Team:Utrecht/Template:Prototypejs/Javascript

/* Prototype JavaScript framework, version 1.7.2

*  (c) 2005-2010 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: '1.7.2',
 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/.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'),
         form = document.createElement('form'),
         isSupported = false;
     if (div['__proto__'] && (div['__proto__'] !== form['__proto__'])) {
       isSupported = true;
     }
     div = form = null;
     return isSupported;
   })()
 },
 ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script\\s*>',
 JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,
 emptyFunction: function() { },
 K: function(x) { return x }

};

if (Prototype.Browser.MobileSafari)

 Prototype.BrowserFeatures.SpecificElementExtensions = false;

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

var Class = (function() {

 var IS_DONTENUM_BUGGY = (function(){
   for (var p in { toString: 1 }) {
     if (p === 'toString') return false;
   }
   return true;
 })();
 function subclass() {};
 function create() {
   var parent = null, properties = $A(arguments);
   if (Object.isFunction(properties[0]))
     parent = properties.shift();
   function klass() {
     this.initialize.apply(this, arguments);
   }
   Object.extend(klass, Class.Methods);
   klass.superclass = parent;
   klass.subclasses = [];
   if (parent) {
     subclass.prototype = parent.prototype;
     klass.prototype = new subclass;
     parent.subclasses.push(klass);
   }
   for (var i = 0, length = properties.length; i < length; i++)
     klass.addMethods(properties[i]);
   if (!klass.prototype.initialize)
     klass.prototype.initialize = Prototype.emptyFunction;
   klass.prototype.constructor = klass;
   return klass;
 }
 function addMethods(source) {
   var ancestor   = this.superclass && this.superclass.prototype,
       properties = Object.keys(source);
   if (IS_DONTENUM_BUGGY) {
     if (source.toString != Object.prototype.toString)
       properties.push("toString");
     if (source.valueOf != Object.prototype.valueOf)
       properties.push("valueOf");
   }
   for (var i = 0, length = properties.length; i < length; i++) {
     var property = properties[i], value = source[property];
     if (ancestor && Object.isFunction(value) &&
         value.argumentNames()[0] == "$super") {
       var method = value;
       value = (function(m) {
         return function() { return ancestor[m].apply(this, arguments); };
       })(property).wrap(method);
       value.valueOf = (function(method) {
         return function() { return method.valueOf.call(method); };
       })(method);
       value.toString = (function(method) {
         return function() { return method.toString.call(method); };
       })(method);
     }
     this.prototype[property] = value;
   }
   return this;
 }
 return {
   create: create,
   Methods: {
     addMethods: addMethods
   }
 };

})(); (function() {

 var _toString = Object.prototype.toString,
     _hasOwnProperty = Object.prototype.hasOwnProperty,
     NULL_TYPE = 'Null',
     UNDEFINED_TYPE = 'Undefined',
     BOOLEAN_TYPE = 'Boolean',
     NUMBER_TYPE = 'Number',
     STRING_TYPE = 'String',
     OBJECT_TYPE = 'Object',
     FUNCTION_CLASS = '[object Function]',
     BOOLEAN_CLASS = '[object Boolean]',
     NUMBER_CLASS = '[object Number]',
     STRING_CLASS = '[object String]',
     ARRAY_CLASS = '[object Array]',
     DATE_CLASS = '[object Date]',
     NATIVE_JSON_STRINGIFY_SUPPORT = window.JSON &&
       typeof JSON.stringify === 'function' &&
       JSON.stringify(0) === '0' &&
       typeof JSON.stringify(Prototype.K) === 'undefined';


 var DONT_ENUMS = ['toString', 'toLocaleString', 'valueOf',
  'hasOwnProperty', 'isPrototypeOf', 'propertyIsEnumerable', 'constructor'];
 var IS_DONTENUM_BUGGY = (function(){
   for (var p in { toString: 1 }) {
     if (p === 'toString') return false;
   }
   return true;
 })();
 function Type(o) {
   switch(o) {
     case null: return NULL_TYPE;
     case (void 0): return UNDEFINED_TYPE;
   }
   var type = typeof o;
   switch(type) {
     case 'boolean': return BOOLEAN_TYPE;
     case 'number':  return NUMBER_TYPE;
     case 'string':  return STRING_TYPE;
   }
   return OBJECT_TYPE;
 }
 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(value) {
   return Str(, { : value }, []);
 }
 function Str(key, holder, stack) {
   var value = holder[key];
   if (Type(value) === OBJECT_TYPE && typeof value.toJSON === 'function') {
     value = value.toJSON(key);
   }
   var _class = _toString.call(value);
   switch (_class) {
     case NUMBER_CLASS:
     case BOOLEAN_CLASS:
     case STRING_CLASS:
       value = value.valueOf();
   }
   switch (value) {
     case null: return 'null';
     case true: return 'true';
     case false: return 'false';
   }
   var type = typeof value;
   switch (type) {
     case 'string':
       return value.inspect(true);
     case 'number':
       return isFinite(value) ? String(value) : 'null';
     case 'object':
       for (var i = 0, length = stack.length; i < length; i++) {
         if (stack[i] === value) {
           throw new TypeError("Cyclic reference to '" + value + "' in object");
         }
       }
       stack.push(value);
       var partial = [];
       if (_class === ARRAY_CLASS) {
         for (var i = 0, length = value.length; i < length; i++) {
           var str = Str(i, value, stack);
           partial.push(typeof str === 'undefined' ? 'null' : str);
         }
         partial = '[' + partial.join(',') + ']';
       } else {
         var keys = Object.keys(value);
         for (var i = 0, length = keys.length; i < length; i++) {
           var key = keys[i], str = Str(key, value, stack);
           if (typeof str !== "undefined") {
              partial.push(key.inspect(true)+ ':' + str);
            }
         }
         partial = '{' + partial.join(',') + '}';
       }
       stack.pop();
       return partial;
   }
 }
 function stringify(object) {
   return JSON.stringify(object);
 }
 function toQueryString(object) {
   return $H(object).toQueryString();
 }
 function toHTML(object) {
   return object && object.toHTML ? object.toHTML() : String.interpret(object);
 }
 function keys(object) {
   if (Type(object) !== OBJECT_TYPE) { throw new TypeError(); }
   var results = [];
   for (var property in object) {
     if (_hasOwnProperty.call(object, property))
       results.push(property);
   }
   if (IS_DONTENUM_BUGGY) {
     for (var i = 0; property = DONT_ENUMS[i]; i++) {
       if (_hasOwnProperty.call(object, property))
         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) === ARRAY_CLASS;
 }
 var hasNativeIsArray = (typeof Array.isArray == 'function')
   && Array.isArray([]) && !Array.isArray({});
 if (hasNativeIsArray) {
   isArray = Array.isArray;
 }
 function isHash(object) {
   return object instanceof Hash;
 }
 function isFunction(object) {
   return _toString.call(object) === FUNCTION_CLASS;
 }
 function isString(object) {
   return _toString.call(object) === STRING_CLASS;
 }
 function isNumber(object) {
   return _toString.call(object) === NUMBER_CLASS;
 }
 function isDate(object) {
   return _toString.call(object) === DATE_CLASS;
 }
 function isUndefined(object) {
   return typeof object === "undefined";
 }
 extend(Object, {
   extend:        extend,
   inspect:       inspect,
   toJSON:        NATIVE_JSON_STRINGIFY_SUPPORT ? stringify : toJSON,
   toQueryString: toQueryString,
   toHTML:        toHTML,
   keys:          Object.keys || keys,
   values:        values,
   clone:         clone,
   isElement:     isElement,
   isArray:       isArray,
   isHash:        isHash,
   isFunction:    isFunction,
   isString:      isString,
   isNumber:      isNumber,
   isDate:        isDate,
   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;
   if (!Object.isFunction(this))
     throw new TypeError("The object is not callable.");
   var nop = function() {};
   var __method = this, args = slice.call(arguments, 1);
   var bound = function() {
     var a = merge(args, arguments);
     var c = this instanceof bound ? this : context;
     return __method.apply(c, a);
   };
   nop.prototype   = this.prototype;
   bound.prototype = new nop();
   return bound;
 }
 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);
   };
 }
 var extensions = {
   argumentNames:       argumentNames,
   bindAsEventListener: bindAsEventListener,
   curry:               curry,
   delay:               delay,
   defer:               defer,
   wrap:                wrap,
   methodize:           methodize
 };
 if (!Function.prototype.bind)
   extensions.bind = bind;
 return extensions;

})());


(function(proto) {


 function toISOString() {
   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';
 }


 function toJSON() {
   return this.toISOString();
 }
 if (!proto.toISOString) proto.toISOString = toISOString;
 if (!proto.toJSON) proto.toJSON = toJSON;

})(Date.prototype);


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() {

 var NATIVE_JSON_PARSE_SUPPORT = window.JSON &&
   typeof JSON.parse === 'function' &&
   JSON.parse('{"test": true}').test;
 function prepareReplacement(replacement) {
   if (Object.isFunction(replacement)) return replacement;
   var template = new Template(replacement);
   return function(match) { return template.evaluate(match) };
 }
 function isNonEmptyRegExp(regexp) {
   return regexp.source && regexp.source !== '(?:)';
 }


