[tag], klass.prototype);
    }
  }

  Object.extend(Element, Element.Methods);
  delete Element.ByTag;

  if (Element.extend.refresh) Element.extend.refresh();
  Element.cache = { };
};


document.viewport = {

  getDimensions: function() {
    return { width: this.getWidth(), height: this.getHeight() };
  },

  getScrollOffsets: function() {
    return Element._returnOffset(
      window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
      window.pageYOffset || document.documentElement.scrollTop  || document.body.scrollTop);
  }
};

(function(viewport) {
  var B = Prototype.Browser, doc = document, element, property = {};

  function getRootElement() {
    if (B.WebKit && !doc.evaluate)
      return document;

    if (B.Opera && window.parseFloat(window.opera.version()) < 9.5)
      return document.body;

    return document.documentElement;
  }

  function define(D) {
    if (!element) element = getRootElement();

    property[D] = 'client' + D;

    viewport['get' + D] = function() { return element[property[D]] };
    return viewport['get' + D]();
  }

  viewport.getWidth  = define.curry('Width');

  viewport.getHeight = define.curry('Height');
})(document.viewport);


Element.Storage = {
  UID: 1
};

Element.addMethods({
  getStorage: function(element) {
    if (!(element = $(element))) return;

    var uid;
    if (element === window) {
      uid = 0;
    } else {
      if (typeof element._prototypeUID === "undefined")
        element._prototypeUID = [Element.Storage.UID++];
      uid = element._prototypeUID[0];
    }

    if (!Element.Storage[uid])
      Element.Storage[uid] = $H();

    return Element.Storage[uid];
  },

  store: function(element, key, value) {
    if (!(element = $(element))) return;

    if (arguments.length === 2) {
      Element.getStorage(element).update(key);
    } else {
      Element.getStorage(element).set(key, value);
    }

    return element;
  },

  retrieve: function(element, key, defaultValue) {
    if (!(element = $(element))) return;
    var hash = Element.getStorage(element), value = hash.get(key);

    if (Object.isUndefined(value)) {
      hash.set(key, defaultValue);
      value = defaultValue;
    }

    return value;
  },

  clone: function(element, deep) {
    if (!(element = $(element))) return;
    var clone = element.cloneNode(deep);
    clone._prototypeUID = void 0;
    if (deep) {
      var descendants = Element.select(clone, '*'),
          i = descendants.length;
      while (i--) {
        descendants[i]._prototypeUID = void 0;
      }
    }
    return Element.extend(clone);
  }
});
/* Portions of the Selector class are derived from Jack Slocum's DomQuery,
 * part of YUI-Ext version 0.40, distributed under the terms of an MIT-style
 * license.  Please see http://www.yui-ext.com/ for more information. */

var Selector = Class.create({
  initialize: function(expression) {
    this.expression = expression.strip();

    if (this.shouldUseSelectorsAPI()) {
      this.mode = 'selectorsAPI';
    } else if (this.shouldUseXPath()) {
      this.mode = 'xpath';
      this.compileXPathMatcher();
    } else {
      this.mode = "normal";
      this.compileMatcher();
    }

  },

  shouldUseXPath: (function() {

    var IS_DESCENDANT_SELECTOR_BUGGY = (function(){
      var isBuggy = false;
      if (document.evaluate && window.XPathResult) {
        var el = document.createElement('div');
        el.innerHTML = '<ul><li></li></ul><div><ul><li></li></ul></div>';

        var xpath = ".//*[local-name()='ul' or local-name()='UL']" +
          "//*[local-name()='li' or local-name()='LI']";

        var result = document.evaluate(xpath, el, null,
          XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);

        isBuggy = (result.snapshotLength !== 2);
        el = null;
      }
      return isBuggy;
    })();

    return function() {
      if (!Prototype.BrowserFeatures.XPath) return false;

      var e = this.expression;

      if (Prototype.Browser.WebKit &&
       (e.include("-of-type") || e.include(":empty")))
        return false;

      if ((/(\[[\w-]*?:|:checked)/).test(e))
        return false;

      if (IS_DESCENDANT_SELECTOR_BUGGY) return false;

      return true;
    }

  })(),

  shouldUseSelectorsAPI: function() {
    if (!Prototype.BrowserFeatures.SelectorsAPI) return false;

    if (Selector.CASE_INSENSITIVE_CLASS_NAMES) return false;

    if (!Selector._div) Selector._div = new Element('div');

    try {
      Selector._div.querySelector(this.expression);
    } catch(e) {
      return false;
    }

    return true;
  },

  compileMatcher: function() {
    var e = this.expression, ps = Selector.patterns, h = Selector.handlers,
        c = Selector.criteria, le, p, m, len = ps.length, name;

    if (Selector._cache[e]) {
      this.matcher = Selector._cache[e];
      return;
    }

    this.matcher = ["this.matcher = function(root) {",
                    "var r = root, h = Selector.handlers, c = false, n;"];

    while (e && le != e && (/\S/).test(e)) {
      le = e;
      for (var i = 0; i<len; i++) {
        p = ps[i].re;
        name = ps[i].name;
        if (m = e.match(p)) {
          this.matcher.push(Object.isFunction(c[name]) ? c[name](m) :
            new Template(c[name]).evaluate(m));
          e = e.replace(m[0], '');
          break;
        }
      }
    }

    this.matcher.push("return h.unique(n);\n}");
    eval(this.matcher.join('\n'));
    Selector._cache[this.expression] = this.matcher;
  },

  compileXPathMatcher: function() {
    var e = this.expression, ps = Selector.patterns,
        x = Selector.xpath, le, m, len = ps.length, name;

    if (Selector._cache[e]) {
      this.xpath = Selector._cache[e]; return;
    }

    this.matcher = ['.//*'];
    while (e && le != e && (/\S/).test(e)) {
      le = e;
      for (var i = 0; i<len; i++) {
        name = ps[i].name;
        if (m = e.match(ps[i].re)) {
          this.matcher.push(Object.isFunction(x[name]) ? x[name](m) :
            new Template(x[name]).evaluate(m));
          e = e.replace(m[0], '');
          break;
        }
      }
    }

    this.xpath = this.matcher.join('');
    Selector._cache[this.expression] = this.xpath;
  },

  findElements: function(root) {
    root = root || document;
    var e = this.expression, results;

    switch (this.mode) {
      case 'selectorsAPI':
        if (root !== document) {
          var oldId = root.id, id = $(root).identify();
          id = id.replace(/([\.:])/g, "\\$1");
          e = "#" + id + " " + e;
        }

        results = $A(root.querySelectorAll(e)).map(Element.extend);
        root.id = oldId;

        return results;
      case 'xpath':
        return document._getElementsByXPath(this.xpath, root);
      default:
       return this.matcher(root);
    }
  },

  match: function(element) {
    this.tokens = [];

    var e = this.expression, ps = Selector.patterns, as = Selector.assertions;
    var le, p, m, len = ps.length, name;

    while (e && le !== e && (/\S/).test(e)) {
      le = e;
      for (var i = 0; i<len; i++) {
        p = ps[i].re;
        name = ps[i].name;
        if (m = e.match(p)) {
          if (as[name]) {
            this.tokens.push([name, Object.clone(m)]);
            e = e.replace(m[0], '');
          } else {
            return this.findElements(document).include(element);
          }
        }
      }
    }

    var match = true, name, matches;
    for (var i = 0, token; token = this.tokens[i]; i++) {
      name = token[0], matches = token[1];
      if (!Selector.assertions[name](element, matches)) {
        match = false; break;
      }
    }

    return match;
  },

  toString: function() {
    return this.expression;
  },

  inspect: function() {
    return "#<Selector:" + this.expression.inspect() + ">";
  }
});

if (Prototype.BrowserFeatures.SelectorsAPI &&
 document.compatMode === 'BackCompat') {
  Selector.CASE_INSENSITIVE_CLASS_NAMES = (function(){
    var div = document.createElement('div'),
     span = document.createElement('span');

    div.id = "prototype_test_id";
    span.className = 'Test';
    div.appendChild(span);
    var isIgnored = (div.querySelector('#prototype_test_id .test') !== null);
    div = span = null;
    return isIgnored;
  })();
}

Object.extend(Selector, {
  _cache: { },

  xpath: {
    descendant:   "//*",
    child:        "/*",
    adjacent:     "/following-sibling::*[1]",
    laterSibling: '/following-sibling::*',
    tagName:      function(m) {
      if (m[1] == '*') return '';
      return "[local-name()='" + m[1].toLowerCase() +
             "' or local-name()='" + m[1].toUpperCase() + "']";
    },
    className:    "[contains(concat(' ', @class, ' '), ' #{1} ')]",
    id:           "[@id='#{1}']",
    attrPresence: function(m) {
      m[1] = m[1].toLowerCase();
      return new Template("[@#{1}]").evaluate(m);
    },
    attr: function(m) {
      m[1] = m[1].toLowerCase();
      m[3] = m[5] || m[6];
      return new Template(Selector.xpath.operators[m[2]]).evaluate(m);
    },
    pseudo: function(m) {
      var h = Selector.xpath.pseudos[m[1]];
      if (!h) return '';
      if (Object.isFunction(h)) return h(m);
      return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m);
    },
    operators: {
      '=':  "[@#{1}='#{3}']",
      '!=': "[@#{1}!='#{3}']",
      '^=': "[starts-with(@#{1}, '#{3}')]",
      '$=': "[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",
      '*=': "[contains(@#{1}, '#{3}')]",
      '~=': "[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
      '|=': "[contains(concat('-', @#{1}, '-'), '-#{3}-')]"
    },
    pseudos: {
      'first-child': '[not(preceding-sibling::*)]',
      'last-child':  '[not(following-sibling::*)]',
      'only-child':  '[not(preceding-sibling::* or following-sibling::*)]',
      'empty':       "[count(*) = 0 and (count(text()) = 0)]",
      'checked':     "[@checked]",
      'disabled':    "[(@disabled) and (@type!='hidden')]",
      'enabled':     "[not(@disabled) and (@type!='hidden')]",
      'not': function(m) {
        var e = m[6], p = Selector.patterns,
            x = Selector.xpath, le, v, len = p.length, name;

        var exclusion = [];
        while (e && le != e && (/\S/).test(e)) {
          le = e;
          for (var i = 0; i<len; i++) {
            name = p[i].name
            if (m = e.match(p[i].re)) {
              v = Object.isFunction(x[name]) ? x[name](m) : new Template(x[name]).evaluate(m);
              exclusion.push("(" + v.substring(1, v.length - 1) + ")");
              e = e.replace(m[0], '');
              break;
            }
          }
        }
        return "[not(" + exclusion.join(" and ") + ")]";
      },
      'nth-child':      function(m) {
        return Selector.xpath.pseudos.nth("(count(./preceding-sibling::*) + 1) ", m);
      },
      'nth-last-child': function(m) {
        return Selector.xpath.pseudos.nth("(count(./following-sibling::*) + 1) ", m);
      },
      'nth-of-type':    function(m) {
        return Selector.xpath.pseudos.nth("position() ", m);
      },
      'nth-last-of-type': function(m) {
        return Selector.xpath.pseudos.nth("(last() + 1 - position()) ", m);
      },
      'first-of-type':  function(m) {
        m[6] = "1"; return Selector.xpath.pseudos['nth-of-type'](m);
      },
      'last-of-type':   function(m) {
        m[6] = "1"; return Selector.xpath.pseudos['nth-last-of-type'](m);
      },
      'only-of-type':   function(m) {
        var p = Selector.xpath.pseudos; return p['first-of-type'](m) + p['last-of-type'](m);
      },
      nth: function(fragment, m) {
        var mm, formula = m[6], predicate;
        if (formula == 'even') formula = '2n+0';
        if (formula == 'odd')  formula = '2n+1';
        if (mm = formula.match(/^(\d+)$/)) // digit only
          return '[' + fragment + "= " + mm[1] + ']';
        if (mm = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
          if (mm[1] == "-") mm[1] = -1;
          var a = mm[1] ? Number(mm[1]) : 1;
          var b = mm[2] ? Number(mm[2]) : 0;
          predicate = "[((#{fragment} - #{b}) mod #{a} = 0) and " +
          "((#{fragment} - #{b}) div #{a} >= 0)]";
          return new Template(predicate).evaluate({
            fragment: fragment, a: a, b: b });
        }
      }
    }
  },

  criteria: {
    tagName:      'n = h.tagName(n, r, "#{1}", c);      c = false;',
    className:    'n = h.className(n, r, "#{1}", c);    c = false;',
    id:           'n = h.id(n, r, "#{1}", c);           c = false;',
    attrPresence: 'n = h.attrPresence(n, r, "#{1}", c); c = false;',
    attr: function(m) {
      m[3] = (m[5] || m[6]);
      return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}", c); c = false;').evaluate(m);
    },
    pseudo: function(m) {
      if (m[6]) m[6] = m[6].replace(/"/g, '\\"');
      return new Template('n = h.pseudo(n, "#{1}", "#{6}", r, c); c = false;').evaluate(m);
    },
    descendant:   'c = "descendant";',
    child:        'c = "child";',
    adjacent:     'c = "adjacent";',
    laterSibling: 'c = "laterSibling";'
  },

  patterns: [
    { name: 'laterSibling', re: /^\s*~\s*/ },
    { name: 'child',        re: /^\s*>\s*/ },
    { name: 'adjacent',     re: /^\s*\+\s*/ },
    { name: 'descendant',   re: /^\s/ },

    { name: 'tagName',      re: /^\s*(\*|[\w\-]+)(\b|$)?/ },
    { name: 'id',           re: /^#([\w\-\*]+)(\b|$)/ },
    { name: 'className',    re: /^\.([\w\-\*]+)(\b|$)/ },
    { name: 'pseudo',       re: /^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)(\((.*?)\))?(\b|$|(?=\s|[:+~>]))/ },
    { name: 'attrPresence', re: /^\[((?:[\w-]+:)?[\w-]+)\]/ },
    { name: 'attr',         re: /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/ }
  ],

  assertions: {
    tagName: function(element, matches) {
      return matches[1].toUpperCase() == element.tagName.toUpperCase();
    },

    className: function(element, matches) {
      return Element.hasClassName(element, matches[1]);
    },

    id: function(element, matches) {
      return element.id === matches[1];
    },

    attrPresence: function(element, matches) {
      return Element.hasAttribute(element, matches[1]);
    },

    attr: function(element, matches) {
      var nodeValue = Element.readAttribute(element, matches[1]);
      return nodeValue && Selector.operators[matches[2]](nodeValue, matches[5] || matches[6]);
    }
  },

  handlers: {
    concat: function(a, b) {
      for (var i = 0, node; node = b[i]; i++)
        a.push(node);
      return a;
    },

    mark: function(nodes) {
      var _true = Prototype.emptyFunction;
      for (var i = 0, node; node = nodes[i]; i++)
        node._countedByPrototype = _true;
      return nodes;
    },

    unmark: (function(){

      var PROPERTIES_ATTRIBUTES_MAP = (function(){
        var el = document.createElement('div'),
            isBuggy = false,
            propName = '_countedByPrototype',
            value = 'x'
        el[propName] = value;
        isBuggy = (el.getAttribute(propName) === value);
        el = null;
        return isBuggy;
      })();

      return PROPERTIES_ATTRIBUTES_MAP ?
        function(nodes) {
          for (var i = 0, node; node = nodes[i]; i++)
            node.removeAttribute('_countedByPrototype');
          return nodes;
        } :
        function(nodes) {
          for (var i = 0, node; node = nodes[i]; i++)
            node._countedByPrototype = void 0;
          return nodes;
        }
    })(),

    index: function(parentNode, reverse, ofType) {
      parentNode._countedByPrototype = Prototype.emptyFunction;
      if (reverse) {
        for (var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--) {
          var node = nodes[i];
          if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
        }
      } else {
        for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)
          if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
      }
    },

    unique: function(nodes) {
      if (nodes.length == 0) return nodes;
      var results = [], n;
      for (var i = 0, l = nodes.length; i < l; i++)
        if (typeof (n = nodes[i])._countedByPrototype == 'undefined') {
          n._countedByPrototype = Prototype.emptyFunction;
          results.push(Element.extend(n));
        }
      return Selector.handlers.unmark(results);
    },

    descendant: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        h.concat(results, node.getElementsByTagName('*'));
      return results;
    },

    child: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        for (var j = 0, child; child = node.childNodes[j]; j++)
          if (child.nodeType == 1 && child.tagName != '!') results.push(child);
      }
      return results;
    },

    adjacent: function(nodes) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        var next = this.nextElementSibling(node);
        if (next) results.push(next);
      }
      return results;
    },

    laterSibling: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        h.concat(results, Element.nextSiblings(node));
      return results;
    },

    nextElementSibling: function(node) {
      while (node = node.nextSibling)
        if (node.nodeType == 1) return node;
      return null;
    },

    previousElementSibling: function(node) {
      while (node = node.previousSibling)
        if (node.nodeType == 1) return node;
      return null;
    },

    tagName: function(nodes, root, tagName, combinator) {
      var uTagName = tagName.toUpperCase();
      var results = [], h = Selector.handlers;
      if (nodes) {
        if (combinator) {
          if (combinator == "descendant") {
            for (var i = 0, node; node = nodes[i]; i++)
              h.concat(results, node.getElementsByTagName(tagName));
            return results;
          } else nodes = this[combinator](nodes);
          if (tagName == "*") return nodes;
        }
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.tagName.toUpperCase() === uTagName) results.push(node);
        return results;
      } else return root.getElementsByTagName(tagName);
    },

    id: function(nodes, root, id, combinator) {
      var targetNode = $(id), h = Selector.handlers;

      if (root == document) {
        if (!targetNode) return [];
        if (!nodes) return [targetNode];
      } else {
        if (!root.sourceIndex || root.sourceIndex < 1) {
          var nodes = root.getElementsByTagName('*');
          for (var j = 0, node; node = nodes[j]; j++) {
            if (node.id === id) return [node];
          }
        }
      }

      if (nodes) {
        if (combinator) {
          if (combinator == 'child') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (targetNode.parentNode == node) return [targetNode];
          } else if (combinator == 'descendant') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (Element.descendantOf(targetNode, node)) return [targetNode];
          } else if (combinator == 'adjacent') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (Selector.handlers.previousElementSibling(targetNode) == node)
                return [targetNode];
          } else nodes = h[combinator](nodes);
        }
        for (var i = 0, node; node = nodes[i]; i++)
          if (node == targetNode) return [targetNode];
        return [];
      }
      return (targetNode && Element.descendantOf(targetNode, root)) ? [targetNode] : [];
    },

    className: function(nodes, root, className, combinator) {
      if (nodes && combinator) nodes = this[combinator](nodes);
      return Selector.handlers.byClassName(nodes, root, className);
    },

    byClassName: function(nodes, root, className) {
      if (!nodes) nodes = Selector.handlers.descendant([root]);
      var needle = ' ' + className + ' ';
      for (var i = 0, results = [], node, nodeClassName; node = nodes[i]; i++) {
        nodeClassName = node.className;
        if (nodeClassName.length == 0) continue;
        if (nodeClassName == className || (' ' + nodeClassName + ' ').include(needle))
          results.push(node);
      }
      return results;
    },

    attrPresence: function(nodes, root, attr, combinator) {
      if (!nodes) nodes = root.getElementsByTagName("*");
      if (nodes && combinator) nodes = this[combinator](nodes);
      var results = [];
      for (var i = 0, node; node = nodes[i]; i++)
        if (Element.hasAttribute(node, attr)) results.push(node);
      return results;
    },

    attr: function(nodes, root, attr, value, operator, combinator) {
      if (!nodes) nodes = root.getElementsByTagName("*");
      if (nodes && combinator) nodes = this[combinator](nodes);
      var handler = Selector.operators[operator], results = [];
      for (var i = 0, node; node = nodes[i]; i++) {
        var nodeValue = Element.readAttribute(node, attr);
        if (nodeValue === null) continue;
        if (handler(nodeValue, value)) results.push(node);
      }
      return results;
    },

    pseudo: function(nodes, name, value, root, combinator) {
      if (nodes && combinator) nodes = this[combinator](nodes);
      if (!nodes) nodes = root.getElementsByTagName("*");
      return Selector.pseudos[name](nodes, value, root);
    }
  },

  pseudos: {
    'first-child': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (Selector.handlers.previousElementSibling(node)) continue;
          results.push(node);
      }
      return results;
    },
    'last-child': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (Selector.handlers.nextElementSibling(node)) continue;
          results.push(node);
      }
      return results;
    },
    'only-child': function(nodes, value, root) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!h.previousElementSibling(node) && !h.nextElementSibling(node))
          results.push(node);
      return results;
    },
    'nth-child':        function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root);
    },
    'nth-last-child':   function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, true);
    },
    'nth-of-type':      function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, false, true);
    },
    'nth-last-of-type': function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, true, true);
    },
    'first-of-type':    function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, "1", root, false, true);
    },
    'last-of-type':     function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, "1", root, true, true);
    },
    'only-of-type':     function(nodes, formula, root) {
      var p = Selector.pseudos;
      return p['last-of-type'](p['first-of-type'](nodes, formula, root), formula, root);
    },

    getIndices: function(a, b, total) {
      if (a == 0) return b > 0 ? [b] : [];
      return $R(1, total).inject([], function(memo, i) {
        if (0 == (i - b) % a && (i - b) / a >= 0) memo.push(i);
        return memo;
      });
    },

    nth: function(nodes, formula, root, reverse, ofType) {
      if (nodes.length == 0) return [];
      if (formula == 'even') formula = '2n+0';
      if (formula == 'odd')  formula = '2n+1';
      var h = Selector.handlers, results = [], indexed = [], m;
      h.mark(nodes);
      for (var i = 0, node; node = nodes[i]; i++) {
        if (!node.parentNode._countedByPrototype) {
          h.index(node.parentNode, reverse, ofType);
          indexed.push(node.parentNode);
        }
      }
      if (formula.match(/^\d+$/)) { // just a number
        formula = Number(formula);
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.nodeIndex == formula) results.push(node);
      } else if (m = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
        if (m[1] == "-") m[1] = -1;
        var a = m[1] ? Number(m[1]) : 1;
        var b = m[2] ? Number(m[2]) : 0;
        var indices = Selector.pseudos.getIndices(a, b, nodes.length);
        for (var i = 0, node, l = indices.length; node = nodes[i]; i++) {
          for (var j = 0; j < l; j++)
            if (node.nodeIndex == indices[j]) results.push(node);
        }
      }
      h.unmark(nodes);
      h.unmark(indexed);
      return results;
    },

    'empty': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (node.tagName == '!' || node.firstChild) continue;
        results.push(node);
      }
      return results;
    },

    'not': function(nodes, selector, root) {
      var h = Selector.handlers, selectorType, m;
      var exclusions = new Selector(selector).findElements(root);
      h.mark(exclusions);
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!node._countedByPrototype) results.push(node);
      h.unmark(exclusions);
      return results;
    },

    'enabled': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!node.disabled && (!node.type || node.type !== 'hidden'))
          results.push(node);
      return results;
    },

    'disabled': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (node.disabled) results.push(node);
      return results;
    },

    'checked': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (node.checked) results.push(node);
      return results;
    }
  },

  operators: {
    '=':  function(nv, v) { return nv == v; },
    '!=': function(nv, v) { return nv != v; },
    '^=': function(nv, v) { return nv == v || nv && nv.startsWith(v); },
    '$=': function(nv, v) { return nv == v || nv && nv.endsWith(v); },
    '*=': function(nv, v) { return nv == v || nv && nv.include(v); },
    '~=': function(nv, v) { return (' ' + nv + ' ').include(' ' + v + ' '); },
    '|=': function(nv, v) { return ('-' + (nv || "").toUpperCase() +
     '-').include('-' + (v || "").toUpperCase() + '-'); }
  },

  split: function(expression) {
    var expressions = [];
    expression.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {
      expressions.push(m[1].strip());
    });
    return expressions;
  },

  matchElements: function(elements, expression) {
    var matches = $$(expression), h = Selector.handlers;
    h.mark(matches);
    for (var i = 0, results = [], element; element = elements[i]; i++)
      if (element._countedByPrototype) results.push(element);
    h.unmark(matches);
    return results;
  },

  findElement: function(elements, expression, index) {
    if (Object.isNumber(expression)) {
      index = expression; expression = false;
    }
    return Selector.matchElements(elements, expression || '*')[index || 0];
  },

  findChildElements: function(element, expressions) {
    expressions = Selector.split(expressions.join(','));
    var results = [], h = Selector.handlers;
    for (var i = 0, l = expressions.length, selector; i < l; i++) {
      selector = new Selector(expressions[i].strip());
      h.concat(results, selector.findElements(element));
    }
    return (l > 1) ? h.unique(results) : results;
  }
});

if (Prototype.Browser.IE) {
  Object.extend(Selector.handlers, {
    concat: function(a, b) {
      for (var i = 0, node; node = b[i]; i++)
        if (node.tagName !== "!") a.push(node);
      return a;
    }
  });
}

function $$() {
  return Selector.findChildElements(document, $A(arguments));
}

var Form = {
  reset: function(form) {
    form = $(form);
    form.reset();
    return form;
  },

  serializeElements: function(elements, options) {
    if (typeof options != 'object') options = { hash: !!options };
    else if (Object.isUndefined(options.hash)) options.hash = true;
    var key, value, submitted = false, submit = options.submit;

    var data = elements.inject({ }, function(result, element) {
      if (!element.disabled && element.name) {
        key = element.name; value = $(element).getValue();
        if (value != null && element.type != 'file' && (element.type != 'submit' || (!submitted &&
            submit !== false && (!submit || key == submit) && (submitted = true)))) {
          if (key in result) {
            if (!Object.isArray(result[key])) result[key] = [result[key]];
            result[key].push(value);
          }
          else result[key] = value;
        }
      }
      return result;
    });

    return options.hash ? data : Object.toQueryString(data);
  }
};

Form.Methods = {
  serialize: function(form, options) {
    return Form.serializeElements(Form.getElements(form), options);
  },

  getElements: function(form) {
    var elements = $(form).getElementsByTagName('*'),
        element,
        arr = [ ],
        serializers = Form.Element.Serializers;
    for (var i = 0; element = elements[i]; i++) {
      arr.push(element);
    }
    return arr.inject([], function(elements, child) {
      if (serializers[child.tagName.toLowerCase()])
        elements.push(Element.extend(child));
      return elements;
    })
  },

  getInputs: function(form, typeName, name) {
    form = $(form);
    var inputs = form.getElementsByTagName('input');

    if (!typeName && !name) return $A(inputs).map(Element.extend);

    for (var i = 0, matchingInputs = [], length = inputs.length; i < length; i++) {
      var input = inputs[i];
      if ((typeName && input.type != typeName) || (name && input.name != name))
        continue;
      matchingInputs.push(Element.extend(input));
    }

    return matchingInputs;
  },

  disable: function(form) {
    form = $(form);
    Form.getElements(form).invoke('disable');
    return form;
  },

  enable: function(form) {
    form = $(form);
    Form.getElements(form).invoke('enable');
    return form;
  },

  findFirstElement: function(form) {
    var elements = $(form).getElements().findAll(function(element) {
      return 'hidden' != element.type && !element.disabled;
    });
    var firstByIndex = elements.findAll(function(element) {
      return element.hasAttribute('tabIndex') && element.tabIndex >= 0;
    }).sortBy(function(element) { return element.tabIndex }).first();

    return firstByIndex ? firstByIndex : elements.find(function(element) {
      return /^(?:input|select|textarea)$/i.test(element.tagName);
    });
  },

  focusFirstElement: function(form) {
    form = $(form);
    form.findFirstElement().activate();
    return form;
  },

  request: function(form, options) {
    form = $(form), options = Object.clone(options || { });

    var params = options.parameters, action = form.readAttribute('action') || '';
    if (action.blank()) action = window.location.href;
    options.parameters = form.serialize(true);

    if (params) {
      if (Object.isString(params)) params = params.toQueryParams();
      Object.extend(options.parameters, params);
    }

    if (form.hasAttribute('method') && !options.method)
      options.method = form.method;

    return new Ajax.Request(action, options);
  }
};

/*--------------------------------------------------------------------------*/


Form.Element = {
  focus: function(element) {
    $(element).focus();
    return element;
  },

  select: function(element) {
    $(element).select();
    return element;
  }
};

Form.Element.Methods = {

  serialize: function(element) {
    element = $(element);
    if (!element.disabled && element.name) {
      var value = element.getValue();
      if (value != undefined) {
        var pair = { };
        pair[element.name] = value;
        return Object.toQueryString(pair);
      }
    }
    return '';
  },

  getValue: function(element) {
    element = $(element);
    var method = element.tagName.toLowerCase();
    return Form.Element.Serializers[method](element);
  },

  setValue: function(element, value) {
    element = $(element);
    var method = element.tagName.toLowerCase();
    Form.Element.Serializers[method](element, value);
    return element;
  },

  clear: function(element) {
    $(element).value = '';
    return element;
  },

  present: function(element) {
    return $(element).value != '';
  },

  activate: function(element) {
    element = $(element);
    try {
      element.focus();
      if (element.select && (element.tagName.toLowerCase() != 'input' ||
          !(/^(?:button|reset|submit)$/i.test(element.type))))
        element.select();
    } catch (e) { }
    return element;
  },

  disable: function(element) {
    element = $(element);
    element.disabled = true;
    return element;
  },

  enable: function(element) {
    element = $(element);
    element.disabled = false;
    return element;
  }
};

/*--------------------------------------------------------------------------*/

var Field = Form.Element;

var $F = Form.Element.Methods.getValue;

/*--------------------------------------------------------------------------*/

Form.Element.Serializers = {
  input: function(element, value) {
    switch (element.type.toLowerCase()) {
      case 'checkbox':
      case 'radio':
        return Form.Element.Serializers.inputSelector(element, value);
      default:
        return Form.Element.Serializers.textarea(element, value);
    }
  },

  inputSelector: function(element, value) {
    if (Object.isUndefined(value)) return element.checked ? element.value : null;
    else element.checked = !!value;
  },

  textarea: function(element, value) {
    if (Object.isUndefined(value)) return element.value;
    else element.value = value;
  },

  select: function(element, value) {
    if (Object.isUndefined(value))
      return this[element.type == 'select-one' ?
        'selectOne' : 'selectMany'](element);
    else {
      var opt, currentValue, single = !Object.isArray(value);
      for (var i = 0, length = element.length; i < length; i++) {
        opt = element.options[i];
        currentValue = this.optionValue(opt);
        if (single) {
          if (currentValue == value) {
            opt.selected = true;
            return;
          }
        }
        else opt.selected = value.include(currentValue);
      }
    }
  },

  selectOne: function(element) {
    var index = element.selectedIndex;
    return index >= 0 ? this.optionValue(element.options[index]) : null;
  },

  selectMany: function(element) {
    var values, length = element.length;
    if (!length) return null;

    for (var i = 0, values = []; i < length; i++) {
      var opt = element.options[i];
      if (opt.selected) values.push(this.optionValue(opt));
    }
    return values;
  },

  optionValue: function(opt) {
    return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text;
  }
};

/*--------------------------------------------------------------------------*/


Abstract.TimedObserver = Class.create(PeriodicalExecuter, {
  initialize: function($super, element, frequency, callback) {
    $super(callback, frequency);
    this.element   = $(element);
    this.lastValue = this.getValue();
  },

  execute: function() {
    var value = this.getValue();
    if (Object.isString(this.lastValue) && Object.isString(value) ?
        this.lastValue != value : String(this.lastValue) != String(value)) {
      this.callback(this.element, value);
      this.lastValue = value;
    }
  }
});

Form.Element.Observer = Class.create(Abstract.TimedObserver, {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});

Form.Observer = Class.create(Abstract.TimedObserver, {
  getValue: function() {
    return Form.serialize(this.element);
  }
});

/*--------------------------------------------------------------------------*/

Abstract.EventObserver = Class.create({
  initialize: function(element, callback) {
    this.element  = $(element);
    this.callback = callback;

    this.lastValue = this.getValue();
    if (this.element.tagName.toLowerCase() == 'form')
      this.registerFormCallbacks();
    else
      this.registerCallback(this.element);
  },

  onElementEvent: function() {
    var value = this.getValue();
    if (this.lastValue != value) {
      this.callback(this.element, value);
      this.lastValue = value;
    }
  },

  registerFormCallbacks: function() {
    Form.getElements(this.element).each(this.registerCallback, this);
  },

  registerCallback: function(element) {
    if (element.type) {
      switch (element.type.toLowerCase()) {
        case 'checkbox':
        case 'radio':
          Event.observe(element, 'click', this.onElementEvent.bind(this));
          break;
        default:
          Event.observe(element, 'change', this.onElementEvent.bind(this));
          break;
      }
    }
  }
});

Form.Element.EventObserver = Class.create(Abstract.EventObserver, {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});

Form.EventObserver = Class.create(Abstract.EventObserver, {
  getValue: function() {
    return Form.serialize(this.element);
  }
});
(function() {

  var Event = {
    KEY_BACKSPACE: 8,
    KEY_TAB:       9,
    KEY_RETURN:   13,
    KEY_ESC:      27,
    KEY_LEFT:     37,
    KEY_UP:       38,
    KEY_RIGHT:    39,
    KEY_DOWN:     40,
    KEY_DELETE:   46,
    KEY_HOME:     36,
    KEY_END:      35,
    KEY_PAGEUP:   33,
    KEY_PAGEDOWN: 34,
    KEY_INSERT:   45,

    cache: {}
  };

  var docEl = document.documentElement;
  var MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED = 'onmouseenter' in docEl
    && 'onmouseleave' in docEl;

  var _isButton;
  if (Prototype.Browser.IE) {
    var buttonMap = { 0: 1, 1: 4, 2: 2 };
    _isButton = function(event, code) {
      return event.button === buttonMap[code];
    };
  } else if (Prototype.Browser.WebKit) {
    _isButton = function(event, code) {
      switch (code) {
        case 0: return event.which == 1 && !event.metaKey;
        case 1: return event.which == 1 && event.metaKey;
        default: return false;
      }
    };
  } else {
    _isButton = function(event, code) {
      return event.which ? (event.which === code + 1) : (event.button === code);
    };
  }

  function isLeftClick(event)   { return _isButton(event, 0) }

  function isMiddleClick(event) { return _isButton(event, 1) }

  function isRightClick(event)  { return _isButton(event, 2) }

  function element(event) {
    event = Event.extend(event);

    var node = event.target, type = event.type,
     currentTarget = event.currentTarget;

    if (currentTarget && currentTarget.tagName) {
      if (type === 'load' || type === 'error' ||
        (type === 'click' && currentTarget.tagName.toLowerCase() === 'input'
          && currentTarget.type === 'radio'))
            node = currentTarget;
    }

    if (node.nodeType == Node.TEXT_NODE)
      node = node.parentNode;

    return Element.extend(node);
  }

  function findElement(event, expression) {
    var element = Event.element(event);
    if (!expression) return element;
    var elements = [element].concat(element.ancestors());
    return Selector.findElement(elements, expression, 0);
  }

  function pointer(event) {
    return { x: pointerX(event), y: pointerY(event) };
  }

  function pointerX(event) {
    var docElement = document.documentElement,
     body = document.body || { scrollLeft: 0 };

    return event.pageX || (event.clientX +
      (docElement.scrollLeft || body.scrollLeft) -
      (docElement.clientLeft || 0));
  }

  function pointerY(event) {
    var docElement = document.documentElement,
     body = document.body || { scrollTop: 0 };

    return  event.pageY || (event.clientY +
       (docElement.scrollTop || body.scrollTop) -
       (docElement.clientTop || 0));
  }


  function stop(event) {
    Event.extend(event);
    event.preventDefault();
    event.stopPropagation();

    event.stopped = true;
  }

  Event.Methods = {
    isLeftClick: isLeftClick,
    isMiddleClick: isMiddleClick,
    isRightClick: isRightClick,

    element: element,
    findElement: findElement,

    pointer: pointer,
    pointerX: pointerX,
    pointerY: pointerY,

    stop: stop
  };


  var methods = Object.keys(Event.Methods).inject({ }, function(m, name) {
    m[name] = Event.Methods[name].methodize();
    return m;
  });

  if (Prototype.Browser.IE) {
    function _relatedTarget(event) {
      var element;
      switch (event.type) {
        case 'mouseover': element = event.fromElement; break;
        case 'mouseout':  element = event.toElement;   break;
        default: return null;
      }
      return Element.extend(element);
    }

    Object.extend(methods, {
      stopPropagation: function() { this.cancelBubble = true },
      preventDefault:  function() { this.returnValue = false },
      inspect: function() { return '[object Event]' }
    });

    Event.extend = function(event, element) {
      if (!event) return false;
      if (event._extendedByPrototype) return event;

      event._extendedByPrototype = Prototype.emptyFunction;
      var pointer = Event.pointer(event);

      Object.extend(event, {
        target: event.srcElement || element,
        relatedTarget: _relatedTarget(event),
        pageX:  pointer.x,
        pageY:  pointer.y
      });

      return Object.extend(event, methods);
    };
  } else {
    Event.prototype = window.Event.prototype || document.createEvent('HTMLEvents').__proto__;
    Object.extend(Event.prototype, methods);
    Event.extend = Prototype.K;
  }

  function _createResponder(element, eventName, handler) {
    var registry = Element.retrieve(element, 'prototype_event_registry');

    if (Object.isUndefined(registry)) {
      CACHE.push(element);
      registry = Element.retrieve(element, 'prototype_event_registry', $H());
    }

    var respondersForEvent = registry.get(eventName);
    if (Object.isUndefined(respondersForEvent)) {
      respondersForEvent = [];
      registry.set(eventName, respondersForEvent);
    }

    if (respondersForEvent.pluck('handler').include(handler)) return false;

    var responder;
    if (eventName.include(":")) {
      responder = function(event) {
        if (Object.isUndefined(event.eventName))
          return false;

        if (event.eventName !== eventName)
          return false;