 function gsub(pattern, replacement) {
   var result = , source = this, match;
   replacement = prepareReplacement(replacement);
   if (Object.isString(pattern))
     pattern = RegExp.escape(pattern);
   if (!(pattern.length || isNonEmptyRegExp(pattern))) {
     replacement = replacement();
     return replacement + source.split().join(replacement) + replacement;
   }
   while (source.length > 0) {
     match = source.match(pattern)
     if (match && match[0].length > 0) {
       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'),
       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,'&').replace(/</g,'<').replace(/>/g,'>');
 }
 function unescapeHTML() {
   return this.stripTags().replace(/</g,'<').replace(/>/g,'>').replace(/&/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()),
           value = pair.length > 1 ? pair.join('=') : pair[0];
       if (value != undefined) {
         value = value.gsub('+', ' ');
         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() {
   return this.replace(/-+(.)?/g, function(match, chr) {
     return chr ? chr.toUpperCase() : ;
   });
 }
 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 unfilterJSON(filter) {
   return this.replace(filter || Prototype.JSONFilter, '$1');
 }
 function isJSON() {
   var str = this;
   if (str.blank()) return false;
   str = str.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@');
   str = str.replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']');
   str = str.replace(/(?:^|:|,)(?:\s*\[)+/g, );
   return (/^[\],:{}\s]*$/).test(str);
 }
 function evalJSON(sanitize) {
   var json = this.unfilterJSON(),
       cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g;
   if (cx.test(json)) {
     json = json.replace(cx, function (a) {
       return '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
     });
   }
   try {
     if (!sanitize || json.isJSON()) return eval('(' + json + ')');
   } catch (e) { }
   throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
 }
 function parseJSON() {
   var json = this.unfilterJSON();
   return JSON.parse(json);
 }
 function include(pattern) {
   return this.indexOf(pattern) > -1;
 }
 function startsWith(pattern, position) {
   position = Object.isNumber(position) ? position : 0;
   return this.lastIndexOf(pattern, position) === position;
 }
 function endsWith(pattern, position) {
   pattern = String(pattern);
   position = Object.isNumber(position) ? position : this.length;
   if (position < 0) position = 0;
   if (position > this.length) position = this.length;
   var d = position - pattern.length;
   return d >= 0 && this.indexOf(pattern, d) === d;
 }
 function empty() {
   return this == ;
 }
 function blank() {
   return /^\s*$/.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 || 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,
   unfilterJSON:   unfilterJSON,
   isJSON:         isJSON,
   evalJSON:       NATIVE_JSON_PARSE_SUPPORT ? parseJSON : evalJSON,
   include:        include,
   startsWith:     String.prototype.startsWith || startsWith,
   endsWith:       String.prototype.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],
         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) {
   try {
     this._each(iterator, context);
   } 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, this);
     if (!result) throw $break;
   }, this);
   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, this))
       throw $break;
   }, this);
   return result;
 }
 function collect(iterator, context) {
   iterator = iterator || Prototype.K;
   var results = [];
   this.each(function(value, index) {
     results.push(iterator.call(context, value, index, this));
   }, this);
   return results;
 }
 function detect(iterator, context) {
   var result;
   this.each(function(value, index) {
     if (iterator.call(context, value, index, this)) {
       result = value;
       throw $break;
     }
   }, this);
   return result;
 }
 function findAll(iterator, context) {
   var results = [];
   this.each(function(value, index) {
     if (iterator.call(context, value, index, this))
       results.push(value);
   }, this);
   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, this));
   }, this);
   return results;
 }
 function include(object) {
   if (Object.isFunction(this.indexOf) && 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, this);
   }, this);
   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, this);
     if (result == null || value >= result)
       result = value;
   }, this);
   return result;
 }
 function min(iterator, context) {
   iterator = iterator || Prototype.K;
   var result;
   this.each(function(value, index) {
     value = iterator.call(context, value, index, this);
     if (result == null || value < result)
       result = value;
   }, this);
   return result;
 }
 function partition(iterator, context) {
   iterator = iterator || Prototype.K;
   var trues = [], falses = [];
   this.each(function(value, index) {
     (iterator.call(context, value, index, this) ?
       trues : falses).push(value);
   }, this);
   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, this))
       results.push(value);
   }, this);
   return results;
 }
 function sortBy(iterator, context) {
   return this.map(function(value, index) {
     return {
       value: value,
       criteria: iterator.call(context, value, index, this)
     };
   }, this).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, context) {
   for (var i = 0, length = this.length >>> 0; i < length; i++) {
     if (i in this) iterator.call(context, this[i], i, this);
   }
 }
 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.toArray() : this)._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.indexOf(item) !== -1;
   });
 }


 function clone() {
   return slice.call(this, 0);
 }
 function size() {
   return this.length;
 }
 function inspect() {
   return '[' + this.map(Object.inspect).join(', ') + ']';
 }
 function indexOf(item, i) {
   if (this == null) throw new TypeError();
   var array = Object(this), length = array.length >>> 0;
   if (length === 0) return -1;
   i = Number(i);
   if (isNaN(i)) {
     i = 0;
   } else if (i !== 0 && isFinite(i)) {
     i = (i > 0 ? 1 : -1) * Math.floor(Math.abs(i));
   }
   if (i > length) return -1;
   var k = i >= 0 ? i : Math.max(length - Math.abs(i), 0);
   for (; k < length; k++)
     if (k in array && array[k] === item) return k;
   return -1;
 }


 function lastIndexOf(item, i) {
   if (this == null) throw new TypeError();
   var array = Object(this), length = array.length >>> 0;
   if (length === 0) return -1;
   if (!Object.isUndefined(i)) {
     i = Number(i);
     if (isNaN(i)) {
       i = 0;
     } else if (i !== 0 && isFinite(i)) {
       i = (i > 0 ? 1 : -1) * Math.floor(Math.abs(i));
     }
   } else {
     i = length;
   }
   var k = i >= 0 ? Math.min(i, length - 1) :
    length - Math.abs(i);
   for (; k >= 0; k--)
     if (k in array && array[k] === item) return k;
   return -1;
 }
 function concat(_) {
   var array = [], items = slice.call(arguments, 0), item, n = 0;
   items.unshift(this);
   for (var i = 0, length = items.length; i < length; i++) {
     item = items[i];
     if (Object.isArray(item) && !('callee' in item)) {
       for (var j = 0, arrayLength = item.length; j < arrayLength; j++) {
         if (j in item) array[n] = item[j];
         n++;
       }
     } else {
       array[n++] = item;
     }
   }
   array.length = n;
   return array;
 }


 function wrapNative(method) {
   return function() {
     if (arguments.length === 0) {
       return method.call(this, Prototype.K);
     } else if (arguments[0] === undefined) {
       var args = slice.call(arguments, 1);
       args.unshift(Prototype.K);
       return method.apply(this, args);
     } else {
       return method.apply(this, arguments);
     }
   };
 }


 function map(iterator) {
   if (this == null) throw new TypeError();
   iterator = iterator || Prototype.K;
   var object = Object(this);
   var results = [], context = arguments[1], n = 0;
   for (var i = 0, length = object.length >>> 0; i < length; i++) {
     if (i in object) {
       results[n] = iterator.call(context, object[i], i, object);
     }
     n++;
   }
   results.length = n;
   return results;
 }
 if (arrayProto.map) {
   map = wrapNative(Array.prototype.map);
 }
 function filter(iterator) {
   if (this == null || !Object.isFunction(iterator))
     throw new TypeError();
   var object = Object(this);
   var results = [], context = arguments[1], value;
   for (var i = 0, length = object.length >>> 0; i < length; i++) {
     if (i in object) {
       value = object[i];
       if (iterator.call(context, value, i, object)) {
         results.push(value);
       }
     }
   }
   return results;
 }
 if (arrayProto.filter) {
   filter = Array.prototype.filter;
 }
 function some(iterator) {
   if (this == null) throw new TypeError();
   iterator = iterator || Prototype.K;
   var context = arguments[1];
   var object = Object(this);
   for (var i = 0, length = object.length >>> 0; i < length; i++) {
     if (i in object && iterator.call(context, object[i], i, object)) {
       return true;
     }
   }
   return false;
 }
 if (arrayProto.some) {
   var some = wrapNative(Array.prototype.some);
 }


 function every(iterator) {
   if (this == null) throw new TypeError();
   iterator = iterator || Prototype.K;
   var context = arguments[1];
   var object = Object(this);
   for (var i = 0, length = object.length >>> 0; i < length; i++) {
     if (i in object && !iterator.call(context, object[i], i, object)) {
       return false;
     }
   }
   return true;
 }
 if (arrayProto.every) {
   var every = wrapNative(Array.prototype.every);
 }
 var _reduce = arrayProto.reduce;
 function inject(memo, iterator) {
   iterator = iterator || Prototype.K;
   var context = arguments[2];
   return _reduce.call(this, iterator.bind(context), memo);
 }
 if (!arrayProto.reduce) {
   var inject = Enumerable.inject;
 }
 Object.extend(arrayProto, Enumerable);
 if (!arrayProto._reverse)
   arrayProto._reverse = arrayProto.reverse;
 Object.extend(arrayProto, {
   _each:     _each,
   map:       map,
   collect:   map,
   select:    filter,
   filter:    filter,
   findAll:   filter,
   some:      some,
   any:       some,
   every:     every,
   all:       every,
   inject:    inject,
   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
 });
 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, context) {
   var i = 0;
   for (var key in this._object) {
     var value = this._object[key], pair = [key, value];
     pair.key = key;
     pair.value = value;
     iterator.call(context, pair, i);
     i++;
   }
 }
 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;
   value = String.interpret(value);
   value = value.gsub(/(\r)?\n/, '\r\n');
   value = encodeURIComponent(value);
   value = value.gsub(/%20/, '+');
   return key + '=' + 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)) {
         var queryValues = [];
         for (var i = 0, len = values.length, value; i < len; i++) {
           value = values[i];
           queryValues.push(toQueryPair(key, value));
         }
         return results.concat(queryValues);
       }
     } 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 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:                 toObject,
   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 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,
   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, context) {
   var value = this.start, i;
   for (i = 0; this.include(value); i++) {
     iterator.call(context, value, i);
     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 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;
 }

};

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, context) {
   this.responders._each(iterator, context);
 },
 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.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.isString(this.options.parameters) ?
         this.options.parameters :
         Object.toQueryString(this.options.parameters);
   if (!['get', 'post'].include(this.method)) {
     params += (params ? '&' : ) + "_method=" + this.method;
     this.method = 'post';
   }
   if (params && this.method === 'get') {
     this.url += (this.url.include('?') ? '&' : '?') + params;
   }
   this.parameters = params.toQueryParams();
   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
       $H(extras).each(function(pair) { headers[pair.key] = pair.value });
   }
   for (var name in headers)
     if (headers[name] != null)
       this.transport.setRequestHeader(name, headers[name]);
 },
 success: function() {
   var status = this.getStatus();
   return !status || (status >= 200 && status < 300) || status == 304;
 },
 getStatus: function() {
   try {
     if (this.transport.status === 1223) return 204;
     return this.transport.status || 0;
   } catch (e) { return 0 }
 },
 respondToReadyState: function(readyState) {
   var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this);
   if (state == 'Complete') {
     try {
       this._complete = true;
       (this.options['on' + response.status]
        || this.options['on' + (this.success() ? 'Success' : 'Failure')]
        || Prototype.emptyFunction)(response, response.headerJSON);
     } catch (e) {
       this.dispatchException(e);
     }
     var contentType = response.getHeader('Content-type');
     if (this.options.evalJS == 'force'
         || (this.options.evalJS && this.isSameOrigin() && contentType
         && contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/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;
   try {
     json = decodeURIComponent(escape(json));
   } catch(e) {
   }
   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(GLOBAL) {

 var UNDEFINED;
 var SLICE = Array.prototype.slice;
 var DIV = document.createElement('div');