        Event.extend(event, element);
        handler.call(element, event);
      };
    } else {
      if (!MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED &&
       (eventName === "mouseenter" || eventName === "mouseleave")) {
        if (eventName === "mouseenter" || eventName === "mouseleave") {
          responder = function(event) {
            Event.extend(event, element);

            var parent = event.relatedTarget;
            while (parent && parent !== element) {
              try { parent = parent.parentNode; }
              catch(e) { parent = element; }
            }

            if (parent === element) return;

            handler.call(element, event);
          };
        }
      } else {
        responder = function(event) {
          Event.extend(event, element);
          handler.call(element, event);
        };
      }
    }

    responder.handler = handler;
    respondersForEvent.push(responder);
    return responder;
  }

  function _destroyCache() {
    for (var i = 0, length = CACHE.length; i < length; i++) {
      Event.stopObserving(CACHE[i]);
      CACHE[i] = null;
    }
  }

  var CACHE = [];

  if (Prototype.Browser.IE)
    window.attachEvent('onunload', _destroyCache);

  if (Prototype.Browser.WebKit)
    window.addEventListener('unload', Prototype.emptyFunction, false);


  var _getDOMEventName = Prototype.K;

  if (!MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED) {
    _getDOMEventName = function(eventName) {
      var translations = { mouseenter: "mouseover", mouseleave: "mouseout" };
      return eventName in translations ? translations[eventName] : eventName;
    };
  }

  function observe(element, eventName, handler) {
    element = $(element);

    var responder = _createResponder(element, eventName, handler);

    if (!responder) return element;

    if (eventName.include(':')) {
      if (element.addEventListener)
        element.addEventListener("dataavailable", responder, false);
      else {
        element.attachEvent("ondataavailable", responder);
        element.attachEvent("onfilterchange", responder);
      }
    } else {
      var actualEventName = _getDOMEventName(eventName);

      if (element.addEventListener)
        element.addEventListener(actualEventName, responder, false);
      else
        element.attachEvent("on" + actualEventName, responder);
    }

    return element;
  }

  function stopObserving(element, eventName, handler) {
    element = $(element);

    var registry = Element.retrieve(element, 'prototype_event_registry');

    if (Object.isUndefined(registry)) return element;

    if (eventName && !handler) {
      var responders = registry.get(eventName);

      if (Object.isUndefined(responders)) return element;

      responders.each( function(r) {
        Element.stopObserving(element, eventName, r.handler);
      });
      return element;
    } else if (!eventName) {
      registry.each( function(pair) {
        var eventName = pair.key, responders = pair.value;

        responders.each( function(r) {
          Element.stopObserving(element, eventName, r.handler);
        });
      });
      return element;
    }

    var responders = registry.get(eventName);

    if (!responders) return;

    var responder = responders.find( function(r) { return r.handler === handler; });
    if (!responder) return element;

    var actualEventName = _getDOMEventName(eventName);

    if (eventName.include(':')) {
      if (element.removeEventListener)
        element.removeEventListener("dataavailable", responder, false);
      else {
        element.detachEvent("ondataavailable", responder);
        element.detachEvent("onfilterchange",  responder);
      }
    } else {
      if (element.removeEventListener)
        element.removeEventListener(actualEventName, responder, false);
      else
        element.detachEvent('on' + actualEventName, responder);
    }

    registry.set(eventName, responders.without(responder));

    return element;
  }

  function fire(element, eventName, memo, bubble) {
    element = $(element);

    if (Object.isUndefined(bubble))
      bubble = true;

    if (element == document && document.createEvent && !element.dispatchEvent)
      element = document.documentElement;

    var event;
    if (document.createEvent) {
      event = document.createEvent('HTMLEvents');
      event.initEvent('dataavailable', true, true);
    } else {
      event = document.createEventObject();
      event.eventType = bubble ? 'ondataavailable' : 'onfilterchange';
    }

    event.eventName = eventName;
    event.memo = memo || { };

    if (document.createEvent)
      element.dispatchEvent(event);
    else
      element.fireEvent(event.eventType, event);

    return Event.extend(event);
  }


  Object.extend(Event, Event.Methods);

  Object.extend(Event, {
    fire:          fire,
    observe:       observe,
    stopObserving: stopObserving
  });

  Element.addMethods({
    fire:          fire,

    observe:       observe,

    stopObserving: stopObserving
  });

  Object.extend(document, {
    fire:          fire.methodize(),

    observe:       observe.methodize(),

    stopObserving: stopObserving.methodize(),

    loaded:        false
  });

  if (window.Event) Object.extend(window.Event, Event);
  else window.Event = Event;
})();

(function() {
  /* Support for the DOMContentLoaded event is based on work by Dan Webb,
     Matthias Miller, Dean Edwards, John Resig, and Diego Perini. */

  var timer;

  function fireContentLoadedEvent() {
    if (document.loaded) return;
    if (timer) window.clearTimeout(timer);
    document.loaded = true;
    document.fire('dom:loaded');
  }

  function checkReadyState() {
    if (document.readyState === 'complete') {
      document.stopObserving('readystatechange', checkReadyState);
      fireContentLoadedEvent();
    }
  }

  function pollDoScroll() {
    try { document.documentElement.doScroll('left'); }
    catch(e) {
      timer = pollDoScroll.defer();
      return;
    }
    fireContentLoadedEvent();
  }

  if (document.addEventListener) {
    document.addEventListener('DOMContentLoaded', fireContentLoadedEvent, false);
  } else {
    document.observe('readystatechange', checkReadyState);
    if (window == top)
      timer = pollDoScroll.defer();
  }

  Event.observe(window, 'load', fireContentLoadedEvent);
})();

Element.addMethods();

/*------------------------------- DEPRECATED -------------------------------*/

Hash.toQueryString = Object.toQueryString;

var Toggle = { display: Element.toggle };

Element.Methods.childOf = Element.Methods.descendantOf;

var Insertion = {
  Before: function(element, content) {
    return Element.insert(element, {before:content});
  },

  Top: function(element, content) {
    return Element.insert(element, {top:content});
  },

  Bottom: function(element, content) {
    return Element.insert(element, {bottom:content});
  },

  After: function(element, content) {
    return Element.insert(element, {after:content});
  }
};

var $continue = new Error('"throw $continue" is deprecated, use "return" instead');

var Position = {
  includeScrollOffsets: false,

  prepare: function() {
    this.deltaX =  window.pageXOffset
                || document.documentElement.scrollLeft
                || document.body.scrollLeft
                || 0;
    this.deltaY =  window.pageYOffset
                || document.documentElement.scrollTop
                || document.body.scrollTop
                || 0;
  },

  within: function(element, x, y) {
    if (this.includeScrollOffsets)
      return this.withinIncludingScrolloffsets(element, x, y);
    this.xcomp = x;
    this.ycomp = y;
    this.offset = Element.cumulativeOffset(element);

    return (y >= this.offset[1] &&
            y <  this.offset[1] + element.offsetHeight &&
            x >= this.offset[0] &&
            x <  this.offset[0] + element.offsetWidth);
  },

  withinIncludingScrolloffsets: function(element, x, y) {
    var offsetcache = Element.cumulativeScrollOffset(element);

    this.xcomp = x + offsetcache[0] - this.deltaX;
    this.ycomp = y + offsetcache[1] - this.deltaY;
    this.offset = Element.cumulativeOffset(element);

    return (this.ycomp >= this.offset[1] &&
            this.ycomp <  this.offset[1] + element.offsetHeight &&
            this.xcomp >= this.offset[0] &&
            this.xcomp <  this.offset[0] + element.offsetWidth);
  },

  overlap: function(mode, element) {
    if (!mode) return 0;
    if (mode == 'vertical')
      return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
        element.offsetHeight;
    if (mode == 'horizontal')
      return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
        element.offsetWidth;
  },


  cumulativeOffset: Element.Methods.cumulativeOffset,

  positionedOffset: Element.Methods.positionedOffset,

  absolutize: function(element) {
    Position.prepare();
    return Element.absolutize(element);
  },

  relativize: function(element) {
    Position.prepare();
    return Element.relativize(element);
  },

  realOffset: Element.Methods.cumulativeScrollOffset,

  offsetParent: Element.Methods.getOffsetParent,

  page: Element.Methods.viewportOffset,

  clone: function(source, target, options) {
    options = options || { };
    return Element.clonePosition(target, source, options);
  }
};

/*--------------------------------------------------------------------------*/

if (!document.getElementsByClassName) document.getElementsByClassName = function(instanceMethods){
  function iter(name) {
    return name.blank() ? null : "[contains(concat(' ', @class, ' '), ' " + name + " ')]";
  }

  instanceMethods.getElementsByClassName = Prototype.BrowserFeatures.XPath ?
  function(element, className) {
    className = className.toString().strip();
    var cond = /\s/.test(className) ? $w(className).map(iter).join('') : iter(className);
    return cond ? document._getElementsByXPath('.//*' + cond, element) : [];
  } : function(element, className) {
    className = className.toString().strip();
    var elements = [], classNames = (/\s/.test(className) ? $w(className) : null);
    if (!classNames && !className) return elements;

    var nodes = $(element).getElementsByTagName('*');
    className = ' ' + className + ' ';

    for (var i = 0, child, cn; child = nodes[i]; i++) {
      if (child.className && (cn = ' ' + child.className + ' ') && (cn.include(className) ||
          (classNames && classNames.all(function(name) {
            return !name.toString().blank() && cn.include(' ' + name + ' ');
          }))))
        elements.push(Element.extend(child));
    }
    return elements;
  };

  return function(className, parentElement) {
    return $(parentElement || document.body).getElementsByClassName(className);
  };
}(Element.Methods);

/*--------------------------------------------------------------------------*/

Element.ClassNames = Class.create();
Element.ClassNames.prototype = {
  initialize: function(element) {
    this.element = $(element);
  },

  _each: function(iterator) {
    this.element.className.split(/\s+/).select(function(name) {
      return name.length > 0;
    })._each(iterator);
  },

  set: function(className) {
    this.element.className = className;
  },

  add: function(classNameToAdd) {
    if (this.include(classNameToAdd)) return;
    this.set($A(this).concat(classNameToAdd).join(' '));
  },

  remove: function(classNameToRemove) {
    if (!this.include(classNameToRemove)) return;
    this.set($A(this).without(classNameToRemove).join(' '));
  },

  toString: function() {
    return $A(this).join(' ');
  }
};

Object.extend(Element.ClassNames.prototype, Enumerable);

/*--------------------------------------------------------------------------*/
// script.aculo.us scriptaculous.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

// Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// For details, see the script.aculo.us web site: http://script.aculo.us/

var Scriptaculous = {
  Version: '1.8.2',
  /*require: function(libraryName) {
    // inserting via DOM fails in Safari 2.0, so brute force approach
    document.write('<script type="text/javascript" src="'+libraryName+'"><\/script>');
  },*/
  REQUIRED_PROTOTYPE: '1.6.0.3',
  load: function() {
    /*function convertVersionString(versionString) {
      var v = versionString.replace(/_.*|\./g, '');
      v = parseInt(v + '0'.times(4-v.length));
      return versionString.indexOf('_') > -1 ? v-1 : v;
    }

    if((typeof Prototype=='undefined') ||
       (typeof Element == 'undefined') ||
       (typeof Element.Methods=='undefined') ||
       (convertVersionString(Prototype.Version) <
        convertVersionString(Scriptaculous.REQUIRED_PROTOTYPE)))
       throw("script.aculo.us requires the Prototype JavaScript framework >= " +
        Scriptaculous.REQUIRED_PROTOTYPE);

    var js = /scriptaculous\.js(\?.*)?$/;
    $$('head script[src]').findAll(function(s) {
      return s.src.match(js);
    }).each(function(s) {
      var path = s.src.replace(js, ''),
      includes = s.src.match(/\?.*load=([a-z,]*)/);
      (includes ? includes[1] : 'builder,effects,dragdrop,controls,slider,sound').split(',').each(
       function(include) { Scriptaculous.require(path+include+'.js') });
    });*/
  }
};

Scriptaculous.load();

//script.aculo.us builder.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

//Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//
//script.aculo.us is freely distributable under the terms of an MIT-style license.
//For details, see the script.aculo.us web site: http://script.aculo.us/

var Builder = {
NODEMAP: {
 AREA: 'map',
 CAPTION: 'table',
 COL: 'table',
 COLGROUP: 'table',
 LEGEND: 'fieldset',
 OPTGROUP: 'select',
 OPTION: 'select',
 PARAM: 'object',
 TBODY: 'table',
 TD: 'table',
 TFOOT: 'table',
 TH: 'table',
 THEAD: 'table',
 TR: 'table'
},
// note: For Firefox < 1.5, OPTION and OPTGROUP tags are currently broken,
//       due to a Firefox bug
node: function(elementName) {
 elementName = elementName.toUpperCase();

 // try innerHTML approach
 var parentTag = this.NODEMAP[elementName] || 'div';
 var parentElement = document.createElement(parentTag);
 try { // prevent IE "feature": http://dev.rubyonrails.org/ticket/2707
   parentElement.innerHTML = "<" + elementName + "></" + elementName + ">";
 } catch(e) {}
 var element = parentElement.firstChild || null;

 // see if browser added wrapping tags
 if(element && (element.tagName.toUpperCase() != elementName))
   element = element.getElementsByTagName(elementName)[0];

 // fallback to createElement approach
 if(!element) element = document.createElement(elementName);

 // abort if nothing could be created
 if(!element) return;

 // attributes (or text)
 if(arguments[1])
   if(this._isStringOrNumber(arguments[1]) ||
     (arguments[1] instanceof Array) ||
     arguments[1].tagName) {
       this._children(element, arguments[1]);
     } else {
       var attrs = this._attributes(arguments[1]);
       if(attrs.length) {
         try { // prevent IE "feature": http://dev.rubyonrails.org/ticket/2707
           parentElement.innerHTML = "<" +elementName + " " +
             attrs + "></" + elementName + ">";
         } catch(e) {}
         element = parentElement.firstChild || null;
         // workaround firefox 1.0.X bug
         if(!element) {
           element = document.createElement(elementName);
           for(attr in arguments[1])
             element[attr == 'class' ? 'className' : attr] = arguments[1][attr];
         }
         if(element.tagName.toUpperCase() != elementName)
           element = parentElement.getElementsByTagName(elementName)[0];
       }
     }

 // text, or array of children
 if(arguments[2])
   this._children(element, arguments[2]);

  return $(element);
},
_text: function(text) {
  return document.createTextNode(text);
},

ATTR_MAP: {
 'className': 'class',
 'htmlFor': 'for'
},

_attributes: function(attributes) {
 var attrs = [];
 for(attribute in attributes)
   attrs.push((attribute in this.ATTR_MAP ? this.ATTR_MAP[attribute] : attribute) +
       '="' + attributes[attribute].toString().escapeHTML().gsub(/"/,'&quot;') + '"');
 return attrs.join(" ");
},
_children: function(element, children) {
 if(children.tagName) {
   element.appendChild(children);
   return;
 }
 if(typeof children=='object') { // array can hold nodes and text
   children.flatten().each( function(e) {
     if(typeof e=='object')
       element.appendChild(e);
     else
       if(Builder._isStringOrNumber(e))
         element.appendChild(Builder._text(e));
   });
 } else
   if(Builder._isStringOrNumber(children))
     element.appendChild(Builder._text(children));
},
_isStringOrNumber: function(param) {
 return(typeof param=='string' || typeof param=='number');
},
build: function(html) {
 var element = this.node('div');
 $(element).update(html.strip());
 return element.down();
},
dump: function(scope) {
 if(typeof scope != 'object' && typeof scope != 'function') scope = window; //global scope

 var tags = ("A ABBR ACRONYM ADDRESS APPLET AREA B BASE BASEFONT BDO BIG BLOCKQUOTE BODY " +
   "BR BUTTON CAPTION CENTER CITE CODE COL COLGROUP DD DEL DFN DIR DIV DL DT EM FIELDSET " +
   "FONT FORM FRAME FRAMESET H1 H2 H3 H4 H5 H6 HEAD HR HTML I IFRAME IMG INPUT INS ISINDEX "+
   "KBD LABEL LEGEND LI LINK MAP MENU META NOFRAMES NOSCRIPT OBJECT OL OPTGROUP OPTION P "+
   "PARAM PRE Q S SAMP SCRIPT SELECT SMALL SPAN STRIKE STRONG STYLE SUB SUP TABLE TBODY TD "+
   "TEXTAREA TFOOT TH THEAD TITLE TR TT U UL VAR").split(/\s+/);

 tags.each( function(tag){
   scope[tag] = function() {
     return Builder.node.apply(Builder, [tag].concat($A(arguments)));
   };
 });
}
};

//script.aculo.us effects.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

//Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//Contributors:
//Justin Palmer (http://encytemedia.com/)
//Mark Pilgrim (http://diveintomark.org/)
//Martin Bialasinki
//
//script.aculo.us is freely distributable under the terms of an MIT-style license.
//For details, see the script.aculo.us web site: http://script.aculo.us/

//converts rgb() and #xxx to #xxxxxx format,
//returns self (or first argument) if not convertable
String.prototype.parseColor = function() {
var color = '#';
if (this.slice(0,4) == 'rgb(') {
 var cols = this.slice(4,this.length-1).split(',');
 var i=0; do { color += parseInt(cols[i]).toColorPart() } while (++i<3);
} else {
 if (this.slice(0,1) == '#') {
   if (this.length==4) for(var i=1;i<4;i++) color += (this.charAt(i) + this.charAt(i)).toLowerCase();
   if (this.length==7) color = this.toLowerCase();
 }
}
return (color.length==7 ? color : (arguments[0] || this));
};

/*--------------------------------------------------------------------------*/

Element.collectTextNodes = function(element) {
return $A($(element).childNodes).collect( function(node) {
 return (node.nodeType==3 ? node.nodeValue :
   (node.hasChildNodes() ? Element.collectTextNodes(node) : ''));
}).flatten().join('');
};

Element.collectTextNodesIgnoreClass = function(element, className) {
return $A($(element).childNodes).collect( function(node) {
 return (node.nodeType==3 ? node.nodeValue :
   ((node.hasChildNodes() && !Element.hasClassName(node,className)) ?
     Element.collectTextNodesIgnoreClass(node, className) : ''));
}).flatten().join('');
};

Element.setContentZoom = function(element, percent) {
element = $(element);
element.setStyle({fontSize: (percent/100) + 'em'});
if (Prototype.Browser.WebKit) window.scrollBy(0,0);
return element;
};

Element.getInlineOpacity = function(element){
return $(element).style.opacity || '';
};

Element.forceRerendering = function(element) {
try {
 element = $(element);
 var n = document.createTextNode(' ');
 element.appendChild(n);
 element.removeChild(n);
} catch(e) { }
};

/*--------------------------------------------------------------------------*/

var Effect = {
_elementDoesNotExistError: {
 name: 'ElementDoesNotExistError',
 message: 'The specified DOM element does not exist, but is required for this effect to operate'
},
Transitions: {
 linear: Prototype.K,
 sinoidal: function(pos) {
   return (-Math.cos(pos*Math.PI)/2) + .5;
 },
 reverse: function(pos) {
   return 1-pos;
 },
 flicker: function(pos) {
   var pos = ((-Math.cos(pos*Math.PI)/4) + .75) + Math.random()/4;
   return pos > 1 ? 1 : pos;
 },
 wobble: function(pos) {
   return (-Math.cos(pos*Math.PI*(9*pos))/2) + .5;
 },
 pulse: function(pos, pulses) {
   return (-Math.cos((pos*((pulses||5)-.5)*2)*Math.PI)/2) + .5;
 },
 spring: function(pos) {
   return 1 - (Math.cos(pos * 4.5 * Math.PI) * Math.exp(-pos * 6));
 },
 none: function(pos) {
   return 0;
 },
 full: function(pos) {
   return 1;
 }
},
DefaultOptions: {
 duration:   1.0,   // seconds
 fps:        100,   // 100= assume 66fps max.
 sync:       false, // true for combining
 from:       0.0,
 to:         1.0,
 delay:      0.0,
 queue:      'parallel'
},
tagifyText: function(element) {
 var tagifyStyle = 'position:relative';
 if (Prototype.Browser.IE) tagifyStyle += ';zoom:1';

 element = $(element);
 $A(element.childNodes).each( function(child) {
   if (child.nodeType==3) {
     child.nodeValue.toArray().each( function(character) {
       element.insertBefore(
         new Element('span', {style: tagifyStyle}).update(
           character == ' ' ? String.fromCharCode(160) : character),
           child);
     });
     Element.remove(child);
   }
 });
},
multiple: function(element, effect) {
 var elements;
 if (((typeof element == 'object') ||
     Object.isFunction(element)) &&
    (element.length))
   elements = element;
 else
   elements = $(element).childNodes;

 var options = Object.extend({
   speed: 0.1,
   delay: 0.0
 }, arguments[2] || { });
 var masterDelay = options.delay;

 $A(elements).each( function(element, index) {
   new effect(element, Object.extend(options, { delay: index * options.speed + masterDelay }));
 });
},
PAIRS: {
 'slide':  ['SlideDown','SlideUp'],
 'blind':  ['BlindDown','BlindUp'],
 'appear': ['Appear','Fade']
},
toggle: function(element, effect) {
 element = $(element);
 effect = (effect || 'appear').toLowerCase();
 var options = Object.extend({
   queue: { position:'end', scope:(element.id || 'global'), limit: 1 }
 }, arguments[2] || { });
 Effect[element.visible() ?
   Effect.PAIRS[effect][1] : Effect.PAIRS[effect][0]](element, options);
}
};

Effect.DefaultOptions.transition = Effect.Transitions.sinoidal;

/* ------------- core effects ------------- */

Effect.ScopedQueue = Class.create(Enumerable, {
initialize: function() {
 this.effects  = [];
 this.interval = null;
},
_each: function(iterator) {
 this.effects._each(iterator);
},
add: function(effect) {
 var timestamp = new Date().getTime();

 var position = Object.isString(effect.options.queue) ?
   effect.options.queue : effect.options.queue.position;

 switch(position) {
   case 'front':
     // move unstarted effects after this effect
     this.effects.findAll(function(e){ return e.state=='idle' }).each( function(e) {
         e.startOn  += effect.finishOn;
         e.finishOn += effect.finishOn;
       });
     break;
   case 'with-last':
     timestamp = this.effects.pluck('startOn').max() || timestamp;
     break;
   case 'end':
     // start effect after last queued effect has finished
     timestamp = this.effects.pluck('finishOn').max() || timestamp;
     break;
 }

 effect.startOn  += timestamp;
 effect.finishOn += timestamp;

 if (!effect.options.queue.limit || (this.effects.length < effect.options.queue.limit))
   this.effects.push(effect);

 if (!this.interval)
   this.interval = setInterval(this.loop.bind(this), 15);
},
remove: function(effect) {
 this.effects = this.effects.reject(function(e) { return e==effect });
 if (this.effects.length == 0) {
   clearInterval(this.interval);
   this.interval = null;
 }
},
loop: function() {
 var timePos = new Date().getTime();
 for(var i=0, len=this.effects.length;i<len;i++)
   this.effects[i] && this.effects[i].loop(timePos);
}
});

Effect.Queues = {
instances: $H(),
get: function(queueName) {
 if (!Object.isString(queueName)) return queueName;

 return this.instances.get(queueName) ||
   this.instances.set(queueName, new Effect.ScopedQueue());
}
};
Effect.Queue = Effect.Queues.get('global');

Effect.Base = Class.create({
position: null,
start: function(options) {
 function codeForEvent(options,eventName){
   return (
     (options[eventName+'Internal'] ? 'this.options.'+eventName+'Internal(this);' : '') +
     (options[eventName] ? 'this.options.'+eventName+'(this);' : '')
   );
 }
 if (options && options.transition === false) options.transition = Effect.Transitions.linear;
 this.options      = Object.extend(Object.extend({ },Effect.DefaultOptions), options || { });
 this.currentFrame = 0;
 this.state        = 'idle';
 this.startOn      = this.options.delay*1000;
 this.finishOn     = this.startOn+(this.options.duration*1000);
 this.fromToDelta  = this.options.to-this.options.from;
 this.totalTime    = this.finishOn-this.startOn;
 this.totalFrames  = this.options.fps*this.options.duration;

 this.render = (function() {
   function dispatch(effect, eventName) {
     if (effect.options[eventName + 'Internal'])
       effect.options[eventName + 'Internal'](effect);
     if (effect.options[eventName])
       effect.options[eventName](effect);
   }

   return function(pos) {
     if (this.state === "idle") {
       this.state = "running";
       dispatch(this, 'beforeSetup');
       if (this.setup) this.setup();
       dispatch(this, 'afterSetup');
     }
     if (this.state === "running") {
       pos = (this.options.transition(pos) * this.fromToDelta) + this.options.from;
       this.position = pos;
       dispatch(this, 'beforeUpdate');
       if (this.update) this.update(pos);
       dispatch(this, 'afterUpdate');
     }
   };
 })();

 this.event('beforeStart');
 if (!this.options.sync)
   Effect.Queues.get(Object.isString(this.options.queue) ?
     'global' : this.options.queue.scope).add(this);
},
loop: function(timePos) {
 if (timePos >= this.startOn) {
   if (timePos >= this.finishOn) {
     this.render(1.0);
     this.cancel();
     this.event('beforeFinish');
     if (this.finish) this.finish();
     this.event('afterFinish');
     return;
   }
   var pos   = (timePos - this.startOn) / this.totalTime,
       frame = (pos * this.totalFrames).round();
   if (frame > this.currentFrame) {
     this.render(pos);
     this.currentFrame = frame;
   }
 }
},
cancel: function() {
 if (!this.options.sync)
   Effect.Queues.get(Object.isString(this.options.queue) ?
     'global' : this.options.queue.scope).remove(this);
 this.state = 'finished';
},
event: function(eventName) {
 if (this.options[eventName + 'Internal']) this.options[eventName + 'Internal'](this);
 if (this.options[eventName]) this.options[eventName](this);
},
inspect: function() {
 var data = $H();
 for(property in this)
   if (!Object.isFunction(this[property])) data.set(property, this[property]);
 return '#<Effect:' + data.inspect() + ',options:' + $H(this.options).inspect() + '>';
}
});

Effect.Parallel = Class.create(Effect.Base, {
initialize: function(effects) {
 this.effects = effects || [];
 this.start(arguments[1]);
},
update: function(position) {
 this.effects.invoke('render', position);
},
finish: function(position) {
 this.effects.each( function(effect) {
   effect.render(1.0);
   effect.cancel();
   effect.event('beforeFinish');
   if (effect.finish) effect.finish(position);
   effect.event('afterFinish');
 });
}
});

Effect.Tween = Class.create(Effect.Base, {
initialize: function(object, from, to) {
 object = Object.isString(object) ? $(object) : object;
 var args = $A(arguments), method = args.last(),
   options = args.length == 5 ? args[3] : null;
 this.method = Object.isFunction(method) ? method.bind(object) :
   Object.isFunction(object[method]) ? object[method].bind(object) :
   function(value) { object[method] = value };
 this.start(Object.extend({ from: from, to: to }, options || { }));
},
update: function(position) {
 this.method(position);
}
});

Effect.Event = Class.create(Effect.Base, {
initialize: function() {
 this.start(Object.extend({ duration: 0 }, arguments[0] || { }));
},
update: Prototype.emptyFunction
});

Effect.Opacity = Class.create(Effect.Base, {
initialize: function(element) {
 this.element = $(element);
 if (!this.element) throw(Effect._elementDoesNotExistError);
 // make this work on IE on elements without 'layout'
 if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
   this.element.setStyle({zoom: 1});
 var options = Object.extend({
   from: this.element.getOpacity() || 0.0,
   to:   1.0
 }, arguments[1] || { });
 this.start(options);
},
update: function(position) {
 this.element.setOpacity(position);
}
});

Effect.Move = Class.create(Effect.Base, {
initialize: function(element) {
 this.element = $(element);
 if (!this.element) throw(Effect._elementDoesNotExistError);
 var options = Object.extend({
   x:    0,
   y:    0,
   mode: 'relative'
 }, arguments[1] || { });
 this.start(options);
},
setup: function() {
 this.element.makePositioned();
 this.originalLeft = parseFloat(this.element.getStyle('left') || '0');
 this.originalTop  = parseFloat(this.element.getStyle('top')  || '0');
 if (this.options.mode == 'absolute') {
   this.options.x = this.options.x - this.originalLeft;
   this.options.y = this.options.y - this.originalTop;
 }
},
update: function(position) {
 this.element.setStyle({
   left: (this.options.x  * position + this.originalLeft).round() + 'px',
   top:  (this.options.y  * position + this.originalTop).round()  + 'px'
 });
}
});

//for backwards compatibility
Effect.MoveBy = function(element, toTop, toLeft) {
return new Effect.Move(element,
 Object.extend({ x: toLeft, y: toTop }, arguments[3] || { }));
};

Effect.Scale = Class.create(Effect.Base, {
initialize: function(element, percent) {
 this.element = $(element);
 if (!this.element) throw(Effect._elementDoesNotExistError);
 var options = Object.extend({
   scaleX: true,
   scaleY: true,
   scaleContent: true,
   scaleFromCenter: false,
   scaleMode: 'box',        // 'box' or 'contents' or { } with provided values
   scaleFrom: 100.0,
   scaleTo:   percent
 }, arguments[2] || { });
 this.start(options);
},
setup: function() {
 this.restoreAfterFinish = this.options.restoreAfterFinish || false;
 this.elementPositioning = this.element.getStyle('position');

 this.originalStyle = { };
 ['top','left','width','height','fontSize'].each( function(k) {
   this.originalStyle[k] = this.element.style[k];
 }.bind(this));

 this.originalTop  = this.element.offsetTop;
 this.originalLeft = this.element.offsetLeft;

 var fontSize = this.element.getStyle('font-size') || '100%';
 ['em','px','%','pt'].each( function(fontSizeType) {
   if (fontSize.indexOf(fontSizeType)>0) {
     this.fontSize     = parseFloat(fontSize);
     this.fontSizeType = fontSizeType;
   }
 }.bind(this));

 this.factor = (this.options.scaleTo - this.options.scaleFrom)/100;

 this.dims = null;
 if (this.options.scaleMode=='box')
   this.dims = [this.element.offsetHeight, this.element.offsetWidth];
 if (/^content/.test(this.options.scaleMode))
   this.dims = [this.element.scrollHeight, this.element.scrollWidth];
 if (!this.dims)
   this.dims = [this.options.scaleMode.originalHeight,
                this.options.scaleMode.originalWidth];
},
update: function(position) {
 var currentScale = (this.options.scaleFrom/100.0) + (this.factor * position);
 if (this.options.scaleContent && this.fontSize)
   this.element.setStyle({fontSize: this.fontSize * currentScale + this.fontSizeType });
 this.setDimensions(this.dims[0] * currentScale, this.dims[1] * currentScale);
},
finish: function(position) {
 if (this.restoreAfterFinish) this.element.setStyle(this.originalStyle);
},
setDimensions: function(height, width) {
 var d = { };
 if (this.options.scaleX) d.width = width.round() + 'px';
 if (this.options.scaleY) d.height = height.round() + 'px';
 if (this.options.scaleFromCenter) {
   var topd  = (height - this.dims[0])/2;
   var leftd = (width  - this.dims[1])/2;
   if (this.elementPositioning == 'absolute') {
     if (this.options.scaleY) d.top = this.originalTop-topd + 'px';
     if (this.options.scaleX) d.left = this.originalLeft-leftd + 'px';
   } else {
     if (this.options.scaleY) d.top = -topd + 'px';
     if (this.options.scaleX) d.left = -leftd + 'px';
   }
 }
 this.element.setStyle(d);
}
});

Effect.Highlight = Class.create(Effect.Base, {
initialize: function(element) {
 this.element = $(element);
 if (!this.element) throw(Effect._elementDoesNotExistError);
 var options = Object.extend({ startcolor: '#ffff99' }, arguments[1] || { });
 this.start(options);
},
setup: function() {
 // Prevent executing on elements not in the layout flow
 if (this.element.getStyle('display')=='none') { this.cancel(); return; }
 // Disable background image during the effect
 this.oldStyle = { };
 if (!this.options.keepBackgroundImage) {
   this.oldStyle.backgroundImage = this.element.getStyle('background-image');
   this.element.setStyle({backgroundImage: 'none'});
 }
 if (!this.options.endcolor)
   this.options.endcolor = this.element.getStyle('background-color').parseColor('#ffffff');
 if (!this.options.restorecolor)
   this.options.restorecolor = this.element.getStyle('background-color');
 // init color calculations
 this._base  = $R(0,2).map(function(i){ return parseInt(this.options.startcolor.slice(i*2+1,i*2+3),16) }.bind(this));
 this._delta = $R(0,2).map(function(i){ return parseInt(this.options.endcolor.slice(i*2+1,i*2+3),16)-this._base[i] }.bind(this));
},
update: function(position) {
 this.element.setStyle({backgroundColor: $R(0,2).inject('#',function(m,v,i){
   return m+((this._base[i]+(this._delta[i]*position)).round().toColorPart()); }.bind(this)) });
},
finish: function() {
 this.element.setStyle(Object.extend(this.oldStyle, {
   backgroundColor: this.options.restorecolor
 }));
}
});

Effect.ScrollTo = function(element) {
var options = arguments[1] || { },
scrollOffsets = document.viewport.getScrollOffsets(),
elementOffsets = $(element).cumulativeOffset();

if (options.offset) elementOffsets[1] += options.offset;

return new Effect.Tween(null,
 scrollOffsets.top,
 elementOffsets[1],
 options,
 function(p){ scrollTo(scrollOffsets.left, p.round()); }
);
};

/* ------------- combination effects ------------- */

Effect.Fade = function(element) {
element = $(element);
var oldOpacity = element.getInlineOpacity();
var options = Object.extend({
 from: element.getOpacity() || 1.0,
 to:   0.0,
 afterFinishInternal: function(effect) {
   if (effect.options.to!=0) return;
   effect.element.hide().setStyle({opacity: oldOpacity});
 }
}, arguments[1] || { });
return new Effect.Opacity(element,options);
};

Effect.Appear = function(element) {
element = $(element);
var options = Object.extend({
from: (element.getStyle('display') == 'none' ? 0.0 : element.getOpacity() || 0.0),
to:   1.0,
// force Safari to render floated elements properly
afterFinishInternal: function(effect) {
 effect.element.forceRerendering();
},
beforeSetup: function(effect) {
 effect.element.setOpacity(effect.options.from).show();
}}, arguments[1] || { });
return new Effect.Opacity(element,options);
};

Effect.Puff = function(element) {
element = $(element);
var oldStyle = {
 opacity: element.getInlineOpacity(),
 position: element.getStyle('position'),
 top:  element.style.top,
 left: element.style.left,
 width: element.style.width,
 height: element.style.height
};
return new Effect.Parallel(
[ new Effect.Scale(element, 200,
   { sync: true, scaleFromCenter: true, scaleContent: true, restoreAfterFinish: true }),
  new Effect.Opacity(element, { sync: true, to: 0.0 } ) ],
  Object.extend({ duration: 1.0,
   beforeSetupInternal: function(effect) {
     Position.absolutize(effect.effects[0].element);
   },
   afterFinishInternal: function(effect) {
      effect.effects[0].element.hide().setStyle(oldStyle); }
  }, arguments[1] || { })
);
};

Effect.BlindUp = function(element) {
element = $(element);
element.makeClipping();
return new Effect.Scale(element, 0,
 Object.extend({ scaleContent: false,
   scaleX: false,
   restoreAfterFinish: true,
   afterFinishInternal: function(effect) {
     effect.element.hide().undoClipping();
   }
 }, arguments[1] || { })
);
};

Effect.BlindDown = function(element) {
element = $(element);
var elementDimensions = element.getDimensions();
return new Effect.Scale(element, 100, Object.extend({
 scaleContent: false,
 scaleX: false,
 scaleFrom: 0,
 scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
 restoreAfterFinish: true,
 afterSetup: function(effect) {
   effect.element.makeClipping().setStyle({height: '0px'}).show();
 },
 afterFinishInternal: function(effect) {
   effect.element.undoClipping();
 }
}, arguments[1] || { }));
};

Effect.SwitchOff = function(element) {
element = $(element);
var oldOpacity = element.getInlineOpacity();
return new Effect.Appear(element, Object.extend({
 duration: 0.4,
 from: 0,
 transition: Effect.Transitions.flicker,
 afterFinishInternal: function(effect) {
   new Effect.Scale(effect.element, 1, {
     duration: 0.3, scaleFromCenter: true,
     scaleX: false, scaleContent: false, restoreAfterFinish: true,
     beforeSetup: function(effect) {
       effect.element.makePositioned().makeClipping();
     },
     afterFinishInternal: function(effect) {
       effect.element.hide().undoClipping().undoPositioned().setStyle({opacity: oldOpacity});
     }
   });
 }
}, arguments[1] || { }));
};

Effect.DropOut = function(element) {
element = $(element);
var oldStyle = {
 top: element.getStyle('top'),
 left: element.getStyle('left'),
 opacity: element.getInlineOpacity() };
return new Effect.Parallel(
 [ new Effect.Move(element, {x: 0, y: 100, sync: true }),
   new Effect.Opacity(element, { sync: true, to: 0.0 }) ],
 Object.extend(
   { duration: 0.5,
     beforeSetup: function(effect) {
       effect.effects[0].element.makePositioned();
     },
     afterFinishInternal: function(effect) {
       effect.effects[0].element.hide().undoPositioned().setStyle(oldStyle);
     }
   }, arguments[1] || { }));
};

Effect.Shake = function(element) {
element = $(element);
var options = Object.extend({
 distance: 20,
 duration: 0.5
}, arguments[1] || {});
var distance = parseFloat(options.distance);
var split = parseFloat(options.duration) / 10.0;
var oldStyle = {
 top: element.getStyle('top'),
 left: element.getStyle('left') };
 return new Effect.Move(element,
   { x:  distance, y: 0, duration: split, afterFinishInternal: function(effect) {
 new Effect.Move(effect.element,
   { x: -distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
 new Effect.Move(effect.element,
   { x:  distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
 new Effect.Move(effect.element,
   { x: -distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
 new Effect.Move(effect.element,
   { x:  distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
 new Effect.Move(effect.element,
   { x: -distance, y: 0, duration: split, afterFinishInternal: function(effect) {
     effect.element.undoPositioned().setStyle(oldStyle);
}}); }}); }}); }}); }}); }});
};

Effect.SlideDown = function(element) {
element = $(element).cleanWhitespace();
// SlideDown need to have the content of the element wrapped in a container element with fixed height!
var oldInnerBottom = element.down().getStyle('bottom');
var elementDimensions = element.getDimensions();
return new Effect.Scale(element, 100, Object.extend({
 scaleContent: false,
 scaleX: false,
 scaleFrom: window.opera ? 0 : 1,
 scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
 restoreAfterFinish: true,
 afterSetup: function(effect) {
   effect.element.makePositioned();
   effect.element.down().makePositioned();
   if (window.opera) effect.element.setStyle({top: ''});
   effect.element.makeClipping().setStyle({height: '0px'}).show();
 },
 afterUpdateInternal: function(effect) {
   effect.element.down().setStyle({bottom:
     (effect.dims[0] - effect.element.clientHeight) + 'px' });
 },
 afterFinishInternal: function(effect) {
   effect.element.undoClipping().undoPositioned();
   effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom}); }
 }, arguments[1] || { })
);
};

Effect.SlideUp = function(element) {
element = $(element).cleanWhitespace();
var oldInnerBottom = element.down().getStyle('bottom');
var elementDimensions = element.getDimensions();
return new Effect.Scale(element, window.opera ? 0 : 1,
Object.extend({ scaleContent: false,
 scaleX: false,
 scaleMode: 'box',
 scaleFrom: 100,
 scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
 restoreAfterFinish: true,
 afterSetup: function(effect) {
   effect.element.makePositioned();
   effect.element.down().makePositioned();
   if (window.opera) effect.element.setStyle({top: ''});
   effect.element.makeClipping().show();
 },
 afterUpdateInternal: function(effect) {
   effect.element.down().setStyle({bottom:
     (effect.dims[0] - effect.element.clientHeight) + 'px' });
 },
 afterFinishInternal: function(effect) {
   effect.element.hide().undoClipping().undoPositioned();
   effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom});
 }
}, arguments[1] || { })
);
};

//Bug in opera makes the TD containing this element expand for a instance after finish
Effect.Squish = function(element) {
return new Effect.Scale(element, window.opera ? 1 : 0, {
 restoreAfterFinish: true,
 beforeSetup: function(effect) {
   effect.element.makeClipping();
 },
 afterFinishInternal: function(effect) {
   effect.element.hide().undoClipping();
 }
});
};

Effect.Grow = function(element) {
element = $(element);
var options = Object.extend({
 direction: 'center',
 moveTransition: Effect.Transitions.sinoidal,
 scaleTransition: Effect.Transitions.sinoidal,
 opacityTransition: Effect.Transitions.full
}, arguments[1] || { });
var oldStyle = {
 top: element.style.top,
 left: element.style.left,
 height: element.style.height,
 width: element.style.width,
 opacity: element.getInlineOpacity() };

var dims = element.getDimensions();
var initialMoveX, initialMoveY;
var moveX, moveY;

switch (options.direction) {
 case 'top-left':
   initialMoveX = initialMoveY = moveX = moveY = 0;
   break;
 case 'top-right':
   initialMoveX = dims.width;
   initialMoveY = moveY = 0;
   moveX = -dims.width;
   break;
 case 'bottom-left':
   initialMoveX = moveX = 0;
   initialMoveY = dims.height;
   moveY = -dims.height;
   break;
 case 'bottom-right':
   initialMoveX = dims.width;
   initialMoveY = dims.height;
   moveX = -dims.width;
   moveY = -dims.height;
   break;
 case 'center':
   initialMoveX = dims.width / 2;
   initialMoveY = dims.height / 2;
   moveX = -dims.width / 2;
   moveY = -dims.height / 2;
   break;
}

return new Effect.Move(element, {
 x: initialMoveX,
 y: initialMoveY,
 duration: 0.01,
 beforeSetup: function(effect) {
   effect.element.hide().makeClipping().makePositioned();
 },
 afterFinishInternal: function(effect) {
   new Effect.Parallel(
     [ new Effect.Opacity(effect.element, { sync: true, to: 1.0, from: 0.0, transition: options.opacityTransition }),
       new Effect.Move(effect.element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition }),
       new Effect.Scale(effect.element, 100, {
         scaleMode: { originalHeight: dims.height, originalWidth: dims.width },
         sync: true, scaleFrom: window.opera ? 1 : 0, transition: options.scaleTransition, restoreAfterFinish: true})
     ], Object.extend({
          beforeSetup: function(effect) {
            effect.effects[0].element.setStyle({height: '0px'}).show();
          },
          afterFinishInternal: function(effect) {
            effect.effects[0].element.undoClipping().undoPositioned().setStyle(oldStyle);
          }
        }, options)
   );
 }
});
};

Effect.Shrink = function(element) {
element = $(element);
var options = Object.extend({
 direction: 'center',
 moveTransition: Effect.Transitions.sinoidal,
 scaleTransition: Effect.Transitions.sinoidal,
 opacityTransition: Effect.Transitions.none
}, arguments[1] || { });
var oldStyle = {
 top: element.style.top,
 left: element.style.left,
 height: element.style.height,
 width: element.style.width,
 opacity: element.getInlineOpacity() };

var dims = element.getDimensions();
var moveX, moveY;

switch (options.direction) {
 case 'top-left':
   moveX = moveY = 0;
   break;
 case 'top-right':
   moveX = dims.width;
   moveY = 0;
   break;
 case 'bottom-left':
   moveX = 0;
   moveY = dims.height;
   break;
 case 'bottom-right':
   moveX = dims.width;
   moveY = dims.height;
   break;
 case 'center':
   moveX = dims.width / 2;
   moveY = dims.height / 2;
   break;
}

return new Effect.Parallel(
 [ new Effect.Opacity(element, { sync: true, to: 0.0, from: 1.0, transition: options.opacityTransition }),
   new Effect.Scale(element, window.opera ? 1 : 0, { sync: true, transition: options.scaleTransition, restoreAfterFinish: true}),
   new Effect.Move(element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition })
 ], Object.extend({
      beforeStartInternal: function(effect) {
        effect.effects[0].element.makePositioned().makeClipping();
      },
      afterFinishInternal: function(effect) {
        effect.effects[0].element.hide().undoClipping().undoPositioned().setStyle(oldStyle); }
    }, options)
);
};

Effect.Pulsate = function(element) {
element = $(element);
var options    = arguments[1] || { },
 oldOpacity = element.getInlineOpacity(),
 transition = options.transition || Effect.Transitions.linear,
 reverser   = function(pos){
   return 1 - transition((-Math.cos((pos*(options.pulses||5)*2)*Math.PI)/2) + .5);
 };

return new Effect.Opacity(element,
 Object.extend(Object.extend({  duration: 2.0, from: 0,
   afterFinishInternal: function(effect) { effect.element.setStyle({opacity: oldOpacity}); }
 }, options), {transition: reverser}));
};

Effect.Fold = function(element) {
element = $(element);
var oldStyle = {
 top: element.style.top,
 left: element.style.left,
 width: element.style.width,
 height: element.style.height };
element.makeClipping();
return new Effect.Scale(element, 5, Object.extend({
 scaleContent: false,
 scaleX: false,
 afterFinishInternal: function(effect) {
 new Effect.Scale(element, 1, {
   scaleContent: false,
   scaleY: false,
   afterFinishInternal: function(effect) {
     effect.element.hide().undoClipping().setStyle(oldStyle);
   } });
}}, arguments[1] || { }));
};

Effect.Morph = Class.create(Effect.Base, {
initialize: function(element) {
 this.element = $(element);
 if (!this.element) throw(Effect._elementDoesNotExistError);
 var options = Object.extend({
   style: { }
 }, arguments[1] || { });

 if (!Object.isString(options.style)) this.style = $H(options.style);
 else {
   if (options.style.include(':'))
     this.style = options.style.parseStyle();
   else {
     this.element.addClassName(options.style);
     this.style = $H(this.element.getStyles());
     this.element.removeClassName(options.style);
     var css = this.element.getStyles();
     this.style = this.style.reject(function(style) {
       return style.value == css[style.key];
     });
     options.afterFinishInternal = function(effect) {
       effect.element.addClassName(effect.options.style);
       effect.transforms.each(function(transform) {
         effect.element.style[transform.style] = '';
       });
     };
   }
 }
 this.start(options);
},

setup: function(){
 function parseColor(color){
   if (!color || ['rgba(0, 0, 0, 0)','transparent'].include(color)) color = '#ffffff';
   color = color.parseColor();
   return $R(0,2).map(function(i){
     return parseInt( color.slice(i*2+1,i*2+3), 16 );
   });
 }
 this.transforms = this.style.map(function(pair){
   var property = pair[0], value = pair[1], unit = null;

   if (value.parseColor('#zzzzzz') != '#zzzzzz') {
     value = value.parseColor();
     unit  = 'color';
   } else if (property == 'opacity') {
     value = parseFloat(value);
     if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
       this.element.setStyle({zoom: 1});
   } else if (Element.CSS_LENGTH.test(value)) {
       var components = value.match(/^([\+\-]?[0-9\.]+)(.*)$/);
       value = parseFloat(components[1]);
       unit = (components.length == 3) ? components[2] : null;
   }

   var originalValue = this.element.getStyle(property);
   return {
     style: property.camelize(),
     originalValue: unit=='color' ? parseColor(originalValue) : parseFloat(originalValue || 0),
     targetValue: unit=='color' ? parseColor(value) : value,
     unit: unit
   };
 }.bind(this)).reject(function(transform){
   return (
     (transform.originalValue == transform.targetValue) ||
     (
       transform.unit != 'color' &&
       (isNaN(transform.originalValue) || isNaN(transform.targetValue))
     )
   );
 });
},
update: function(position) {
 var style = { }, transform, i = this.transforms.length;
 while(i--)
   style[(transform = this.transforms[i]).style] =
     transform.unit=='color' ? '#'+
       (Math.round(transform.originalValue[0]+
         (transform.targetValue[0]-transform.originalValue[0])*position)).toColorPart() +
       (Math.round(transform.originalValue[1]+
         (transform.targetValue[1]-transform.originalValue[1])*position)).toColorPart() +
       (Math.round(transform.originalValue[2]+
         (transform.targetValue[2]-transform.originalValue[2])*position)).toColorPart() :
     (transform.originalValue +
       (transform.targetValue - transform.originalValue) * position).toFixed(3) +
         (transform.unit === null ? '' : transform.unit);
 this.element.setStyle(style, true);
}
});

Effect.Transform = Class.create({
initialize: function(tracks){
 this.tracks  = [];
 this.options = arguments[1] || { };
 this.addTracks(tracks);
},
addTracks: function(tracks){
 tracks.each(function(track){
   track = $H(track);
   var data = track.values().first();
   this.tracks.push($H({
     ids:     track.keys().first(),
     effect:  Effect.Morph,
     options: { style: data }
   }));
 }.bind(this));
 return this;
},
play: function(){
 return new Effect.Parallel(
   this.tracks.map(function(track){
     var ids = track.get('ids'), effect = track.get('effect'), options = track.get('options');
     var elements = [$(ids) || $$(ids)].flatten();
     return elements.map(function(e){ return new effect(e, Object.extend({ sync:true }, options)) });
   }).flatten(),
   this.options
 );
}
});

Element.CSS_PROPERTIES = $w(
'backgroundColor backgroundPosition borderBottomColor borderBottomStyle ' +
'borderBottomWidth borderLeftColor borderLeftStyle borderLeftWidth ' +
'borderRightColor borderRightStyle borderRightWidth borderSpacing ' +
'borderTopColor borderTopStyle borderTopWidth bottom clip color ' +
'fontSize fontWeight height left letterSpacing lineHeight ' +
'marginBottom marginLeft marginRight marginTop markerOffset maxHeight '+
'maxWidth minHeight minWidth opacity outlineColor outlineOffset ' +
'outlineWidth paddingBottom paddingLeft paddingRight paddingTop ' +
'right textIndent top width wordSpacing zIndex');

Element.CSS_LENGTH = /^(([\+\-]?[0-9\.]+)(em|ex|px|in|cm|mm|pt|pc|\%))|0$/;

String.__parseStyleElement = document.createElement('div');
String.prototype.parseStyle = function(){
var style, styleRules = $H();
if (Prototype.Browser.WebKit)
 style = new Element('div',{style:this}).style;
else {
 String.__parseStyleElement.innerHTML = '<div style="' + this + '"></div>';
 style = String.__parseStyleElement.childNodes[0].style;
}

Element.CSS_PROPERTIES.each(function(property){
 if (style[property]) styleRules.set(property, style[property]);
});

if (Prototype.Browser.IE && this.include('opacity'))
 styleRules.set('opacity', this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1]);

return styleRules;
};

if (document.defaultView && document.defaultView.getComputedStyle) {
Element.getStyles = function(element) {
 var css = document.defaultView.getComputedStyle($(element), null);
 return Element.CSS_PROPERTIES.inject({ }, function(styles, property) {
   styles[property] = css[property];
   return styles;
 });
};
} else {
Element.getStyles = function(element) {
 element = $(element);
 var css = element.currentStyle, styles;
 styles = Element.CSS_PROPERTIES.inject({ }, function(results, property) {
   results[property] = css[property];
   return results;
 });
 if (!styles.opacity) styles.opacity = element.getOpacity();
 return styles;
};
}

Effect.Methods = {
morph: function(element, style) {
 element = $(element);
 new Effect.Morph(element, Object.extend({ style: style }, arguments[2] || { }));
 return element;
},
visualEffect: function(element, effect, options) {
 element = $(element);
 var s = effect.dasherize().camelize(), klass = s.charAt(0).toUpperCase() + s.substring(1);
 new Effect[klass](element, options);
 return element;
},
highlight: function(element, options) {
 element = $(element);
 new Effect.Highlight(element, options);
 return element;
}
};

$w('fade appear grow shrink fold blindUp blindDown slideUp slideDown '+
'pulsate shake puff squish switchOff dropOut').each(
function(effect) {
 Effect.Methods[effect] = function(element, options){
   element = $(element);
   Effect[effect.charAt(0).toUpperCase() + effect.substring(1)](element, options);
   return element;
 };
}
);

$w('getInlineOpacity forceRerendering setContentZoom collectTextNodes collectTextNodesIgnoreClass getStyles').each(
function(f) { Effect.Methods[f] = Element[f]; }
);

Element.addMethods(Effect.Methods);

//script.aculo.us dragdrop.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

//Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//        (c) 2005-2008 Sammi Williams (http://www.oriontransfer.co.nz, sammi@oriontransfer.co.nz)
//
//script.aculo.us is freely distributable under the terms of an MIT-style license.
//For details, see the script.aculo.us web site: http://script.aculo.us/

if(Object.isUndefined(Effect))
throw("dragdrop.js requires including script.aculo.us' effects.js library");

var Droppables = {
drops: [],

remove: function(element) {
 this.drops = this.drops.reject(function(d) { return d.element==$(element) });
},

add: function(element) {
 element = $(element);
 var options = Object.extend({
   greedy:     true,
   hoverclass: null,
   tree:       false
 }, arguments[1] || { });

 // cache containers
 if(options.containment) {
   options._containers = [];
   var containment = options.containment;
   if(Object.isArray(containment)) {
     containment.each( function(c) { options._containers.push($(c)) });
   } else {
     options._containers.push($(containment));
   }
 }

 if(options.accept) options.accept = [options.accept].flatten();

 Element.makePositioned(element); // fix IE
 options.element = element;

 this.drops.push(options);
},

findDeepestChild: function(drops) {
 deepest = drops[0];

 for (i = 1; i < drops.length; ++i)
   if (Element.isParent(drops[i].element, deepest.element))
     deepest = drops[i];

 return deepest;
},

isContained: function(element, drop) {
 var containmentNode;
 if(drop.tree) {
   containmentNode = element.treeNode;
 } else {
   containmentNode = element.parentNode;
 }
 return drop._containers.detect(function(c) { return containmentNode == c });
},

isAffected: function(point, element, drop) {
 return (
   (drop.element!=element) &&
   ((!drop._containers) ||
     this.isContained(element, drop)) &&
   ((!drop.accept) ||
     (Element.classNames(element).detect(
       function(v) { return drop.accept.include(v) } ) )) &&
   Position.within(drop.element, point[0], point[1]) );
},

deactivate: function(drop) {
 if(drop.hoverclass)
   Element.removeClassName(drop.element, drop.hoverclass);
 this.last_active = null;
},

activate: function(drop) {
 if(drop.hoverclass)
   Element.addClassName(drop.element, drop.hoverclass);
 this.last_active = drop;
},

show: function(point, element) {
 if(!this.drops.length) return;
 var drop, affected = [];

 this.drops.each( function(drop) {
   if(Droppables.isAffected(point, element, drop))
     affected.push(drop);
 });

 if(affected.length>0)
   drop = Droppables.findDeepestChild(affected);

 if(this.last_active && this.last_active != drop) this.deactivate(this.last_active);
 if (drop) {
   Position.within(drop.element, point[0], point[1]);
   if(drop.onHover)
     drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element));

   if (drop != this.last_active) Droppables.activate(drop);
 }
},

fire: function(event, element) {
 if(!this.last_active) return;
 Position.prepare();

 if (this.isAffected([Event.pointerX(event), Event.pointerY(event)], element, this.last_active))
   if (this.last_active.onDrop) {
     this.last_active.onDrop(element, this.last_active.element, event);
     return true;
   }
},

reset: function() {
 if(this.last_active)
   this.deactivate(this.last_active);
}
};

var Draggables = {
drags: [],
observers: [],

register: function(draggable) {
 if(this.drags.length == 0) {
   this.eventMouseUp   = this.endDrag.bindAsEventListener(this);
   this.eventMouseMove = this.updateDrag.bindAsEventListener(this);
   this.eventKeypress  = this.keyPress.bindAsEventListener(this);

   Event.observe(document, "mouseup", this.eventMouseUp);
   Event.observe(document, "mousemove", this.eventMouseMove);
   Event.observe(document, "keypress", this.eventKeypress);
 }
 this.drags.push(draggable);
},

unregister: function(draggable) {
 this.drags = this.drags.reject(function(d) { return d==draggable });
 if(this.drags.length == 0) {
   Event.stopObserving(document, "mouseup", this.eventMouseUp);
   Event.stopObserving(document, "mousemove", this.eventMouseMove);
   Event.stopObserving(document, "keypress", this.eventKeypress);
 }
},

activate: function(draggable) {
 if(draggable.options.delay) {
   this._timeout = setTimeout(function() {
     Draggables._timeout = null;
     window.focus();
     Draggables.activeDraggable = draggable;
   }.bind(this), draggable.options.delay);
 } else {
   window.focus(); // allows keypress events if window isn't currently focused, fails for Safari
   this.activeDraggable = draggable;
 }
},

deactivate: function() {
 this.activeDraggable = null;
},

updateDrag: function(event) {
 if(!this.activeDraggable) return;
 var pointer = [Event.pointerX(event), Event.pointerY(event)];
 // Mozilla-based browsers fire successive mousemove events with
 // the same coordinates, prevent needless redrawing (moz bug?)
 if(this._lastPointer && (this._lastPointer.inspect() == pointer.inspect())) return;
 this._lastPointer = pointer;

 this.activeDraggable.updateDrag(event, pointer);
},

endDrag: function(event) {
 if(this._timeout) {
   clearTimeout(this._timeout);
   this._timeout = null;
 }
 if(!this.activeDraggable) return;
 this._lastPointer = null;
 this.activeDraggable.endDrag(event);
 this.activeDraggable = null;
},

keyPress: function(event) {
 if(this.activeDraggable)
   this.activeDraggable.keyPress(event);
},

addObserver: function(observer) {
 this.observers.push(observer);
 this._cacheObserverCallbacks();
},

removeObserver: function(element) {  // element instead of observer fixes mem leaks
 this.observers = this.observers.reject( function(o) { return o.element==element });
 this._cacheObserverCallbacks();
},

notify: function(eventName, draggable, event) {  // 'onStart', 'onEnd', 'onDrag'
 if(this[eventName+'Count'] > 0)
   this.observers.each( function(o) {
     if(o[eventName]) o[eventName](eventName, draggable, event);
   });
 if(draggable.options[eventName]) draggable.options[eventName](draggable, event);
},

_cacheObserverCallbacks: function() {
 ['onStart','onEnd','onDrag'].each( function(eventName) {
   Draggables[eventName+'Count'] = Draggables.observers.select(
     function(o) { return o[eventName]; }
   ).length;
 });
}
};

/*--------------------------------------------------------------------------*/

var Draggable = Class.create({
initialize: function(element) {
 var defaults = {
   handle: false,
   reverteffect: function(element, top_offset, left_offset) {
     var dur = Math.sqrt(Math.abs(top_offset^2)+Math.abs(left_offset^2))*0.02;
     new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur,
       queue: {scope:'_draggable', position:'end'}
     });
   },
   endeffect: function(element) {
     var toOpacity = Object.isNumber(element._opacity) ? element._opacity : 1.0;
     new Effect.Opacity(element, {duration:0.2, from:0.7, to:toOpacity,
       queue: {scope:'_draggable', position:'end'},
       afterFinish: function(){
         Draggable._dragging[element] = false
       }
     });
   },
   zindex: 1000,
   revert: false,
   quiet: false,
   scroll: false,
   scrollSensitivity: 20,
   scrollSpeed: 15,
   snap: false,  // false, or xy or [x,y] or function(x,y){ return [x,y] }
   delay: 0
 };

 if(!arguments[1] || Object.isUndefined(arguments[1].endeffect))
   Object.extend(defaults, {
     starteffect: function(element) {
       element._opacity = Element.getOpacity(element);
       Draggable._dragging[element] = true;
       new Effect.Opacity(element, {duration:0.2, from:element._opacity, to:0.7});
     }
   });

 var options = Object.extend(defaults, arguments[1] || { });

 this.element = $(element);

 if(options.handle && Object.isString(options.handle))
   this.handle = this.element.down('.'+options.handle, 0);

 if(!this.handle) this.handle = $(options.handle);
 if(!this.handle) this.handle = this.element;

 if(options.scroll && !options.scroll.scrollTo && !options.scroll.outerHTML) {
   options.scroll = $(options.scroll);
   this._isScrollChild = Element.childOf(this.element, options.scroll);
 }

 Element.makePositioned(this.element); // fix IE

 this.options  = options;
 this.dragging = false;

 this.eventMouseDown = this.initDrag.bindAsEventListener(this);
 Event.observe(this.handle, "mousedown", this.eventMouseDown);

 Draggables.register(this);
},

destroy: function() {
 Event.stopObserving(this.handle, "mousedown", this.eventMouseDown);
 Draggables.unregister(this);
},

currentDelta: function() {
 return([
   parseInt(Element.getStyle(this.element,'left') || '0'),
   parseInt(Element.getStyle(this.element,'top') || '0')]);
},

initDrag: function(event) {
 if(!Object.isUndefined(Draggable._dragging[this.element]) &&
   Draggable._dragging[this.element]) return;
 if(Event.isLeftClick(event)) {
   // abort on form elements, fixes a Firefox issue
   var src = Event.element(event);
   if((tag_name = src.tagName.toUpperCase()) && (
     tag_name=='INPUT' ||
     tag_name=='SELECT' ||
     tag_name=='OPTION' ||
     tag_name=='BUTTON' ||
     tag_name=='TEXTAREA')) return;

   var pointer = [Event.pointerX(event), Event.pointerY(event)];
   var pos     = Position.cumulativeOffset(this.element);
   this.offset = [0,1].map( function(i) { return (pointer[i] - pos[i]) });

   Draggables.activate(this);
   Event.stop(event);
 }
},

startDrag: function(event) {
 this.dragging = true;
 if(!this.delta)
   this.delta = this.currentDelta();

 if(this.options.zindex) {
   this.originalZ = parseInt(Element.getStyle(this.element,'z-index') || 0);
   this.element.style.zIndex = this.options.zindex;
 }

 if(this.options.ghosting) {
   this._clone = this.element.cloneNode(true);
   this._originallyAbsolute = (this.element.getStyle('position') == 'absolute');
   if (!this._originallyAbsolute)
     Position.absolutize(this.element);
   this.element.parentNode.insertBefore(this._clone, this.element);
 }

 if(this.options.scroll) {
   if (this.options.scroll == window) {
     var where = this._getWindowScroll(this.options.scroll);
     this.originalScrollLeft = where.left;
     this.originalScrollTop = where.top;
   } else {
     this.originalScrollLeft = this.options.scroll.scrollLeft;
     this.originalScrollTop = this.options.scroll.scrollTop;
   }
 }

 Draggables.notify('onStart', this, event);

 if(this.options.starteffect) this.options.starteffect(this.element);
},

updateDrag: function(event, pointer) {
 if(!this.dragging) this.startDrag(event);

 if(!this.options.quiet){
   Position.prepare();
   Droppables.show(pointer, this.element);
 }

 Draggables.notify('onDrag', this, event);

 this.draw(pointer);
 if(this.options.change) this.options.change(this);

 if(this.options.scroll) {
   this.stopScrolling();

   var p;
   if (this.options.scroll == window) {
     with(this._getWindowScroll(this.options.scroll)) { p = [ left, top, left+width, top+height ]; }
   } else {
     p = Position.page(this.options.scroll);
     p[0] += this.options.scroll.scrollLeft + Position.deltaX;
     p[1] += this.options.scroll.scrollTop + Position.deltaY;
     p.push(p[0]+this.options.scroll.offsetWidth);
     p.push(p[1]+this.options.scroll.offsetHeight);
   }
   var speed = [0,0];
   if(pointer[0] < (p[0]+this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[0]+this.options.scrollSensitivity);
   if(pointer[1] < (p[1]+this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[1]+this.options.scrollSensitivity);
   if(pointer[0] > (p[2]-this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[2]-this.options.scrollSensitivity);
   if(pointer[1] > (p[3]-this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[3]-this.options.scrollSensitivity);
   this.startScrolling(speed);
 }

 // fix AppleWebKit rendering
 if(Prototype.Browser.WebKit) window.scrollBy(0,0);

 Event.stop(event);
},

finishDrag: function(event, success) {
 this.dragging = false;

 if(this.options.quiet){
   Position.prepare();
   var pointer = [Event.pointerX(event), Event.pointerY(event)];
   Droppables.show(pointer, this.element);
 }

 if(this.options.ghosting) {
   if (!this._originallyAbsolute)
     Position.relativize(this.element);
   delete this._originallyAbsolute;
   Element.remove(this._clone);
   this._clone = null;
 }

 var dropped = false;
 if(success) {
   dropped = Droppables.fire(event, this.element);
   if (!dropped) dropped = false;
 }
 if(dropped && this.options.onDropped) this.options.onDropped(this.element);
 Draggables.notify('onEnd', this, event);

 var revert = this.options.revert;
 if(revert && Object.isFunction(revert)) revert = revert(this.element);

 var d = this.currentDelta();
 if(revert && this.options.reverteffect) {
   if (dropped == 0 || revert != 'failure')
     this.options.reverteffect(this.element,
       d[1]-this.delta[1], d[0]-this.delta[0]);
 } else {
   this.delta = d;
 }

 if(this.options.zindex)
   this.element.style.zIndex = this.originalZ;

 if(this.options.endeffect)
   this.options.endeffect(this.element);

 Draggables.deactivate(this);
 Droppables.reset();
},

keyPress: function(event) {
 if(event.keyCode!=Event.KEY_ESC) return;
 this.finishDrag(event, false);
 Event.stop(event);
},

endDrag: function(event) {
 if(!this.dragging) return;
 this.stopScrolling();
 this.finishDrag(event, true);
 Event.stop(event);
},

draw: function(point) {
 var pos = Position.cumulativeOffset(this.element);
 if(this.options.ghosting) {
   var r   = Position.realOffset(this.element);
   pos[0] += r[0] - Position.deltaX; pos[1] += r[1] - Position.deltaY;
 }

 var d = this.currentDelta();
 pos[0] -= d[0]; pos[1] -= d[1];

 if(this.options.scroll && (this.options.scroll != window && this._isScrollChild)) {
   pos[0] -= this.options.scroll.scrollLeft-this.originalScrollLeft;
   pos[1] -= this.options.scroll.scrollTop-this.originalScrollTop;
 }

 var p = [0,1].map(function(i){
   return (point[i]-pos[i]-this.offset[i])
 }.bind(this));

 if(this.options.snap) {
   if(Object.isFunction(this.options.snap)) {
     p = this.options.snap(p[0],p[1],this);
   } else {
   if(Object.isArray(this.options.snap)) {
     p = p.map( function(v, i) {
       return (v/this.options.snap[i]).round()*this.options.snap[i] }.bind(this));
   } else {
     p = p.map( function(v) {
       return (v/this.options.snap).round()*this.options.snap }.bind(this));
   }
 }}

 var style = this.element.style;
 if((!this.options.constraint) || (this.options.constraint=='horizontal'))
   style.left = p[0] + "px";
 if((!this.options.constraint) || (this.options.constraint=='vertical'))
   style.top  = p[1] + "px";

 if(style.visibility=="hidden") style.visibility = ""; // fix gecko rendering
},

stopScrolling: function() {
 if(this.scrollInterval) {
   clearInterval(this.scrollInterval);
   this.scrollInterval = null;
   Draggables._lastScrollPointer = null;
 }
},

startScrolling: function(speed) {
 if(!(speed[0] || speed[1])) return;
 this.scrollSpeed = [speed[0]*this.options.scrollSpeed,speed[1]*this.options.scrollSpeed];
 this.lastScrolled = new Date();
 this.scrollInterval = setInterval(this.scroll.bind(this), 10);
},

scroll: function() {
 var current = new Date();
 var delta = current - this.lastScrolled;
 this.lastScrolled = current;
 if(this.options.scroll == window) {
   with (this._getWindowScroll(this.options.scroll)) {
     if (this.scrollSpeed[0] || this.scrollSpeed[1]) {
       var d = delta / 1000;
       this.options.scroll.scrollTo( left + d*this.scrollSpeed[0], top + d*this.scrollSpeed[1] );
     }
   }
 } else {
   this.options.scroll.scrollLeft += this.scrollSpeed[0] * delta / 1000;
   this.options.scroll.scrollTop  += this.scrollSpeed[1] * delta / 1000;
 }

 Position.prepare();
 Droppables.show(Draggables._lastPointer, this.element);
 Draggables.notify('onDrag', this);
 if (this._isScrollChild) {
   Draggables._lastScrollPointer = Draggables._lastScrollPointer || $A(Draggables._lastPointer);
   Draggables._lastScrollPointer[0] += this.scrollSpeed[0] * delta / 1000;
   Draggables._lastScrollPointer[1] += this.scrollSpeed[1] * delta / 1000;
   if (Draggables._lastScrollPointer[0] < 0)
     Draggables._lastScrollPointer[0] = 0;
   if (Draggables._lastScrollPointer[1] < 0)
     Draggables._lastScrollPointer[1] = 0;
   this.draw(Draggables._lastScrollPointer);
 }

 if(this.options.change) this.options.change(this);
},

_getWindowScroll: function(w) {
 var T, L, W, H;
 with (w.document) {
   if (w.document.documentElement && documentElement.scrollTop) {
     T = documentElement.scrollTop;
     L = documentElement.scrollLeft;
   } else if (w.document.body) {
     T = body.scrollTop;
     L = body.scrollLeft;
   }
   if (w.innerWidth) {
     W = w.innerWidth;
     H = w.innerHeight;
   } else if (w.document.documentElement && documentElement.clientWidth) {
     W = documentElement.clientWidth;
     H = documentElement.clientHeight;
   } else {
     W = body.offsetWidth;
     H = body.offsetHeight;
   }
 }
 return { top: T, left: L, width: W, height: H };
}
});

Draggable._dragging = { };

/*--------------------------------------------------------------------------*/

var SortableObserver = Class.create({
initialize: function(element, observer) {
 this.element   = $(element);
 this.observer  = observer;
 this.lastValue = Sortable.serialize(this.element);
},

onStart: function() {
 this.lastValue = Sortable.serialize(this.element);
},

onEnd: function() {
 Sortable.unmark();
 if(this.lastValue != Sortable.serialize(this.element))
   this.observer(this.element)
}
});

var Sortable = {
SERIALIZE_RULE: /^[^_\-](?:[A-Za-z0-9\-\_]*)[_](.*)$/,

sortables: { },

_findRootElement: function(element) {
 while (element.tagName.toUpperCase() != "BODY") {
   if(element.id && Sortable.sortables[element.id]) return element;
   element = element.parentNode;
 }
},

options: function(element) {
 element = Sortable._findRootElement($(element));
 if(!element) return;
 return Sortable.sortables[element.id];
},

destroy: function(element){
 element = $(element);
 var s = Sortable.sortables[element.id];

 if(s) {
   Draggables.removeObserver(s.element);
   s.droppables.each(function(d){ Droppables.remove(d) });
   s.draggables.invoke('destroy');

   delete Sortable.sortables[s.element.id];
 }
},

create: function(element) {
 element = $(element);
 var options = Object.extend({
   element:     element,
   tag:         'li',       // assumes li children, override with tag: 'tagname'
   dropOnEmpty: false,
   tree:        false,
   treeTag:     'ul',
   overlap:     'vertical', // one of 'vertical', 'horizontal'
   constraint:  'vertical', // one of 'vertical', 'horizontal', false
   containment: element,    // also takes array of elements (or id's); or false
   handle:      false,      // or a CSS class
   only:        false,
   delay:       0,
   hoverclass:  null,
   ghosting:    false,
   quiet:       false,
   scroll:      false,
   scrollSensitivity: 20,
   scrollSpeed: 15,
   format:      this.SERIALIZE_RULE,

   // these take arrays of elements or ids and can be
   // used for better initialization performance
   elements:    false,
   handles:     false,

   onChange:    Prototype.emptyFunction,
   onUpdate:    Prototype.emptyFunction
 }, arguments[1] || { });

 // clear any old sortable with same element
 this.destroy(element);

 // build options for the draggables
 var options_for_draggable = {
   revert:      true,
   quiet:       options.quiet,
   scroll:      options.scroll,
   scrollSpeed: options.scrollSpeed,
   scrollSensitivity: options.scrollSensitivity,
   delay:       options.delay,
   ghosting:    options.ghosting,
   constraint:  options.constraint,
   handle:      options.handle };

 if(options.starteffect)
   options_for_draggable.starteffect = options.starteffect;

 if(options.reverteffect)
   options_for_draggable.reverteffect = options.reverteffect;
 else
   if(options.ghosting) options_for_draggable.reverteffect = function(element) {
     element.style.top  = 0;
     element.style.left = 0;
   };

 if(options.endeffect)
   options_for_draggable.endeffect = options.endeffect;

 if(options.zindex)
   options_for_draggable.zindex = options.zindex;

 // build options for the droppables
 var options_for_droppable = {
   overlap:     options.overlap,
   containment: options.containment,
   tree:        options.tree,
   hoverclass:  options.hoverclass,
   onHover:     Sortable.onHover
 };

 var options_for_tree = {
   onHover:      Sortable.onEmptyHover,
   overlap:      options.overlap,
   containment:  options.containment,
   hoverclass:   options.hoverclass
 };

 // fix for gecko engine
 Element.cleanWhitespace(element);

 options.draggables = [];
 options.droppables = [];

 // drop on empty handling
 if(options.dropOnEmpty || options.tree) {
   Droppables.add(element, options_for_tree);
   options.droppables.push(element);
 }

 (options.elements || this.findElements(element, options) || []).each( function(e,i) {
   var handle = options.handles ? $(options.handles[i]) :
     (options.handle ? $(e).select('.' + options.handle)[0] : e);
   options.draggables.push(
     new Draggable(e, Object.extend(options_for_draggable, { handle: handle })));
   Droppables.add(e, options_for_droppable);
   if(options.tree) e.treeNode = element;
   options.droppables.push(e);
 });

 if(options.tree) {
   (Sortable.findTreeElements(element, options) || []).each( function(e) {
     Droppables.add(e, options_for_tree);
     e.treeNode = element;
     options.droppables.push(e);
   });
 }

 // keep reference
 this.sortables[element.id] = options;

 // for onupdate
 Draggables.addObserver(new SortableObserver(element, options.onUpdate));

},

// return all suitable-for-sortable elements in a guaranteed order
findElements: function(element, options) {
 return Element.findChildren(
   element, options.only, options.tree ? true : false, options.tag);
},

findTreeElements: function(element, options) {
 return Element.findChildren(
   element, options.only, options.tree ? true : false, options.treeTag);
},

onHover: function(element, dropon, overlap) {
 if(Element.isParent(dropon, element)) return;

 if(overlap > .33 && overlap < .66 && Sortable.options(dropon).tree) {
   return;
 } else if(overlap>0.5) {
   Sortable.mark(dropon, 'before');
   if(dropon.previousSibling != element) {
     var oldParentNode = element.parentNode;
     element.style.visibility = "hidden"; // fix gecko rendering
     dropon.parentNode.insertBefore(element, dropon);
     if(dropon.parentNode!=oldParentNode)
       Sortable.options(oldParentNode).onChange(element);
     Sortable.options(dropon.parentNode).onChange(element);
   }
 } else {
   Sortable.mark(dropon, 'after');
   var nextElement = dropon.nextSibling || null;
   if(nextElement != element) {
     var oldParentNode = element.parentNode;
     element.style.visibility = "hidden"; // fix gecko rendering
     dropon.parentNode.insertBefore(element, nextElement);
     if(dropon.parentNode!=oldParentNode)
       Sortable.options(oldParentNode).onChange(element);
     Sortable.options(dropon.parentNode).onChange(element);
   }
 }
},

onEmptyHover: function(element, dropon, overlap) {
 var oldParentNode = element.parentNode;
 var droponOptions = Sortable.options(dropon);

 if(!Element.isParent(dropon, element)) {
   var index;

   var children = Sortable.findElements(dropon, {tag: droponOptions.tag, only: droponOptions.only});
   var child = null;

   if(children) {
     var offset = Element.offsetSize(dropon, droponOptions.overlap) * (1.0 - overlap);

     for (index = 0; index < children.length; index += 1) {
       if (offset - Element.offsetSize (children[index], droponOptions.overlap) >= 0) {
         offset -= Element.offsetSize (children[index], droponOptions.overlap);
       } else if (offset - (Element.offsetSize (children[index], droponOptions.overlap) / 2) >= 0) {
         child = index + 1 < children.length ? children[index + 1] : null;
         break;
       } else {
         child = children[index];
         break;
       }
     }
   }

   dropon.insertBefore(element, child);