 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);
 }
 GLOBAL.$ = $;


 if (!GLOBAL.Node) GLOBAL.Node = {};
 if (!GLOBAL.Node.ELEMENT_NODE) {
   Object.extend(GLOBAL.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
   });
 }
 var ELEMENT_CACHE = {};
 function shouldUseCreationCache(tagName, attributes) {
   if (tagName === 'select') return false;
   if ('type' in attributes) return false;
   return true;
 }
 var HAS_EXTENDED_CREATE_ELEMENT_SYNTAX = (function(){
   try {
     var el = document.createElement('<input name="x">');
     return el.tagName.toLowerCase() === 'input' && el.name === 'x';
   }
   catch(err) {
     return false;
   }
 })();


 var oldElement = GLOBAL.Element;
 function Element(tagName, attributes) {
   attributes = attributes || {};
   tagName = tagName.toLowerCase();
   if (HAS_EXTENDED_CREATE_ELEMENT_SYNTAX && attributes.name) {
     tagName = '<' + tagName + ' name="' + attributes.name + '">';
     delete attributes.name;
     return Element.writeAttribute(document.createElement(tagName), attributes);
   }
   if (!ELEMENT_CACHE[tagName])
     ELEMENT_CACHE[tagName] = Element.extend(document.createElement(tagName));
   var node = shouldUseCreationCache(tagName, attributes) ?
    ELEMENT_CACHE[tagName].cloneNode(false) : document.createElement(tagName);
   return Element.writeAttribute(node, attributes);
 }
 GLOBAL.Element = Element;
 Object.extend(GLOBAL.Element, oldElement || {});
 if (oldElement) GLOBAL.Element.prototype = oldElement.prototype;
 Element.Methods = { ByTag: {}, Simulated: {} };
 var methods = {};
 var INSPECT_ATTRIBUTES = { id: 'id', className: 'class' };
 function inspect(element) {
   element = $(element);
   var result = '<' + element.tagName.toLowerCase();
   var attribute, value;
   for (var property in INSPECT_ATTRIBUTES) {
     attribute = INSPECT_ATTRIBUTES[property];
     value = (element[property] || ).toString();
     if (value) result += ' ' + attribute + '=' + value.inspect(true);
   }
   return result + '>';
 }
 methods.inspect = inspect;


 function visible(element) {
   return $(element).style.display !== 'none';
 }
 function toggle(element, bool) {
   element = $(element);
   if (Object.isUndefined(bool))
     bool = !Element.visible(element);
   Element[bool ? 'show' : 'hide'](element);
   return element;
 }
 function hide(element) {
   element = $(element);
   element.style.display = 'none';
   return element;
 }
 function show(element) {
   element = $(element);
   element.style.display = ;
   return element;
 }


 Object.extend(methods, {
   visible: visible,
   toggle:  toggle,
   hide:    hide,
   show:    show
 });


 function remove(element) {
   element = $(element);
   element.parentNode.removeChild(element);
   return element;
 }
 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 LINK_ELEMENT_INNERHTML_BUGGY = (function() {
   try {
     var el = document.createElement('div');
     el.innerHTML = "<link />";
     var isBuggy = (el.childNodes.length === 0);
     el = null;
     return isBuggy;
   } catch(e) {
     return true;
   }
 })();
 var ANY_INNERHTML_BUGGY = SELECT_ELEMENT_INNERHTML_BUGGY ||
  TABLE_ELEMENT_INNERHTML_BUGGY || LINK_ELEMENT_INNERHTML_BUGGY;
 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);
   var descendants = element.getElementsByTagName('*'),
    i = descendants.length;
   while (i--) purgeElement(descendants[i]);
   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 (ANY_INNERHTML_BUGGY) {
     if (tagName in INSERTION_TRANSLATIONS.tags) {
       while (element.firstChild)
         element.removeChild(element.firstChild);
       var nodes = getContentFromAnonymousElement(tagName, content.stripScripts());
       for (var i = 0, node; node = nodes[i]; i++)
         element.appendChild(node);
     } else if (LINK_ELEMENT_INNERHTML_BUGGY && Object.isString(content) && content.indexOf('<link') > -1) {
       while (element.firstChild)
         element.removeChild(element.firstChild);
       var nodes = getContentFromAnonymousElement(tagName,
        content.stripScripts(), true);
       for (var i = 0, node; node = nodes[i]; i++)
         element.appendChild(node);
     } else {
       element.innerHTML = content.stripScripts();
     }
   } else {
     element.innerHTML = content.stripScripts();
   }
   content.evalScripts.bind(content).defer();
   return element;
 }
 function replace(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;
 }
 var INSERTION_TRANSLATIONS = {
   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: ['', '
', 1], TBODY: ['<tbody>', '</tbody>
', 2], TR: ['<tbody>', '</tbody>
', 3], TD: ['<tbody></tbody>
', '
', 4],
     SELECT: ['<select>',               '</select>',                  1]
   }
 };
 var tags = INSERTION_TRANSLATIONS.tags;
 Object.extend(tags, {
   THEAD: tags.TBODY,
   TFOOT: tags.TBODY,
   TH:    tags.TD
 });
 function replace_IE(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 (tagName in INSERTION_TRANSLATIONS.tags) {
     var nextSibling = Element.next(element);
     var fragments = getContentFromAnonymousElement(
      tagName, content.stripScripts());
     parent.removeChild(element);
     var iterator;
     if (nextSibling)
       iterator = function(node) { parent.insertBefore(node, nextSibling) };
     else
       iterator = function(node) { parent.appendChild(node); }
     fragments.each(iterator);
   } else {
     element.outerHTML = content.stripScripts();
   }
   content.evalScripts.bind(content).defer();
   return element;
 }
 if ('outerHTML' in document.documentElement)
   replace = replace_IE;
 function isContent(content) {
   if (Object.isUndefined(content) || content === null) return false;
   if (Object.isString(content) || Object.isNumber(content)) return true;
   if (Object.isElement(content)) return true;
   if (content.toElement || content.toHTML) return true;
   return false;
 }
 function insertContentAt(element, content, position) {
   position   = position.toLowerCase();
   var method = INSERTION_TRANSLATIONS[position];
   if (content && content.toElement) content = content.toElement();
   if (Object.isElement(content)) {
     method(element, content);
     return element;
   }
   content = Object.toHTML(content);
   var tagName = ((position === 'before' || position === 'after') ?
    element.parentNode : element).tagName.toUpperCase();
   var childNodes = getContentFromAnonymousElement(tagName, content.stripScripts());
   if (position === 'top' || position === 'after') childNodes.reverse();
   for (var i = 0, node; node = childNodes[i]; i++)
     method(element, node);
   content.evalScripts.bind(content).defer();
 }
 function insert(element, insertions) {
   element = $(element);
   if (isContent(insertions))
     insertions = { bottom: insertions };
   for (var position in insertions)
     insertContentAt(element, insertions[position], position);
   return element;
 }
 function wrap(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;
 }
 function cleanWhitespace(element) {
   element = $(element);
   var node = element.firstChild;
   while (node) {
     var nextNode = node.nextSibling;
     if (node.nodeType === Node.TEXT_NODE && !/\S/.test(node.nodeValue))
       element.removeChild(node);
     node = nextNode;
   }
   return element;
 }
 function empty(element) {
   return $(element).innerHTML.blank();
 }
 function getContentFromAnonymousElement(tagName, html, force) {
   var t = INSERTION_TRANSLATIONS.tags[tagName], div = DIV;
   var workaround = !!t;
   if (!workaround && force) {
     workaround = true;
     t = [, , 0];
   }
   if (workaround) {
     div.innerHTML = ' ' + t[0] + html + t[1];
     div.removeChild(div.firstChild);
     for (var i = t[2]; i--; )
       div = div.firstChild;
   } else {
     div.innerHTML = html;
   }
   return $A(div.childNodes);
 }
 function clone(element, deep) {
   if (!(element = $(element))) return;
   var clone = element.cloneNode(deep);
   if (!HAS_UNIQUE_ID_PROPERTY) {
     clone._prototypeUID = UNDEFINED;
     if (deep) {
       var descendants = Element.select(clone, '*'),
        i = descendants.length;
       while (i--)
         descendants[i]._prototypeUID = UNDEFINED;
     }
   }
   return Element.extend(clone);
 }
 function purgeElement(element) {
   var uid = getUniqueElementID(element);
   if (uid) {
     Element.stopObserving(element);
     if (!HAS_UNIQUE_ID_PROPERTY)
       element._prototypeUID = UNDEFINED;
     delete Element.Storage[uid];
   }
 }
 function purgeCollection(elements) {
   var i = elements.length;
   while (i--)
     purgeElement(elements[i]);
 }
 function purgeCollection_IE(elements) {
   var i = elements.length, element, uid;
   while (i--) {
     element = elements[i];
     uid = getUniqueElementID(element);
     delete Element.Storage[uid];
     delete Event.cache[uid];
   }
 }
 if (HAS_UNIQUE_ID_PROPERTY) {
   purgeCollection = purgeCollection_IE;
 }


 function purge(element) {
   if (!(element = $(element))) return;
   purgeElement(element);
   var descendants = element.getElementsByTagName('*'),
    i = descendants.length;
   while (i--) purgeElement(descendants[i]);
   return null;
 }
 Object.extend(methods, {
   remove:  remove,
   update:  update,
   replace: replace,
   insert:  insert,
   wrap:    wrap,
   cleanWhitespace: cleanWhitespace,
   empty:   empty,
   clone:   clone,
   purge:   purge
 });


 function recursivelyCollect(element, property, maximumLength) {
   element = $(element);
   maximumLength = maximumLength || -1;
   var elements = [];
   while (element = element[property]) {
     if (element.nodeType === Node.ELEMENT_NODE)
       elements.push(Element.extend(element));
     if (elements.length === maximumLength) break;
   }
   return elements;
 }


 function ancestors(element) {
   return recursivelyCollect(element, 'parentNode');
 }
 function descendants(element) {
   return Element.select(element, '*');
 }
 function firstDescendant(element) {
   element = $(element).firstChild;
   while (element && element.nodeType !== Node.ELEMENT_NODE)
     element = element.nextSibling;
   return $(element);
 }
 function immediateDescendants(element) {
   var results = [], child = $(element).firstChild;
   while (child) {
     if (child.nodeType === Node.ELEMENT_NODE)
       results.push(Element.extend(child));
     child = child.nextSibling;
   }
   return results;
 }
 function previousSiblings(element) {
   return recursivelyCollect(element, 'previousSibling');
 }
 function nextSiblings(element) {
   return recursivelyCollect(element, 'nextSibling');
 }
 function siblings(element) {
   element = $(element);
   var previous = previousSiblings(element),
    next = nextSiblings(element);
   return previous.reverse().concat(next);
 }
 function match(element, selector) {
   element = $(element);
   if (Object.isString(selector))
     return Prototype.Selector.match(element, selector);
   return selector.match(element);
 }