   Sortable.options(oldParentNode).onChange(element);
   droponOptions.onChange(element);
 }
},

unmark: function() {
 if(Sortable._marker) Sortable._marker.hide();
},

mark: function(dropon, position) {
 // mark on ghosting only
 var sortable = Sortable.options(dropon.parentNode);
 if(sortable && !sortable.ghosting) return;

 if(!Sortable._marker) {
   Sortable._marker =
     ($('dropmarker') || Element.extend(document.createElement('DIV'))).
       hide().addClassName('dropmarker').setStyle({position:'absolute'});
   document.getElementsByTagName("body").item(0).appendChild(Sortable._marker);
 }
 var offsets = Position.cumulativeOffset(dropon);
 Sortable._marker.setStyle({left: offsets[0]+'px', top: offsets[1] + 'px'});

 if(position=='after')
   if(sortable.overlap == 'horizontal')
     Sortable._marker.setStyle({left: (offsets[0]+dropon.clientWidth) + 'px'});
   else
     Sortable._marker.setStyle({top: (offsets[1]+dropon.clientHeight) + 'px'});

 Sortable._marker.show();
},

_tree: function(element, options, parent) {
 var children = Sortable.findElements(element, options) || [];

 for (var i = 0; i < children.length; ++i) {
   var match = children[i].id.match(options.format);

   if (!match) continue;

   var child = {
     id: encodeURIComponent(match ? match[1] : null),
     element: element,
     parent: parent,
     children: [],
     position: parent.children.length,
     container: $(children[i]).down(options.treeTag)
   };

   /* Get the element containing the children and recurse over it */
   if (child.container)
     this._tree(child.container, options, child);

   parent.children.push (child);
 }

 return parent;
},

tree: function(element) {
 element = $(element);
 var sortableOptions = this.options(element);
 var options = Object.extend({
   tag: sortableOptions.tag,
   treeTag: sortableOptions.treeTag,
   only: sortableOptions.only,
   name: element.id,
   format: sortableOptions.format
 }, arguments[1] || { });

 var root = {
   id: null,
   parent: null,
   children: [],
   container: element,
   position: 0
 };

 return Sortable._tree(element, options, root);
},

/* Construct a [i] index for a particular node */
_constructIndex: function(node) {
 var index = '';
 do {
   if (node.id) index = '[' + node.position + ']' + index;
 } while ((node = node.parent) != null);
 return index;
},

sequence: function(element) {
 element = $(element);
 var options = Object.extend(this.options(element), arguments[1] || { });

 return $(this.findElements(element, options) || []).map( function(item) {
   return item.id.match(options.format) ? item.id.match(options.format)[1] : '';
 });
},

setSequence: function(element, new_sequence) {
 element = $(element);
 var options = Object.extend(this.options(element), arguments[2] || { });

 var nodeMap = { };
 this.findElements(element, options).each( function(n) {
     if (n.id.match(options.format))
         nodeMap[n.id.match(options.format)[1]] = [n, n.parentNode];
     n.parentNode.removeChild(n);
 });

 new_sequence.each(function(ident) {
   var n = nodeMap[ident];
   if (n) {
     n[1].appendChild(n[0]);
     delete nodeMap[ident];
   }
 });
},

serialize: function(element) {
 element = $(element);
 var options = Object.extend(Sortable.options(element), arguments[1] || { });
 var name = encodeURIComponent(
   (arguments[1] && arguments[1].name) ? arguments[1].name : element.id);

 if (options.tree) {
   return Sortable.tree(element, arguments[1]).children.map( function (item) {
     return [name + Sortable._constructIndex(item) + "[id]=" +
             encodeURIComponent(item.id)].concat(item.children.map(arguments.callee));
   }).flatten().join('&');
 } else {
   return Sortable.sequence(element, arguments[1]).map( function(item) {
     return name + "[]=" + encodeURIComponent(item);
   }).join('&');
 }
}
};

//Returns true if child is contained within element
Element.isParent = function(child, element) {
if (!child.parentNode || child == element) return false;
if (child.parentNode == element) return true;
return Element.isParent(child.parentNode, element);
};

Element.findChildren = function(element, only, recursive, tagName) {
if(!element.hasChildNodes()) return null;
tagName = tagName.toUpperCase();
if(only) only = [only].flatten();
var elements = [];
$A(element.childNodes).each( function(e) {
 if(e.tagName && e.tagName.toUpperCase()==tagName &&
   (!only || (Element.classNames(e).detect(function(v) { return only.include(v) }))))
     elements.push(e);
 if(recursive) {
   var grandchildren = Element.findChildren(e, only, recursive, tagName);
   if(grandchildren) elements.push(grandchildren);
 }
});

return (elements.length>0 ? elements.flatten() : []);
};

Element.offsetSize = function (element, type) {
return element['offset' + ((type=='vertical' || type=='height') ? 'Height' : 'Width')];
};

//script.aculo.us controls.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

//Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//        (c) 2005-2008 Ivan Krstic (http://blogs.law.harvard.edu/ivan)
//        (c) 2005-2008 Jon Tirsen (http://www.tirsen.com)
//Contributors:
//Richard Livsey
//Rahul Bhargava
//Rob Wills
//
//script.aculo.us is freely distributable under the terms of an MIT-style license.
//For details, see the script.aculo.us web site: http://script.aculo.us/

//Autocompleter.Base handles all the autocompletion functionality
//that's independent of the data source for autocompletion. This
//includes drawing the autocompletion menu, observing keyboard
//and mouse events, and similar.
//
//Specific autocompleters need to provide, at the very least,
//a getUpdatedChoices function that will be invoked every time
//the text inside the monitored textbox changes. This method
//should get the text for which to provide autocompletion by
//invoking this.getToken(), NOT by directly accessing
//this.element.value. This is to allow incremental tokenized
//autocompletion. Specific auto-completion logic (AJAX, etc)
//belongs in getUpdatedChoices.
//
//Tokenized incremental autocompletion is enabled automatically
//when an autocompleter is instantiated with the 'tokens' option
//in the options parameter, e.g.:
//new Ajax.Autocompleter('id','upd', '/url/', { tokens: ',' });
//will incrementally autocomplete with a comma as the token.
//Additionally, ',' in the above example can be replaced with
//a token array, e.g. { tokens: [',', '\n'] } which
//enables autocompletion on multiple tokens. This is most
//useful when one of the tokens is \n (a newline), as it
//allows smart autocompletion after linebreaks.

if(typeof Effect == 'undefined')
throw("controls.js requires including script.aculo.us' effects.js library");

var Autocompleter = { };
Autocompleter.Base = Class.create({
baseInitialize: function(element, update, options) {
 element          = $(element);
 this.element     = element;
 this.update      = $(update);
 this.hasFocus    = false;
 this.changed     = false;
 this.active      = false;
 this.index       = 0;
 this.entryCount  = 0;
 this.oldElementValue = this.element.value;

 if(this.setOptions)
   this.setOptions(options);
 else
   this.options = options || { };

 this.options.paramName    = this.options.paramName || this.element.name;
 this.options.tokens       = this.options.tokens || [];
 this.options.frequency    = this.options.frequency || 0.4;
 this.options.minChars     = this.options.minChars || 1;
 this.options.onShow       = this.options.onShow ||
   function(element, update){
     if(!update.style.position || update.style.position=='absolute') {
       update.style.position = 'absolute';
       Position.clone(element, update, {
         setHeight: false,
         offsetTop: element.offsetHeight
       });
     }
     Effect.Appear(update,{duration:0.15});
   };
 this.options.onHide = this.options.onHide ||
   function(element, update){ new Effect.Fade(update,{duration:0.15}) };

 if(typeof(this.options.tokens) == 'string')
   this.options.tokens = new Array(this.options.tokens);
 // Force carriage returns as token delimiters anyway
 if (!this.options.tokens.include('\n'))
   this.options.tokens.push('\n');

 this.observer = null;

 this.element.setAttribute('autocomplete','off');

 Element.hide(this.update);

 Event.observe(this.element, 'blur', this.onBlur.bindAsEventListener(this));
 Event.observe(this.element, 'keydown', this.onKeyPress.bindAsEventListener(this));
},

show: function() {
 if(Element.getStyle(this.update, 'display')=='none') this.options.onShow(this.element, this.update);
 if(!this.iefix &&
   (Prototype.Browser.IE) &&
   (Element.getStyle(this.update, 'position')=='absolute')) {
   new Insertion.After(this.update,
    '<iframe id="' + this.update.id + '_iefix" '+
    'style="display:none;position:absolute;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);" ' +
    'src="javascript:false;" frameborder="0" scrolling="no"></iframe>');
   this.iefix = $(this.update.id+'_iefix');
 }
 if(this.iefix) setTimeout(this.fixIEOverlapping.bind(this), 50);
},

fixIEOverlapping: function() {
 Position.clone(this.update, this.iefix, {setTop:(!this.update.style.height)});
 this.iefix.style.zIndex = 1;
 this.update.style.zIndex = 2;
 Element.show(this.iefix);
},

hide: function() {
 this.stopIndicator();
 if(Element.getStyle(this.update, 'display')!='none') this.options.onHide(this.element, this.update);
 if(this.iefix) Element.hide(this.iefix);
},

startIndicator: function() {
 if(this.options.indicator) Element.show(this.options.indicator);
},

stopIndicator: function() {
 if(this.options.indicator) Element.hide(this.options.indicator);
},

onKeyPress: function(event) {
 if(this.active)
   switch(event.keyCode) {
    case Event.KEY_TAB:
    case Event.KEY_RETURN:
      this.selectEntry();
      Event.stop(event);
    case Event.KEY_ESC:
      this.hide();
      this.active = false;
      Event.stop(event);
      return;
    case Event.KEY_LEFT:
    case Event.KEY_RIGHT:
      return;
    case Event.KEY_UP:
      this.markPrevious();
      this.render();
      Event.stop(event);
      return;
    case Event.KEY_DOWN:
      this.markNext();
      this.render();
      Event.stop(event);
      return;
   }
  else
    if(event.keyCode==Event.KEY_TAB || event.keyCode==Event.KEY_RETURN ||
      (Prototype.Browser.WebKit > 0 && event.keyCode == 0)) return;

 this.changed = true;
 this.hasFocus = true;

 if(this.observer) clearTimeout(this.observer);
   this.observer =
     setTimeout(this.onObserverEvent.bind(this), this.options.frequency*1000);
},

activate: function() {
 this.changed = false;
 this.hasFocus = true;
 this.getUpdatedChoices();
},

onHover: function(event) {
 var element = Event.findElement(event, 'LI');
 if(this.index != element.autocompleteIndex)
 {
     this.index = element.autocompleteIndex;
     this.render();
 }
 Event.stop(event);
},

onClick: function(event) {
 var element = Event.findElement(event, 'LI');
 this.index = element.autocompleteIndex;
 this.selectEntry();
 this.hide();
},

onBlur: function(event) {
 // needed to make click events working
 setTimeout(this.hide.bind(this), 250);
 this.hasFocus = false;
 this.active = false;
},

render: function() {
 if(this.entryCount > 0) {
   for (var i = 0; i < this.entryCount; i++)
     this.index==i ?
       Element.addClassName(this.getEntry(i),"selected") :
       Element.removeClassName(this.getEntry(i),"selected");
   if(this.hasFocus) {
     this.show();
     this.active = true;
   }
 } else {
   this.active = false;
   this.hide();
 }
},

markPrevious: function() {
 if(this.index > 0) this.index--;
   else this.index = this.entryCount-1;
 this.getEntry(this.index).scrollIntoView(true);
},

markNext: function() {
 if(this.index < this.entryCount-1) this.index++;
   else this.index = 0;
 this.getEntry(this.index).scrollIntoView(false);
},

getEntry: function(index) {
 return this.update.firstChild.childNodes[index];
},

getCurrentEntry: function() {
 return this.getEntry(this.index);
},

selectEntry: function() {
 this.active = false;
 this.updateElement(this.getCurrentEntry());
},

updateElement: function(selectedElement) {
 if (this.options.updateElement) {
   this.options.updateElement(selectedElement);
   return;
 }
 var value = '';
 if (this.options.select) {
   var nodes = $(selectedElement).select('.' + this.options.select) || [];
   if(nodes.length>0) value = Element.collectTextNodes(nodes[0], this.options.select);
 } else
   value = Element.collectTextNodesIgnoreClass(selectedElement, 'informal');

 var bounds = this.getTokenBounds();
 if (bounds[0] != -1) {
   var newValue = this.element.value.substr(0, bounds[0]);
   var whitespace = this.element.value.substr(bounds[0]).match(/^\s+/);
   if (whitespace)
     newValue += whitespace[0];
   this.element.value = newValue + value + this.element.value.substr(bounds[1]);
 } else {
   this.element.value = value;
 }
 this.oldElementValue = this.element.value;
 this.element.focus();

 if (this.options.afterUpdateElement)
   this.options.afterUpdateElement(this.element, selectedElement);
},

updateChoices: function(choices) {
 if(!this.changed && this.hasFocus) {
   this.update.innerHTML = choices;
   Element.cleanWhitespace(this.update);
   Element.cleanWhitespace(this.update.down());

   if(this.update.firstChild && this.update.down().childNodes) {
     this.entryCount =
       this.update.down().childNodes.length;
     for (var i = 0; i < this.entryCount; i++) {
       var entry = this.getEntry(i);
       entry.autocompleteIndex = i;
       this.addObservers(entry);
     }
   } else {
     this.entryCount = 0;
   }

   this.stopIndicator();
   this.index = 0;

   if(this.entryCount==1 && this.options.autoSelect) {
     this.selectEntry();
     this.hide();
   } else {
     this.render();
   }
 }
},

addObservers: function(element) {
 Event.observe(element, "mouseover", this.onHover.bindAsEventListener(this));
 Event.observe(element, "click", this.onClick.bindAsEventListener(this));
},

onObserverEvent: function() {
 this.changed = false;
 this.tokenBounds = null;
 if(this.getToken().length>=this.options.minChars) {
   this.getUpdatedChoices();
 } else {
   this.active = false;
   this.hide();
 }
 this.oldElementValue = this.element.value;
},

getToken: function() {
 var bounds = this.getTokenBounds();
 return this.element.value.substring(bounds[0], bounds[1]).strip();
},

getTokenBounds: function() {
 if (null != this.tokenBounds) return this.tokenBounds;
 var value = this.element.value;
 if (value.strip().empty()) return [-1, 0];
 var diff = arguments.callee.getFirstDifferencePos(value, this.oldElementValue);
 var offset = (diff == this.oldElementValue.length ? 1 : 0);
 var prevTokenPos = -1, nextTokenPos = value.length;
 var tp;
 for (var index = 0, l = this.options.tokens.length; index < l; ++index) {
   tp = value.lastIndexOf(this.options.tokens[index], diff + offset - 1);
   if (tp > prevTokenPos) prevTokenPos = tp;
   tp = value.indexOf(this.options.tokens[index], diff + offset);
   if (-1 != tp && tp < nextTokenPos) nextTokenPos = tp;
 }
 return (this.tokenBounds = [prevTokenPos + 1, nextTokenPos]);
}
});

Autocompleter.Base.prototype.getTokenBounds.getFirstDifferencePos = function(newS, oldS) {
var boundary = Math.min(newS.length, oldS.length);
for (var index = 0; index < boundary; ++index)
 if (newS[index] != oldS[index])
   return index;
return boundary;
};

Ajax.Autocompleter = Class.create(Autocompleter.Base, {
initialize: function(element, update, url, options) {
 this.baseInitialize(element, update, options);
 this.options.asynchronous  = true;
 this.options.onComplete    = this.onComplete.bind(this);
 this.options.defaultParams = this.options.parameters || null;
 this.url                   = url;
},

getUpdatedChoices: function() {
 this.startIndicator();

 var entry = encodeURIComponent(this.options.paramName) + '=' +
   encodeURIComponent(this.getToken());

 this.options.parameters = this.options.callback ?
   this.options.callback(this.element, entry) : entry;

 if(this.options.defaultParams)
   this.options.parameters += '&' + this.options.defaultParams;

 new Ajax.Request(this.url, this.options);
},

onComplete: function(request) {
 this.updateChoices(request.responseText);
}
});

//The local array autocompleter. Used when you'd prefer to
//inject an array of autocompletion options into the page, rather
//than sending out Ajax queries, which can be quite slow sometimes.
//
//The constructor takes four parameters. The first two are, as usual,
//the id of the monitored textbox, and id of the autocompletion menu.
//The third is the array you want to autocomplete from, and the fourth
//is the options block.
//
//Extra local autocompletion options:
//- choices - How many autocompletion choices to offer
//
//- partialSearch - If false, the autocompleter will match entered
//                 text only at the beginning of strings in the
//                 autocomplete array. Defaults to true, which will
//                 match text at the beginning of any *word* in the
//                 strings in the autocomplete array. If you want to
//                 search anywhere in the string, additionally set
//                 the option fullSearch to true (default: off).
//
//- fullSsearch - Search anywhere in autocomplete array strings.
//
//- partialChars - How many characters to enter before triggering
//                a partial match (unlike minChars, which defines
//                how many characters are required to do any match
//                at all). Defaults to 2.
//
//- ignoreCase - Whether to ignore case when autocompleting.
//              Defaults to true.
//
//It's possible to pass in a custom function as the 'selector'
//option, if you prefer to write your own autocompletion logic.
//In that case, the other options above will not apply unless
//you support them.

Autocompleter.Local = Class.create(Autocompleter.Base, {
initialize: function(element, update, array, options) {
 this.baseInitialize(element, update, options);
 this.options.array = array;
},

getUpdatedChoices: function() {
 this.updateChoices(this.options.selector(this));
},

setOptions: function(options) {
 this.options = Object.extend({
   choices: 10,
   partialSearch: true,
   partialChars: 2,
   ignoreCase: true,
   fullSearch: false,
   selector: function(instance) {
     var ret       = []; // Beginning matches
     var partial   = []; // Inside matches
     var entry     = instance.getToken();
     var count     = 0;

     for (var i = 0; i < instance.options.array.length &&
       ret.length < instance.options.choices ; i++) {

       var elem = instance.options.array[i];
       var foundPos = instance.options.ignoreCase ?
         elem.toLowerCase().indexOf(entry.toLowerCase()) :
         elem.indexOf(entry);

       while (foundPos != -1) {
         if (foundPos == 0 && elem.length != entry.length) {
           ret.push("<li><strong>" + elem.substr(0, entry.length) + "</strong>" +
             elem.substr(entry.length) + "</li>");
           break;
         } else if (entry.length >= instance.options.partialChars &&
           instance.options.partialSearch && foundPos != -1) {
           if (instance.options.fullSearch || /\s/.test(elem.substr(foundPos-1,1))) {
             partial.push("<li>" + elem.substr(0, foundPos) + "<strong>" +
               elem.substr(foundPos, entry.length) + "</strong>" + elem.substr(
               foundPos + entry.length) + "</li>");
             break;
           }
         }

         foundPos = instance.options.ignoreCase ?
           elem.toLowerCase().indexOf(entry.toLowerCase(), foundPos + 1) :
           elem.indexOf(entry, foundPos + 1);

       }
     }
     if (partial.length)
       ret = ret.concat(partial.slice(0, instance.options.choices - ret.length));
     return "<ul>" + ret.join('') + "</ul>";
   }
 }, options || { });
}
});

//AJAX in-place editor and collection editor
//Full rewrite by Christophe Porteneuve <tdd@tddsworld.com> (April 2007).

//Use this if you notice weird scrolling problems on some browsers,
//the DOM might be a bit confused when this gets called so do this
//waits 1 ms (with setTimeout) until it does the activation
Field.scrollFreeActivate = function(field) {
setTimeout(function() {
 Field.activate(field);
}, 1);
};

Ajax.InPlaceEditor = Class.create({
initialize: function(element, url, options) {
 this.url = url;
 this.element = element = $(element);
 this.prepareOptions();
 this._controls = { };
 arguments.callee.dealWithDeprecatedOptions(options); // DEPRECATION LAYER!!!
 Object.extend(this.options, options || { });
 if (!this.options.formId && this.element.id) {
   this.options.formId = this.element.id + '-inplaceeditor';
   if ($(this.options.formId))
     this.options.formId = '';
 }
 if (this.options.externalControl)
   this.options.externalControl = $(this.options.externalControl);
 if (!this.options.externalControl)
   this.options.externalControlOnly = false;
 this._originalBackground = this.element.getStyle('background-color') || 'transparent';
 this.element.title = this.options.clickToEditText;
 this._boundCancelHandler = this.handleFormCancellation.bind(this);
 this._boundComplete = (this.options.onComplete || Prototype.emptyFunction).bind(this);
 this._boundFailureHandler = this.handleAJAXFailure.bind(this);
 this._boundSubmitHandler = this.handleFormSubmission.bind(this);
 this._boundWrapperHandler = this.wrapUp.bind(this);
 this.registerListeners();
},
checkForEscapeOrReturn: function(e) {
 if (!this._editing || e.ctrlKey || e.altKey || e.shiftKey) return;
 if (Event.KEY_ESC == e.keyCode)
   this.handleFormCancellation(e);
 else if (Event.KEY_RETURN == e.keyCode)
   this.handleFormSubmission(e);
},
createControl: function(mode, handler, extraClasses) {
 var control = this.options[mode + 'Control'];
 var text = this.options[mode + 'Text'];
 if ('button' == control) {
   var btn = document.createElement('input');
   btn.type = 'submit';
   btn.value = text;
   btn.className = 'editor_' + mode + '_button';
   if ('cancel' == mode)
     btn.onclick = this._boundCancelHandler;
   this._form.appendChild(btn);
   this._controls[mode] = btn;
 } else if ('link' == control) {
   var link = document.createElement('a');
   link.href = '#';
   link.appendChild(document.createTextNode(text));
   link.onclick = 'cancel' == mode ? this._boundCancelHandler : this._boundSubmitHandler;
   link.className = 'editor_' + mode + '_link';
   if (extraClasses)
     link.className += ' ' + extraClasses;
   this._form.appendChild(link);
   this._controls[mode] = link;
 }
},
createEditField: function() {
 var text = (this.options.loadTextURL ? this.options.loadingText : this.getText());
 var fld;
 if (1 >= this.options.rows && !/\r|\n/.test(this.getText())) {
   fld = document.createElement('input');
   fld.type = 'text';
   var size = this.options.size || this.options.cols || 0;
   if (0 < size) fld.size = size;
 } else {
   fld = document.createElement('textarea');
   fld.rows = (1 >= this.options.rows ? this.options.autoRows : this.options.rows);
   fld.cols = this.options.cols || 40;
 }
 fld.name = this.options.paramName;
 fld.value = text; // No HTML breaks conversion anymore
 fld.className = 'editor_field';
 if (this.options.submitOnBlur)
   fld.onblur = this._boundSubmitHandler;
 this._controls.editor = fld;
 if (this.options.loadTextURL)
   this.loadExternalText();
 this._form.appendChild(this._controls.editor);
},
createForm: function() {
 var ipe = this;
 function addText(mode, condition) {
   var text = ipe.options['text' + mode + 'Controls'];
   if (!text || condition === false) return;
   ipe._form.appendChild(document.createTextNode(text));
 };
 this._form = $(document.createElement('form'));
 this._form.id = this.options.formId;
 this._form.addClassName(this.options.formClassName);
 this._form.onsubmit = this._boundSubmitHandler;
 this.createEditField();
 if ('textarea' == this._controls.editor.tagName.toLowerCase())
   this._form.appendChild(document.createElement('br'));
 if (this.options.onFormCustomization)
   this.options.onFormCustomization(this, this._form);
 addText('Before', this.options.okControl || this.options.cancelControl);
 this.createControl('ok', this._boundSubmitHandler);
 addText('Between', this.options.okControl && this.options.cancelControl);
 this.createControl('cancel', this._boundCancelHandler, 'editor_cancel');
 addText('After', this.options.okControl || this.options.cancelControl);
},
destroy: function() {
 if (this._oldInnerHTML)
   this.element.innerHTML = this._oldInnerHTML;
 this.leaveEditMode();
 this.unregisterListeners();
},
enterEditMode: function(e) {
 if (this._saving || this._editing) return;
 this._editing = true;
 this.triggerCallback('onEnterEditMode');
 if (this.options.externalControl)
   this.options.externalControl.hide();
 this.element.hide();
 this.createForm();
 this.element.parentNode.insertBefore(this._form, this.element);
 if (!this.options.loadTextURL)
   this.postProcessEditField();
 if (e) Event.stop(e);
},
enterHover: function(e) {
 if (this.options.hoverClassName)
   this.element.addClassName(this.options.hoverClassName);
 if (this._saving) return;
 this.triggerCallback('onEnterHover');
},
getText: function() {
 return this.element.innerHTML.unescapeHTML();
},
handleAJAXFailure: function(transport) {
 this.triggerCallback('onFailure', transport);
 if (this._oldInnerHTML) {
   this.element.innerHTML = this._oldInnerHTML;
   this._oldInnerHTML = null;
 }
},
handleFormCancellation: function(e) {
 this.wrapUp();
 if (e) Event.stop(e);
},
handleFormSubmission: function(e) {
 var form = this._form;
 var value = $F(this._controls.editor);
 this.prepareSubmission();
 var params = this.options.callback(form, value) || '';
 if (Object.isString(params))
   params = params.toQueryParams();
 params.editorId = this.element.id;
 if (this.options.htmlResponse) {
   var options = Object.extend({ evalScripts: true }, this.options.ajaxOptions);
   Object.extend(options, {
     parameters: params,
     onComplete: this._boundWrapperHandler,
     onFailure: this._boundFailureHandler
   });
   new Ajax.Updater({ success: this.element }, this.url, options);
 } else {
   var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
   Object.extend(options, {
     parameters: params,
     onComplete: this._boundWrapperHandler,
     onFailure: this._boundFailureHandler
   });
   new Ajax.Request(this.url, options);
 }
 if (e) Event.stop(e);
},
leaveEditMode: function() {
 this.element.removeClassName(this.options.savingClassName);
 this.removeForm();
 this.leaveHover();
 this.element.style.backgroundColor = this._originalBackground;
 this.element.show();
 if (this.options.externalControl)
   this.options.externalControl.show();
 this._saving = false;
 this._editing = false;
 this._oldInnerHTML = null;
 this.triggerCallback('onLeaveEditMode');
},
leaveHover: function(e) {
 if (this.options.hoverClassName)
   this.element.removeClassName(this.options.hoverClassName);
 if (this._saving) return;
 this.triggerCallback('onLeaveHover');
},
loadExternalText: function() {
 this._form.addClassName(this.options.loadingClassName);
 this._controls.editor.disabled = true;
 var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
 Object.extend(options, {
   parameters: 'editorId=' + encodeURIComponent(this.element.id),
   onComplete: Prototype.emptyFunction,
   onSuccess: function(transport) {
     this._form.removeClassName(this.options.loadingClassName);
     var text = transport.responseText;
     if (this.options.stripLoadedTextTags)
       text = text.stripTags();
     this._controls.editor.value = text;
     this._controls.editor.disabled = false;
     this.postProcessEditField();
   }.bind(this),
   onFailure: this._boundFailureHandler
 });
 new Ajax.Request(this.options.loadTextURL, options);
},
postProcessEditField: function() {
 var fpc = this.options.fieldPostCreation;
 if (fpc)
   $(this._controls.editor)['focus' == fpc ? 'focus' : 'activate']();
},
prepareOptions: function() {
 this.options = Object.clone(Ajax.InPlaceEditor.DefaultOptions);
 Object.extend(this.options, Ajax.InPlaceEditor.DefaultCallbacks);
 [this._extraDefaultOptions].flatten().compact().each(function(defs) {
   Object.extend(this.options, defs);
 }.bind(this));
},
prepareSubmission: function() {
 this._saving = true;
 this.removeForm();
 this.leaveHover();
 this.showSaving();
},
registerListeners: function() {
 this._listeners = { };
 var listener;
 $H(Ajax.InPlaceEditor.Listeners).each(function(pair) {
   listener = this[pair.value].bind(this);
   this._listeners[pair.key] = listener;
   if (!this.options.externalControlOnly)
     this.element.observe(pair.key, listener);
   if (this.options.externalControl)
     this.options.externalControl.observe(pair.key, listener);
 }.bind(this));
},
removeForm: function() {
 if (!this._form) return;
 this._form.remove();
 this._form = null;
 this._controls = { };
},
showSaving: function() {
 this._oldInnerHTML = this.element.innerHTML;
 this.element.innerHTML = this.options.savingText;
 this.element.addClassName(this.options.savingClassName);
 this.element.style.backgroundColor = this._originalBackground;
 this.element.show();
},
triggerCallback: function(cbName, arg) {
 if ('function' == typeof this.options[cbName]) {
   this.options[cbName](this, arg);
 }
},
unregisterListeners: function() {
 $H(this._listeners).each(function(pair) {
   if (!this.options.externalControlOnly)
     this.element.stopObserving(pair.key, pair.value);
   if (this.options.externalControl)
     this.options.externalControl.stopObserving(pair.key, pair.value);
 }.bind(this));
},
wrapUp: function(transport) {
 this.leaveEditMode();
 // Can't use triggerCallback due to backward compatibility: requires
 // binding + direct element
 this._boundComplete(transport, this.element);
}
});

Object.extend(Ajax.InPlaceEditor.prototype, {
dispose: Ajax.InPlaceEditor.prototype.destroy
});

Ajax.InPlaceCollectionEditor = Class.create(Ajax.InPlaceEditor, {
initialize: function($super, element, url, options) {
 this._extraDefaultOptions = Ajax.InPlaceCollectionEditor.DefaultOptions;
 $super(element, url, options);
},

createEditField: function() {
 var list = document.createElement('select');
 list.name = this.options.paramName;
 list.size = 1;
 this._controls.editor = list;
 this._collection = this.options.collection || [];
 if (this.options.loadCollectionURL)
   this.loadCollection();
 else
   this.checkForExternalText();
 this._form.appendChild(this._controls.editor);
},

loadCollection: function() {
 this._form.addClassName(this.options.loadingClassName);
 this.showLoadingText(this.options.loadingCollectionText);
 var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
 Object.extend(options, {
   parameters: 'editorId=' + encodeURIComponent(this.element.id),
   onComplete: Prototype.emptyFunction,
   onSuccess: function(transport) {
     var js = transport.responseText.strip();
     if (!/^\[.*\]$/.test(js)) // TODO: improve sanity check
       throw('Server returned an invalid collection representation.');
     this._collection = eval(js);
     this.checkForExternalText();
   }.bind(this),
   onFailure: this.onFailure
 });
 new Ajax.Request(this.options.loadCollectionURL, options);
},

showLoadingText: function(text) {
 this._controls.editor.disabled = true;
 var tempOption = this._controls.editor.firstChild;
 if (!tempOption) {
   tempOption = document.createElement('option');
   tempOption.value = '';
   this._controls.editor.appendChild(tempOption);
   tempOption.selected = true;
 }
 tempOption.update((text || '').stripScripts().stripTags());
},

checkForExternalText: function() {
 this._text = this.getText();
 if (this.options.loadTextURL)
   this.loadExternalText();
 else
   this.buildOptionList();
},

loadExternalText: function() {
 this.showLoadingText(this.options.loadingText);
 var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
 Object.extend(options, {
   parameters: 'editorId=' + encodeURIComponent(this.element.id),
   onComplete: Prototype.emptyFunction,
   onSuccess: function(transport) {
     this._text = transport.responseText.strip();
     this.buildOptionList();
   }.bind(this),
   onFailure: this.onFailure
 });
 new Ajax.Request(this.options.loadTextURL, options);
},

buildOptionList: function() {
 this._form.removeClassName(this.options.loadingClassName);
 this._collection = this._collection.map(function(entry) {
   return 2 === entry.length ? entry : [entry, entry].flatten();
 });
 var marker = ('value' in this.options) ? this.options.value : this._text;
 var textFound = this._collection.any(function(entry) {
   return entry[0] == marker;
 }.bind(this));
 this._controls.editor.update('');
 var option;
 this._collection.each(function(entry, index) {
   option = document.createElement('option');
   option.value = entry[0];
   option.selected = textFound ? entry[0] == marker : 0 == index;
   option.appendChild(document.createTextNode(entry[1]));
   this._controls.editor.appendChild(option);
 }.bind(this));
 this._controls.editor.disabled = false;
 Field.scrollFreeActivate(this._controls.editor);
}
});

//**** DEPRECATION LAYER FOR InPlace[Collection]Editor! ****
//**** This only  exists for a while,  in order to  let ****
//**** users adapt to  the new API.  Read up on the new ****
//**** API and convert your code to it ASAP!            ****

Ajax.InPlaceEditor.prototype.initialize.dealWithDeprecatedOptions = function(options) {
if (!options) return;
function fallback(name, expr) {
 if (name in options || expr === undefined) return;
 options[name] = expr;
};
fallback('cancelControl', (options.cancelLink ? 'link' : (options.cancelButton ? 'button' :
 options.cancelLink == options.cancelButton == false ? false : undefined)));
fallback('okControl', (options.okLink ? 'link' : (options.okButton ? 'button' :
 options.okLink == options.okButton == false ? false : undefined)));
fallback('highlightColor', options.highlightcolor);
fallback('highlightEndColor', options.highlightendcolor);
};

Object.extend(Ajax.InPlaceEditor, {
DefaultOptions: {
 ajaxOptions: { },
 autoRows: 3,                                // Use when multi-line w/ rows == 1
 cancelControl: 'link',                      // 'link'|'button'|false
 cancelText: 'cancel',
 clickToEditText: 'Click to edit',
 externalControl: null,                      // id|elt
 externalControlOnly: false,
 fieldPostCreation: 'activate',              // 'activate'|'focus'|false
 formClassName: 'inplaceeditor-form',
 formId: null,                               // id|elt
 highlightColor: '#ffff99',
 highlightEndColor: '#ffffff',
 hoverClassName: '',
 htmlResponse: true,
 loadingClassName: 'inplaceeditor-loading',
 loadingText: 'Loading...',
 okControl: 'button',                        // 'link'|'button'|false
 okText: 'ok',
 paramName: 'value',
 rows: 1,                                    // If 1 and multi-line, uses autoRows
 savingClassName: 'inplaceeditor-saving',
 savingText: 'Saving...',
 size: 0,
 stripLoadedTextTags: false,
 submitOnBlur: false,
 textAfterControls: '',
 textBeforeControls: '',
 textBetweenControls: ''
},
DefaultCallbacks: {
 callback: function(form) {
   return Form.serialize(form);
 },
 onComplete: function(transport, element) {
   // For backward compatibility, this one is bound to the IPE, and passes
   // the element directly.  It was too often customized, so we don't break it.
   new Effect.Highlight(element, {
     startcolor: this.options.highlightColor, keepBackgroundImage: true });
 },
 onEnterEditMode: null,
 onEnterHover: function(ipe) {
   ipe.element.style.backgroundColor = ipe.options.highlightColor;
   if (ipe._effect)
     ipe._effect.cancel();
 },
 onFailure: function(transport, ipe) {
   alert('Error communication with the server: ' + transport.responseText.stripTags());
 },
 onFormCustomization: null, // Takes the IPE and its generated form, after editor, before controls.
 onLeaveEditMode: null,
 onLeaveHover: function(ipe) {
   ipe._effect = new Effect.Highlight(ipe.element, {
     startcolor: ipe.options.highlightColor, endcolor: ipe.options.highlightEndColor,
     restorecolor: ipe._originalBackground, keepBackgroundImage: true
   });
 }
},
Listeners: {
 click: 'enterEditMode',
 keydown: 'checkForEscapeOrReturn',
 mouseover: 'enterHover',
 mouseout: 'leaveHover'
}
});

Ajax.InPlaceCollectionEditor.DefaultOptions = {
loadingCollectionText: 'Loading options...'
};

//Delayed observer, like Form.Element.Observer,
//but waits for delay after last key input
//Ideal for live-search fields

Form.Element.DelayedObserver = Class.create({
initialize: function(element, delay, callback) {
 this.delay     = delay || 0.5;
 this.element   = $(element);
 this.callback  = callback;
 this.timer     = null;
 this.lastValue = $F(this.element);
 Event.observe(this.element,'keyup',this.delayedListener.bindAsEventListener(this));
},
delayedListener: function(event) {
 if(this.lastValue == $F(this.element)) return;
 if(this.timer) clearTimeout(this.timer);
 this.timer = setTimeout(this.onTimerEvent.bind(this), this.delay * 1000);
 this.lastValue = $F(this.element);
},
onTimerEvent: function() {
 this.timer = null;
 this.callback(this.element, $F(this.element));
}
});

//script.aculo.us slider.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

//Copyright (c) 2005-2008 Marty Haught, Thomas Fuchs
//
//script.aculo.us is freely distributable under the terms of an MIT-style license.
//For details, see the script.aculo.us web site: http://script.aculo.us/

if (!Control) var Control = { };

//options:
//axis: 'vertical', or 'horizontal' (default)
//
//callbacks:
//onChange(value)
//onSlide(value)
Control.Slider = Class.create({
initialize: function(handle, track, options) {
 var slider = this;

 if (Object.isArray(handle)) {
   this.handles = handle.collect( function(e) { return $(e) });
 } else {
   this.handles = [$(handle)];
 }

 this.track   = $(track);
 this.options = options || { };

 this.axis      = this.options.axis || 'horizontal';
 this.increment = this.options.increment || 1;
 this.step      = parseInt(this.options.step || '1');
 this.range     = this.options.range || $R(0,1);

 this.value     = 0; // assure backwards compat
 this.values    = this.handles.map( function() { return 0 });
 this.spans     = this.options.spans ? this.options.spans.map(function(s){ return $(s) }) : false;
 this.options.startSpan = $(this.options.startSpan || null);
 this.options.endSpan   = $(this.options.endSpan || null);

 this.restricted = this.options.restricted || false;

 this.maximum   = this.options.maximum || this.range.end;
 this.minimum   = this.options.minimum || this.range.start;