 function _recursivelyFind(element, property, expression, index) {
   element = $(element), expression = expression || 0, index = index || 0;
   if (Object.isNumber(expression)) {
     index = expression, expression = null;
   }
   while (element = element[property]) {
     if (element.nodeType !== 1) continue;
     if (expression && !Prototype.Selector.match(element, expression))
       continue;
     if (--index >= 0) continue;
     return Element.extend(element);
   }
 }


 function up(element, expression, index) {
   element = $(element);
   if (arguments.length === 1) return $(element.parentNode);
   return _recursivelyFind(element, 'parentNode', expression, index);
 }
 function down(element, expression, index) {
   if (arguments.length === 1) return firstDescendant(element);
   element = $(element), expression = expression || 0, index = index || 0;
   if (Object.isNumber(expression))
     index = expression, expression = '*';
   var node = Prototype.Selector.select(expression, element)[index];
   return Element.extend(node);
 }
 function previous(element, expression, index) {
   return _recursivelyFind(element, 'previousSibling', expression, index);
 }
 function next(element, expression, index) {
   return _recursivelyFind(element, 'nextSibling', expression, index);
 }
 function select(element) {
   element = $(element);
   var expressions = SLICE.call(arguments, 1).join(', ');
   return Prototype.Selector.select(expressions, element);
 }
 function adjacent(element) {
   element = $(element);
   var expressions = SLICE.call(arguments, 1).join(', ');
   var siblings = Element.siblings(element), results = [];
   for (var i = 0, sibling; sibling = siblings[i]; i++) {
     if (Prototype.Selector.match(sibling, expressions))
       results.push(sibling);
   }
   return results;
 }
 function descendantOf_DOM(element, ancestor) {
   element = $(element), ancestor = $(ancestor);
   while (element = element.parentNode)
     if (element === ancestor) return true;
   return false;
 }
 function descendantOf_contains(element, ancestor) {
   element = $(element), ancestor = $(ancestor);
   if (!ancestor.contains) return descendantOf_DOM(element, ancestor);
   return ancestor.contains(element) && ancestor !== element;
 }
 function descendantOf_compareDocumentPosition(element, ancestor) {
   element = $(element), ancestor = $(ancestor);
   return (element.compareDocumentPosition(ancestor) & 8) === 8;
 }
 var descendantOf;
 if (DIV.compareDocumentPosition) {
   descendantOf = descendantOf_compareDocumentPosition;
 } else if (DIV.contains) {
   descendantOf = descendantOf_contains;
 } else {
   descendantOf = descendantOf_DOM;
 }


 Object.extend(methods, {
   recursivelyCollect:   recursivelyCollect,
   ancestors:            ancestors,
   descendants:          descendants,
   firstDescendant:      firstDescendant,
   immediateDescendants: immediateDescendants,
   previousSiblings:     previousSiblings,
   nextSiblings:         nextSiblings,
   siblings:             siblings,
   match:                match,
   up:                   up,
   down:                 down,
   previous:             previous,
   next:                 next,
   select:               select,
   adjacent:             adjacent,
   descendantOf:         descendantOf,
   getElementsBySelector: select,
   childElements:         immediateDescendants
 });


 var idCounter = 1;
 function identify(element) {
   element = $(element);
   var id = Element.readAttribute(element, 'id');
   if (id) return id;
   do { id = 'anonymous_element_' + idCounter++ } while ($(id));
   Element.writeAttribute(element, 'id', id);
   return id;
 }


 function readAttribute(element, name) {
   return $(element).getAttribute(name);
 }
 function readAttribute_IE(element, name) {
   element = $(element);
   var table = ATTRIBUTE_TRANSLATIONS.read;
   if (table.values[name])
     return table.values[name](element, name);
   if (table.names[name]) name = table.names[name];
   if (name.include(':')) {
     if (!element.attributes || !element.attributes[name]) return null;
     return element.attributes[name].value;
   }
   return element.getAttribute(name);
 }
 function readAttribute_Opera(element, name) {
   if (name === 'title') return element.title;
   return element.getAttribute(name);
 }
 var PROBLEMATIC_ATTRIBUTE_READING = (function() {
   DIV.setAttribute('onclick', []);
   var value = DIV.getAttribute('onclick');
   var isFunction = Object.isArray(value);
   DIV.removeAttribute('onclick');
   return isFunction;
 })();
 if (PROBLEMATIC_ATTRIBUTE_READING) {
   readAttribute = readAttribute_IE;
 } else if (Prototype.Browser.Opera) {
   readAttribute = readAttribute_Opera;
 }


 function writeAttribute(element, name, value) {
   element = $(element);
   var attributes = {}, table = ATTRIBUTE_TRANSLATIONS.write;
   if (typeof name === 'object') {
     attributes = name;
   } else {
     attributes[name] = Object.isUndefined(value) ? true : value;
   }
   for (var attr in attributes) {
     name = table.names[attr] || attr;
     value = attributes[attr];
     if (table.values[attr])
       name = table.values[attr](element, value) || name;
     if (value === false || value === null)
       element.removeAttribute(name);
     else if (value === true)
       element.setAttribute(name, name);
     else element.setAttribute(name, value);
   }
   return element;
 }
 var PROBLEMATIC_HAS_ATTRIBUTE_WITH_CHECKBOXES = (function () {
   if (!HAS_EXTENDED_CREATE_ELEMENT_SYNTAX) {
     return false;
   }
   var checkbox = document.createElement('<input type="checkbox">');
   checkbox.checked = true;
   var node = checkbox.getAttributeNode('checked');
   return !node || !node.specified;
 })();
 function hasAttribute(element, attribute) {
   attribute = ATTRIBUTE_TRANSLATIONS.has[attribute] || attribute;
   var node = $(element).getAttributeNode(attribute);
   return !!(node && node.specified);
 }
 function hasAttribute_IE(element, attribute) {
   if (attribute === 'checked') {
     return element.checked;
   }
   return hasAttribute(element, attribute);
 }
 GLOBAL.Element.Methods.Simulated.hasAttribute =
  PROBLEMATIC_HAS_ATTRIBUTE_WITH_CHECKBOXES ?
  hasAttribute_IE : hasAttribute;
 function classNames(element) {
   return new Element.ClassNames(element);
 }
 var regExpCache = {};
 function getRegExpForClassName(className) {
   if (regExpCache[className]) return regExpCache[className];
   var re = new RegExp("(^|\\s+)" + className + "(\\s+|$)");
   regExpCache[className] = re;
   return re;
 }
 function hasClassName(element, className) {
   if (!(element = $(element))) return;
   var elementClassName = element.className;
   if (elementClassName.length === 0) return false;
   if (elementClassName === className) return true;
   return getRegExpForClassName(className).test(elementClassName);
 }
 function addClassName(element, className) {
   if (!(element = $(element))) return;
   if (!hasClassName(element, className))
     element.className += (element.className ? ' ' : ) + className;
   return element;
 }
 function removeClassName(element, className) {
   if (!(element = $(element))) return;
   element.className = element.className.replace(
    getRegExpForClassName(className), ' ').strip();
   return element;
 }
 function toggleClassName(element, className, bool) {
   if (!(element = $(element))) return;
   if (Object.isUndefined(bool))
     bool = !hasClassName(element, className);
   var method = Element[bool ? 'addClassName' : 'removeClassName'];
   return method(element, className);
 }
 var ATTRIBUTE_TRANSLATIONS = {};
 var classProp = 'className', forProp = 'for';
 DIV.setAttribute(classProp, 'x');
 if (DIV.className !== 'x') {
   DIV.setAttribute('class', 'x');
   if (DIV.className === 'x')
     classProp = 'class';
 }
 var LABEL = document.createElement('label');
 LABEL.setAttribute(forProp, 'x');
 if (LABEL.htmlFor !== 'x') {
   LABEL.setAttribute('htmlFor', 'x');
   if (LABEL.htmlFor === 'x')
     forProp = 'htmlFor';
 }
 LABEL = null;
 function _getAttr(element, attribute) {
   return element.getAttribute(attribute);
 }
 function _getAttr2(element, attribute) {
   return element.getAttribute(attribute, 2);
 }
 function _getAttrNode(element, attribute) {
   var node = element.getAttributeNode(attribute);
   return node ? node.value : ;
 }
 function _getFlag(element, attribute) {
   return $(element).hasAttribute(attribute) ? attribute : null;
 }
 DIV.onclick = Prototype.emptyFunction;
 var onclickValue = DIV.getAttribute('onclick');
 var _getEv;
 if (String(onclickValue).indexOf('{') > -1) {
   _getEv = function(element, attribute) {
     var value = element.getAttribute(attribute);
     if (!value) return null;
     value = value.toString();
     value = value.split('{')[1];
     value = value.split('}')[0];
     return value.strip();
   };
 }
 else if (onclickValue === ) {
   _getEv = function(element, attribute) {
     var value = element.getAttribute(attribute);
     if (!value) return null;
     return value.strip();
   };
 }
 ATTRIBUTE_TRANSLATIONS.read = {
   names: {
     'class':     classProp,
     'className': classProp,
     'for':       forProp,
     'htmlFor':   forProp
   },
   values: {
     style: function(element) {
       return element.style.cssText.toLowerCase();
     },
     title: function(element) {
       return element.title;
     }
   }
 };
 ATTRIBUTE_TRANSLATIONS.write = {
   names: {
     className:   'class',
     htmlFor:     'for',
     cellpadding: 'cellPadding',
     cellspacing: 'cellSpacing'
   },
   values: {
     checked: function(element, value) {
       element.checked = !!value;
     },
     style: function(element, value) {
       element.style.cssText = value ? value : ;
     }
   }
 };
 ATTRIBUTE_TRANSLATIONS.has = { names: {} };
 Object.extend(ATTRIBUTE_TRANSLATIONS.write.names,
  ATTRIBUTE_TRANSLATIONS.read.names);
 var CAMEL_CASED_ATTRIBUTE_NAMES = $w('colSpan rowSpan vAlign dateTime ' +
  'accessKey tabIndex encType maxLength readOnly longDesc frameBorder');
 for (var i = 0, attr; attr = CAMEL_CASED_ATTRIBUTE_NAMES[i]; i++) {
   ATTRIBUTE_TRANSLATIONS.write.names[attr.toLowerCase()] = attr;
   ATTRIBUTE_TRANSLATIONS.has.names[attr.toLowerCase()]   = attr;
 }
 Object.extend(ATTRIBUTE_TRANSLATIONS.read.values, {
   href:        _getAttr2,
   src:         _getAttr2,
   type:        _getAttr,
   action:      _getAttrNode,
   disabled:    _getFlag,
   checked:     _getFlag,
   readonly:    _getFlag,
   multiple:    _getFlag,
   onload:      _getEv,
   onunload:    _getEv,
   onclick:     _getEv,
   ondblclick:  _getEv,
   onmousedown: _getEv,
   onmouseup:   _getEv,
   onmouseover: _getEv,
   onmousemove: _getEv,
   onmouseout:  _getEv,
   onfocus:     _getEv,
   onblur:      _getEv,
   onkeypress:  _getEv,
   onkeydown:   _getEv,
   onkeyup:     _getEv,
   onsubmit:    _getEv,
   onreset:     _getEv,
   onselect:    _getEv,
   onchange:    _getEv
 });