 // Will be used to align the handle onto the track, if necessary
 this.alignX = parseInt(this.options.alignX || '0');
 this.alignY = parseInt(this.options.alignY || '0');

 this.trackLength = this.maximumOffset() - this.minimumOffset();

 this.handleLength = this.isVertical() ?
   (this.handles[0].offsetHeight != 0 ?
     this.handles[0].offsetHeight : this.handles[0].style.height.replace(/px$/,"")) :
   (this.handles[0].offsetWidth != 0 ? this.handles[0].offsetWidth :
     this.handles[0].style.width.replace(/px$/,""));

 this.active   = false;
 this.dragging = false;
 this.disabled = false;

 if (this.options.disabled) this.setDisabled();

 // Allowed values array
 this.allowedValues = this.options.values ? this.options.values.sortBy(Prototype.K) : false;
 if (this.allowedValues) {
   this.minimum = this.allowedValues.min();
   this.maximum = this.allowedValues.max();
 }

 this.eventMouseDown = this.startDrag.bindAsEventListener(this);
 this.eventMouseUp   = this.endDrag.bindAsEventListener(this);
 this.eventMouseMove = this.update.bindAsEventListener(this);

 // Initialize handles in reverse (make sure first handle is active)
 this.handles.each( function(h,i) {
   i = slider.handles.length-1-i;
   slider.setValue(parseFloat(
     (Object.isArray(slider.options.sliderValue) ?
       slider.options.sliderValue[i] : slider.options.sliderValue) ||
      slider.range.start), i);
   h.makePositioned().observe("mousedown", slider.eventMouseDown);
 });

 this.track.observe("mousedown", this.eventMouseDown);
 document.observe("mouseup", this.eventMouseUp);
 document.observe("mousemove", this.eventMouseMove);

 this.initialized = true;
},
dispose: function() {
 var slider = this;
 Event.stopObserving(this.track, "mousedown", this.eventMouseDown);
 Event.stopObserving(document, "mouseup", this.eventMouseUp);
 Event.stopObserving(document, "mousemove", this.eventMouseMove);
 this.handles.each( function(h) {
   Event.stopObserving(h, "mousedown", slider.eventMouseDown);
 });
},
setDisabled: function(){
 this.disabled = true;
},
setEnabled: function(){
 this.disabled = false;
},
getNearestValue: function(value){
 if (this.allowedValues){
   if (value >= this.allowedValues.max()) return(this.allowedValues.max());
   if (value <= this.allowedValues.min()) return(this.allowedValues.min());

   var offset = Math.abs(this.allowedValues[0] - value);
   var newValue = this.allowedValues[0];
   this.allowedValues.each( function(v) {
     var currentOffset = Math.abs(v - value);
     if (currentOffset <= offset){
       newValue = v;
       offset = currentOffset;
     }
   });
   return newValue;
 }
 if (value > this.range.end) return this.range.end;
 if (value < this.range.start) return this.range.start;
 return value;
},
setValue: function(sliderValue, handleIdx){
 if (!this.active) {
   this.activeHandleIdx = handleIdx || 0;
   this.activeHandle    = this.handles[this.activeHandleIdx];
   this.updateStyles();
 }
 handleIdx = handleIdx || this.activeHandleIdx || 0;
 if (this.initialized && this.restricted) {
   if ((handleIdx>0) && (sliderValue<this.values[handleIdx-1]))
     sliderValue = this.values[handleIdx-1];
   if ((handleIdx < (this.handles.length-1)) && (sliderValue>this.values[handleIdx+1]))
     sliderValue = this.values[handleIdx+1];
 }
 sliderValue = this.getNearestValue(sliderValue);
 this.values[handleIdx] = sliderValue;
 this.value = this.values[0]; // assure backwards compat

 this.handles[handleIdx].style[this.isVertical() ? 'top' : 'left'] =
   this.translateToPx(sliderValue);

 this.drawSpans();
 if (!this.dragging || !this.event) this.updateFinished();
},
setValueBy: function(delta, handleIdx) {
 this.setValue(this.values[handleIdx || this.activeHandleIdx || 0] + delta,
   handleIdx || this.activeHandleIdx || 0);
},
translateToPx: function(value) {
 return Math.round(
   ((this.trackLength-this.handleLength)/(this.range.end-this.range.start)) *
   (value - this.range.start)) + "px";
},
translateToValue: function(offset) {
 return ((offset/(this.trackLength-this.handleLength) *
   (this.range.end-this.range.start)) + this.range.start);
},
getRange: function(range) {
 var v = this.values.sortBy(Prototype.K);
 range = range || 0;
 return $R(v[range],v[range+1]);
},
minimumOffset: function(){
 return(this.isVertical() ? this.alignY : this.alignX);
},
maximumOffset: function(){
 return(this.isVertical() ?
   (this.track.offsetHeight != 0 ? this.track.offsetHeight :
     this.track.style.height.replace(/px$/,"")) - this.alignY :
   (this.track.offsetWidth != 0 ? this.track.offsetWidth :
     this.track.style.width.replace(/px$/,"")) - this.alignX);
},
isVertical:  function(){
 return (this.axis == 'vertical');
},
drawSpans: function() {
 var slider = this;
 if (this.spans)
   $R(0, this.spans.length-1).each(function(r) { slider.setSpan(slider.spans[r], slider.getRange(r)) });
 if (this.options.startSpan)
   this.setSpan(this.options.startSpan,
     $R(0, this.values.length>1 ? this.getRange(0).min() : this.value ));
 if (this.options.endSpan)
   this.setSpan(this.options.endSpan,
     $R(this.values.length>1 ? this.getRange(this.spans.length-1).max() : this.value, this.maximum));
},
setSpan: function(span, range) {
 if (this.isVertical()) {
   span.style.top = this.translateToPx(range.start);
   span.style.height = this.translateToPx(range.end - range.start + this.range.start);
 } else {
   span.style.left = this.translateToPx(range.start);
   span.style.width = this.translateToPx(range.end - range.start + this.range.start);
 }
},
updateStyles: function() {
 this.handles.each( function(h){ Element.removeClassName(h, 'selected') });
 Element.addClassName(this.activeHandle, 'selected');
},
startDrag: function(event) {
 if (Event.isLeftClick(event)) {
   if (!this.disabled){
     this.active = true;

     var handle = Event.element(event);
     var pointer  = [Event.pointerX(event), Event.pointerY(event)];
     var track = handle;
     if (track==this.track) {
       var offsets  = Position.cumulativeOffset(this.track);
       this.event = event;
       this.setValue(this.translateToValue(
        (this.isVertical() ? pointer[1]-offsets[1] : pointer[0]-offsets[0])-(this.handleLength/2)
       ));
       var offsets  = Position.cumulativeOffset(this.activeHandle);
       this.offsetX = (pointer[0] - offsets[0]);
       this.offsetY = (pointer[1] - offsets[1]);
     } else {
       // find the handle (prevents issues with Safari)
       while((this.handles.indexOf(handle) == -1) && handle.parentNode)
         handle = handle.parentNode;

       if (this.handles.indexOf(handle)!=-1) {
         this.activeHandle    = handle;
         this.activeHandleIdx = this.handles.indexOf(this.activeHandle);
         this.updateStyles();

         var offsets  = Position.cumulativeOffset(this.activeHandle);
         this.offsetX = (pointer[0] - offsets[0]);
         this.offsetY = (pointer[1] - offsets[1]);
       }
     }
   }
   Event.stop(event);
 }
},
update: function(event) {
if (this.active) {
   if (!this.dragging) this.dragging = true;
   this.draw(event);
   if (Prototype.Browser.WebKit) window.scrollBy(0,0);
   Event.stop(event);
}
},
draw: function(event) {
 var pointer = [Event.pointerX(event), Event.pointerY(event)];
 var offsets = Position.cumulativeOffset(this.track);
 pointer[0] -= this.offsetX + offsets[0];
 pointer[1] -= this.offsetY + offsets[1];
 this.event = event;
 this.setValue(this.translateToValue( this.isVertical() ? pointer[1] : pointer[0] ));
 if (this.initialized && this.options.onSlide)
   this.options.onSlide(this.values.length>1 ? this.values : this.value, this);
},
endDrag: function(event) {
 if (this.active && this.dragging) {
   this.finishDrag(event, true);
   Event.stop(event);
 }
 this.active = false;
 this.dragging = false;
},
finishDrag: function(event, success) {
 this.active = false;
 this.dragging = false;
 this.updateFinished();
},
updateFinished: function() {
 if (this.initialized && this.options.onChange)
   this.options.onChange(this.values.length>1 ? this.values : this.value, this);
 this.event = null;
}
});

//script.aculo.us sound.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

//Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//
//Based on code created by Jules Gravinese (http://www.webveteran.com/)
//
//script.aculo.us is freely distributable under the terms of an MIT-style license.
//For details, see the script.aculo.us web site: http://script.aculo.us/

Sound = {
tracks: {},
_enabled: true,
template:
 new Template('<embed style="height:0" id="sound_#{track}_#{id}" src="#{url}" loop="false" autostart="true" hidden="true"/>'),
enable: function(){
 Sound._enabled = true;
},
disable: function(){
 Sound._enabled = false;
},
play: function(url){
 if(!Sound._enabled) return;
 var options = Object.extend({
   track: 'global', url: url, replace: false
 }, arguments[1] || {});

 if(options.replace && this.tracks[options.track]) {
   $R(0, this.tracks[options.track].id).each(function(id){
     var sound = $('sound_'+options.track+'_'+id);
     sound.Stop && sound.Stop();
     sound.remove();
   });
   this.tracks[options.track] = null;
 }

 if(!this.tracks[options.track])
   this.tracks[options.track] = { id: 0 };
 else
   this.tracks[options.track].id++;

 options.id = this.tracks[options.track].id;
 $$('body')[0].insert(
   Prototype.Browser.IE ? new Element('bgsound',{
     id: 'sound_'+options.track+'_'+options.id,
     src: options.url, loop: 1, autostart: true
   }) : Sound.template.evaluate(options));
}
};

if(Prototype.Browser.Gecko && navigator.userAgent.indexOf("Win") > 0){
if(navigator.plugins && $A(navigator.plugins).detect(function(p){ return p.name.indexOf('QuickTime') != -1 }))
 Sound.template = new Template('<object id="sound_#{track}_#{id}" width="0" height="0" type="audio/mpeg" data="#{url}"/>');
else
 Sound.play = function(){};
}/*! SWFObject v2.1 <http://code.google.com/p/swfobject/>
	Copyright (c) 2007-2008 Geoff Stearns, Michael Williams, and Bobby van der Sluis
	This software is released under the MIT License <http://www.opensource.org/licenses/mit-license.php>
*/

var swfobject = function() {
	
	var UNDEF = "undefined",
		OBJECT = "object",
		SHOCKWAVE_FLASH = "Shockwave Flash",
		SHOCKWAVE_FLASH_AX = "ShockwaveFlash.ShockwaveFlash",
		FLASH_MIME_TYPE = "application/x-shockwave-flash",
		EXPRESS_INSTALL_ID = "SWFObjectExprInst",
		
		win = window,
		doc = document,
		nav = navigator,
		
		domLoadFnArr = [],
		regObjArr = [],
		objIdArr = [],
		listenersArr = [],
		script,
		timer = null,
		storedAltContent = null,
		storedAltContentId = null,
		isDomLoaded = false,
		isExpressInstallActive = false;
	
	/* Centralized function for browser feature detection
		- Proprietary feature detection (conditional compiling) is used to detect Internet Explorer's features
		- User agent string detection is only used when no alternative is possible
		- Is executed directly for optimal performance
	*/	
	var ua = function() {
		var w3cdom = typeof doc.getElementById != UNDEF && typeof doc.getElementsByTagName != UNDEF && typeof doc.createElement != UNDEF,
			playerVersion = [0,0,0],
			d = null;
		if (typeof nav.plugins != UNDEF && typeof nav.plugins[SHOCKWAVE_FLASH] == OBJECT) {
			d = nav.plugins[SHOCKWAVE_FLASH].description;
			if (d && !(typeof nav.mimeTypes != UNDEF && nav.mimeTypes[FLASH_MIME_TYPE] && !nav.mimeTypes[FLASH_MIME_TYPE].enabledPlugin)) { // navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin indicates whether plug-ins are enabled or disabled in Safari 3+
				d = d.replace(/^.*\s+(\S+\s+\S+$)/, "$1");
				playerVersion[0] = parseInt(d.replace(/^(.*)\..*$/, "$1"), 10);
				playerVersion[1] = parseInt(d.replace(/^.*\.(.*)\s.*$/, "$1"), 10);
				playerVersion[2] = /r/.test(d) ? parseInt(d.replace(/^.*r(.*)$/, "$1"), 10) : 0;
			}
		}
		else if (typeof win.ActiveXObject != UNDEF) {
			var a = null, fp6Crash = false;
			try {
				a = new ActiveXObject(SHOCKWAVE_FLASH_AX + ".7");
			}
			catch(e) {
				try { 
					a = new ActiveXObject(SHOCKWAVE_FLASH_AX + ".6");
					playerVersion = [6,0,21];
					a.AllowScriptAccess = "always";	 // Introduced in fp6.0.47
				}
				catch(e) {
					if (playerVersion[0] == 6) {
						fp6Crash = true;
					}
				}
				if (!fp6Crash) {
					try {
						a = new ActiveXObject(SHOCKWAVE_FLASH_AX);
					}
					catch(e) {}
				}
			}
			if (!fp6Crash && a) { // a will return null when ActiveX is disabled
				try {
					d = a.GetVariable("$version");	// Will crash fp6.0.21/23/29
					if (d) {
						d = d.split(" ")[1].split(",");
						playerVersion = [parseInt(d[0], 10), parseInt(d[1], 10), parseInt(d[2], 10)];
					}
				}
				catch(e) {}
			}
		}
		var u = nav.userAgent.toLowerCase(),
			p = nav.platform.toLowerCase(),
			webkit = /webkit/.test(u) ? parseFloat(u.replace(/^.*webkit\/(\d+(\.\d+)?).*$/, "$1")) : false, // returns either the webkit version or false if not webkit
			ie = false,
			windows = p ? /win/.test(p) : /win/.test(u),
			mac = p ? /mac/.test(p) : /mac/.test(u);
		/*@cc_on
			ie = true;
			@if (@_win32)
				windows = true;
			@elif (@_mac)
				mac = true;
			@end
		@*/
		return { w3cdom:w3cdom, pv:playerVersion, webkit:webkit, ie:ie, win:windows, mac:mac };
	}();

	/* Cross-browser onDomLoad
		- Based on Dean Edwards' solution: http://dean.edwards.name/weblog/2006/06/again/
		- Will fire an event as soon as the DOM of a page is loaded (supported by Gecko based browsers - like Firefox -, IE, Opera9+, Safari)
	*/ 
	var onDomLoad = function() {
		if (!ua.w3cdom) {
			return;
		}
		addDomLoadEvent(main);
		if (ua.ie && ua.win) {
			try {	 // Avoid a possible Operation Aborted error
				doc.write("<scr" + "ipt id=__ie_ondomload defer=true src=//:></scr" + "ipt>"); // String is split into pieces to avoid Norton AV to add code that can cause errors 
				script = getElementById("__ie_ondomload");
				if (script) {
					addListener(script, "onreadystatechange", checkReadyState);
				}
			}
			catch(e) {}
		}
		if (ua.webkit && typeof doc.readyState != UNDEF) {
			timer = setInterval(function() { if (/loaded|complete/.test(doc.readyState)) { callDomLoadFunctions(); }}, 10);
		}
		if (typeof doc.addEventListener != UNDEF) {
			doc.addEventListener("DOMContentLoaded", callDomLoadFunctions, null);
		}
		addLoadEvent(callDomLoadFunctions);
	}();
	
	function checkReadyState() {
		if (script.readyState == "complete") {
			script.parentNode.removeChild(script);
			callDomLoadFunctions();
		}
	}
	
	function callDomLoadFunctions() {
		if (isDomLoaded) {
			return;
		}
		if (ua.ie && ua.win) { // Test if we can really add elements to the DOM; we don't want to fire it too early
			var s = createElement("span");
			try { // Avoid a possible Operation Aborted error
				var t = doc.getElementsByTagName("body")[0].appendChild(s);
				t.parentNode.removeChild(t);
			}
			catch (e) {
				return;
			}
		}
		isDomLoaded = true;
		if (timer) {
			clearInterval(timer);
			timer = null;
		}
		var dl = domLoadFnArr.length;
		for (var i = 0; i < dl; i++) {
			domLoadFnArr[i]();
		}
	}
	
	function addDomLoadEvent(fn) {
		if (isDomLoaded) {
			fn();
		}
		else { 
			domLoadFnArr[domLoadFnArr.length] = fn; // Array.push() is only available in IE5.5+
		}
	}
	
	/* Cross-browser onload
		- Based on James Edwards' solution: http://brothercake.com/site/resources/scripts/onload/
		- Will fire an event as soon as a web page including all of its assets are loaded 
	 */
	function addLoadEvent(fn) {
		if (typeof win.addEventListener != UNDEF) {
			win.addEventListener("load", fn, false);
		}
		else if (typeof doc.addEventListener != UNDEF) {
			doc.addEventListener("load", fn, false);
		}
		else if (typeof win.attachEvent != UNDEF) {
			addListener(win, "onload", fn);
		}
		else if (typeof win.onload == "function") {
			var fnOld = win.onload;
			win.onload = function() {
				fnOld();
				fn();
			};
		}
		else {
			win.onload = fn;
		}
	}
	
	/* Main function
		- Will preferably execute onDomLoad, otherwise onload (as a fallback)
	*/
	function main() { // Static publishing only
		var rl = regObjArr.length;
		for (var i = 0; i < rl; i++) { // For each registered object element
			var id = regObjArr[i].id;
			if (ua.pv[0] > 0) {
				var obj = getElementById(id);
				if (obj) {
					regObjArr[i].width = obj.getAttribute("width") ? obj.getAttribute("width") : "0";
					regObjArr[i].height = obj.getAttribute("height") ? obj.getAttribute("height") : "0";
					if (hasPlayerVersion(regObjArr[i].swfVersion)) { // Flash plug-in version >= Flash content version: Houston, we have a match!
						if (ua.webkit && ua.webkit < 312) { // Older webkit engines ignore the object element's nested param elements
							fixParams(obj);
						}
						setVisibility(id, true);
					}
					else if (regObjArr[i].expressInstall && !isExpressInstallActive && hasPlayerVersion("6.0.65") && (ua.win || ua.mac)) { // Show the Adobe Express Install dialog if set by the web page author and if supported (fp6.0.65+ on Win/Mac OS only)
						showExpressInstall(regObjArr[i]);
					}
					else { // Flash plug-in and Flash content version mismatch: display alternative content instead of Flash content
						displayAltContent(obj);
					}
				}
			}
			else {	// If no fp is installed, we let the object element do its job (show alternative content)
				setVisibility(id, true);
			}
		}
	}
	
	/* Fix nested param elements, which are ignored by older webkit engines
		- This includes Safari up to and including version 1.2.2 on Mac OS 10.3
		- Fall back to the proprietary embed element
	*/
	function fixParams(obj) {
		var nestedObj = obj.getElementsByTagName(OBJECT)[0];
		if (nestedObj) {
			var e = createElement("embed"), a = nestedObj.attributes;
			if (a) {
				var al = a.length;
				for (var i = 0; i < al; i++) {
					if (a[i].nodeName == "DATA") {
						e.setAttribute("src", a[i].nodeValue);
					}
					else {
						e.setAttribute(a[i].nodeName, a[i].nodeValue);
					}
				}
			}
			var c = nestedObj.childNodes;
			if (c) {
				var cl = c.length;
				for (var j = 0; j < cl; j++) {
					if (c[j].nodeType == 1 && c[j].nodeName == "PARAM") {
						e.setAttribute(c[j].getAttribute("name"), c[j].getAttribute("value"));
					}
				}
			}
			obj.parentNode.replaceChild(e, obj);
		}
	}
	
	/* Show the Adobe Express Install dialog
		- Reference: http://www.adobe.com/cfusion/knowledgebase/index.cfm?id=6a253b75
	*/
	function showExpressInstall(regObj) {
		isExpressInstallActive = true;
		var obj = getElementById(regObj.id);
		if (obj) {
			if (regObj.altContentId) {
				var ac = getElementById(regObj.altContentId);
				if (ac) {
					storedAltContent = ac;
					storedAltContentId = regObj.altContentId;
				}
			}
			else {
				storedAltContent = abstractAltContent(obj);
			}
			if (!(/%$/.test(regObj.width)) && parseInt(regObj.width, 10) < 310) {
				regObj.width = "310";
			}
			if (!(/%$/.test(regObj.height)) && parseInt(regObj.height, 10) < 137) {
				regObj.height = "137";
			}
			doc.title = doc.title.slice(0, 47) + " - Flash Player Installation";
			var pt = ua.ie && ua.win ? "ActiveX" : "PlugIn",
				dt = doc.title,
				fv = "MMredirectURL=" + win.location + "&MMplayerType=" + pt + "&MMdoctitle=" + dt,
				replaceId = regObj.id;
			// For IE when a SWF is loading (AND: not available in cache) wait for the onload event to fire to remove the original object element
			// In IE you cannot properly cancel a loading SWF file without breaking browser load references, also obj.onreadystatechange doesn't work
			if (ua.ie && ua.win && obj.readyState != 4) {
				var newObj = createElement("div");
				replaceId += "SWFObjectNew";
				newObj.setAttribute("id", replaceId);
				obj.parentNode.insertBefore(newObj, obj); // Insert placeholder div that will be replaced by the object element that loads expressinstall.swf
				obj.style.display = "none";
				var fn = function() {
					obj.parentNode.removeChild(obj);
				};
				addListener(win, "onload", fn);
			}
			createSWF({ data:regObj.expressInstall, id:EXPRESS_INSTALL_ID, width:regObj.width, height:regObj.height }, { flashvars:fv }, replaceId);
		}
	}
	
	/* Functions to abstract and display alternative content
	*/
	function displayAltContent(obj) {
		if (ua.ie && ua.win && obj.readyState != 4) {
			// For IE when a SWF is loading (AND: not available in cache) wait for the onload event to fire to remove the original object element
			// In IE you cannot properly cancel a loading SWF file without breaking browser load references, also obj.onreadystatechange doesn't work
			var el = createElement("div");
			obj.parentNode.insertBefore(el, obj); // Insert placeholder div that will be replaced by the alternative content
			el.parentNode.replaceChild(abstractAltContent(obj), el);
			obj.style.display = "none";
			var fn = function() {
				obj.parentNode.removeChild(obj);
			};
			addListener(win, "onload", fn);
		}
		else {
			obj.parentNode.replaceChild(abstractAltContent(obj), obj);
		}
	} 

	function abstractAltContent(obj) {
		var ac = createElement("div");
		if (ua.win && ua.ie) {
			ac.innerHTML = obj.innerHTML;
		}
		else {
			var nestedObj = obj.getElementsByTagName(OBJECT)[0];
			if (nestedObj) {
				var c = nestedObj.childNodes;
				if (c) {
					var cl = c.length;
					for (var i = 0; i < cl; i++) {
						if (!(c[i].nodeType == 1 && c[i].nodeName == "PARAM") && !(c[i].nodeType == 8)) {
							ac.appendChild(c[i].cloneNode(true));
						}
					}
				}
			}
		}
		return ac;
	}
	
	/* Cross-browser dynamic SWF creation
	*/
	function createSWF(attObj, parObj, id) {
		var r, el = getElementById(id);
		if (el) {
			if (typeof attObj.id == UNDEF) { // if no 'id' is defined for the object element, it will inherit the 'id' from the alternative content
				attObj.id = id;
			}
			if (ua.ie && ua.win) { // IE, the object element and W3C DOM methods do not combine: fall back to outerHTML
				var att = "";
				for (var i in attObj) {
					if (attObj[i] != Object.prototype[i]) { // Filter out prototype additions from other potential libraries, like Object.prototype.toJSONString = function() {}
						if (i.toLowerCase() == "data") {
							parObj.movie = attObj[i];
						}
						else if (i.toLowerCase() == "styleclass") { // 'class' is an ECMA4 reserved keyword
							att += ' class="' + attObj[i] + '"';
						}
						else if (i.toLowerCase() != "classid") {
							att += ' ' + i + '="' + attObj[i] + '"';
						}
					}
				}
				var par = "";
				for (var j in parObj) {
					if (parObj[j] != Object.prototype[j]) { // Filter out prototype additions from other potential libraries
						par += '<param name="' + j + '" value="' + parObj[j] + '" />';
					}
				}
				el.outerHTML = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"' + att + '>' + par + '</object>';
				objIdArr[objIdArr.length] = attObj.id; // Stored to fix object 'leaks' on unload (dynamic publishing only)
				r = getElementById(attObj.id);	
			}
			else if (ua.webkit && ua.webkit < 312) { // Older webkit engines ignore the object element's nested param elements: fall back to the proprietary embed element
				var e = createElement("embed");
				e.setAttribute("type", FLASH_MIME_TYPE);
				for (var k in attObj) {
					if (attObj[k] != Object.prototype[k]) { // Filter out prototype additions from other potential libraries
						if (k.toLowerCase() == "data") {
							e.setAttribute("src", attObj[k]);
						}
						else if (k.toLowerCase() == "styleclass") { // 'class' is an ECMA4 reserved keyword
							e.setAttribute("class", attObj[k]);
						}
						else if (k.toLowerCase() != "classid") { // Filter out IE specific attribute
							e.setAttribute(k, attObj[k]);
						}
					}
				}
				for (var l in parObj) {
					if (parObj[l] != Object.prototype[l]) { // Filter out prototype additions from other potential libraries
						if (l.toLowerCase() != "movie") { // Filter out IE specific param element
							e.setAttribute(l, parObj[l]);
						}
					}
				}
				el.parentNode.replaceChild(e, el);
				r = e;
			}
			else { // Well-behaving browsers
				var o = createElement(OBJECT);
				o.setAttribute("type", FLASH_MIME_TYPE);
				for (var m in attObj) {
					if (attObj[m] != Object.prototype[m]) { // Filter out prototype additions from other potential libraries
						if (m.toLowerCase() == "styleclass") { // 'class' is an ECMA4 reserved keyword
							o.setAttribute("class", attObj[m]);
						}
						else if (m.toLowerCase() != "classid") { // Filter out IE specific attribute
							o.setAttribute(m, attObj[m]);
						}
					}
				}
				for (var n in parObj) {
					if (parObj[n] != Object.prototype[n] && n.toLowerCase() != "movie") { // Filter out prototype additions from other potential libraries and IE specific param element
						createObjParam(o, n, parObj[n]);
					}
				}
				el.parentNode.replaceChild(o, el);
				r = o;
			}
		}
		return r;
	}
	
	function createObjParam(el, pName, pValue) {
		var p = createElement("param");
		p.setAttribute("name", pName);	
		p.setAttribute("value", pValue);
		el.appendChild(p);
	}
	
	/* Cross-browser SWF removal
		- Especially needed to safely and completely remove a SWF in Internet Explorer
	*/
	function removeSWF(id) {
		var obj = getElementById(id);
		if (obj && (obj.nodeName == "OBJECT" || obj.nodeName == "EMBED")) {
			if (ua.ie && ua.win) {
				if (obj.readyState == 4) {
					removeObjectInIE(id);
				}
				else {
					win.attachEvent("onload", function() {
						removeObjectInIE(id);
					});
				}
			}
			else {
				obj.parentNode.removeChild(obj);
			}
		}
	}
	
	function removeObjectInIE(id) {
		var obj = getElementById(id);
		if (obj) {
			for (var i in obj) {
				if (typeof obj[i] == "function") {
					obj[i] = null;
				}
			}
			obj.parentNode.removeChild(obj);
		}
	}
	
	/* Functions to optimize JavaScript compression
	*/
	function getElementById(id) {
		var el = null;
		try {
			el = doc.getElementById(id);
		}
		catch (e) {}
		return el;
	}
	
	function createElement(el) {
		return doc.createElement(el);
	}
	
	/* Updated attachEvent function for Internet Explorer
		- Stores attachEvent information in an Array, so on unload the detachEvent functions can be called to avoid memory leaks
	*/	
	function addListener(target, eventType, fn) {
		target.attachEvent(eventType, fn);
		listenersArr[listenersArr.length] = [target, eventType, fn];
	}
	
	/* Flash Player and SWF content version matching
	*/
	function hasPlayerVersion(rv) {
		var pv = ua.pv, v = rv.split(".");
		v[0] = parseInt(v[0], 10);
		v[1] = parseInt(v[1], 10) || 0; // supports short notation, e.g. "9" instead of "9.0.0"
		v[2] = parseInt(v[2], 10) || 0;
		return (pv[0] > v[0] || (pv[0] == v[0] && pv[1] > v[1]) || (pv[0] == v[0] && pv[1] == v[1] && pv[2] >= v[2])) ? true : false;
	}
	
	/* Cross-browser dynamic CSS creation
		- Based on Bobby van der Sluis' solution: http://www.bobbyvandersluis.com/articles/dynamicCSS.php
	*/	
	function createCSS(sel, decl) {
		if (ua.ie && ua.mac) {
			return;
		}
		var h = doc.getElementsByTagName("head")[0], s = createElement("style");
		s.setAttribute("type", "text/css");
		s.setAttribute("media", "screen");
		if (!(ua.ie && ua.win) && typeof doc.createTextNode != UNDEF) {
			s.appendChild(doc.createTextNode(sel + " {" + decl + "}"));
		}
		h.appendChild(s);
		if (ua.ie && ua.win && typeof doc.styleSheets != UNDEF && doc.styleSheets.length > 0) {
			var ls = doc.styleSheets[doc.styleSheets.length - 1];
			if (typeof ls.addRule == OBJECT) {
				ls.addRule(sel, decl);
			}
		}
	}
	
	function setVisibility(id, isVisible) {
		var v = isVisible ? "visible" : "hidden";
		if (isDomLoaded && getElementById(id)) {
			getElementById(id).style.visibility = v;
		}
		else {
			createCSS("#" + id, "visibility:" + v);
		}
	}

	/* Filter to avoid XSS attacks 
	*/
	function urlEncodeIfNecessary(s) {
		var regex = /[\\\"<>\.;]/;
		var hasBadChars = regex.exec(s) != null;
		return hasBadChars ? encodeURIComponent(s) : s;
	}
	
	/* Release memory to avoid memory leaks caused by closures, fix hanging audio/video threads and force open sockets/NetConnections to disconnect (Internet Explorer only)
	*/
	var cleanup = function() {
		if (ua.ie && ua.win) {
			window.attachEvent("onunload", function() {
				// remove listeners to avoid memory leaks
				var ll = listenersArr.length;
				for (var i = 0; i < ll; i++) {
					listenersArr[i][0].detachEvent(listenersArr[i][1], listenersArr[i][2]);
				}
				// cleanup dynamically embedded objects to fix audio/video threads and force open sockets and NetConnections to disconnect
				var il = objIdArr.length;
				for (var j = 0; j < il; j++) {
					removeSWF(objIdArr[j]);
				}
				// cleanup library's main closures to avoid memory leaks
				for (var k in ua) {
					ua[k] = null;
				}
				ua = null;
				for (var l in swfobject) {
					swfobject[l] = null;
				}
				swfobject = null;
			});
		}
	}();
	
	
	return {
		/* Public API
			- Reference: http://code.google.com/p/swfobject/wiki/SWFObject_2_0_documentation
		*/ 
		registerObject: function(objectIdStr, swfVersionStr, xiSwfUrlStr) {
			if (!ua.w3cdom || !objectIdStr || !swfVersionStr) {
				return;
			}
			var regObj = {};
			regObj.id = objectIdStr;
			regObj.swfVersion = swfVersionStr;
			regObj.expressInstall = xiSwfUrlStr ? xiSwfUrlStr : false;
			regObjArr[regObjArr.length] = regObj;
			setVisibility(objectIdStr, false);
		},
		
		getObjectById: function(objectIdStr) {
			var r = null;
			if (ua.w3cdom) {
				var o = getElementById(objectIdStr);
				if (o) {
					var n = o.getElementsByTagName(OBJECT)[0];
					if (!n || (n && typeof o.SetVariable != UNDEF)) {
							r = o;
					}
					else if (typeof n.SetVariable != UNDEF) {
						r = n;
					}
				}
			}
			return r;
		},
		
		embedSWF: function(swfUrlStr, replaceElemIdStr, widthStr, heightStr, swfVersionStr, xiSwfUrlStr, flashvarsObj, parObj, attObj) {
			if (!ua.w3cdom || !swfUrlStr || !replaceElemIdStr || !widthStr || !heightStr || !swfVersionStr) {
				return;
			}
			widthStr += ""; // Auto-convert to string
			heightStr += "";
			if (hasPlayerVersion(swfVersionStr)) {
				setVisibility(replaceElemIdStr, false);
				var att = {};
				if (attObj && typeof attObj === OBJECT) {
					for (var i in attObj) {
						if (attObj[i] != Object.prototype[i]) { // Filter out prototype additions from other potential libraries
							att[i] = attObj[i];
						}
					}
				}
				att.data = swfUrlStr;
				att.width = widthStr;
				att.height = heightStr;
				var par = {}; 
				if (parObj && typeof parObj === OBJECT) {
					for (var j in parObj) {
						if (parObj[j] != Object.prototype[j]) { // Filter out prototype additions from other potential libraries
							par[j] = parObj[j];
						}
					}
				}
				if (flashvarsObj && typeof flashvarsObj === OBJECT) {
					for (var k in flashvarsObj) {
						if (flashvarsObj[k] != Object.prototype[k]) { // Filter out prototype additions from other potential libraries
							if (typeof par.flashvars != UNDEF) {
								par.flashvars += "&" + k + "=" + flashvarsObj[k];
							}
							else {
								par.flashvars = k + "=" + flashvarsObj[k];
							}
						}
					}
				}
				addDomLoadEvent(function() {
					createSWF(att, par, replaceElemIdStr);
					if (att.id == replaceElemIdStr) {
						setVisibility(replaceElemIdStr, true);
					}
				});
			}
			else if (xiSwfUrlStr && !isExpressInstallActive && hasPlayerVersion("6.0.65") && (ua.win || ua.mac)) {
				isExpressInstallActive = true; // deferred execution
				setVisibility(replaceElemIdStr, false);
				addDomLoadEvent(function() {
					var regObj = {};
					regObj.id = regObj.altContentId = replaceElemIdStr;
					regObj.width = widthStr;
					regObj.height = heightStr;
					regObj.expressInstall = xiSwfUrlStr;
					showExpressInstall(regObj);
				});
			}
		},
		
		getFlashPlayerVersion: function() {
			return { major:ua.pv[0], minor:ua.pv[1], release:ua.pv[2] };
		},
		
		hasFlashPlayerVersion: hasPlayerVersion,
		
		createSWF: function(attObj, parObj, replaceElemIdStr) {
			if (ua.w3cdom) {
				return createSWF(attObj, parObj, replaceElemIdStr);
			}
			else {
				return undefined;
			}
		},
		
		removeSWF: function(objElemIdStr) {
			if (ua.w3cdom) {
				removeSWF(objElemIdStr);
			}
		},
		
		createCSS: function(sel, decl) {
			if (ua.w3cdom) {
				createCSS(sel, decl);
			}
		},
		
		addDomLoadEvent: addDomLoadEvent,
		
		addLoadEvent: addLoadEvent,
		
		getQueryParamValue: function(param) {
			var q = doc.location.search || doc.location.hash;
			if (param == null) {
				return urlEncodeIfNecessary(q);
			}
			if (q) {
				var pairs = q.substring(1).split("&");
				for (var i = 0; i < pairs.length; i++) {
					if (pairs[i].substring(0, pairs[i].indexOf("=")) == param) {
						return urlEncodeIfNecessary(pairs[i].substring((pairs[i].indexOf("=") + 1)));
					}
				}
			}
			return "";
		},
		
		// For internal usage only
		expressInstallCallback: function() {
			if (isExpressInstallActive && storedAltContent) {
				var obj = getElementById(EXPRESS_INSTALL_ID);
				if (obj) {
					obj.parentNode.replaceChild(storedAltContent, obj);
					if (storedAltContentId) {
						setVisibility(storedAltContentId, true);
						if (ua.ie && ua.win) {
							storedAltContent.style.display = "block";
						}
					}
					storedAltContent = null;
					storedAltContentId = null;
					isExpressInstallActive = false;
				}
			} 
		}
	};
}();


/** Code von Spenden-Formularen **/
function checkDonationForm() {
	if (document.Formular.betrag.value == "") {
		alert("Gib bitte den Betrag ein!");
		document.Formular.betrag.focus();
		return false;
	}
	var chkZ = 1;
	for (i = 0; i < document.Formular.betrag.value.length; ++i)
		if (document.Formular.betrag.value.charAt(i) < "0"
				|| document.Formular.betrag.value.charAt(i) > "9")
			chkZ = -1;
	if (chkZ == -1) {
		alert("Gib bitte einen korrekten Betrag ohne Komma ein!");
		document.Formular.betrag.focus();
		return false;
	}
	if (document.Formular.name.value == "") {
		alert("Gib bitte den Namen ein!");
		document.Formular.name.focus();
		return false;
	}
	if (document.Formular.vorname.value == "") {
		alert("Gib bitte den Vornamen ein!");
		document.Formular.vorname.focus();
		return false;
	}
	if (document.Formular.strasse.value == "") {
		alert("Gib bitte die Strasse ein!");
		document.Formular.strasse.focus();
		return false;
	}
	var chkZ = 1;
	for (i = 0; i < document.Formular.plz.value.length; ++i)
		if (document.Formular.plz.value.charAt(i) < "0"
				|| document.Formular.plz.value.charAt(i) > "9")
			chkZ = -1;
	if (chkZ == -1) {
		alert("Gib bitte eine Zahl bei der PLZ ein!");
		document.Formular.plz.focus();
		return false;
	}
	if (document.Formular.plz.value.length < 5) {
		alert("Gib bitte die PLZ korrekt ein!");
		document.Formular.plz.focus();
		return false;
	}
	if (document.Formular.plz.value.length > 5) {
		alert("Gib bitte die PLZ korrekt ein!");
		document.Formular.plz.focus();
		return false;
	}
	if (document.Formular.wohnort.value == "") {
		alert("Gib bitte den Wohnort ein!");
		document.Formular.wohnort.focus();
		return false;
	}
	if (document.Formular.telefon.value == "") {
		alert("Gib bitte die Telefonnummer ein!");
		document.Formular.telefon.focus();
		return false;
	}
	if (document.Formular.mailfrom.value == "") {
		alert("Gib bitte Deine E-Mailadresse ein!");
		document.Formular.mailfrom.focus();
		return false;
	}