 Object.extend(methods, {
   identify:        identify,
   readAttribute:   readAttribute,
   writeAttribute:  writeAttribute,
   classNames:      classNames,
   hasClassName:    hasClassName,
   addClassName:    addClassName,
   removeClassName: removeClassName,
   toggleClassName: toggleClassName
 });


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


 function getStyle(element, style) {
   element = $(element);
   style = normalizeStyleName(style);
   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;
 }
 function getStyle_Opera(element, style) {
   switch (style) {
     case 'height': case 'width':
       if (!Element.visible(element)) return null;
       var dim = parseInt(getStyle(element, style), 10);
       if (dim !== element['offset' + style.capitalize()])
         return dim + 'px';
       return Element.measure(element, style);
     default: return getStyle(element, style);
   }
 }
 function getStyle_IE(element, style) {
   element = $(element);
   style = normalizeStyleName_IE(style);
   var value = element.style[style];
   if (!value && element.currentStyle) {
     value = element.currentStyle[style];
   }
   if (style === 'opacity' && !STANDARD_CSS_OPACITY_SUPPORTED)
     return getOpacity_IE(element);
   if (value === 'auto') {
     if ((style === 'width' || style === 'height') && Element.visible(element))
       return Element.measure(element, style) + 'px';
     return null;
   }
   return value;
 }
 function stripAlphaFromFilter_IE(filter) {
   return (filter || ).replace(/alpha\([^\)]*\)/gi, );
 }
 function hasLayout_IE(element) {
   if (!element.currentStyle || !element.currentStyle.hasLayout)
     element.style.zoom = 1;
   return element;
 }
 var STANDARD_CSS_OPACITY_SUPPORTED = (function() {
   DIV.style.cssText = "opacity:.55";
   return /^0.55/.test(DIV.style.opacity);
 })();
 function setOpacity(element, value) {
   element = $(element);
   if (value == 1 || value === ) value = ;
   else if (value < 0.00001) value = 0;
   element.style.opacity = value;
   return element;
 }
 function setOpacity_IE(element, value) {
   if (STANDARD_CSS_OPACITY_SUPPORTED)
     return setOpacity(element, value);
   element = hasLayout_IE($(element));
   var filter = Element.getStyle(element, 'filter'),
    style = element.style;
   if (value == 1 || value === ) {
     filter = stripAlphaFromFilter_IE(filter);
     if (filter) style.filter = filter;
     else style.removeAttribute('filter');
     return element;
   }
   if (value < 0.00001) value = 0;
   style.filter = stripAlphaFromFilter_IE(filter) +
    'alpha(opacity=' + (value * 100) + ')';
   return element;
 }


 function getOpacity(element) {
   return Element.getStyle(element, 'opacity');
 }
 function getOpacity_IE(element) {
   if (STANDARD_CSS_OPACITY_SUPPORTED)
     return getOpacity(element);
   var filter = Element.getStyle(element, 'filter');
   if (filter.length === 0) return 1.0;
   var match = (filter || ).match(/alpha\(opacity=(.*)\)/);
   if (match && match[1]) return parseFloat(match[1]) / 100;
   return 1.0;
 }


 Object.extend(methods, {
   setStyle:   setStyle,
   getStyle:   getStyle,
   setOpacity: setOpacity,
   getOpacity: getOpacity
 });
 if ('styleFloat' in DIV.style) {
   methods.getStyle = getStyle_IE;
   methods.setOpacity = setOpacity_IE;
   methods.getOpacity = getOpacity_IE;
 }
 var UID = 0;
 GLOBAL.Element.Storage = { UID: 1 };
 function getUniqueElementID(element) {
   if (element === window) return 0;
   if (typeof element._prototypeUID === 'undefined')
     element._prototypeUID = Element.Storage.UID++;
   return element._prototypeUID;
 }
 function getUniqueElementID_IE(element) {
   if (element === window) return 0;
   if (element == document) return 1;
   return element.uniqueID;
 }
 var HAS_UNIQUE_ID_PROPERTY = ('uniqueID' in DIV);
 if (HAS_UNIQUE_ID_PROPERTY)
   getUniqueElementID = getUniqueElementID_IE;
 function getStorage(element) {
   if (!(element = $(element))) return;
   var uid = getUniqueElementID(element);
   if (!Element.Storage[uid])
     Element.Storage[uid] = $H();
   return Element.Storage[uid];
 }
 function store(element, key, value) {
   if (!(element = $(element))) return;
   var storage = getStorage(element);
   if (arguments.length === 2) {
     storage.update(key);
   } else {
     storage.set(key, value);
   }
   return element;
 }
 function retrieve(element, key, defaultValue) {
   if (!(element = $(element))) return;
   var storage = getStorage(element), value = storage.get(key);
   if (Object.isUndefined(value)) {
     storage.set(key, defaultValue);
     value = defaultValue;
   }
   return value;
 }


 Object.extend(methods, {
   getStorage: getStorage,
   store:      store,
   retrieve:   retrieve
 });


 var Methods = {}, ByTag = Element.Methods.ByTag,
  F = Prototype.BrowserFeatures;
 if (!F.ElementExtensions && ('__proto__' in DIV)) {
   GLOBAL.HTMLElement = {};
   GLOBAL.HTMLElement.prototype = DIV['__proto__'];
   F.ElementExtensions = true;
 }
 function checkElementPrototypeDeficiency(tagName) {
   if (typeof window.Element === 'undefined') return false;
   if (!HAS_EXTENDED_CREATE_ELEMENT_SYNTAX) return false;
   var proto = window.Element.prototype;
   if (proto) {
     var id = '_' + (Math.random() + ).slice(2),
      el = document.createElement(tagName);
     proto[id] = 'x';
     var isBuggy = (el[id] !== 'x');
     delete proto[id];
     el = null;
     return isBuggy;
   }
   return false;
 }
 var HTMLOBJECTELEMENT_PROTOTYPE_BUGGY =
  checkElementPrototypeDeficiency('object');
 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 EXTENDED = {};
 function elementIsExtended(element) {
   var uid = getUniqueElementID(element);
   return (uid in EXTENDED);
 }
 function extend(element) {
   if (!element || elementIsExtended(element)) return element;
   if (element.nodeType !== Node.ELEMENT_NODE || element == window)
     return element;
   var methods = Object.clone(Methods),
    tagName = element.tagName.toUpperCase();
   if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);
   extendElementWith(element, methods);
   EXTENDED[getUniqueElementID(element)] = true;
   return element;
 }
 function extend_IE8(element) {
   if (!element || elementIsExtended(element)) return element;
   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;
 }
 if (F.SpecificElementExtensions) {
   extend = HTMLOBJECTELEMENT_PROTOTYPE_BUGGY ? extend_IE8 : Prototype.K;
 }
 function addMethodsToTagName(tagName, methods) {
   tagName = tagName.toUpperCase();
   if (!ByTag[tagName]) ByTag[tagName] = {};
   Object.extend(ByTag[tagName], methods);
 }
 function mergeMethods(destination, methods, onlyIfAbsent) {
   if (Object.isUndefined(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),
    proto = element['__proto__'] || element.constructor.prototype;
   element = null;
   return proto;
 }
 function addMethods(methods) {
   if (arguments.length === 0) addFormMethods();
   if (arguments.length === 2) {
     var tagName = methods;
     methods = arguments[1];
   }
   if (!tagName) {
     Object.extend(Element.Methods, methods || {});
   } else {
     if (Object.isArray(tagName)) {
       for (var i = 0, tag; tag = tagName[i]; i++)
         addMethodsToTagName(tag, methods);
     } else {
       addMethodsToTagName(tagName, methods);
     }
   }
   var ELEMENT_PROTOTYPE = window.HTMLElement ? HTMLElement.prototype :
    Element.prototype;
   if (F.ElementExtensions) {
     mergeMethods(ELEMENT_PROTOTYPE, Element.Methods);
     mergeMethods(ELEMENT_PROTOTYPE, Element.Methods.Simulated, true);
   }
   if (F.SpecificElementExtensions) {
     for (var tag in Element.Methods.ByTag) {
       var klass = findDOMClass(tag);
       if (Object.isUndefined(klass)) continue;
       mergeMethods(klass.prototype, ByTag[tag]);
     }
   }
   Object.extend(Element, Element.Methods);
   Object.extend(Element, Element.Methods.Simulated);
   delete Element.ByTag;
   delete Element.Simulated;
   Element.extend.refresh();
   ELEMENT_CACHE = {};
 }
 Object.extend(GLOBAL.Element, {
   extend:     extend,
   addMethods: addMethods
 });
 if (extend === Prototype.K) {
   GLOBAL.Element.extend.refresh = Prototype.emptyFunction;
 } else {
   GLOBAL.Element.extend.refresh = function() {
     if (Prototype.BrowserFeatures.ElementExtensions) return;
     Object.extend(Methods, Element.Methods);
     Object.extend(Methods, Element.Methods.Simulated);
     EXTENDED = {};
   };
 }
 function addFormMethods() {
   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),
     "BUTTON":   Object.clone(Form.Element.Methods)
   });
 }
 Element.addMethods(methods);
 function destroyCache_IE() {
   DIV = null;
   ELEMENT_CACHE = null;
 }
 if (window.attachEvent)
   window.attachEvent('onunload', destroyCache_IE);

})(this); (function() {

 function toDecimal(pctString) {
   var match = pctString.match(/^(\d+)%?$/i);
   if (!match) return null;
   return (Number(match[1]) / 100);
 }
 function getRawStyle(element, style) {
   element = $(element);
   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;
 }
 function getRawStyle_IE(element, style) {
   var value = element.style[style];
   if (!value && element.currentStyle) {
     value = element.currentStyle[style];
   }
   return value;
 }
 function getContentWidth(element, context) {
   var boxWidth = element.offsetWidth;
   var bl = getPixelValue(element, 'borderLeftWidth',  context) || 0;
   var br = getPixelValue(element, 'borderRightWidth', context) || 0;
   var pl = getPixelValue(element, 'paddingLeft',      context) || 0;
   var pr = getPixelValue(element, 'paddingRight',     context) || 0;
   return boxWidth - bl - br - pl - pr;
 }
 if ('currentStyle' in document.documentElement) {
   getRawStyle = getRawStyle_IE;
 }


 function getPixelValue(value, property, context) {
   var element = null;
   if (Object.isElement(value)) {
     element = value;
     value = getRawStyle(element, property);
   }
   if (value === null || Object.isUndefined(value)) {
     return null;
   }
   if ((/^(?:-)?\d+(\.\d+)?(px)?$/i).test(value)) {
     return window.parseFloat(value);
   }
   var isPercentage = value.include('%'), isViewport = (context === document.viewport);
   if (/\d/.test(value) && element && element.runtimeStyle && !(isPercentage && isViewport)) {
     var style = element.style.left, rStyle = element.runtimeStyle.left;
     element.runtimeStyle.left = element.currentStyle.left;
     element.style.left = value || 0;
     value = element.style.pixelLeft;
     element.style.left = style;
     element.runtimeStyle.left = rStyle;
     return value;
   }
   if (element && isPercentage) {
     context = context || element.parentNode;
     var decimal = toDecimal(value), whole = null;
     var isHorizontal = property.include('left') || property.include('right') ||
      property.include('width');
     var isVertical   = property.include('top') || property.include('bottom') ||
       property.include('height');
     if (context === document.viewport) {
       if (isHorizontal) {
         whole = document.viewport.getWidth();
       } else if (isVertical) {
         whole = document.viewport.getHeight();
       }
     } else {
       if (isHorizontal) {
         whole = $(context).measure('width');
       } else if (isVertical) {
         whole = $(context).measure('height');
       }
     }
     return (whole === null) ? 0 : whole * decimal;
   }
   return 0;
 }
 function toCSSPixels(number) {
   if (Object.isString(number) && number.endsWith('px'))
     return number;
   return number + 'px';
 }
 function isDisplayed(element) {
   while (element && element.parentNode) {
     var display = element.getStyle('display');
     if (display === 'none') {
       return false;
     }
     element = $(element.parentNode);
   }
   return true;
 }
 var hasLayout = Prototype.K;
 if ('currentStyle' in document.documentElement) {
   hasLayout = function(element) {
     if (!element.currentStyle.hasLayout) {
       element.style.zoom = 1;
     }
     return element;
   };
 }
 function cssNameFor(key) {
   if (key.include('border')) key = key + '-width';
   return key.camelize();
 }
 Element.Layout = Class.create(Hash, {
   initialize: function($super, element, preCompute) {
     $super();
     this.element = $(element);
     Element.Layout.PROPERTIES.each( function(property) {
       this._set(property, null);
     }, this);
     if (preCompute) {
       this._preComputing = true;
       this._begin();
       Element.Layout.PROPERTIES.each( this._compute, this );
       this._end();
       this._preComputing = false;
     }
   },
   _set: function(property, value) {
     return Hash.prototype.set.call(this, property, value);
   },
   set: function(property, value) {
     throw "Properties of Element.Layout are read-only.";
   },
   get: function($super, property) {
     var value = $super(property);
     return value === null ? this._compute(property) : value;
   },
   _begin: function() {
     if (this._isPrepared()) return;
     var element = this.element;
     if (isDisplayed(element)) {
       this._setPrepared(true);
       return;
     }


     var originalStyles = {
       position:   element.style.position   || ,
       width:      element.style.width      || ,
       visibility: element.style.visibility || ,
       display:    element.style.display    || 
     };
     element.store('prototype_original_styles', originalStyles);
     var position = getRawStyle(element, 'position'), width = element.offsetWidth;
     if (width === 0 || width === null) {
       element.style.display = 'block';
       width = element.offsetWidth;
     }
     var context = (position === 'fixed') ? document.viewport :
      element.parentNode;
     var tempStyles = {
       visibility: 'hidden',
       display:    'block'
     };
     if (position !== 'fixed') tempStyles.position = 'absolute';
     element.setStyle(tempStyles);
     var positionedWidth = element.offsetWidth, newWidth;
     if (width && (positionedWidth === width)) {
       newWidth = getContentWidth(element, context);
     } else if (position === 'absolute' || position === 'fixed') {
       newWidth = getContentWidth(element, context);
     } else {
       var parent = element.parentNode, pLayout = $(parent).getLayout();
       newWidth = pLayout.get('width') -
        this.get('margin-left') -
        this.get('border-left') -
        this.get('padding-left') -
        this.get('padding-right') -
        this.get('border-right') -
        this.get('margin-right');
     }
     element.setStyle({ width: newWidth + 'px' });
     this._setPrepared(true);
   },
   _end: function() {
     var element = this.element;
     var originalStyles = element.retrieve('prototype_original_styles');
     element.store('prototype_original_styles', null);
     element.setStyle(originalStyles);
     this._setPrepared(false);
   },
   _compute: function(property) {
     var COMPUTATIONS = Element.Layout.COMPUTATIONS;
     if (!(property in COMPUTATIONS)) {
       throw "Property not found.";
     }
     return this._set(property, COMPUTATIONS[property].call(this, this.element));
   },
   _isPrepared: function() {
     return this.element.retrieve('prototype_element_layout_prepared', false);
   },
   _setPrepared: function(bool) {
     return this.element.store('prototype_element_layout_prepared', bool);
   },
   toObject: function() {
     var args = $A(arguments);
     var keys = (args.length === 0) ? Element.Layout.PROPERTIES :
      args.join(' ').split(' ');
     var obj = {};
     keys.each( function(key) {
       if (!Element.Layout.PROPERTIES.include(key)) return;
       var value = this.get(key);
       if (value != null) obj[key] = value;
     }, this);
     return obj;
   },
   toHash: function() {
     var obj = this.toObject.apply(this, arguments);
     return new Hash(obj);
   },
   toCSS: function() {
     var args = $A(arguments);
     var keys = (args.length === 0) ? Element.Layout.PROPERTIES :
      args.join(' ').split(' ');
     var css = {};
     keys.each( function(key) {
       if (!Element.Layout.PROPERTIES.include(key)) return;
       if (Element.Layout.COMPOSITE_PROPERTIES.include(key)) return;
       var value = this.get(key);
       if (value != null) css[cssNameFor(key)] = value + 'px';
     }, this);
     return css;
   },
   inspect: function() {
     return "#<Element.Layout>";
   }
 });
 Object.extend(Element.Layout, {
   PROPERTIES: $w('height width top left right bottom border-left border-right border-top border-bottom padding-left padding-right padding-top padding-bottom margin-top margin-bottom margin-left margin-right padding-box-width padding-box-height border-box-width border-box-height margin-box-width margin-box-height'),
   COMPOSITE_PROPERTIES: $w('padding-box-width padding-box-height margin-box-width margin-box-height border-box-width border-box-height'),
   COMPUTATIONS: {
     'height': function(element) {
       if (!this._preComputing) this._begin();
       var bHeight = this.get('border-box-height');
       if (bHeight <= 0) {
         if (!this._preComputing) this._end();
         return 0;
       }
       var bTop = this.get('border-top'),
        bBottom = this.get('border-bottom');
       var pTop = this.get('padding-top'),
        pBottom = this.get('padding-bottom');
       if (!this._preComputing) this._end();
       return bHeight - bTop - bBottom - pTop - pBottom;
     },
     'width': function(element) {
       if (!this._preComputing) this._begin();
       var bWidth = this.get('border-box-width');
       if (bWidth <= 0) {
         if (!this._preComputing) this._end();
         return 0;
       }
       var bLeft = this.get('border-left'),
        bRight = this.get('border-right');
       var pLeft = this.get('padding-left'),
        pRight = this.get('padding-right');
       if (!this._preComputing) this._end();
       return bWidth - bLeft - bRight - pLeft - pRight;
     },
     'padding-box-height': function(element) {
       var height = this.get('height'),
        pTop = this.get('padding-top'),
        pBottom = this.get('padding-bottom');
       return height + pTop + pBottom;
     },
     'padding-box-width': function(element) {
       var width = this.get('width'),
        pLeft = this.get('padding-left'),
        pRight = this.get('padding-right');
       return width + pLeft + pRight;
     },
     'border-box-height': function(element) {
       if (!this._preComputing) this._begin();
       var height = element.offsetHeight;
       if (!this._preComputing) this._end();
       return height;
     },
     'border-box-width': function(element) {
       if (!this._preComputing) this._begin();
       var width = element.offsetWidth;
       if (!this._preComputing) this._end();
       return width;
     },
     'margin-box-height': function(element) {
       var bHeight = this.get('border-box-height'),
        mTop = this.get('margin-top'),
        mBottom = this.get('margin-bottom');
       if (bHeight <= 0) return 0;
       return bHeight + mTop + mBottom;
     },
     'margin-box-width': function(element) {
       var bWidth = this.get('border-box-width'),
        mLeft = this.get('margin-left'),
        mRight = this.get('margin-right');
       if (bWidth <= 0) return 0;
       return bWidth + mLeft + mRight;
     },
     'top': function(element) {
       var offset = element.positionedOffset();
       return offset.top;
     },
     'bottom': function(element) {
       var offset = element.positionedOffset(),
        parent = element.getOffsetParent(),
        pHeight = parent.measure('height');
       var mHeight = this.get('border-box-height');
       return pHeight - mHeight - offset.top;
     },
     'left': function(element) {
       var offset = element.positionedOffset();
       return offset.left;
     },
     'right': function(element) {
       var offset = element.positionedOffset(),
        parent = element.getOffsetParent(),
        pWidth = parent.measure('width');
       var mWidth = this.get('border-box-width');
       return pWidth - mWidth - offset.left;
     },
     'padding-top': function(element) {
       return getPixelValue(element, 'paddingTop');
     },
     'padding-bottom': function(element) {
       return getPixelValue(element, 'paddingBottom');
     },
     'padding-left': function(element) {
       return getPixelValue(element, 'paddingLeft');
     },
     'padding-right': function(element) {
       return getPixelValue(element, 'paddingRight');
     },
     'border-top': function(element) {
       return getPixelValue(element, 'borderTopWidth');
     },
     'border-bottom': function(element) {
       return getPixelValue(element, 'borderBottomWidth');
     },
     'border-left': function(element) {
       return getPixelValue(element, 'borderLeftWidth');
     },
     'border-right': function(element) {
       return getPixelValue(element, 'borderRightWidth');
     },
     'margin-top': function(element) {
       return getPixelValue(element, 'marginTop');
     },
     'margin-bottom': function(element) {
       return getPixelValue(element, 'marginBottom');
     },
     'margin-left': function(element) {
       return getPixelValue(element, 'marginLeft');
     },
     'margin-right': function(element) {
       return getPixelValue(element, 'marginRight');
     }
   }
 });
 if ('getBoundingClientRect' in document.documentElement) {
   Object.extend(Element.Layout.COMPUTATIONS, {
     'right': function(element) {
       var parent = hasLayout(element.getOffsetParent());
       var rect = element.getBoundingClientRect(),
        pRect = parent.getBoundingClientRect();
       return (pRect.right - rect.right).round();
     },
     'bottom': function(element) {
       var parent = hasLayout(element.getOffsetParent());
       var rect = element.getBoundingClientRect(),
        pRect = parent.getBoundingClientRect();
       return (pRect.bottom - rect.bottom).round();
     }
   });
 }
 Element.Offset = Class.create({
   initialize: function(left, top) {
     this.left = left.round();
     this.top  = top.round();
     this[0] = this.left;
     this[1] = this.top;
   },
   relativeTo: function(offset) {
     return new Element.Offset(
       this.left - offset.left,
       this.top  - offset.top
     );
   },
   inspect: function() {
     return "#<Element.Offset left: #{left} top: #{top}>".interpolate(this);
   },
   toString: function() {
     return "[#{left}, #{top}]".interpolate(this);
   },
   toArray: function() {
     return [this.left, this.top];
   }
 });
 function getLayout(element, preCompute) {
   return new Element.Layout(element, preCompute);
 }
 function measure(element, property) {
   return $(element).getLayout().get(property);
 }
 function getHeight(element) {
   return Element.getDimensions(element).height;
 }
 function getWidth(element) {
   return Element.getDimensions(element).width;
 }
 function getDimensions(element) {
   element = $(element);
   var display = Element.getStyle(element, 'display');
   if (display && display !== 'none') {
     return { width: element.offsetWidth, height: element.offsetHeight };
   }
   var style = element.style;
   var originalStyles = {
     visibility: style.visibility,
     position:   style.position,
     display:    style.display
   };
   var newStyles = {
     visibility: 'hidden',
     display:    'block'
   };
   if (originalStyles.position !== 'fixed')
     newStyles.position = 'absolute';
   Element.setStyle(element, newStyles);
   var dimensions = {
     width:  element.offsetWidth,
     height: element.offsetHeight
   };
   Element.setStyle(element, originalStyles);
   return dimensions;
 }
 function getOffsetParent(element) {
   element = $(element);
   if (isDocument(element) || isDetached(element) || isBody(element) || isHtml(element))
     return $(document.body);
   var isInline = (Element.getStyle(element, 'display') === 'inline');
   if (!isInline && element.offsetParent) return $(element.offsetParent);
   while ((element = element.parentNode) && element !== document.body) {
     if (Element.getStyle(element, 'position') !== 'static') {
       return isHtml(element) ? $(document.body) : $(element);
     }
   }
   return $(document.body);
 }