	//Mail prüfen auf Gültigkeit
	if (document.Formular.mailfrom.value.indexOf("@") == -1
			|| document.Formular.mailfrom.value.indexOf(".") == -1) {
		alert("Deine E-Mailadresse ist ungültig!");
		document.Formular.mailfrom.focus();
		return false;
	} else {
		if (document.Formular.mailfrom.value.indexOf(".") == document.Formular.mailfrom.value
				.indexOf("@") + 1) {
			alert("Deine E-Mailadresse ist ungültig!");
			document.Formular.mailfrom.focus();
			return false;
		}
	}
}

function changeImage(srccode, imagename) {
	if (document.images) {
		document.images[imagename].src = srccode;
	}
}

function countClick(count_name) {
	var date = new Date();
	var statsImage = new Image ();
	statsImage.src = '/fileadmin/counter/' + count_name + '.gif?r='+date.getTime();
	//document.images["x_click"].src = "/fileadmin/counter/" + count_name + ".gif";
}

/** Code für Imageslider **/
var ImageSlide = Class.create({
	
	//currently active item, count from 0
	currentItem: 0,
	
	/**
	 * Initialize class
	 *
	 * @container: html-parent-container, usually with class fce-imageslide
	 */
	initialize: function(container) {
		this.container  = container;
		this.height = 0;
		this.items = this.container.select('ol>li');
		this.itemCount = this.items.size();
	
		this.items.each(function (item, index) {
			imgTag = item.select('img').first();
			
			//preload all images
			preloadImage = new Image();
			preloadImage.src = imgTag.readAttribute('src');
			
			//search for image with greatest height
			if (Prototype.Browser.IE) {
				regExp = new RegExp(/\<img.*height[^\d]+(\d+)/i);
				match = regExp.exec(item.innerHTML);
				tempHeight = match[1];
			} else {
				tempHeight = imgTag.readAttribute('height');
			}
			this.height = (tempHeight > this.height) ? tempHeight : this.height;
			
			//display first image
			if (index == this.currentItem) {
				item.show();
			}
		}.bind(this));
		this.container.setStyle({height: this.height + 'px'});
		
		//startPeriodicalExecuter
		new PeriodicalExecuter(function(pe) {
			this.nextItem();
		}.bind(this), 5);
	},
	
	nextItem: function () {
		this.currentItem = (this.currentItem + 1) % this.itemCount;
		this.items.each(function (item, index) {
			if (index == this.currentItem) {
				item.appear();
			} else {
				item.fade();
			}
		}.bind(this));
	}	
});

Event.observe(document, "dom:loaded", function (event) {
	$$('.fce-imageslide').each(function (item) {
		new ImageSlide(item);
	});
});

//insert advertisements
Event.observe(window, "load", function (event){
	/*adsTop = $('ads').select('.ads-top').first();
	if (adsTop.innerHTML.blank()) {
			adsTop.insert('<iframe frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="http://image2.ffn.de/fileadmin/advertisement/aol/topbanner.html" class="iframe-ads-top"></iframe>');
	}
	adsRight = $('ads').select('.ads-right').first();
	if (adsRight.innerHTML.blank()) {
		adsRight.insert('<iframe frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="http://image3.ffn.de/fileadmin/advertisement/aol/skyscraper.html" class="iframe-ads-right"></iframe>');
	}*/
});
// JavaScript Document
var TimeMeasurementContainer = Class.create({
	measurements: null,
	output: null,
	name: null,
	debug: false,
	
	initialize: function(name) {
		this.measurements = new Hash();
		this.name = name;
		if(!Prototype.Browser.Opera && !Prototype.Browser.IE && !Prototype.Browser.Gecko) {
			this.debug = false;
		}
	},

	add: function(value) {
		if(!this.debug) {
			return;
		}
		
		if(this.measurements.get(value)) {
			if(value != this.name) {
				this.measurements.get(value).start(true);
			}
			else {
				this.measurements.values().each(function(item) {
					item.start(false);
				});
			}
		}
		else {
			this.measurements.set(value, new TimeMeasurement(value));
			this.measurements.get(value).start(false);
		}
	},
	
	end: function (value) {
		if(!this.debug) {
			return;
		}
		
		if(!value) {
			this.measurements.get(this.name).end();
			this.getResult();
		}
		else {
			var tmp = this.measurements.get(value);
			if(tmp) {
				this.measurements.get(value).end();
			}
			else {
				
			}
		}
	},
	
	getResult: function() {
		this.measurements.get(this.name).end();
		var total = this.measurements.get(this.name).total;
		this.measurements.values().each(function(item) {
			item.getResult(total);
			this.remove(item.name);
		}.bind(this));
	},
	
	remove: function(value) {
		this.measurements.unset(value);
	},
	
	get: function(value) {
		return this.measurements.get(value);
	}
});

var TimeMeasurement = Class.create({
	startTime: null,
	endTime: null,
	total: null,
	running: null,
	output: null,
	activated: null,
	name: null,
	
	initialize: function(name) {
		this.name = name;
		this.activated = 0;
		this.total = 0;
	},

	start: function(keep) {
		if(!keep) {
			this.total = 0;
		}
		
		var dObj = new Date();
		this.startTime = dObj.getTime();
		this.running = true;
		this.activated++;
	},

	end: function() {
		var dObj = new Date();
		this.endTime = dObj.getTime();
		var timeElapsed = this.endTime - this.startTime;
		this.total += timeElapsed;
		this.running = false;
	},
	
	genResult: function() {
		this.output = this.name+' -> ';
		if(!this.startTime && !this.endTime) {
			this.output += 'Measurement not possible';
			return;
		}
		else if(!this.endTime) {
			this.output += 'Measurement not finished yet: ';
			this.end();
		}
		this.output += this.total+' ms';
		this.output += ' activated: '+this.activated+' times';
	},
	
	getResult: function(parentTime) {
		this.genResult();
		
		if(parentTime) {
			if(this.total) {
				var percentage = ((this.total / parentTime) * 100).round();
				this.output += ' -> consumes '+percentage+' % of the whole process';
			}
			else {
				this.output += ' -> consumes 0 % of the whole process';
			}
		}
		
		if(Prototype.Browser.IE) {
			alert(this.output);
		}
		else if(Prototype.Browser.Opera) {
			opera.postError(this.output);
		}
		else {
//			console.log(this.output);
		}
	}
});

var tmc = new TimeMeasurementContainer('Navigator:navigateTo');

var MediaGalleryOverlay = Class.create({
    container: null,
    MGallery: null,
    pane: null,
    opacity: null,
    offset: null,
    objectHeight: null,
    initScroll: null,
    loading: null,
    loaderOpen: null,
    loaderToClose: null,
    
    initialize: function(opacity, MGallery) {
        this.MGallery = MGallery;
        var overlay = new Element('div', {'id':'overlay'});
        var pane = new Element('div', {'id':'pane'});
        $$('body').first().insert(overlay);
        $$('body').first().insert(pane);
        this.container = $('overlay');
        this.container.hide();
        this.pane = $('pane');
        this.pane.hide();
        
        this.loaderOpen = false;
        this.loaderToClose = false;

        this.pane.insert(new Element('div', { 'class':'top' }));
        this.pane.insert(new Element('div', { 'class':'loader', 'style':'display: none' }));
        this.pane.insert(new Element('div', { 'class':'content content-browse', 'style':'display: none' }));
        this.pane.insert(new Element('div', { 'class':'content content-carousel', 'style':'display: none' }));
        this.pane.childElements().last().insert(new Element('div', { 'class':'image-container' }));
        this.pane.childElements().last().childElements().last().insert(new Element('div', { 'class':'slider' }));
        this.pane.insert(new Element('div', { 'class':'content content-detail', 'style':'display: none' }));
        this.pane.insert(new Element('div', { 'class':'bottom', 'style':'display: none' }));
        this.pane.insert(new Element('div', { 'class':'szmcontainer' }));
        
        this.opacity = opacity;
    },
    
    start: function(element) {
        // adjust the size of the overlay
        var pageSize = this.getPageSize();
        this.container.setStyle({ /*width: pageSize[0]+'px', */height: pageSize[1]+'px'});
        
        this.pane.childElements().first().insert({ top: element });

        this.evalObjectHeight();
        // hides all select, object and embed HTML-elements
        $$('select', 'object', 'embed').each( function(element) { element.hide(); } );
        this.adjustScrolling(true);

        this.container.appear({to: this.opacity, afterFinish: function() {
            this.checkScrollOffset();
            if(Prototype.Browser.IE || Prototype.Browser.Opera) {
            	Event.observe(window, 'scroll', this.checkScrollOffset.bindAsEventListener(this));
            }
            else {
            	Event.observe(document, 'scroll', this.checkScrollOffset.bindAsEventListener(this));
            }
            
            this.pane.show();
            this.MGallery.load(true);
        }.bind(this)});
    },
    
    startLoadingIndicator: function() {
    	this.loading = true;
        var loaderContainer = this.pane.select('.loader').first();

        if(!loaderContainer.childElements().length) {
            loaderContainer.insert(new Element('div', { 'class':'loading-image'/*, 'width':'36', 'height':'36'*/ }));
            this.extractCssUrl(loaderContainer.childElements().last().getStyle('backgroundImage'));
            loaderContainer.childElements().last().setStyle({ backgroundImage: this.extractCssUrl(loaderContainer.childElements().last().getStyle('backgroundImage')) });

            loaderContainer.insert(new Element('p').update('Bildergalerie wird geladen'));
            loaderContainer.insert(new Element('p', { 'class':'notice'}).update('zum Abbrechen bitte<br />hier klicken'));
            loaderContainer.setStyle({ padding: (this.MGallery.MGBrowse.maxHeight / 2)+'px' });
            loaderContainer.childElements().last().observe('click', function(event) {
            	if(!this.loading) {
            		return;
            	}
            	
            	this.container.fire('mgl:abort:'+this.MGallery.galleryID);
                this.end();
                this.pane.select('.loader').first().childElements().first().next().update('abgebrochen');
                loaderContainer.fade();
                }.bind(this));
            loaderContainer.childElements().last().setStyle({ cursor: 'pointer' });
        }
        else {
            loaderContainer.childElements().first().next().update('wird geladen');

        	if(loaderContainer.childElements().first().hasClassName('failed')) {
        		loaderContainer.childElements().first().removeClassName('failed');
        		loaderContainer.childElements().first().next().setStyle({ color: '#cccccc;' });
        	}
        }

        loaderContainer.appear({
        	duration: 0.5,
            afterFinish: function() {
        		this.loaderOpen = true;
        		if(this.loaderToClose) {
        			this.endLoadingIndicator();
        		}
            }.bind(this)
        });
    },
    
    hideLoader: function() {
    	if(this.loading) {
    		return;
    	}
        var loader = this.pane.select('.loader').first();
//    	console.log('hideLoader() loader: '+loader.getStyle('display'));
        if(loader.getStyle('display') != 'none') {
        	loader.hide();
        }
    },
    
    endLoadingIndicator: function() {
    	this.loaderOpen = false;
    	this.loading = false;
        var loader = this.pane.select('.loader').first();
        loader.fade({
        	duration: 0.5,
            afterFinish: function() {
        		this.loaderToClose = false;
        		//data.testPreload();
        		this.MGallery.initiate();
            }.bind(this)
        });
    },
    
    loadingFailed: function(response) {
        var loaderContainer = this.pane.select('.loader').first();
        loaderContainer.childElements().first().addClassName('failed');
        loaderContainer.childElements().first().next().setStyle({ backgroundImage: 'url(http://www.ffn.de/typo3onf/ext/fb_mediagallery/res/failed.png")', color: '#cc0000;' });
        loaderContainer.childElements().first().next().update('laden fehlgeschlagen');
    },
    
    evalObjectHeight: function() {
    	this.objectHeight = 0;
    	if(!this.offset) {
            this.offset = document.viewport.getScrollOffsets();
    	}
    	$$('select', 'object', 'embed', 'table').each( function(element) {
    		if(element.offsetTop < this.offset.top) {
    			this.objectHeight += element.getHeight();
    		}
    	}.bind(this) );
    },
    
    adjustScrolling: function(showing) {
    	if(!this.offset) {
            this.offset = document.viewport.getScrollOffsets();
    	}
    	if(showing) {
            $$('body').first().setStyle({ overflow: 'hidden' });
    		window.scrollTo(this.offset.left, this.offset.top-this.objectHeight);
    	}
    	else {
            $$('body').first().setStyle({ overflow: 'auto' });
    		window.scrollTo(this.offset.left, this.offset.top+this.objectHeight);
    	}
    },
    
    checkScrollOffset: function() {
        this.offset = document.viewport.getScrollOffsets();
        this.pane.setStyle({top: this.offset.top+'px'});
    },
    
    end: function() {
        this.pane.hide();
        this.container.fade({afterFinish: function() {
            $$('select', 'object', 'embed', 'table').each( function(element) { element.show(); } );
            
            this.adjustScrolling(false);
        }.bind(this) });
    },
    
    destruct: function() {
        $('overlay').remove();
        $('pane').remove();
    },
    
    resize: function() {
        
    },
    
    //
    //  getPageSize()
    //
    getPageSize: function() {
            
         var xScroll, yScroll;
        
        if (window.innerHeight && window.scrollMaxY) {    
            xScroll = window.innerWidth + window.scrollMaxX;
            yScroll = window.innerHeight + window.scrollMaxY;
        } else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
            xScroll = document.body.scrollWidth;
            yScroll = document.body.scrollHeight;
        } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
            xScroll = document.body.offsetWidth;
            yScroll = document.body.offsetHeight;
        }
        
        var windowWidth, windowHeight;
        
        if (self.innerHeight) {    // all except Explorer
            if(document.documentElement.clientWidth){
                windowWidth = document.documentElement.clientWidth; 
            } else {
                windowWidth = self.innerWidth;
            }
            windowHeight = self.innerHeight;
        } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
            windowWidth = document.documentElement.clientWidth;
            windowHeight = document.documentElement.clientHeight;
        } else if (document.body) { // other Explorers
            windowWidth = document.body.clientWidth;
            windowHeight = document.body.clientHeight;
        }    
        
        // for small pages with total height less then height of the viewport
        if(yScroll < windowHeight){
            pageHeight = windowHeight;
        } else { 
            pageHeight = yScroll;
        }
    
        // for small pages with total width less then width of the viewport
        if(xScroll < windowWidth){    
            pageWidth = xScroll;        
        } else {
            pageWidth = windowWidth;
        }

        return [pageWidth,pageHeight];
    },
    
    extractCssUrl: function(url) {
    	return url.replace(/http:\/\/([a-zA-Z0-9]*)\.([a-zA-Z0-9]*)\.([a-zA-Z0-9]*)\//, '');
    }
});

var MediaGalleryElement = Class.create({
    container: null,
    MGImage: null,
    preloaderImage: 'typo3conf/ext/fb_mediagallery/res/preloader-sized.gif',
    iwidth: null,
    iheight: null,
    itop: null,
    imargin: null,
    onload: null,
    pe: null,
    
    initialize: function(file, width, height) {
        this.MGImage = new MediaGalleryImage(file);
        this.iwidth = width;
        this.iheight = height;
        this.itop = 0;
        this.container = new Element('img', { 'width':this.iwidth, 'height':this.iheight, 'src':this.preloaderImage });
        
        /* has to be written again for IE */
        if (true) { //Prototype.Browser.IE) {
        	this.container.writeAttribute('width', this.iwidth);
        	this.container.writeAttribute('height', this.iheight);
        	this.container.writeAttribute('src', this.preloaderImage);
        }
    },
    
    preload: function() {
    	this.MGImage.preload(function (event) {
    		this.container.src = this.MGImage.getImage();
    		//console.log('loaded ' + this.container.src);
    	}.bindAsEventListener(this));
    },
    
    destruct: function() {
    	if(this.MGImage) {
    		this.MGImage.destruct();
    	}
    },
    
    checkPreload: function() {
    	if(!this.MGImage.loaded()) {
    		this.preload();
    	}
    },
    
    setContainer: function(container) {
        this.container = container;
        this.update();
    },
    
    setOpacity: function(value) {
        this.container.setOpacity(value);
    },
    
    resize: function(width, height, top, minWidth, margin) {
        this.iwidth = width;
        this.iheight = height;
        this.iheight = height;
        this.itop = top;
        this.imargin = ((((width-minWidth) / 2)*-1)+margin);
    },
    
    render: function(margin) {
        this.container.writeAttribute('width', this.iwidth);
        this.container.writeAttribute('height', this.iheight);
        this.container.setStyle({ top: this.itop+'px', zIndex: this.iwidth, margin: '0 '+this.imargin+'px' });
    },
    
    getElement: function() {
        return this.container;
    },
    
    setImage: function(MGImage) {
        this.MGImage.setImage(MGImage);
        if (this.MGImage.loaded() && this.MGImage.available()) {
        	this.container.src = this.MGImage.getImage();
        }
    },

    update: function() {
        this.container.writeAttribute('width', this.iwidth);
        this.container.writeAttribute('height', this.iheight);
        this.drawContext();
    },
    
    drawContext: function() {
    	//console.log(this.MGImage.image.src);
    	//console.log(this.MGImage.image);
    	if(this.MGImage.loaded() && this.MGImage.available()) {
    		this.container.writeAttribute('src', this.MGImage.image.src);
    	}
    },
    
    hide: function() {
        this.container.hide();
    },
    
    show: function() {
        this.container.show();
    }
});

var MediaGalleryImage = Class.create({
    file: null,
    image: null,
    
    initialize: function(file) {
		this.image = new Image();
        this.file = file;
    },
    
    destruct: function() {
    	if(this.image) {
    		if(!this.loaded()) {
	    		//this.image.src = null;
	    		this.image = null;
    		}
    	}
    },
    
    preload: function(onload) {
        if(Object.isFunction(onload)) {
        	this.image.onload = onload;
        }
        if(preloader.checkLoaded(this.file) === true) {
        	this.preloadInit();
        }
        else {
        	preloader.add(this);
        }
    },
    
    preloadInit: function() {
        this.image.src = this.file;
    	onloadChecker.add(this);
    },
    
    loaded: function() {
        if(Object.inspect(this.image) != 'null') {
            return this.image.complete;
        }
        return null;
    },
    
    available: function() {
        if(Object.inspect(this.image) != 'null') {
        	return ![this.image.width, this.image.height].any(function(item){ return !item; });
        }
        return null;
    },
    
    getImage: function() {
        return this.image.src;
    },
    
    setImage: function(MGImage) {
    	if(!MGImage) {
    		/* here is a bug which hasn't been solved yet */
    		/* it occurs when you go on carousel view, navigate to the last picture
    		 * switch to detail view and then switch back
    		 */
    		return;
    	}
    	
    	if (MGImage.loaded()) {
    		this.image.src = MGImage.image.src;
    		this.file = MGImage.file;
    	}
    }
});

var MediaGalleryCounter = Class.create({
	container: null,
	imageCounter: null,
	imageCounterBackground: null,
	imageCounterBackgroundImage: null,
	visible: null,
	parent: null,

	initialize: function(parent) {
		this.parent = parent;
		this.visible = false;
	},
    
    create: function(container) {
		this.container = container;
		
        var imageCounter = new Element('dl', { 'class':'image-counter' });
        var imageCounterBackground = new Element('div', { 'class':'image-counter-background' });
        
        this.container.insert(imageCounter);
        this.container.insert(imageCounterBackground);
        this.container.select('.image-counter').first().insert(new Element('dt', { 'class':'counter-index' }));
        this.container.select('.image-counter').first().insert(new Element('dd', { 'class':'counter-length' }));
        this.container.select('.image-counter-background').first().setOpacity(0.5);
        this.container.select('.image-counter-background').first().insert(new Element('img', { 'src':'typo3conf/ext/fb_mediagallery/res/counter-background.png' }));

        this.container.select('.image-counter').first().hide();
        this.container.select('.image-counter-background').first().hide();
        
        this.imageCounter = this.container.select('.image-counter').first();
        this.imageCounterBackground = this.container.select('.image-counter-background').first();
        this.imageCounterBackgroundImage = this.container.select('.image-counter-background img').first();
        this.hide();
        this.show();

//        document.observe('staticMediaGalleryImage:allLoaded', this.positionCounter());
    },
    
    updateImageCount: function() {
    	if(!this.container) {
    		return;
    	}
    	if(this.parent.images){
    		if(this.visible) {
    			this.show();
    		}
    		this.container.select('.image-counter-background').first().show();
            this.container.select('.image-counter .counter-index').first().update(this.parent.index+1);
            this.container.select('.image-counter .counter-length').first().update(this.parent.images.length);
    	}
    	else {
    		this.hide();
    	}
    	//this.positionCounter();
    },
    
    positionCounter: function() {
    	var imageCounterDim = this.imageCounter.getDimensions();
    	var imageCounterHeight = imageCounterDim.height + this.container.select('.counter-index').first().getHeight();
    	var containerDim = this.container.getDimensions();
    	var left = (containerDim.width - this.parent.maxWidth) / 2 + this.parent.maxWidth - imageCounterDim.width - parseInt(this.container.getStyle('padding-left'));
    	var top = ((containerDim.height - (parseInt(this.container.getStyle('padding-top'))*2)) - (imageCounterDim.height + imageCounterHeight)) * -1;
    	if(Prototype.Browser.IE && navigator.userAgent.match(/MSIE 7\.0/)) {
    		this.imageCounter.setStyle({ float: 'left' });
    		this.imageCounterBackground.setStyle({ float: 'left' });
    		top -= imageCounterDim.height - 5;
    	}
    	this.imageCounter.setStyle({ left: left+'px', top: top+'px' });
    	if(Prototype.Browser.IE && navigator.userAgent.match(/MSIE 8\.0/)) {
    		left -= 70;
    	}
    	else if(Prototype.Browser.IE && navigator.userAgent.match(/MSIE 7\.0/)) {
    		left -= 80;
    		top += imageCounterDim.height - 5;
    	}
    	this.imageCounterBackground.setStyle({ left: left+'px', top: (top-imageCounterDim.height)+'px', width: imageCounterDim.width+'px', height: imageCounterHeight+'px' });
    	this.imageCounterBackgroundImage.writeAttribute('width', imageCounterDim.width);
    	this.imageCounterBackgroundImage.writeAttribute('height', imageCounterHeight);
    },
    
    show: function() {
    	this.visible = true;
//        new PeriodicalExecuter(function(pe) {
        	this.imageCounter.show();
        	this.imageCounterBackground.show();
        	this.positionCounter();
//        	pe.stop();
//        }.bind(this), 1);
    },
    
    hide: function() {
    	this.visible = false;
    	this.imageCounter.hide();
    	this.imageCounterBackground.hide();
    }
});

var MediaGalleryDetail = Class.create({
    data: null,
    images: null,
    element: null,
    container: null,
    index: null,
    maxWidth: null,
    maxHeight: null,
    controller: null,
    MGallery: null,
    
    initialize: function(maxWidth, maxHeight, MGallery) {
        this.maxWidth = maxWidth;
        this.maxHeight = maxHeight;
        this.index = 0;
        this.MGallery = MGallery;
        this.images = new Array();
    },
    
    destruct: function() {
    	this.images.each(function(item) { item.destruct(); });
    	this.images = new Array();
    },
    
    readData: function() {
        this.data = this.MGallery.MGDContainer.getData('detail');
    },

    create: function(container) {
        this.container = container;
        this.readData();

        tmp = new Array();
        this.data.each(function(item) {
        	image = new MediaGalleryImage(item);
        	image.preload();
            tmp.push(image);
        }.bind(this));
        this.images = tmp;
    },

    setIndex: function(index) {
        this.index = index;

        if(this.controller) {
            this.checkEnabledConditions();
            this.setImage(this.index);
        }
    },
    
    getIndex: function() {
        return this.index;
    },
    
    next: function() {
        if(this.index + 1 >= this.images.length) {
            return;
        }
        
        this.index++;
        this.checkEnabledConditions();
        this.setImage(this.index);
    },
    
    previous: function() {
        if(this.index - 1 < 0) {
            return;
        }
        
        this.index--;
        this.checkEnabledConditions();
        this.setImage(this.index);
    },
    
    checkEnabledConditions: function() {
        if(this.index == 0) {
            this.controller.disable('previous');
        }
        else {
            this.controller.enable('previous');
        }
        
        if(this.index == (this.images.length - 1)) {
            this.controller.disable('next');
        }
        else {
            this.controller.enable('next');
        }
    },
    
    setImage: function(index) {
    	var current = this.images[index];
		this.element.setImage(current);
    	if(current.loaded() && current.available()) {
    		this.MGallery.MGSZMTag.embedSZM();
    	}
    },
    
    resize: function() {
        
    }
});

var MediaGalleryDetailViewer = Class.create( MediaGalleryDetail, {
    goBackTo: null,
    counter: null,

    readData: function() {
        this.data = this.MGallery.MGDContainer.getData('detail');
        if(!this.counter) {
        	this.counter = new MediaGalleryCounter(this);
        }
    },
    
    create: function(container, iconImages) {
        this.container = container;
        this.readData();

        var imageWrapper = new Element('div', { 'class':'image-wrapper' });
        var toolbar = new Element('div', { 'class':'toolbar' });
        var dataContainer = new Element('div', { 'class':'image-info' });

        this.container.insert(imageWrapper);
        
        this.element = new MediaGalleryElement(this.data[this.index], this.maxWidth, this.maxHeight);
        this.container.childElements().last().insert(this.element.getElement());
        
        this.element.setContainer(this.container.childElements().last().childElements().last());
        this.element.preload();

        this.container.insert(toolbar);

        this.show();

        this.controller = new MediaGalleryDetailViewerController(this, iconImages);
        this.controller.create(this.container.childElements().last());

        this.container.childElements().last().insert(dataContainer);

        this.container.childElements().last().childElements().last().insert(new Element('h4'));
        this.container.childElements().last().childElements().last().insert(new Element('p'));

        this.counter.create(this.container);

        tmp = new Array();
        this.data.each(function(item) {
        	image = new MediaGalleryImage(item);
        	image.preload();
            tmp.push(image);
        }.bind(this));
        this.images = tmp;
    },
    
    resize: function($super) {
    	$super();
    	
    	this.counter.positionCounter();
    },
    
    // no idea why i have to overwrite this function, i dont need to overwrite it,
    // its fine the way its working in the superclass
    setIndex: function(index) {
        this.index = index;

        if(this.controller) {
            this.checkEnabledConditions();
            this.setImage(this.index);
        }
    },
    
    setInfoData: function() {
    	//this.container.select('.image-counter').first().update((this.index+1)+' / '+(this.MGDViewer.images.length+1));
        var data = this.MGallery.MGDContainer.getItem(this.index);
        var container = this.container.select('.image-info').first();
        container.childElements().first().update(data.title);
        container.childElements().last().update(data.description);
        if(!data.title && !data.description) {
        	container.hide();
        }
        else {
        	container.show();
        }
        this.swapToolbarWithImageInfo();
        this.counter.updateImageCount();
    },
    
    swapToolbarWithImageInfo: function() {
    	var toolbar = this.container.select('.toolbar').first();
    	
    	if(toolbar.childElements().last().hasClassName('image-info')) {
    		var tmp = toolbar.childElements().first().remove();
    		toolbar.insert(tmp);
    	}
    },
    
    setGoBackTo: function(backPath) {
        this.goBackTo = backPath;
    },
    
    download: function() {
        var item = this.MGallery.MGDContainer.getItem(this.index);
        var download = 'http://'+window.location.hostname+'/?eID=loadGallery&download='+item.original;
        window.location.href = download;
    },
    
    destruct: function($super) {
    	$super();
    	
        if(!this.container) {
            return;
        }
        
        this.container.childElements().each( function(item) { item.remove(); });

        this.data = null;
        this.images = new Array();
        this.element = null;
        this.index = null;
        this.controller = null;
    },
    
    slideshow: function() {
    },
    
    back: function() {
        switch(this.goBackTo){
        case 'browse': this.MGallery.controller.goBrowse(); break;
        case 'carousel': this.MGallery.controller.goCarousel(); break;
        }
    },
    
    show: function() {
        $$('.content-detail').first().appear({ afterFinish: function() {
        	if(this.goBackTo) { this.controller.enable('back'); }
        	this.visible = true;
        	if(this.counter) {
        		this.counter.show();
        		this.counter.positionCounter();
        	}
        }.bind(this) });
    },
    
    hide: function() {
        $$('.content-detail').first().fade({ afterFinish: function() {
        	this.goBackTo = null;
        	if(this.controller) { this.controller.disable('back'); }
        	this.visible = false;
        	if(this.counter) {
        		this.counter.hide();
        	}
        }.bind(this) });
    }
});

var MediaGalleryDetailController = Class.create({
    MGDViewer: null,
    container: null,
    index: null,
    iconImages: null,
    enabledMap: null,
    
    initialize: function(MGDViewer, iconImages) {
        this.MGDViewer = MGDViewer;
        this.iconImages = iconImages;
        this.index = 0;
    },

    create: function(container) {
        this.container = container;
        
        var wrapper = new Element('div');
        this.container.insert(wrapper);
        this.container = this.container.childElements().last();

        var dl = new Element('dl');
        var dt = new Element('dt');
        var dd = new Element('dd');
        var img = new Element('img', { 'width':'64', 'height':'16' });

        var imgPrevious = img.clone();
        imgPrevious.writeAttribute('src', this.iconImages[1]);
        imgPrevious.addClassName('previous');
        
        this.container.insert(dl.clone());
        this.container.childElements().last().insert(dt.clone());
        this.container.childElements().last().insert(dd.clone());
        this.container.childElements().last().childElements().first().insert(imgPrevious);
        this.container.childElements().last().childElements().last().update('zur&uuml;ckbl&auml;ttern');
        this.container.childElements().last().observe('click', this.previous.bindAsEventListener(this));
        this.container.childElements().last().observe('mouseover', this.previousOver.bindAsEventListener(this));
        this.container.childElements().last().observe('mouseout', this.previousOut.bindAsEventListener(this));

        var imgNext = img.clone();
        imgNext.writeAttribute('src', this.iconImages[2]);
        imgNext.addClassName('next');
        
        this.container.insert(dl.clone());
        this.container.childElements().last().insert(dt.clone());
        this.container.childElements().last().insert(dd.clone());
        this.container.childElements().last().childElements().first().insert(imgNext);
        this.container.childElements().last().childElements().last().update('vorbl&auml;ttern');
        this.container.childElements().last().observe('click', this.next.bindAsEventListener(this));
        this.container.childElements().last().observe('mouseover', this.nextOver.bindAsEventListener(this));
        this.container.childElements().last().observe('mouseout', this.nextOut.bindAsEventListener(this));

//        this.container.setStyle({ width: (this.container.childElements().length * this.container.childElements()[0].getWidth())+'px', margin: 'auto'});
        this.container.setStyle({ width: (this.container.childElements().length*100)+'px', margin: 'auto'});

        this.createEnabledMap();

        this.disable('previous');
        this.disable('next');
        this.MGDViewer.checkEnabledConditions();
    },
    
    createEnabledMap: function() {
        this.enabledMap = new Array;
        this.enabledMap['bprevious'] = true;
        this.enabledMap['bnext'] = true;
    },
    
    enable: function(key) {
//        console.log('enable');
        this.enabledMap['b'+key] = true;
        this.container.down('.'+key).setOpacity(1);
        $$('.'+key).first().up().up().setStyle({ cursor: 'pointer' });
    },
    
    disable: function(key) {
//        console.log('disable');
        this.enabledMap['b'+key] = false;
        this.container.down('.'+key).setOpacity(0.2);
        
        $$('.'+key).first().up().up().setStyle({ cursor: 'auto', background: 'none' });
    },
    
    previous: function(event) {
        if(this.enabledMap['bprevious']) {
            this.MGDViewer.previous();
            if(this.MGDViewer.setInfoData) {
            	this.MGDViewer.setInfoData();
            }
        }
    },
    
    previousOver: function(event) {
        if(this.enabledMap['bprevious']) {
            this.container.down('.previous').up('dl').setStyle({ backgroundColor: '#999999' });
        }
    },
    
    previousOut: function(event) {
        this.container.down('.previous').up('dl').setStyle({ background: 'none' });
    },
    
    next: function(event) {
        if(this.enabledMap['bnext']) {
            this.MGDViewer.next();
            if(this.MGDViewer.setInfoData) {
            	this.MGDViewer.setInfoData();
            }
        }
    },
    
    nextOver: function(event) {
        if(this.enabledMap['bnext']) {
            this.container.down('.next').up('dl').setStyle({ backgroundColor: '#999999' });
        }
    },
    
    nextOut: function(event) {
        this.container.down('.next').up('dl').setStyle({ background: 'none' });
    }
});

var MediaGalleryBrowse = Class.create({
    dataSmall: null,
    dataBig: null,
    maxWidth: null,
    maxHeight: null,
    MGBDetail: null,
    MGBContainer: null,
    container: null,
    controller: null,
    visible: null,
    MGallery: null,
    
    initialize: function(maxWidth, maxHeight, minWidth, minHeight, MGallery) {
        this.maxWidth = maxWidth;
        this.maxHeight = maxHeight;
        this.minWidth = minWidth;
        this.minHeight = minHeight;
        this.visible = false;
        this.MGallery = MGallery;
    },
    
    readData: function() {
        this.dataSmall = this.MGallery.MGDContainer.getData('browseSmall');
        this.dataBig = this.MGallery.MGDContainer.getData('browseBig');
    },
    
    create: function(container, iconImages, index) {
        this.container = container;
        this.readData();

        var leftColumn = new Element('div', { 'class':'left-column' });
        var rightColumn = new Element('div', { 'class':'right-column' });

        this.container.insert(leftColumn);
        this.container.insert(rightColumn);

        this.show();

        this.MGBDetail = new MediaGalleryBrowseDetail(this.maxWidth, this.maxHeight, this.MGallery);
        this.MGBDetail.setIndex(index);
        this.MGBDetail.create(this.container.childElements().first(), iconImages);
        this.MGBContainer = new MediaGalleryBrowseContainer(this.minWidth, this.minHeight, this.MGallery);
        this.MGBContainer.create(this.container.childElements().last(), this.MGBDetail);
        this.MGBDetail.createImageArray();
        this.MGallery.MGSZMTag.embedSZM();
    },
    
    getIndex: function() {
        return this.MGBDetail.index;
    },
    
    setIndex: function(index) {
        this.MGBDetail.setIndex(index);
    },
    
    destruct: function() {
    	if(this.MGBDetail && this.MGBContainer) {
	    	this.MGBDetail.destruct();
	    	this.MGBContainer.destruct();
    	}
    	
        if(!this.container) {
            return;
        }
        
        this.container.childElements().each( function(item) { item.remove(); });
        
        this.MGBContainer = null;
        this.MGBDetail = null;
        this.controller = null;
        this.dataSmall = null;
        this.dataBig = null;
    },
    
    show: function() {
        if(this.visible === true) {
            return;
        }

    	//this.pane.select('.loader').first().hide();
        $$('.content-browse').first().appear({ afterFinish: function() {
        	this.visible = true;
        	this.resize();
        	if(this.MGBDetail.counter) {
        		this.MGBDetail.counter.show();
        		this.MGBDetail.counter.updateImageCount();
        	}
        }.bind(this) });
    },
    
    hide: function() {
        $$('.content-browse').first().fade({ afterFinish: function() {
        	this.visible = false;
        	if(this.MGBDetail) {
            	if(this.MGBDetail.counter) {
            		this.MGBDetail.counter.hide();
            	}
        	}
        }.bind(this) });
    },
    
    resize: function() {
    	if(!this.container || !this.container.childElements().length) {
    		return;
    	}
        var viewportWidth = this.container.getWidth();
        imgMargin = 5;
        var imgWidth = this.container.childElements().last().down().down().getStyle('width');
        imgWidth = imgWidth.substring(0, imgWidth.length - 2);
        contPadding = 8;
        wrapperPadding = 20;
        var wrapperWidth = this.container.childElements().last().down().getWidth();
        
        // reserves a third of the viewport width for the container with thumbnails
        //var contWidth = (viewportWidth / 3).floor();

        // reserves the remaining space left for the thumbnail container
        var contWidth = viewportWidth - this.maxWidth - imgWidth - 40 * 2;
        
        var step = imgMargin * 2 + Number(imgWidth);
        var count = ((contWidth - contPadding * 2 - wrapperPadding * 2) / step).round();
        var finalWidth = step * count + contPadding + (wrapperPadding * 2);
        
//        console.log('vw: '+viewportWidth+' step: '+step+' iw: '+imgWidth+' count: '+count+' cw: '+contWidth+' ww: '+wrapperWidth);
        this.container.childElements().first().setStyle({ 'width':(viewportWidth-finalWidth-121)+'px' });
        this.container.childElements().last().setStyle({ 'width':finalWidth+'px' });
//        this.container.childElements().last().down().setStyle({ 'maxHeight':finalHeight+'px' });
        this.MGBDetail.counter.positionCounter();
    }
});

var MediaGalleryBrowseDetail = Class.create( MediaGalleryDetail, {
	counter: null,
    
    readData: function() {
        this.data = this.MGallery.MGDContainer.getData('browseBig');
        if(!this.counter) {
        	this.counter = new MediaGalleryCounter(this);
        }
    },
    
    create: function($super, container, iconImages) {
        this.container = container;
        this.readData();

        var top = new Element('div', { 'class':'top' });
        var toolbar = new Element('div', { 'class':'toolbar' });
        var dataContainer = new Element('div', { 'class':'image-info' });