 function cumulativeOffset(element) {
   element = $(element);
   var valueT = 0, valueL = 0;
   if (element.parentNode) {
     do {
       valueT += element.offsetTop  || 0;
       valueL += element.offsetLeft || 0;
       element = element.offsetParent;
     } while (element);
   }
   return new Element.Offset(valueL, valueT);
 }
 function positionedOffset(element) {
   element = $(element);
   var layout = element.getLayout();
   var valueT = 0, valueL = 0;
   do {
     valueT += element.offsetTop  || 0;
     valueL += element.offsetLeft || 0;
     element = element.offsetParent;
     if (element) {
       if (isBody(element)) break;
       var p = Element.getStyle(element, 'position');
       if (p !== 'static') break;
     }
   } while (element);
   valueL -= layout.get('margin-top');
   valueT -= layout.get('margin-left');
   return new Element.Offset(valueL, valueT);
 }
 function cumulativeScrollOffset(element) {
   var valueT = 0, valueL = 0;
   do {
     if (element === document.body) {
       var bodyScrollNode = document.documentElement || document.body.parentNode || document.body;
       valueT += !Object.isUndefined(window.pageYOffset) ? window.pageYOffset : bodyScrollNode.scrollTop || 0;
       valueL += !Object.isUndefined(window.pageXOffset) ? window.pageXOffset : bodyScrollNode.scrollLeft || 0;
       break;
     } else {
       valueT += element.scrollTop  || 0;
       valueL += element.scrollLeft || 0;
       element = element.parentNode;
     }
   } while (element);
   return new Element.Offset(valueL, valueT);
 }
 function viewportOffset(forElement) {
   var valueT = 0, valueL = 0, docBody = document.body;
   forElement = $(forElement);
   var element = forElement;
   do {
     valueT += element.offsetTop  || 0;
     valueL += element.offsetLeft || 0;
     if (element.offsetParent == docBody &&
       Element.getStyle(element, 'position') == 'absolute') break;
   } while (element = element.offsetParent);
   element = forElement;
   do {
     if (element != docBody) {
       valueT -= element.scrollTop  || 0;
       valueL -= element.scrollLeft || 0;
     }
   } while (element = element.parentNode);
   return new Element.Offset(valueL, valueT);
 }
 function absolutize(element) {
   element = $(element);
   if (Element.getStyle(element, 'position') === 'absolute') {
     return element;
   }
   var offsetParent = getOffsetParent(element);
   var eOffset = element.viewportOffset(),
    pOffset = offsetParent.viewportOffset();
   var offset = eOffset.relativeTo(pOffset);
   var layout = element.getLayout();
   element.store('prototype_absolutize_original_styles', {
     position: element.getStyle('position'),
     left:     element.getStyle('left'),
     top:      element.getStyle('top'),
     width:    element.getStyle('width'),
     height:   element.getStyle('height')
   });
   element.setStyle({
     position: 'absolute',
     top:    offset.top + 'px',
     left:   offset.left + 'px',
     width:  layout.get('width') + 'px',
     height: layout.get('height') + 'px'
   });
   return element;
 }
 function relativize(element) {
   element = $(element);
   if (Element.getStyle(element, 'position') === 'relative') {
     return element;
   }
   var originalStyles =
    element.retrieve('prototype_absolutize_original_styles');
   if (originalStyles) element.setStyle(originalStyles);
   return element;
 }


 function scrollTo(element) {
   element = $(element);
   var pos = Element.cumulativeOffset(element);
   window.scrollTo(pos.left, pos.top);
   return element;
 }


 function makePositioned(element) {
   element = $(element);
   var position = Element.getStyle(element, 'position'), styles = {};
   if (position === 'static' || !position) {
     styles.position = 'relative';
     if (Prototype.Browser.Opera) {
       styles.top  = 0;
       styles.left = 0;
     }
     Element.setStyle(element, styles);
     Element.store(element, 'prototype_made_positioned', true);
   }
   return element;
 }
 function undoPositioned(element) {
   element = $(element);
   var storage = Element.getStorage(element),
    madePositioned = storage.get('prototype_made_positioned');
   if (madePositioned) {
     storage.unset('prototype_made_positioned');
     Element.setStyle(element, {
       position: ,
       top:      ,
       bottom:   ,
       left:     ,
       right:    
     });
   }
   return element;
 }
 function makeClipping(element) {
   element = $(element);
   var storage = Element.getStorage(element),
    madeClipping = storage.get('prototype_made_clipping');
   if (Object.isUndefined(madeClipping)) {
     var overflow = Element.getStyle(element, 'overflow');
     storage.set('prototype_made_clipping', overflow);
     if (overflow !== 'hidden')
       element.style.overflow = 'hidden';
   }
   return element;
 }
 function undoClipping(element) {
   element = $(element);
   var storage = Element.getStorage(element),
    overflow = storage.get('prototype_made_clipping');
   if (!Object.isUndefined(overflow)) {
     storage.unset('prototype_made_clipping');
     element.style.overflow = overflow || ;
   }
   return element;
 }
 function clonePosition(element, source, options) {
   options = Object.extend({
     setLeft:    true,
     setTop:     true,
     setWidth:   true,
     setHeight:  true,
     offsetTop:  0,
     offsetLeft: 0
   }, options || {});
   source  = $(source);
   element = $(element);
   var p, delta, layout, styles = {};
   if (options.setLeft || options.setTop) {
     p = Element.viewportOffset(source);
     delta = [0, 0];
     if (Element.getStyle(element, 'position') === 'absolute') {
       var parent = Element.getOffsetParent(element);
       if (parent !== document.body) delta = Element.viewportOffset(parent);
     }
   }
   if (options.setWidth || options.setHeight) {
     layout = Element.getLayout(source);
   }
   if (options.setLeft)
     styles.left = (p[0] - delta[0] + options.offsetLeft) + 'px';
   if (options.setTop)
     styles.top  = (p[1] - delta[1] + options.offsetTop)  + 'px';
   if (options.setWidth)
     styles.width  = layout.get('border-box-width')  + 'px';
   if (options.setHeight)
     styles.height = layout.get('border-box-height') + 'px';
   return Element.setStyle(element, styles);
 }


 if (Prototype.Browser.IE) {
   getOffsetParent = getOffsetParent.wrap(
     function(proceed, element) {
       element = $(element);
       if (isDocument(element) || isDetached(element) || isBody(element) || isHtml(element))
         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;
     }
   );
   positionedOffset = positionedOffset.wrap(function(proceed, element) {
     element = $(element);
     if (!element.parentNode) return new Element.Offset(0, 0);
     var position = element.getStyle('position');
     if (position !== 'static') return proceed(element);
     var offsetParent = element.getOffsetParent();
     if (offsetParent && offsetParent.getStyle('position') === 'fixed')
       hasLayout(offsetParent);
     element.setStyle({ position: 'relative' });
     var value = proceed(element);
     element.setStyle({ position: position });
     return value;
   });
 } else if (Prototype.Browser.Webkit) {
   cumulativeOffset = function(element) {
     element = $(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 new Element.Offset(valueL, valueT);
   };
 }