//        this.container.insert(top);;
        this.element = new MediaGalleryElement(this.data[this.index], this.maxWidth, this.maxHeight);
        this.container.insert(this.element.getElement());
        this.element.setContainer(this.container.childElements().last());
        this.element.preload();
        
        this.container.insert(toolbar);

        this.controller = new MediaGalleryBrowseDetailController(this, iconImages);
        this.controller.create(this.container.childElements().last());

        this.container.childElements().last().insert(dataContainer);

        this.container.childElements().last().childElements().last().insert(new Element('h4'));
        this.container.childElements().last().childElements().last().insert(new Element('p'));

        this.setInfoData();
//        this.container = this.container.childElements().select('img').first();

        this.counter.create(this.container);
    },
    
    createImageArray: function() {
        tmp = new Array();
        this.data.each(function(item) {
        	image = new MediaGalleryImage(item);
        	image.preload();
            tmp.push(image);
        }.bind(this));
        this.images = tmp;
    },
    
    destruct: function($super) {
    	$super();
    },
    
    setIndex: function($super, index) {
    	$super(index);
        this.setInfoData();
    },
    
    setInfoData: function() {
    	if(!this.container) {
    		return;
    	}
    	
        var data = this.MGallery.MGDContainer.getItem(this.index);
        var container = this.container.select('.image-info').first();
        container.childElements().first().update(data.title);
        container.childElements().last().update(data.description);
        if(!data.title && !data.description) {
        	container.hide();
        }
        else {
        	container.show();
        }
        this.swapToolbarWithImageInfo();
        this.counter.updateImageCount();
    },
    
    swapToolbarWithImageInfo: function() {
    	var toolbar = this.container.select('.toolbar').first();
    	
    	if(toolbar.childElements().last().hasClassName('image-info')) {
    		var tmp = toolbar.childElements().first().remove();
    		toolbar.insert(tmp);
    	}
    }
});

var MediaGalleryBrowseDetailController = Class.create(MediaGalleryDetailController, {

    create: function($super, container) {
        $super(container);

        this.container.up().up().up().down('img').observe('click', this.goDetail.bindAsEventListener(this));
    },
    
    previous: function($super) {
    	$super();
        if(this.MGDViewer.setInfoData) {
        	this.MGDViewer.setInfoData();
        }
    },
    
    next: function($super) {
    	$super();
        if(this.MGDViewer.setInfoData) {
        	this.MGDViewer.setInfoData();
        }
    },
    
    goDetail: function(event) {
        this.MGDViewer.MGallery.controller.goDetail();
    }
});

var MediaGalleryBrowseContainer = Class.create({
    data: null,
    elements: null,
    maxWidth: null,
    maxHeight: null,
    container: null,
    viewport: null,
    controller: null,
    MGallery: null,
    created: null,
    
    initialize: function(maxWidth, maxHeight, MGallery) {
        this.maxWidth = maxWidth;
        this.maxHeight = maxHeight;
        this.MGallery = MGallery;
        this.created = false;
        this.elements = new Array();
    },
    
    readData: function() {
        this.data = this.MGallery.MGDContainer.getData('browseSmall');
    },
    
    destruct: function() {
    	this.elements.each(function(item) { if(item) { item.destruct(); } });
    	this.elements = new Array();
    },
    
    create: function(container, MGBDetail) {
        this.container = container;
        this.readData();

        var browseContainer = new Element('div', { 'class':'browse-container' });
        this.container.insert(browseContainer);
        
        tmp = new Array();
        this.data.each( function(item) {
            tmp.push(new MediaGalleryElement(item, this.maxWidth, this.maxHeight));
        }.bind(this));
        this.elements = tmp;
        
        this.elements.each( function(item) {
            this.container.childElements().last().insert(item.getElement());
            item.setContainer(this.container.childElements().last().childElements().last());
            item.preload();
        }.bind(this));
        
        this.controller = new MediaGalleryBrowseContainerController(this, MGBDetail);
        this.created = true;
    } 
});

var MediaGalleryBrowseContainerController = Class.create({
    MGBDetail: null,
    container: null,
    
    initialize: function(MGBContainer, MGBDetail) {
        this.MGBDetail = MGBDetail;
        
        MGBContainer.elements.each(function(item) {
            item.container.observe('click', this.clickHandle.bindAsEventListener(this));
            item.container.observe('mouseover', this.overHandle.bindAsEventListener(item));
            item.container.observe('mouseout', this.outHandle.bindAsEventListener(item));
        }.bind(this));
        
    },
    
    clickHandle: function(event) {
        this.MGBDetail.setIndex(event.element().up().childElements().indexOf(event.element()));
    },
    
    overHandle: function(event) {
        this.container.addClassName('over');
    },
    
    outHandle: function(event) {
        this.container.removeClassName('over');
    }
});

var MediaGalleryDetailViewerController = Class.create(MediaGalleryDetailController, {
    
    create: function($super, container) {
        $super(container);
        
        var dl = new Element('dl');
        var dt = new Element('dt');
        var dd = new Element('dd');
        var img = new Element('img', { 'width':'64', 'height':'16' });
        
        var imgDownload = img.clone();
        imgDownload.writeAttribute('src', this.iconImages[0]);
        imgDownload.addClassName('download');

        this.container.insert({ top: dl.clone() });

        this.container.childElements().first().insert(dt.clone());
        this.container.childElements().first().insert(dd.clone());
        this.container.childElements().first().childElements().first().insert(imgDownload);
        this.container.childElements().first().childElements().last().update('download');
        this.container.childElements().first().observe('click', this.download.bindAsEventListener(this));;
        this.container.childElements().first().observe('mouseover', this.downloadOver.bindAsEventListener(this));;
        this.container.childElements().first().observe('mouseout', this.downloadOut.bindAsEventListener(this));
        
        var imgBack = img.clone();
        imgBack.writeAttribute('src', this.iconImages[4]);
        imgBack.addClassName('back');
        
        this.container.insert(dl.clone());
        this.container.childElements().last().insert(dt.clone());
        this.container.childElements().last().insert(dd.clone());
        this.container.childElements().last().childElements().first().insert(imgBack);
        this.container.childElements().last().childElements().last().update('rausspringen');
        this.container.childElements().last().observe('click', this.back.bindAsEventListener(this));
        this.container.childElements().last().observe('mouseover', this.backOver.bindAsEventListener(this));
        this.container.childElements().last().observe('mouseout', this.backOut.bindAsEventListener(this));

        /*var imgSlideshow = img.clone();
        imgSlideshow.writeAttribute('src', this.iconImages[3]);
        imgSlideshow.addClassName('slideshow');
        
        this.container.insert(dl.clone());
        this.container.childElements().last().insert(dt.clone());
        this.container.childElements().last().insert(dd.clone());
        this.container.childElements().last().childElements().first().insert(imgSlideshow);
        this.container.childElements().last().childElements().last().update('Slideshow');
        this.container.childElements().last().observe('click', this.slideshow.bindAsEventListener(this));
        this.container.childElements().last().observe('mouseover', this.slideshowOver.bindAsEventListener(this));
        this.container.childElements().last().observe('mouseout', this.slideshowOut.bindAsEventListener(this));
        this.container.childElements().last().hide();*/
        
        this.createEnabledMap();

//        this.disable('download');
//        this.disable('slideshow');
        this.disable('back');

        if(Prototype.Browser.Opera) {
        	this.container.setStyle({ width: this.container.childElements().length * 100+'px', margin: 'auto' });
        }
        else {
        	this.container.setStyle({ width: (this.container.childElements().length * this.container.childElements()[0].getStyles().width.substring(0, this.container.childElements()[0].getStyles().width.length - 2))+'px', margin: 'auto'});
        }
        
        this.container.up().up().down('img').observe('click', this.skip.bindAsEventListener(this));

        this.MGDViewer.checkEnabledConditions();
    },
    
    createEnabledMap: function() {
        this.enabledMap = new Array;
        this.enabledMap['bdownload'] = true;
        this.enabledMap['bprevious'] = true;
        this.enabledMap['bnext'] = true;
        this.enabledMap['bslideshow'] = true;
        this.enabledMap['bback'] = true;
    },
    
    skip: function(event) {
        this.next();
    },
    
    download: function(event) {
        if(this.enabledMap['bdownload']) {
            this.MGDViewer.download();
        }
    },
    
    downloadOver: function(event) {
        if(this.enabledMap['bdownload']) {
            this.container.down('.download').up('dl').setStyle({ backgroundColor: '#999999' });
        }
    },
    
    downloadOut: function(event) {
        this.container.down('.download').up('dl').setStyle({ background: 'none' });
    },
    
    slideshow: function(event) {
        if(this.enabledMap['bslideshow']) {
            this.startSlideshow();
        }
    },
    
    slideshowOver: function(event) {
        if(this.enabledMap['bslideshow']) {
            this.container.down('.slideshow').up('dl').setStyle({ backgroundColor: '#999999' });
        }
    },
    
    slideshowOut: function(event) {
        this.container.down('.slideshow').up('dl').setStyle({ background: 'none' });
    },
    
    startSlideshow: function() {
        if(this.enabledMap['bslideshow']) {
        }
    },
    
    back: function(event) {
        if(this.enabledMap['bback']) {
            this.MGDViewer.back();
        }
    },
    
    backOver: function(event) {
        if(this.enabledMap['bback']) {
            this.container.down('.back').up('dl').setStyle({ backgroundColor: '#999999' });
        }
    },
    
    backOut: function(event) {
        this.container.down('.back').up('dl').setStyle({ background: 'none' });
    }
});

var MediaGalleryDataContainer = Class.create({
    data: null,
    galleryID: null,
    current: null,
    length: null,
    
    initialize: function() {
        this.data = { title: new Array(), description: new Array(), browseBig: new Array(), browseSmall: new Array(), carouselHigh: new Array(), carouselLow: new Array(), detail: new Array(), original: new Array() };
        this.current = 0;
        this.galleryID = 0;
        this.length = 0;
    },
    
    add: function(item) {
        this.data.title.push(item[0]);
        this.data.description.push(item[1]);
        this.data.browseBig.push(item[2]);
        this.data.browseSmall.push(item[3]);
        this.data.carouselHigh.push(item[4]);
        this.data.carouselLow.push(item[5]);
        this.data.detail.push(item[6]);
        this.data.original.push(item[7]);
        this.length++;
    },
    
    next: function() {
        if(this.current >= this.length) {
            this.current = null;
            return null;
        }

        this.current++;
        return this.createDataObject(this.current - 1);
    },
    
    previous: function() {
        if(this.current < 0 ) {
            this.current = null;
            return null;
        }
        else if(this.length <= this.current) {
            this.current = null;
            return null;
        }

        this.current--;    
        return this.createDataObject(this.current + 1);
    },
    
    createDataObject: function(index) {
        var obj = { title: this.data.title[index], description: this.data.description[index], browseBig: this.data.browseBig[index], browseSmall: this.data.browseSmall[index], carouselHigh: this.data.carouselHigh[index], carouselLow: this.data.carouselLow[index], detail: this.data.detail[index], original: this.data.original[index] };
        return obj;
    },
    
    reset: function() {
        this.current = 0;
    },
    
    getItem: function(index) {
        return this.createDataObject(index);
    },
    
    getData: function(group) {
        switch(group) {
            case 'browseBig': return this.data.browseBig;
            case 'browseSmall': return this.data.browseSmall;
            case 'carouselHigh': return this.data.carouselHigh;
            case 'carouselLow': return this.data.carouselLow;
            case 'detail': return this.data.detail;
            case 'original': return this.data.original;
            default: return null;
        }
    },
    
    testPreload: function() {
    	this.current = 0;
    	while(true) {
    		var current = this.next();

    		if(!current) {
    			break;
    		}

    		var tmp;
    		tmp = new MediaGalleryImage(current.browseBig);
    		tmp.preload();
    		tmp = new MediaGalleryImage(current.browseSmall);
    		tmp.preload();
    		tmp = new MediaGalleryImage(current.carouselHigh);
    		tmp.preload();
    		tmp = new MediaGalleryImage(current.carouselLow);
    		tmp.preload();
    		tmp = new MediaGalleryImage(current.detail);
    		tmp.preload();
    	}
    },
    
    loadGallery: function(gallery) {
        this.length = 0;
        this.data = { title: new Array(), description: new Array(), browseBig: new Array(), browseSmall: new Array(), carouselHigh: new Array(), carouselLow: new Array(), detail: new Array(), original: new Array() };
    	var data = gallery.evalJSON();
        this.galleryID = data.uid;
        data.elements.each(function(item) {
            this.add(new Array(item.title, item.description, item.images.browseBig, item.images.browseSmall, item.images.carouselHigh, item.images.carouselLow, item.images.detail, item.images.original));
        }.bind(this));
    }
});

var MediaGalleryCookie = Class.create({
    galleryID: null,
    index: null,
    mode: null,
    
    initialize: function(galleryID) {
        this.galleryID = galleryID;
    },
    
    storeConfigInCookie: function(index, mode) {
        this.index = index;
        this.mode = mode;
        temp = {index: this.index, mode: this.mode};
        document.cookie = 'galleryID'+this.galleryID+'=' + escape(Object.toJSON(temp)) + ';';
//        console.log('write -> mode: '+this.mode+' index: '+this.index+' galleryID: '+this.galleryID);
    },
    
    restoreConfigFromCookie: function() {
        var cookie = document.cookie.match('galleryID'+this.galleryID+'=(.*?)(;|$)');
        if(cookie) {
            cdata = (unescape(cookie[1])).evalJSON();
            this.index = cdata.index;
            this.mode = cdata.mode;
        }
        else {
        	this.index = 0;
        	this.mode = 'browse';
        }
        
        return {index: this.index, mode: this.mode};
    } 
});

var MediaGalleryCanvas = Class.create( MediaGalleryElement, {
    context: null,
    index: null,
    pe: null,
    
    initialize: function(file, width, height, index) {
        if(!file) {
            file = this.preloaderImage;
        }

        this.MGImage = new MediaGalleryImage(file);
        this.iwidth = width;
        this.iheight = height;
        this.itop = 0;
        this.index = index;
        
        this.container = new Element('canvas', { 'width':this.iwidth, 'height':this.iheight, 'id':'MGC'+this.index });
        this.preload();
    },
    
    preload: function() {
    	this.MGImage.preload(function (event) {
            if(this.container.getContext) {
                this.context = this.container.getContext('2d');
                this.context.drawImage(this.MGImage.image, 0, 0, this.iwidth, this.iheight);
            }
    	}.bindAsEventListener(this));
    },
    
    checkPreload: function() {
    	if(!this.MGImage.loaded()) {
    		this.preload();
    	}
    },
    
    setContainer: function(container) {
        this.container = container;
        
        /* IE fix for dynamically added canvas objects */
        if(Prototype.Browser.IE) {
            try {
                this.container = G_vmlCanvasManager.initElement(this.container);
            }
            catch(exception) {
            }
        }
    },
    
    setIndex: function(index) {
        this.index = index;
    },
    
    setOpacity: function(value) {
        this.container.setOpacity(value);
    },
    
    resize: function(width, height, top, minWidth, margin) {
        this.iwidth = width;
        this.iheight = height;
        this.iheight = height;
        this.itop = top;
        this.imargin = ((((width-minWidth) / 2)*-1)+margin);
    },
    
    render: function() {
//        console.profile();
//        this.container.writeAttribute('width', this.iwidth);
        this.container.width = this.iwidth;
//        this.container.writeAttribute('height', this.iheight);
        this.container.height = this.iheight;
        this.container.setStyle({ top: this.itop+'px', zIndex: this.iwidth, margin: '0 '+this.imargin+'px' });
        if(!Prototype.Browser.IE) {
            this.drawContext();
        }
//        console.profileEnd();
    },
    
    drawContext: function() {
        if(!this.context) {
            return;
        };
        // Chrome doesnt process the drawImage function, also safari
        // its because it throws an exception when the image is not loaded yet
        // we have to let the whole scene been redrawn after all images are loaded
        try {
            if(this.MGImage.loaded()) {
                this.context.drawImage(this.MGImage.image, 0, 0, this.iwidth, this.iheight);
            }
        }
        catch(e) {
        }
    },
    
    getElement: function() {
        return this.container;
    },
    
    setImage: function(MGImage) {
        this.MGImage.setImage(MGImage);
//        this.update();
    },

    update: function() {
//        this.container.writeAttribute('width', this.iwidth);
        this.container.width = this.iwidth;
//        this.container.writeAttribute('height', this.iheight);
        this.container.height = this.iheight;
        if(!Prototype.Browser.IE) {
            if(this.container.getContext) {
                this.context = this.container.getContext('2d');
                
                // maybe causing the reload bug
                try {
                    if(this.MGImage.loaded()) {
                        this.context.drawImage(this.MGImage.image, 0, 0, this.iwidth, this.iheight);
                    }
                } catch (exception) {
                }
                if(this.pe) {
                    this.pe.stop();
                }
            }
        }
    },
    
    hide: function() {
        this.container.hide();
    },
    
    show: function() {
        this.container.show();
    }
});

var MediaGalleryVirtualSlider = Class.create({
    MGCarusel: null,
    realPosition: null,
    virtualLength: null,
    virtualOffset: null,
    virtualStart: null,
    virtualEnd: null,
    modifier: null,
    
    initialize: function(MGCarusel) {
        this.MGCarusel = MGCarusel;
    },

    evalVisible: function(realPosition) {
    	tmc.add('CarouselVirtualSlider:evalVisible');
        this.realPosition = realPosition;
        
        var visibleWidth = this.MGCarusel.viewport.width;
        var step = this.MGCarusel.minWidth + this.MGCarusel.margin * 2;
        var centerEndRange = ((visibleWidth + step - (visibleWidth % step)) / step);
        
        var offset = this.MGCarusel.containerPositionMin + (visibleWidth / 2) - this.realPosition;

        var virtualPos = (offset / step).round();
        this.virtualStart = (((visibleWidth / 2) / step) * -1).round() + virtualPos;
        this.virtualEnd = ((visibleWidth / 2) / step).round() + virtualPos;
        
        if(this.virtualStart < 0) {
            this.virtualStart = 0;
        }
        if(this.virtualEnd >= this.MGCarusel.elements.length) {
            this.virtualEnd = this.MGCarusel.elements.length - 1;
        }

        this.virtualOffset = this.virtualStart * step;
        if((this.virtualEnd - this.virtualStart) < centerEndRange && this.virtualStart != 0) {
            this.modifier = centerEndRange - (this.virtualEnd - this.virtualStart);
            this.virtualOffset -= step * this.modifier;
        }
        else {
            this.modifier = 0;
        }
//        console.log('start: '+this.virtualStart+' end: '+this.virtualEnd+' current: '+(offset / step).round()+' offset: '+this.virtualOffset+' modifier: '+this.modifier);
    	tmc.end('CarouselVirtualSlider:evalVisible');
    }
});

var MediaGalleryCarusellView = Class.create({
    MGCarusel: null,
    elements: null,
    resourceHandler: null,
    
    initialize: function(MGCarusel) {
        this.MGCarusel = MGCarusel;
        this.elements = new Array();
        this.resourceHandler = new PeriodicalExecuter(this.checkImageResource.bind(this), this.MGCarusel.frequency);
    },
    
    destruct: function() {
        this.elements = new Array();
        if(this.resourceHandler) {
        	this.resourceHandler.stop();
        }
    },
    
    initalizeElements: function() { 
    	tmc.add('CarouselView:intializeElements');
        var visibleWidth = this.MGCarusel.viewport.width;
        var step = this.MGCarusel.minWidth + this.MGCarusel.margin * 2;
        
        var count = ((visibleWidth + step - (visibleWidth % step)) / step) + 1;
        var sliderLength = step * count;
    	
        if(sliderLength == this.MGCarusel.container.childElements()) {
        	tmc.end('CarouselView:intializeElements');
            return;
        }
        
        this.MGCarusel.container.childElements().each( function(item) {
            item.remove();
        });

        this.elements = new Array();
        for(var i = 0, length =  this.MGCarusel.elements.length; i < count && i < length; i ++) {
            if(Prototype.Browser.IE || Prototype.Browser.Gecko || Prototype.Browser.Opera) {
                this.elements.push(new MediaGalleryElement(null, this.MGCarusel.maxWidth, this.MGCarusel.maxWidth, i));
            }
            else {
                this.elements.push(new MediaGalleryCanvas(null, this.MGCarusel.maxWidth, this.MGCarusel.maxWidth, i));
            }
            this.MGCarusel.container.insert(this.elements.last().getElement());
            this.elements.last().setContainer(this.MGCarusel.container.childElements().last());
            this.elements.last().setImage(this.MGCarusel.elements[this.MGCarusel.virtualSlider.virtualStart + i]);
            this.elements.last().preload();
            this.elements.last().container.observe('click', this.elements.last().observe = function(event) {
                var index = this.MGCarusel.virtualSlider.virtualStart+this.MGCarusel.container.childElements().indexOf(event.target)-this.MGCarusel.virtualSlider.modifier;
                var navigator = this.MGCarusel.controller.navigator;
                if(!navigator.running && navigator.getIndexPosition() == index) {
                    return this.MGCarusel.MGallery.controller.goDetail();
                }
                this.MGCarusel.controller.navigator.navigateTo(index);
            }.bindAsEventListener(this));
        }
    	tmc.end('CarouselView:intializeElements');
    },
    
    // currently only needed for the IE
    checkImageResource: function(pe) {
//    	var output = '';
    	this.elements.each(function(item) {
    		if(item.MGImage.loaded()) {
    			item.drawContext();
    			//console.log(item.MGImage.image.src);
    		}
//    		output += item.MGImage.loaded()+' / ';
    	});
    	//alert(output);
    },
    
    swapDataResource: function(quality) {
    	tmc.add('CarouselView:swapDataResource');
        var tmp = new Array();
        switch(quality) {
        case 'low': tmp = this.MGCarusel.elementsLow; break;
        case 'high': tmp = this.MGCarusel.elementsHigh; break;
        default: tmp = this.MGCarusel.elementsLow;
        }
        
        for(var i = 0; i < tmp.length; i++) {
        	if(!tmp[i].loaded() || !tmp[i].available()) {
        		continue;
        	}
            this.MGCarusel.elements[i].image = tmp[i].image;
        }
    	tmc.end('CarouselView:swapDataResource');
    },
    
    scaleImages: function() {
    	tmc.add('CarouselView:scaleImage');
        var containerLength = this.MGCarusel.minWidth + this.MGCarusel.virtualSlider.virtualOffset; //Padding + Offset of virtual Slider
        var containerPosition = this.MGCarusel.containerPosition;
        var centerOrigin = this.MGCarusel.viewport.width / 2;
        var bottomRelation = (this.MGCarusel.maxHeight * 0.1).round();
        var motionFactor = 1;

        if(this.MGCarusel.motion > 100) {
            var tmp = this.MGCarusel.motion - 100;
            if(tmp > 480) {
                motionFactor = 0.04;
            }
            else {
                motionFactor = 1 - (tmp / 500);
            }
        }
//        console.log('centerOrigin: '+centerOrigin+' containerPosition: '+containerPosition+' -> '+(containerPosition + containerLength + ((widthMin + margin) / 2) - centerOrigin.abs())+' : '+((containerPosition + containerLength + (widthMin + margin / 2)) - centerOrigin).abs());

        this.elements.each( function(item) {
            var width;
            var height;
            var top;
            var relation = ((this.MGCarusel.containerPosition + containerLength + ((this.MGCarusel.minWidth + this.MGCarusel.margin * 2) / 2)) - centerOrigin).abs();
//            console.log('index: '+this.MGCarusel.elements.indexOf(item)+' rel: '+relation);
            if(relation <= this.MGCarusel.range) {
                var factor = relation == 0 ? 1 : ((relation / this.MGCarusel.range) - 1).abs();
                width = (((this.MGCarusel.maxWidth - this.MGCarusel.minWidth) * factor) + this.MGCarusel.minWidth).round();
                height = (((this.MGCarusel.maxHeight - this.MGCarusel.minHeight) * (factor * motionFactor)) + this.MGCarusel.minHeight).round();
                top = this.MGCarusel.maxHeight - (bottomRelation * (1 - factor)).abs() - height;
//                console.log(height+' - '+width+' -> '+relation+' : '+factor);
            }
            else {
                width = this.MGCarusel.minWidth;
                height = this.MGCarusel.minHeight;
                top = this.MGCarusel.maxHeight - bottomRelation - height;
            }
//            console.log(containerPosition+' + '+containerLength+' -> '+(containerPosition + containerLength)+' : '+((containerPosition + containerLength) - centerOrigin).abs());
            item.resize(width, height, top, this.MGCarusel.minWidth, this.MGCarusel.margin);
            item.setOpacity(this.MGCarusel.evalAlpha(motionFactor));
            containerLength += this.MGCarusel.minWidth +this.MGCarusel.margin * 2;
        }.bind(this));
//        this.containerLength = containerLength + this.minWidth;
    	tmc.end('CarouselView:scaleImage');
    },
    
    draw: function() {
    	tmc.add('CarouselView:draw');
        this.MGCarusel.container.setStyle({ left: this.MGCarusel.containerPosition+this.MGCarusel.virtualSlider.virtualOffset+'px' });
        var counter = 0;
        var indexOffset = this.MGCarusel.virtualSlider.virtualStart-this.MGCarusel.virtualSlider.modifier;
        var output = '';
//        this.MGCarusel.elementsLow.each(function (item) {
//        	alert(Object.inspect(item));
//        });
        this.elements.each( function(item) {
//        	var tmp = this.MGCarusel.elementsLow[indexOffset+counter];
//        	if(tmp.MGImage) {
//        		output += tmp.loaded()+' / ';
//        	}
            item.setImage(this.MGCarusel.elements[indexOffset+counter]);
            item.checkPreload();
            item.render();
            counter++;
        }.bind(this));
//        alert(output);
//        this.MGCarusel.container.childElements().each( function(item) {
//            alert(item.readAttribute('width')+' - '+item.readAttribute('height'));
//            var index = this.MGCarusel.container.childElements().indexOf(item);
//            if(this.virtualSlider.virtualStart > index || this.virtualSlider.virtualEnd < index) {
//                this.MGCarusel.elements[index].setContainer(this.MGCarusel.container.childElements(index).remove());
//            }
//        });
    	tmc.end('CarouselView:draw');
    }
});

var tmcc = new TimeMeasurementContainer('Carousel:create');

var MediaGalleryCarusell = Class.create({
    dataLow: null,
    dataHigh: null,
    elementsLow: null,
    elementsHigh: null,
    elements: null,
    maxWidth: null,
    maxHeight: null,
    minWidth: null,
    minHeight: null,
    range: null,
    margin: null,
    container: null,
    containerLength: null,
    containerPosition: null,
    containerPositionMin: null,
    containerPositionMax: null,
    virtualSlider: null,
    view: null,
    maxtime: null,
    acceleration: null,
    initvalue: null,
    motion: null,
    frequency: null,
    visible: null,
    viewport: null,
    controller: null,
    MGallery: null,
    lowPreloadCounter: null,
    highPreloadCounter: null,
    pe: null,
    
    initialize: function(maxwidth, maxheight, minwidth, minheight, range, margin, maxtime, acceleration, initvalue, frequency, MGallery) {
        this.maxWidth = maxwidth;
        this.maxHeight = maxheight;
        this.minWidth = minwidth;
        this.minHeight = minheight;
        this.margin = margin;
        this.range = range;
        this.maxtime = maxtime;
        this.acceleration = acceleration;
        this.initvalue = initvalue;
        this.motion = 0;
        this.frequency = frequency;
        this.visible = false;
        this.MGallery = MGallery;

        this.elementsLow = new Array();
        this.elementsHigh = new Array();
        this.elements = new Array();
    },
    
    readData: function() {
        this.dataLow = this.MGallery.MGDContainer.getData('carouselLow');
        this.dataHigh = this.MGallery.MGDContainer.getData('carouselHigh');
    },
    
    create: function(container) {
    	tmcc.add('Carousel:create');
        this.container = container;
        this.readData();
        
        this.virtualSlider = new MediaGalleryVirtualSlider(this);
        this.view = new MediaGalleryCarusellView(this);
        
        this.lowPreloadCounter = this.dataLow.length;
        this.highPreloadCounter = this.dataHigh.length;

        var tmp = new Array();
        this.dataLow.each( function(item) {
            tmp.push(new MediaGalleryImage(item));
            tmp.last().preload(this.lowResourceLoaded.bindAsEventListener(this));
        }.bind(this));
        this.elementsLow = tmp;
        
        tmp = new Array();
        this.dataHigh.each( function(item) {
            tmp.push(new MediaGalleryImage(item));
        }.bind(this));
        this.elementsHigh = tmp;
        
        tmp = new Array();
        this.dataLow.each( function(item) {
            tmp.push(new MediaGalleryImage(item));
            tmp.last().preload();
        }.bind(this));
        this.elements = tmp;
        
        this.container.up('.image-container').setStyle({ height: this.maxHeight+'px' });
        this.containerLength = this.elements.length * (this.minWidth + this.margin * 2); // without padding
        this.container.setStyle({ width: this.containerLength+'px', height: this.maxHeight+'px', padding: '0px '+this.minWidth+'px' });
        this.setViewport();
        
        this.containerPositionMin = 0 - ((this.minWidth + this.margin * 2) / 2) - this.minWidth;
        this.containerPositionMax = 0 - this.containerLength + ((this.minWidth + this.margin * 2)  / 2) - this.minWidth;
        this.containerPosition = this.containerPositionMin + (this.viewport.width / 2);

//        console.log(this.containerPosition);
//        console.log('min: '+(this.containerPositionMin+(this.viewport.width/2))+' max: '+(this.containerPositionMax+(this.viewport.width/2))+' length: '+this.containerLength+' halfImage: '+((this.minWidth + this.margin * 2) / 2)+' padding: '+this.minWidth);
//        this.container.setStyle({ backgroundImage: 'url(images/test-background.png)' });

        this.show();

        this.controller = new MediaGalleryCarusellController(this, this.elements.length / 1000);
        this.controller.initializeSlider(this.containerPositionMax +  (this.viewport.width / 2), this.containerPositionMin +  (this.viewport.width / 2), this.containerPosition);
        this.controller.initializeNavigator(this.maxtime, this.acceleration, this.initvalue);

        tmcc.end('Carousel:create');
    },
    
    lowResourceLoaded: function(event) {
    	this.lowPreloadCounter--;
    	if(this.lowPreloadCounter == 0) {
    		this.elementsHigh.each(function(item) {
    			item.preload(this.highResourceLoaded.bindAsEventListener(this));
    		}.bind(this));
    	}
    },
    
    highResourceLoaded: function(event) {
    	this.highPreloadCounter--;
    },
    
    resourceLoaded: function(quality) {
    	var counter = 0;
    	
    	switch(quality) {
        case 'low': tmp = this.elementsLow; break;
        case 'high': tmp = this.elementsHigh; break;
        default: tmp = this.elementsLow;
        }
    	
    	for(var i = 0; i < tmp.length; i++) {
    		var item = tmp[i];
    		if(!item.loaded) {
    			counter++;
    		}
    	}
    	
		if(counter) {
			return false;
		}
		else {
			return true;
		}
    },
    
    destruct: function() {
    	this.elementsLow.each(function(item) { item.destruct(); });
    	this.elementsHigh.each(function(item) { item.destruct(); });
    	this.elements.each(function(item) { item.destruct(); });

    	this.elementsLow = new Array();
    	this.elementsHigh = new Array();
    	this.elements = new Array();
    	
        if(!this.container) {
            return;
        }
        
        this.container.childElements().each( function(item) { item.remove(); });
        
        this.dataLow = null;
        this.dataHigh = null;
        
        if(this.controller) {
            this.controller.destruct();
            this.controller = null;
        }
        
        this.view.destruct();
    },
    
    createImageInfo: function() {
    	if($$('.bottom .image-info').first()) {
    		return;
    	}
    	
    	var container = $$('.bottom').first();
		container.insert(new Element('div', { 'class':'image-info' }));
		
		container.childElements().last().insert(new Element('h4'));
		container.childElements().last().insert(new Element('p'));
		container.childElements().last().hide();
		container.childElements().last().setStyle({ borderBottom: 'none' });
    },
    
    showImageInfo: function() {
    	if(!$$('.bottom .image-info h4').first().innerHTML && !$$('.bottom .image-info p').first().innerHTML) {
    		return;
    	}
    	$$('.bottom .image-info').first().show();
    },
    
    hideImageInfo: function() {
    	$$('.bottom .image-info').first().hide();
    },
    
    setInfoData: function() {
		var data = this.MGallery.MGDContainer.getItem(this.getIndex());
        var container = $$('.bottom .image-info').first();
        container.childElements().first().update(data.title);
        container.childElements().last().update(data.description);
        if(!data.title && !data.description) {
        	this.hideImageInfo();
        }
        else {
        	this.showImageInfo();
        }
    },
    
    getIndex: function() {
        return this.controller.navigator.getIndexPosition();
    },
    
    stopAllMotion: function() {
    	if(this.pe) {
    		pe.stop();
    	}
    	if(this.controller && this.controller.navigator.pe) {
        	this.controller.navigator.pe.stop();
        	this.controller.navigator.notMovedYet = true;
    	}
    	if(this.controller && this.controller.pe) {
        	this.controller.pe.stop();
    	}
    },
    
    hide: function() {
    	this.stopAllMotion();
    	
        $$('.content-carousel').first().fade({ afterFinish: function() { this.visible = false; }.bind(this) });
        $$('.bottom').first().fade({ afterFinish: function() { this.visible = false; }.bind(this) });
    },
    
    show: function() {
        $$('.content-carousel').first().appear({ afterFinish: function() {
            this.visible = true;
            this.resize();
            this.controller.navigator.adjustInitValue();
        }.bind(this) });
        $$('.bottom').first().appear({ afterFinish: function() { this.visible = true; this.resize(); }.bind(this) });
    },
    
    move: function(distance) {
        tmc.add('Carousel:move');
        this.containerPosition += distance;
        this.motion = distance.abs().round();
        
//        if(this.viewport.width >= this.containerLength) {
//            this.containerPosition = 0;
//        }

        if(this.containerPosition > this.containerPositionMin + (this.viewport.width / 2)) {
            this.containerPosition = this.containerPositionMin + (this.viewport.width / 2);
        }
        else if(this.containerPosition < this.containerPositionMax +  (this.viewport.width / 2)) {
            this.containerPosition = this.containerPositionMax +  (this.viewport.width / 2);
        }

        this.virtualSlider.evalVisible(this.containerPosition);
        this.view.scaleImages();

        if(distance != 0) {
            this.controller.navigator.setCurrent(this.containerPosition);
        }

        this.view.draw();

        tmc.end('Carousel:move');
//        console.log('pos: '+this.containerPosition+' minPos: '+(this.containerPositionMin+(this.viewport.width / 2))+' maxPos: '+(this.containerPositionMax+(this.viewport.width / 2))+' to much left -> '+(this.containerPosition > (this.containerPositionMin+(this.viewport.width / 2)))+' to much right -> '+(this.containerPosition < (this.containerPositionMax+(this.viewport.width / 2))));
//        console.log('pos: '+this.containerPosition+' viewport->width: '+this.viewport.width);
    },
    
    evalAlpha: function(value) {
        var temp = (value * 0.8) * 10 + 2;
        temp = temp.round();
        
        return temp / 10;
    },
    
    getContainerLength: function() {
        var length = 0;
        
        this.elements.each( function (item){
            length += item.iwidth - (item.iwidth - this.minWidth) + this.margin * 2;
        }.bind(this));
        
        return length;
    },
    
    setPosition: function(value) {
        this.containerPosition = value;
        this.move(0);
    },
    
    setViewport: function() {
        this.viewport = {width:0, height:0};
        this.viewport.width = this.container.up('.image-container').getWidth();
        this.viewport.height = this.container.up('.image-container').getHeight();
    },
    
    resize: function() {
        var oldViewport = this.viewport;
        this.setViewport();
        
        if(oldViewport.width == this.viewport.width && oldViewport.height == this.viewport.height) {
        	return;       	
        }
        
        this.containerPosition += (this.viewport.width - oldViewport.width) / 2;
        this.view.initalizeElements();
        
        this.move(0);
        this.controller.navigator.resize();
    },
    
    getToObserve: function() {
        return this.container.up('div.content');
    }
});

var MediaGalleryCarusellSlider = Class.create({
    controller: null,
    container: null,
    object: null,
    
    initialize: function(start, end, value, controller) {
        this.controller = controller;
        this.createContainer();
        
        this.object = new Control.Slider($('handle'), $('slider'), {
            range: this.getRange(start, end),
            values: this.getValues(start, end),
            sliderValue: 0
        });
        this.object.options.onSlide = function(value) { this.controller.navigator.setTarget(value); }.bind(this);
        this.object.options.onChange = function(value) { this.controller.navigator.setTarget(value); }.bind(this);
    },
    
    createContainer: function() {
        var wrapper = new Element('div', { 'id':'slider' });
        var handle = new Element('div', { 'id':'handle' });
        $$('.bottom').first().insert(wrapper);
        
        this.container = $$('.bottom').first().childElements().first();
        this.container.insert(handle);
        this.container.writeAttribute('align', 'center');
        this.container.setStyle({ width: this.controller.MGCarusel.maxWidth+'px' });
        this.container.childElements().first().setStyle({ width: (this.controller.MGCarusel.maxWidth / this.controller.MGCarusel.elements.length).round()+'px' });
        
        this.controller.MGCarusel.createImageInfo();
    },
    
    getValues: function(start, end) {
        var range = end - start;
        var step = this.controller.MGCarusel.minWidth + this.controller.MGCarusel.margin * 2;
        
        return $R(0, range / step);
        
        var step = this.controller.MGCarusel.minWidth + this.controller.MGCarusel.margin * 2;
        var values = new Array();
        
        for(var i = start; i <= end; i+=step) {
            values.push(i);
        }
//        console.log('start: '+start+' -> '+values.first()+' end: '+end+' -> '+values.last());
        return values;
    },
    
    setHandle: function(value) {
        this.object.setValue(value);
    },
    
    getRange: function(start, end) {
        var range = end - start;
        var step = this.controller.MGCarusel.minWidth + this.controller.MGCarusel.margin * 2;
        
        return {start: 0, end: range / step};
    },
    
    updateOptions: function(start, end, value) {
        this.object.range.start = start;
        this.object.range.end = end;
        this.object.value = value;
    }
});

var MediaGalleryCarusellController = Class.create({
    pe: null,
    cursorPosition: null,
    originPosition: null,
    MGCarusel: null,
    factor: null,
    lastMotion: null,
    slider: null,
    navigator: null,
    
    initialize: function(carusell, factor) {
        this.MGCarusel = carusell;
        this.MGCarusel.getToObserve().observe('mousedown', this.activate.bindAsEventListener(this));
        this.MGCarusel.getToObserve().observe('mouseup', this.deactivate.bindAsEventListener(this));
        document.observe('mouseup', this.deactivate.bindAsEventListener(this));
        this.factor = factor;
        this.lastMotion = 0;
        this.setCenterPosition();
        this.cursorPosition = {x:0, y:0};
//        document.observe('mousemove', this.setCursorPosition.bindAsEventListener(this));
    },
    
    initializeSlider: function(start, end, value) {
        this.slider = new MediaGalleryCarusellSlider(start, end, value, this);
    },
    
    initializeNavigator: function(maxtime, acceleration, initvalue) {
        this.navigator = new MediaGalleryCarusellNavigator(maxtime, acceleration, initvalue, this);
    },
    
    destruct: function() {
    	if($$('.image-info').first()) {
    		$$('.image-info').first().remove();
    	}
    	
        this.slider.container.childElements().each(function(item) { item.remove(); });
        this.slider.container.remove();
    },

    activate: function(event) {
        if(this.pe) {
            this.deactivate(null);
        }
        
        return;

        this.MGCarusel.view.swapDataResource('low');
        this.originPosition = {x:0, y:0};
        this.originPosition = this.cursorPosition;
        
        this.pe = new PeriodicalExecuter( function(pe) {
            this.MGCarusel.move(this.evalMove());
        }.bind(this), this.frequency);
    },
    
    deactivate: function(event) {
        if(!this.pe) {
            return;
        }
//        console.log('lastMotion: '+this.lastMotion);

//        alert('mouseup');
        if(this.lastMotion){
            this.afterSwingMove();
        }
        else {
            this.pe.stop();
            if(!this.navigator.running) {
                this.MGCarusel.view.swapDataResource('high');
                this.MGCarusel.view.draw();
                this.navigator.setPosition(this.MGCarusel.containerPosition);
            }
        }
    },
    
    afterSwingMove: function() {
        this.pe.stop();
        
        this.pe = new PeriodicalExecuter(function(pe) {
            // Variable lastMotion nicht mehr gesetzt, warum ???
            if(this.lastMotion.abs() <= this.initvalue || this.lastMotion.abs() <= this.acceleration) {
                this.lastMotion = 0;
                this.deactivate();
            }
            else {
                this.lastMotion /= this.acceleration;
                this.MGCarusel.move(this.lastMotion);
            }
            if(!this.lastMotion)
                pe.stop();
//            console.log('lastMotion: '+this.lastMotion);
        }.bind(this), this.MGCarusel.frequency);
    },
    
    evalMove: function() {
        this.lastMotion = 0; //(this.cursorPosition.x - this.originPosition.x) * this.factor;
        var test = (this.cursorPosition.x - this.originPosition.x) * this.factor;
//        console.log((this.cursorPosition.x - this.originPosition.x) * this.factor);
        return (this.cursorPosition.x - this.originPosition.x) * this.factor; //this.lastMotion;
    },
    
    setCenterPosition: function() {
        var element = this.MGCarusel.getToObserve();
        var tempCumulativeOffset = Element.cumulativeOffset(element);

        var position = {x:0, y:0};
        position.x = tempCumulativeOffset.left + Element.getWidth(element) / 2;
        position.y = tempCumulativeOffset.top + Element.getHeight(element) / 2;

        this.originPosition = position;
    },
    
    setCursorPosition: function(lastCursorPosition) {
        this.cursorPosition = lastCursorPosition;
//        console.log(lastCursorPosition);
    },
    
    setPosition: function(index) {
        this.navigator.setIndexPosition(index);
    }
});

var MediaGalleryCarusellNavigator = Class.create({
    target: null,
    current: null,
    maxspeed: null,
    maxtime: null,
    acceleration: null,
    initvalue: null,
    slowingRange: null,
    running: null,
    targetIndex: null,
    adjusted: null,
    speed: null,
    pe: null,
    controller: null,
    initialized: null,
    notMovedYet: null,
    
    initialize: function(maxtime, acceleration, initvalue, controller) {
        this.controller = controller;
        this.maxspeed = 0;
        this.maxtime = maxtime;
        this.acceleration = acceleration;
        this.initvalue = initvalue;
        this.slowingRange = 0;
        this.running = false;
        this.speed = 0;
        this.current = this.controller.MGCarusel.containerPosition;
        this.target = this.current;
        this.initialized = true;
        this.notMovedYet = true;
    },
    
    activate: function() {
//    	console.profile();
        //this.slowingRange = 0;
        this.speed = this.initvalue;
        this.controller.MGCarusel.view.swapDataResource('low');
        
        if(this.target < this.current) {
            this.speed *= -1;
        }

        this.pe = new PeriodicalExecuter( this.move.bind(this), this.controller.MGCarusel.frequency);
        this.running = true;
        this.controller.MGCarusel.hideImageInfo();
    },
    
    deactivate: function() {
        this.controller.MGCarusel.view.swapDataResource('high');
        this.controller.MGCarusel.view.draw();
        this.running = false;
        this.pe.stop();
        this.controller.slider.setHandle(this.getIndexPosition());
    	tmc.end();
    	if(this.getIndexPosition() % 1 == 0) {
    		this.controller.MGCarusel.MGallery.MGSZMTag.embedSZM();
    	}
        this.controller.MGCarusel.setInfoData();
        this.controller.MGCarusel.showImageInfo();
//    	console.profileEnd();
//        console.log(this.time);
    },
    
    move: function(pe) {
    	tmc.add('Navigator:move');
//        if(this.speed.abs() > this.acceleration && this.speed.abs() > this.initvalue) {
//            console.log(this.target+' - '+this.current+' -> '+this.speed+' > '+this.slowingRange+' > '+(this.target - this.current).abs());
//        }

        if((this.target - this.current).abs() <= this.speed || (this.target - this.current).abs() <= this.initvalue * 2) {
            this.speed = this.target - this.current;
            this.controller.MGCarusel.move(this.speed);
            this.speed = 0;
            this.current = this.target;
        	tmc.end('Navigator:move');
            return this.deactivate();
        }

        if((this.target - this.current).abs() < this.slowingRange) {
            this.speed /= this.acceleration;
            
            if(!this.adjusted) {
                var range = this.target - this.current;
                
                this.current = this.target - (this.slowingRange * (range / range.abs()));
                
//                this.current = this.slowingRange * (this.current / this.current.abs());
//                console.log('current: '+this.current+' containerPosition: '+this.controller.MGCarusel.containerPosition+' slowingRange: '+this.slowingRange+' slowingRange -> '+(this.slowingRange * (this.current / this.current.abs())));
                this.controller.MGCarusel.containerPosition = this.current;
                this.adjusted = true;
            }
            
            if(this.speed.abs() < this.initvalue) {
                this.speed = this.initvalue * (this.speed / this.speed.abs());
            }
        }
        else {
            this.speed *= this.acceleration;
//            console.log(this.acceleration);
            
//            if(this.speed.abs() < this.maxspeed) {
//                this.slowingRange += this.speed.abs();
//            }        
//            else if(this.speed.abs() >= this.maxspeed) {
//                this.speed = this.maxspeed * (this.speed / this.speed.abs());
//            }
            if(this.speed.abs() >= this.maxspeed) {
                this.speed = this.maxspeed * (this.speed / this.speed.abs());
            }
        }

        if(this.speed.abs() > this.acceleration && this.speed.abs() > this.initvalue) {
            this.time += this.controller.MGCarusel.frequency;
        }
        
        this.controller.MGCarusel.move(this.speed);
    	tmc.end('Navigator:move');
    },
    
    preEvalMotion: function(initspeed) {
    	tmc.add('Navigator:preEvalMotion');
        this.time = 0;
        
        var slowingRange = 0;
        var totalRange = (this.target - this.current).abs();
        var target = this.target;
        var current = this.current;
        var step = this.controller.MGCarusel.frequency;
        var time = 0;
        var maxtime = this.maxtime;
        var speed = this.initvalue;
        var maxspeed = totalRange / (maxtime / step);
        
        do{
            speed *= this.acceleration;
            slowingRange += speed;
            time += step;
        } while(speed < maxspeed);
        
        maxspeed = speed;
        
        slowingRange = 0;
        while(speed > this.acceleration && speed > this.initvalue) {
            speed /= this.acceleration;
            slowingRange += speed;
//            console.log('slowingRange: '+slowingRange+' speed: '+speed);
        }

        this.slowingRange = slowingRange;
        this.maxspeed = maxspeed;
    	tmc.end('Navigator:preEvalMotion');
//        console.log('slowingRange: '+slowingRange+' maxspeed: '+maxspeed+' speed: '+speed+' totalRange: '+totalRange+' start: '+current+' end: '+target+' time: '+time);
    },
    
    resize: function() {
    	if(this.running) {
    		this.navigateTo(this.targetIndex);
    	}
    },

    revert: function(value) {
        var start = this.controller.slider.object.range.start;
        var end = this.controller.slider.object.range.end;
        var temp = 0 - end;
        
        end += temp;
        value += temp;
        start += temp;

        value = start - value;
        return value -= temp;
    },
    
    evalTarget: function(value) {
        var start = this.controller.MGCarusel.containerPositionMin+this.controller.MGCarusel.viewport.width/2;
        var step = this.controller.MGCarusel.minWidth + this.controller.MGCarusel.margin * 2;
        
        return start - step * value;
    },
    
    setPosition: function(value) {
        var start = this.controller.MGCarusel.containerPositionMin + (this.controller.MGCarusel.viewport.width / 2);
        var step = this.controller.MGCarusel.minWidth +  this.controller.MGCarusel.margin * 2;
        
        var tmp = value - start + step / 2;
        
        /* TODO
         * maybe its better to use the internal
         * getIndexPositon instead of the empty for loop
         */
        for(var position = 0, end = (tmp / step).abs(); position < end; position++) {
        }
        
        this.navigateTo(position);
        this.controller.slider.setHandle(position);
    },
    
    setTarget: function(value) {
        if(this.target == this.evalTarget(value)) {
            return;
        }

        this.navigateTo(value);
    },
    
    setIndexPosition: function(index) {
        this.navigateTo(index);
        this.controller.slider.setHandle(index);
    },
    
    getIndexPosition: function() {
        /* not accurate */
        var start = this.controller.MGCarusel.containerPositionMin + (this.controller.MGCarusel.viewport.width / 2);
        var step = this.controller.MGCarusel.minWidth +  this.controller.MGCarusel.margin * 2;
        
        var index = ((this.current - start) / step).abs();
//        console.log('index: '+index+' current: '+this.current+' minP: '+this.controller.MGCarusel.containerPositionMin+' viewPH: '+(this.controller.MGCarusel.viewport.width / 2)+' step: '+step);
        return ((this.current - start) / step).abs();
    },
    
    // readjusts the slider position when the viewport is fully loaded
    adjustInitValue: function() {
        if(this.initialized) {
            this.current += this.controller.MGCarusel.viewport.width / 2;
            if(this.running) {
                this.target += this.controller.MGCarusel.viewport.width / 2;
            }
            this.initialized = false;
        }
    },
    
    navigateTo: function(value) {
    	this.targetIndex = value;
    	tmc.add('Navigator:navigateTo');
//        console.log('navigateTo -> value: '+value+' pos: '+this.evalTarget(value));
//        var temp = this.controller.MGCarusel.virtualSlider;
//        console.log('start: '+temp.virtualStart+' end: '+temp.virtualEnd+' current: '+(temp.virtualOffset / (this.controller.MGCarusel.minWidth + this.controller.MGCarusel.margin * 2)).round()+' offset: '+temp.virtualOffset+' modifier: '+temp.modifier);
        this.target = this.evalTarget(value);
        this.adjusted = false;
        this.preEvalMotion(this.speed);
        if(this.target != this.current && this.running === false) {
            this.activate();
            this.notMovedYet = true;
        }
        else if((this.target - this.current).abs() <= this.speed.abs()) {
            this.current = this.target;
            this.controller.MGCarusel.move(this.target - this.current);
            this.deactivate;
            if(this.notMovedYet === true) {
                this.controller.MGCarusel.MGallery.MGSZMTag.embedSZM();
                this.notMovedYet = false;
            }
        }
        else {
            if(this.target - this.current > 0 && this.speed < 0) {
                this.speed *= -1;
            }
            else if(this.target - this.current < 0 && this.speed > 0) {
                this.speed *= -1;
            }
            this.notMovedYet = true;
        }
    },
    
    stop: function() {
        this.pe.stop();
    },
    
    setCurrent: function(value) {
        this.current = value;
    }
});

var MediaGalleryPreloader = Class.create({
	stack: null,
	queue: null,
	abortedqueue: null,
	subqueue: null,
	loaded: null,
	index: null,
	abortedindex: null,
	subindex: null,
	max: null,
	frequency: null,
	pe: null,
	running: null,
	container: null,
	changingIcon: null,
	
	initialize: function(max, frequency) {
		this.index = 0;
		this.subindex = 0;
		this.current = 0;
		this.max = max;
		this.frequency = frequency;

		this.stack = new Array();
		this.queue = new Array();
		this.abortedqueue = new Array();
		this.subqueue = new Array();
		this.loaded = new Hash();
	},
	
	add: function(item) {
		this.queue.push(item);
		
		if(!this.running) {
			this.start();
		}
	},
	
	addSub: function(item) {
		this.subqueue.push(item);
		
		if(!this.running) {
			this.start();
		}
	},
	
	start: function() {
		if(this.pe) {
			this.pe.stop();
		}
		
		this.pe = new PeriodicalExecuter(this.manageStack.bind(this), this.frequency);
		this.running = true;
	},
	
	stop: function() {
		if(this.pe) {
			this.pe.stop();
		}
		
		this.running = false;
	},
	
	destruct: function() {
		this.queue = new Array();
		this.abortedqueue = new Array();
		this.subqueue = new Array();
		this.index = 0;
		this.subindex = 0;
	},
	
	manageStack: function() {
		this.addLoaded(this.stack.findAll(function(img) { return img.loaded(); }));
		this.stack = this.stack.reject(function(img) { return img.loaded(); });

		// Preloading for current mode
		while(this.stack.length < this.max && this.queue.length > 0) {
			var toAdd = this.queue.shift();
			this.index++;
			if(toAdd === null) {
				break;
			}
			if(this.checkLoaded(toAdd.file)) {
				continue;
			}
			if(!this.stack.any(function(image) { return image.file == toAdd.file })) {
				this.stack.push(toAdd);
				this.stack.last().preloadInit();
			}
			else {
				toAdd.preloadInit();
				//	console.log('file: '+toAdd.file+' already preloading');
			}
		}
		
		// Preloading for aborted modes
		while(this.stack.length < this.max && this.abortedqueue.length > 0) {
			var toAddAborted = this.abortedqueue.shift();
			this.abortedindex++;
			if(toAddAborted === null) {
				break;
			}
			if(this.checkLoaded(toAddAborted.file)) {
				continue;
			}
			if(!this.stack.any(function(image) { return image.file == toAddAborted.file })) {
				this.stack.push(toAddAborted);
				this.stack.last().preloadInit();
			}
			else {
				toAddAborted.preloadInit();
				//	console.log('file: '+toAdd.file+' already preloading');
			}
		}
		
		// Preloading for other modes
		// only if the current mode is preloaded already
		while(this.stack.length < this.max && this.subqueue.length > 0) {
			var toAddSub = this.subqueue.shift();
			this.subindex++;
			if(toAddSub === null) {
				break;
			}
			if(this.checkLoaded(toAddSub.file)) {
				continue;
			}
			if(!this.stack.any(function(image) { return image.file == toAddSub.file })) {
				this.stack.push(toAddSub);
				this.stack.last().preloadInit();
			}
			else {
				toAddSub.preloadInit();
				// console.log('file: '+toAdd.file+' already preloading');
			}
		}
		
		if(this.container) {
			if(this.stack.length > 0 && this.changingIcon === false && this.container.getStyle('display') == 'none') {
				this.container.appear({ duration: 0.5, afterFinish: function() { this.changingIcon = false; }.bind(this) });
				this.changingIcon = true;
			}
			else if(this.stack.length === 0 && this.changingIcon === false && this.container.getStyle('display') == 'block') {
				this.container.fade({ duration: 0.5, afterFinish: function() { this.changingIcon = false; }.bind(this) });
				this.changingIcon = true;
				this.stop();
				$$('img').each(function(item) {
					//dataCollector += item.readAttribute('width')+' - '+item.readAttribute('height')+'\n';
				});
			}
		}
	},
	
	initQueue: function() {
		while(this.queue.length > 0) {
			this.abortedqueue.push(this.queue.shift());
		}
	},
    
    preloadContent: function() {
    	var modes = new Array('browseBig', 'browseSmall', 'carouselHigh', 'carouselLow', 'detail');
    	
    	for(var i = 0; i < modes.length; i++) {
    		if(mediaGallery.mode == 'detail' && (modes[i] == 'detail')) {
    			continue;
    		}
    		else if(mediaGallery.mode == 'browse' && (modes[i] == 'browseBig' || modes[i] == 'browseSmall')) {
    			continue;
    		}
    		else if(mediaGallery.mode == 'carousel' && (modes[i] == 'carouselHigh' || modes[i] == 'carouselLow')) {
    			continue;
    		}
    		
    		var tmp = data.getData(modes[i]);
    		tmp.each(function(item) {
    			this.addSub(new MediaGalleryImage(item));
    		}.bind(this));
    	}
    	
    	this.start();
    },
    
    setContainer: function(container) {
    	this.container = container;
    	this.changingIcon = false;
    },
	
	addLoaded: function(loaded) {
		loaded.each(function(item) {
			this.loaded.set(item.file, true);
		}.bind(this));
	},
	
	checkLoaded: function(file) {
		return this.loaded.get(file);
	},
	
	nextItem: function() {
		if(this.queue[this.index] && !Object.isUndefined(this.queue[this.index])) {
			this.index++;
			return this.queue[this.index-1];
		}
		
		return null;
	},
	
	nextAbortedItem: function() {
		if(this.abortedqueue[this.abortedindex] && !Object.isUndefined(this.abortedqueue[this.abortedindex])) {
			this.abortedindex++;
			return this.abortedqueue[this.abortedindex-1];
		}
		
		return null;
	},
	
	nextSubItem: function() {
		if(this.subqueue[this.subindex] && !Object.isUndefined(this.subqueue[this.subindex])) {
			this.subindex++;
			return this.subqueue[this.subindex-1];
		}
		
		return null;
	}
});

var MediaGallery = Class.create({
    MGOverlay: null,
    MGDContainer: null,
    MGDetail: null,
    MGBrowse: null,
    MGCarousel: null,
    MGCookie: null,
    MGSZMTag: null,
    controller: null,
    index: null,
    mode: null,
    galleryID: null,
    changing: null,
    loaded: null,
    
    initialize: function(MGDContainer, galleryID, config, toolbarImages) {
        this.toolbarImages = toolbarImages;
        this.changing = false;
        this.loaded = false;
        this.MGDContainer = MGDContainer;
        this.galleryID = galleryID;
        this.MGCookie = new MediaGalleryCookie(this.galleryID);
        this.MGBrowse = new MediaGalleryBrowse(config.maxWidth, config.maxHeight, config.containerWidth, config.containerHeight, this);
        this.MGDetail = new MediaGalleryDetailViewer(config.detailWidth, config.detailHeight, this);
        this.MGCarousel = new MediaGalleryCarusell(config.maxWidth, config.maxHeight, config.minWidth, config.minHeight, config.range, config.margin, config.maxtime, config.acceleration, config.initspeed, config.frequency, this);
        this.MGOverlay = new MediaGalleryOverlay(config.overlayOpacity, this);
        this.MGSZMTag = new MediaGallerySZMTag(config.szmcode, config.szmcomment, config.szmmode);
    },
    
    start: function() {
        this.MGOverlay.start();
    },
    
    load: function(loading) {
        if(loading) {
            this.MGOverlay.startLoadingIndicator();
        }
        else {
        	this.MGOverlay.loaderToClose = true;
        	if(this.MGOverlay.loaderOpen === true) {
        		this.MGOverlay.endLoadingIndicator();
        	}
        }
    },

    // gets called as soon as the DataContainer is updated
    // and the loading indicator is hidden
    initiate: function() {
        if(this.galleryID != this.MGDContainer.galleryID) {
            this.galleryID = this.MGDContainer.galleryID;
            this.MGCookie.galleryID = this.galleryID;
            this.destruct();
        }
        var config = this.MGCookie.restoreConfigFromCookie();
        if(config !== null) {
            this.mode = config.mode;
            this.index = config.index;
        }
        mediaGallery.create($$('.top').first(), this.mode, this.index, this.galleryID);
        this.go();
        preloader.preloadContent();
    },
    
    create: function(container, mode, index, galleryID) {
        this.mode = mode ? mode : null;
        this.index = index ? index : 0;
        this.galleryID = galleryID ? galleryID : null;
        
        this.controller = new MediaGalleryController(this);
        this.controller.create($$('.top').first());
//        this.go();
    },
    
    setID: function(id) {
    	this.galleryID = id;
    	this.MGCookie.galleryID = id;
    },
    
    go: function() {
        switch(this.mode) {
        case 'browse': this.goBrowse(this.index); break;
        case 'carousel': this.goCarousel(this.index); break;
        case 'detail': this.goDetail(this.index); break;
        default: this.goBrowse(this.index);
        }
    },
    
    goBrowse: function(index){
        if(!this.MGBrowse.container || !this.MGBrowse.MGBDetail) {
            this.MGBrowse.create($$('div.content-browse').first(), this.toolbarImages, index);
        }
        else {
            this.MGBrowse.setIndex(index);
        }
        
        this.MGBrowse.show();
        this.mode = 'browse';
    },
    
    goCarousel: function(index){
        if(!this.MGCarousel.controller) {
            this.MGCarousel.create($$('div.slider').first());
        }
        this.MGCarousel.controller.setPosition(index);
        this.MGCarousel.show();
        this.mode = 'carousel';
    },
    
    goDetail: function(index){
        if(!this.MGDetail.controller) {
            this.MGDetail.setIndex(index);
            this.MGDetail.create($$('.content-detail').first(), this.toolbarImages);
        }
        this.MGDetail.setIndex(index);
        this.MGDetail.show();
        this.MGDetail.setInfoData();
        this.mode = 'detail';
    },
    
    resize: function() {
        if(this.controller) {
            this.controller.resize();
        }
    },
    
    destruct: function() {
        this.MGDetail.destruct();
        this.MGBrowse.destruct();
        this.MGCarousel.destruct();
        preloader.destruct();
    },
    
    setCursorPosition: function(value) {
        if(this.controller) {
            this.controller.setCursorPosition(value);
        }
    }
});

var MediaGalleryController = Class.create({
    MGallery: null,
    container: null,
    mode: null,
    pe: null,
    
    initialize: function(MGallery) {
        this.MGallery = MGallery;
    },
    
    create: function(container) {
        this.container = container;
        this.container.childElements().each(function(item) { item.remove(); });
        
        var toolbar = new Element('div', { 'class':'toolbar from-top' });

        var dl = new Element('dl');
        var dt = new Element('dt');
        var dd = new Element('dd');

        var browse = new Element('img', { 'width':'16', 'height':'16', 'src':this.MGallery.toolbarImages[5] });
        var carousel = new Element('img', { 'width':'16', 'height':'16', 'src':this.MGallery.toolbarImages[6] });
        var end = new Element('img', { 'width':'16', 'height':'16', 'src':this.MGallery.toolbarImages[7] });
        var preload = new Element('img', { 'width':'41', 'height':'34', 'src':this.MGallery.toolbarImages[8] });
        
        var tmp = dl.clone();
        tmp.insert(dt.clone().insert(end));
        tmp.insert(dd.clone().update('Beenden'));
        toolbar.insert(tmp);
        
        var tmp = dl.clone();
        tmp.insert(dt.clone().insert(carousel));
        tmp.insert(dd.clone().update('Karussell'));
        toolbar.insert(tmp);
        
        var tmp = dl.clone();
        tmp.insert(dt.clone().insert(browse));
        tmp.insert(dd.clone().update('&Uuml;bersicht'));
        toolbar.insert(tmp);
        
        var tmp = dl.clone();
        tmp.setStyle({ float: 'left' });
        tmp.insert(dt.clone().insert(preload));
        toolbar.insert(tmp);
        toolbar.childElements().last().hide();
        preloader.setContainer(toolbar.childElements().last());
        
        this.container.insert(toolbar);

        this.container.down().childElements()[0].observe('click', this.goEnd.bindAsEventListener(this));
        this.container.down().childElements()[1].observe('click', this.goCarousel.bindAsEventListener(this));
        this.container.down().childElements()[2].observe('click', this.goBrowse.bindAsEventListener(this));
    },
    
    goBrowse: function(event) {
        if(this.changing === true || this.MGallery.mode == 'browse') {
            return;
        }
        
        this.mode = 'browse';
        this.hide();
    },
    
    goCarousel: function(event) {
        if(this.changing === true || this.MGallery.mode == 'carousel') {
            return;
        }
        
        this.mode = 'carousel';
        this.hide();
    },
    
    goDetail: function() {
        if(this.changing === true || this.MGallery.mode == 'detail') {
            return;
        }
        
        this.MGallery.MGDetail.goBackTo = this.MGallery.mode;
        this.mode = 'detail';
        this.hide();
    },
    
    goEnd: function(event) {
        if(this.mode === null) {
            if(this.MGallery.mode !== null) {
                this.mode = this.MGallery.mode;
            }
        }
        this.transportIndex();
        this.MGallery.MGCookie.storeConfigInCookie(this.index, this.mode);

        this.MGallery.MGBrowse.hide();
        this.MGallery.MGCarousel.hide();
        this.MGallery.MGDetail.hide();
        this.container.up().fade({ afterFinish: function() { this.MGallery.destruct(); this.container.childElements().each(function(item){ item.remove(); }); this.MGallery.MGOverlay.end(); }.bind(this) });
    },
    
    setMode: function(mode) {
        this.mode = mode;
    },
    
    transportIndex: function() {
        switch(this.MGallery.mode) {
        case 'browse': this.index = this.MGallery.MGBrowse.getIndex(); break;
        case 'carousel': this.index = this.MGallery.MGCarousel.getIndex(); break;
        case 'detail': this.index = this.MGallery.MGDetail.getIndex(); break;
        default: this.index = this.MGallery.index;
        }
    },
    
    resize: function() {
        var mode = this.mode;
        
        if(!mode) {
            mode = this.MGallery.mode;
        }
        
        switch(mode) {
        case 'browse': this.MGallery.MGBrowse.resize(); break;
        case 'carousel': this.MGallery.MGCarousel.resize(); break;
        case 'detail': this.MGallery.MGDetail.resize(); break;
        }
        this.MGallery.MGOverlay.resize();
    },
    
    hide: function() {
    	preloader.initQueue();
        this.changing = true;
        this.transportIndex();
        switch(this.MGallery.mode) {
        case 'browse': this.MGallery.MGBrowse.hide(); break;
        case 'carousel': this.MGallery.MGCarousel.hide(); break;
        case 'detail': this.MGallery.MGDetail.hide(); break;
        default: this.changing = false; this.show(); return;
        }
        
        this.pe = new PeriodicalExecuter(function(pe) {
            switch(this.MGallery.mode) {
                case 'browse': if(this.MGallery.MGBrowse.visible === false) {
                    this.changing = false;
                    this.pe.stop();
                    this.show();
                } break;
                case 'carousel': if(this.MGallery.MGCarousel.visible === false) {
                    this.changing = false;
                    this.pe.stop();
                    this.show();
                } break;
                case 'detail': if(this.MGallery.MGDetail.visible === false) {
                    this.changing = false;
                    this.pe.stop();
                    this.show();
                } break;
                default:
                    this.changing = false;
                    this.pe.stop();
                    this.show();
            }
        }.bind(this), 0.05);
    },
    
    show: function() {
        this.MGallery.MGCookie.storeConfigInCookie(this.index, this.mode);
        this.changing = true;
        this.pe = new PeriodicalExecuter(function(pe) {
            switch(this.mode) {
            case 'browse': if(this.MGallery.MGBrowse.visible === true) {
                this.changing = false;
                this.pe.stop();
            } break;
            case 'carousel': if(this.MGallery.MGCarousel.visible === true) {
                this.changing = false;
                this.pe.stop();
            } break;
            case 'detail': if(this.MGallery.MGDetail.visible === true) {
                this.changing = false;
                this.pe.stop();
            } break;
            default:
                this.changing = false;
                this.pe.stop();
            }
        }.bind(this), 0.05);
        
        switch(this.mode) {
        case 'browse': this.MGallery.goBrowse(this.index); break;
        case 'carousel': this.MGallery.goCarousel(this.index); break;
        case 'detail': this.MGallery.goDetail(this.index); break;
        default: this.MGallery.goBrowse(this.index);
        }
    },
    
    setCursorPosition: function(lastCursorPosition) {
        if(this.mode == 'carousel' && this.MGallery.MGCarousel.controller) {
            this.MGallery.MGCarousel.controller.setCursorPosition(lastCursorPosition);
        }
    }
});

var MediaGallerySZMTag = Class.create({
    identifier: null,
    type: null,
    code: null,
    comment: null,
    mode: null,
    
    debugpath: 'typo3conf/ext/fb_mediagallery/pi2/prototype',
    debugfile: 'test.php',
    debugurl: 'www.ffn.de',
    
    initialize: function(code, comment, mode) {
        this.identifier = 'ffn';
        this.type = mode;
        this.code = code;
        this.comment = comment;
        this.mode = mode;
    },
    
    createSrc: function(ref) {
        var tag = "http://"+this.identifier+".ivwbox.de/cgi-bin/ivw/"+this.type+"/"+this.code+";"+this.comment+"?r="+ref+"&d="+(Math.random()*100000)+"";
        return tag;
    },
    
    createDebugSrc: function(ref) {
        var values = '&identifier='+this.identifier+'&type='+this.type+'&code='+this.code+'&comment='+this.comment;
        
        var src = "http://"+this.debugurl+"/"+this.debugpath+"/"+this.debugfile+"?r="+ref+"&d="+(Math.random()*100000)+values;
        return src;
    },
    
    createTag: function(src) {
        var tag = new Element('img', { 'class':'szm', 'src':src, 'alt':'szmtag', 'name':'szmimage', 'widht':'1', 'height':'1'  });
        return tag;
    },
    
    embedSZM: function() {
        var src;
        var ref = escape(document.referrer);
        
        if(!ref) {
            ref = 'noref';
        }

        switch(this.mode){
        case 'CP': this.type = 'CP'; src = this.createSrc(ref); break;
        case 'NP': this.type = 'NP'; src = this.createSrc(ref); break;
        case 'XP': this.type = 'XP'; src =  this.createSrc(ref); break;
        case 'debug': this.type = 'XP'; src = this.createDebugSrc(ref); break;
        case 'test': this.type = 'XP'; src = this.createSrc(ref); break;
        case 'normal': this.type = 'CP'; src =  this.createSrc(ref); break;
        default: src =  this.createDebugSrc(ref); break;
        }
        
        $$('.szmcontainer').first().childElements().each(function(item) {
            item.remove();
        });
        $$('.szmcontainer').first().insert(this.createTag(src));
    }
});

var MediaGalleryLoader = Class.create({
    galleryID: null,
    galleryTitle: null,
    pageUID: null,
    container: null,
    request: null,
    url: '',
    
    initialize: function(container, id, uid) {
        this.container = container;
        this.galleryID = id;
        this.pageUID = uid;

        this.container.writeAttribute('href', 'javascript:;');

        this.container.observe('click', this.activate.bindAsEventListener(this));
        document.observe('mgl:abort:'+this.galleryID, this.deactivate.bindAsEventListener(this));

        /*var img = this.container.select('img').first();
        var h3 = this.container.select('h3').first();
        
        img.observe('click', this.activate.bindAsEventListener(this));
        img.setStyle({ cursor: 'pointer' });
        h3.observe('click', this.activate.bindAsEventListener(this));
        h3.update('');
        h3.insert(new Element('a', { 'href':'javascript:;' }).update(''+this.galleryTitle+''));
        h3.setStyle({ cursor: 'pointer' });*/
    },
    
    activate: function(event) {
        mediaGallery.setID(this.galleryID);
        mediaGallery.start();
        requestOptions = { 
            onSuccess: function(response) { this.processData(response.responseText); }.bind(this),
//            onComplete: function(response) { this.running = false; $$('.'+elementClass).first().setStyle({ border: 'none' }); }.bind(this),
            onFailure: function(response) { this.loadingFailed(response); }.bind(this)
//            onCreate: function(response) { this.running = true; $$('.'+elementClass).first().setStyle({ border: 'solid 1px #ffff00' }); }.bind(this)
        };
        
        this.request = new Ajax.Request(this.url+'?eID=loadGallery&gallery='+this.galleryID+'&uid='+this.pageUID, requestOptions);
        //alert('galleryID: '+this.galleryID+' galleryTitle: '+this.galleryTitle+'');
    },
    
    deactivate: function() {
    	if(this.request) {
    		this.request.transport.abort();
    	}
    },
    
    /* This function is
     * accessing global variables
     * not so cool :(
     */
    processData: function(response) {
        data.loadGallery(response);
        mediaGallery.load(false);
    },
    
    loadingFailed: function(response) {
        mediaGallery.MGOverlay.loadingFailed(response);
    }
});

var StaticMediaGalleryImage = Class.create({
	images: null,
	frequency: null,
	pe: null,
	running: null,
	
	initialize: function(frequency) {
		this.frequency = frequency;
		this.images = new Array();
	},
	
	add: function(image) {
		this.images.push(image);
		if(!this.pe || !this.running) {
	        onloadChecker.start();
		}
	},
	
	start: function() {
		if(this.pe) {
			this.pe.stop();
		}

		this.running = true;
		this.pe = new PeriodicalExecuter(this.checkLoadState.bind(this), this.frequency);
	},
	
	checkLoadState: function() {
		this.images.each(function(item, index) {
			if(!item) {
				return;
			}
			
			if(item.loaded()) {
				if(Object.isFunction(item.image.onload)) {
					item.image.onload();
				}
				this.images[index] = null;
			}
			
		}.bind(this));
		this.images = this.images.findAll(function(item) { return item !== null; });
		
		if (this.images.length == 0) {
			this.stop();
			//Event.fire(document, 'staticMediaGalleryImage:allLoaded');
		}
	},
	
	stop: function() {
		if(this.pe && this.running) {
			this.pe.stop();
		}
		this.running = false;
	}
});

function getCursorPosition(e) {
    e = e || window.event;
    var cursor = {x:0, y:0};
    if (e.pageX || e.pageY) {
        cursor.x = e.pageX;
        cursor.y = e.pageY;
    } 
    else {
        var de = document.documentElement;
        var b = document.body;
        cursor.x = e.clientX + 
            (de.scrollLeft || b.scrollLeft) - (de.clientLeft || 0);
        cursor.y = e.clientY + 
            (de.scrollTop || b.scrollTop) - (de.clientTop || 0);
    }
    
    return cursor;
}

Event.observe(document, 'dom:loaded', function(event) {
    $$('a').each(function(item) {
        if(item.hasAttribute('rel') && item.hasAttribute('rev') && item.readAttribute('rel') == 'mediagallery') {
            var id = item.readAttribute('rev');
            new MediaGalleryLoader(item, id, pageUid);
        }
    });

    data = new MediaGalleryDataContainer();
    mediaGallery = new MediaGallery(data, data.galleryID, MediaGalleryConfiguration, toolbarImages);
    preloader = new MediaGalleryPreloader(MediaGalleryConfiguration.maxSimultanouslyLoading, MediaGalleryConfiguration.frequency);
    onloadChecker = new StaticMediaGalleryImage(MediaGalleryConfiguration.frequency);
    
    Event.observe(window, 'resize', function(event) {
            mediaGallery.resize();
    });

    Event.observe(document, 'mousemove', function(event) {
        //lastCursorPosition = getCursorPosition(event);
        //mediaGallery.setCursorPosition(lastCursorPosition);
    });
});

var MediaGalleryConfiguration = {};
var WeatherQuickOverview = Class.create({
	container: null,
	slider: null,
	previous: null,
	next: null,
	itemWidth: null,
	position: 0,
	duration: 0.6,
	running: false,
	
	initialize: function(container) {
		this.container = container;
		this.slider = this.container.select('.weather-quick-overview-slider').first();

		this.itemWidth = this.slider.down().getWidth();
		this.slider.setStyle({ width: this.itemWidth*this.slider.childElements().length+'px' });

		this.previous = this.container.select('.weather-quick-overview-navigation .previous').first();
		this.next = this.container.select('.weather-quick-overview-navigation .next').first();

		this.next.observe('click', this.nextItem.bindAsEventListener(this));
		this.previous.observe('click', this.previousItem.bindAsEventListener(this));
		this.checkAvailability();
	},
	
	checkAvailability: function() {
		if(this.position <= this.slider.childElements().length * this.itemWidth * -1 + this.itemWidth) {
			this.next.hide();
		}
		else {
			this.next.show();
		}
		if(this.position >= 0) {
			this.previous.hide();
		}
		else {
			this.previous.show();
		}
	},
	
	nextItem: function(event) {
		if(this.running) {
			return;
		}
		this.running = true;
		this.slider.morph('left: '+(this.position-this.itemWidth)+'px;', { duration: this.duration, afterFinish: function(event) {
			this.running = false;
			this.checkAvailability();
		}.bind(this) });
		this.position -= this.itemWidth;
	},
	
	previousItem: function(event) {
		if(this.running) {
			return;
		}
		
		this.running = true;
		this.slider.morph('left: '+(this.position+this.itemWidth)+'px;', { duration: this.duration, afterFinish: function(event) {
			this.running = false;
			this.checkAvailability();
		}.bind(this) });
		this.position += this.itemWidth;
	}
});

Event.observe(document, 'dom:loaded', function(event) {
	$$('.weather-quick-overview-container').each(function(item) {
		new WeatherQuickOverview(item);
	});
});