 Element.addMethods({
   getLayout:              getLayout,
   measure:                measure,
   getWidth:               getWidth,
   getHeight:              getHeight,
   getDimensions:          getDimensions,
   getOffsetParent:        getOffsetParent,
   cumulativeOffset:       cumulativeOffset,
   positionedOffset:       positionedOffset,
   cumulativeScrollOffset: cumulativeScrollOffset,
   viewportOffset:         viewportOffset,
   absolutize:             absolutize,
   relativize:             relativize,
   scrollTo:               scrollTo,
   makePositioned:         makePositioned,
   undoPositioned:         undoPositioned,
   makeClipping:           makeClipping,
   undoClipping:           undoClipping,
   clonePosition:          clonePosition
 });
 function isBody(element) {
   return element.nodeName.toUpperCase() === 'BODY';
 }
 function isHtml(element) {
   return element.nodeName.toUpperCase() === 'HTML';
 }
 function isDocument(element) {
   return element.nodeType === Node.DOCUMENT_NODE;
 }
 function isDetached(element) {
   return element !== document.body &&
    !Element.descendantOf(element, document.body);
 }
 if ('getBoundingClientRect' in document.documentElement) {
   Element.addMethods({
     viewportOffset: function(element) {
       element = $(element);
       if (isDetached(element)) return new Element.Offset(0, 0);
       var rect = element.getBoundingClientRect(),
        docEl = document.documentElement;
       return new Element.Offset(rect.left - docEl.clientLeft,
        rect.top - docEl.clientTop);
     }
   });
 }


})();

(function() {

 var IS_OLD_OPERA = Prototype.Browser.Opera &&
  (window.parseFloat(window.opera.version()) < 9.5);
 var ROOT = null;
 function getRootElement() {
   if (ROOT) return ROOT;
   ROOT = IS_OLD_OPERA ? document.body : document.documentElement;
   return ROOT;
 }
 function getDimensions() {
   return { width: this.getWidth(), height: this.getHeight() };
 }
 function getWidth() {
   return getRootElement().clientWidth;
 }
 function getHeight() {
   return getRootElement().clientHeight;
 }
 function getScrollOffsets() {
   var x = window.pageXOffset || document.documentElement.scrollLeft ||
    document.body.scrollLeft;
   var y = window.pageYOffset || document.documentElement.scrollTop ||
    document.body.scrollTop;
   return new Element.Offset(x, y);
 }
 document.viewport = {
   getDimensions:    getDimensions,
   getWidth:         getWidth,
   getHeight:        getHeight,
   getScrollOffsets: getScrollOffsets
 };

})(); window.$$ = function() {

 var expression = $A(arguments).join(', ');
 return Prototype.Selector.select(expression, document);

};

Prototype.Selector = (function() {

 function select() {
   throw new Error('Method "Prototype.Selector.select" must be defined.');
 }
 function match() {
   throw new Error('Method "Prototype.Selector.match" must be defined.');
 }
 function find(elements, expression, index) {
   index = index || 0;
   var match = Prototype.Selector.match, length = elements.length, matchIndex = 0, i;
   for (i = 0; i < length; i++) {
     if (match(elements[i], expression) && index == matchIndex++) {
       return Element.extend(elements[i]);
     }
   }
 }
 function extendElements(elements) {
   for (var i = 0, length = elements.length; i < length; i++) {
     Element.extend(elements[i]);
   }
   return elements;
 }


 var K = Prototype.K;
 return {
   select: select,
   match: match,
   find: find,
   extendElements: (Element.extend === K) ? K : extendElements,
   extendElement: Element.extend
 };

})(); Prototype._original_property = window.Sizzle; /*!

* Sizzle CSS Selector Engine v@VERSION
* http://sizzlejs.com/
*
* Copyright 2013 jQuery Foundation, Inc. and other contributors
* Released under the MIT license
* http://jquery.org/license
*
* Date: @DATE
*/

(function( window ) {

var i, support, Expr, getText, isXML, compile, select, outermostContext, sortInput, hasDuplicate,

setDocument, document, docElem, documentIsHTML, rbuggyQSA, rbuggyMatches, matches, contains,

expando = "sizzle" + -(new Date()), preferredDoc = window.document, dirruns = 0, done = 0, classCache = createCache(), tokenCache = createCache(), compilerCache = createCache(), sortOrder = function( a, b ) { if ( a === b ) { hasDuplicate = true; } return 0; },

strundefined = typeof undefined, MAX_NEGATIVE = 1 << 31,

hasOwn = ({}).hasOwnProperty, arr = [], pop = arr.pop, push_native = arr.push, push = arr.push, slice = arr.slice, indexOf = arr.indexOf || function( elem ) { var i = 0, len = this.length; for ( ; i < len; i++ ) { if ( this[i] === elem ) { return i; } } return -1; },

booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",


whitespace = "[\\x20\\t\\r\\n\\f]", characterEncoding = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",

identifier = characterEncoding.replace( "w", "w#" ),

attributes = "\\[" + whitespace + "*(" + characterEncoding + ")" + whitespace + "*(?:([*^$|!~]?=)" + whitespace + "*(?:(['\"])((?:\\\\.|[^\\\\])*?)\\3|(" + identifier + ")|)|)" + whitespace + "*\\]",

pseudos = ":(" + characterEncoding + ")(?:\\(((['\"])((?:\\\\.|[^\\\\])*?)\\3|((?:\\\\.|[^\\\\()[\\]]|" + attributes.replace( 3, 8 ) + ")*)|.*)\\)|)",

rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),

rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ), rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),

rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ),

rpseudo = new RegExp( pseudos ), ridentifier = new RegExp( "^" + identifier + "$" ),

matchExpr = { "ID": new RegExp( "^#(" + characterEncoding + ")" ), "CLASS": new RegExp( "^\\.(" + characterEncoding + ")" ), "TAG": new RegExp( "^(" + characterEncoding.replace( "w", "w*" ) + ")" ), "ATTR": new RegExp( "^" + attributes ), "PSEUDO": new RegExp( "^" + pseudos ), "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace + "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace + "*(\\d+)|))" + whitespace + "*\\)|)", "i" ), "bool": new RegExp( "^(?:" + booleans + ")$", "i" ), "needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" ) },

rinputs = /^(?:input|select|textarea|button)$/i, rheader = /^h\d$/i,

rnative = /^[^{]+\{\s*\[native \w/,

rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,

rsibling = /[+~]/, rescape = /'|\\/g,

runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ), funescape = function( _, escaped, escapedWhitespace ) { var high = "0x" + escaped - 0x10000; return high !== high || escapedWhitespace ? escaped : high < 0 ? String.fromCharCode( high + 0x10000 ) : String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 ); };

try { push.apply( (arr = slice.call( preferredDoc.childNodes )), preferredDoc.childNodes ); arr[ preferredDoc.childNodes.length ].nodeType; } catch ( e ) { push = { apply: arr.length ?

function( target, els ) { push_native.apply( target, slice.call(els) ); } :

function( target, els ) { var j = target.length, i = 0; while ( (target[j++] = els[i++]) ) {} target.length = j - 1; } }; }

function Sizzle( selector, context, results, seed ) { var match, elem, m, nodeType, i, groups, old, nid, newContext, newSelector;

if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) { setDocument( context ); }

context = context || document; results = results || [];

if ( !selector || typeof selector !== "string" ) { return results; }

if ( (nodeType = context.nodeType) !== 1 && nodeType !== 9 ) { return []; }

if ( documentIsHTML && !seed ) {

if ( (match = rquickExpr.exec( selector )) ) { if ( (m = match[1]) ) { if ( nodeType === 9 ) { elem = context.getElementById( m ); if ( elem && elem.parentNode ) { if ( elem.id === m ) { results.push( elem ); return results; } } else { return results; } } else { if ( context.ownerDocument && (elem = context.ownerDocument.getElementById( m )) && contains( context, elem ) && elem.id === m ) { results.push( elem ); return results; } }

} else if ( match[2] ) { push.apply( results, context.getElementsByTagName( selector ) ); return results;

} else if ( (m = match[3]) && support.getElementsByClassName && context.getElementsByClassName ) { push.apply( results, context.getElementsByClassName( m ) ); return results; } }

if ( support.qsa && (!rbuggyQSA || !rbuggyQSA.test( selector )) ) { nid = old = expando; newContext = context; newSelector = nodeType === 9 && selector;

if ( nodeType === 1 && context.nodeName.toLowerCase() !== "object" ) { groups = tokenize( selector );

if ( (old = context.getAttribute("id")) ) { nid = old.replace( rescape, "\\$&" ); } else { context.setAttribute( "id", nid ); } nid = "[id='" + nid + "'] ";

i = groups.length; while ( i-- ) { groups[i] = nid + toSelector( groups[i] ); } newContext = rsibling.test( selector ) && testContext( context.parentNode ) || context; newSelector = groups.join(","); }

if ( newSelector ) { try { push.apply( results, newContext.querySelectorAll( newSelector ) ); return results; } catch(qsaError) { } finally { if ( !old ) { context.removeAttribute("id"); } } } } }

return select( selector.replace( rtrim, "$1" ), context, results, seed ); }

/**

* Create key-value caches of limited size
* @returns {Function(string, Object)} Returns the Object data after storing it on itself with
*	property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
*	deleting the oldest entry
*/

function createCache() { var keys = [];

function cache( key, value ) { if ( keys.push( key + " " ) > Expr.cacheLength ) { delete cache[ keys.shift() ]; } return (cache[ key + " " ] = value); } return cache; }

/**

* Mark a function for special use by Sizzle
* @param {Function} fn The function to mark
*/

function markFunction( fn ) { fn[ expando ] = true; return fn; }

/**

* Support testing using an element
* @param {Function} fn Passed the created div and expects a boolean result
*/

function assert( fn ) { var div = document.createElement("div");

try { return !!fn( div ); } catch (e) { return false; } finally { if ( div.parentNode ) { div.parentNode.removeChild( div ); } div = null; } }

/**

* Adds the same handler for all of the specified attrs
* @param {String} attrs Pipe-separated list of attributes
* @param {Function} handler The method that will be applied
*/

function addHandle( attrs, handler ) { var arr = attrs.split("|"), i = attrs.length;

while ( i-- ) { Expr.attrHandle[ arr[i] ] = handler; } }

/**

* Checks document order of two siblings
* @param {Element} a
* @param {Element} b
* @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
*/

function siblingCheck( a, b ) { var cur = b && a, diff = cur && a.nodeType === 1 && b.nodeType === 1 && ( ~b.sourceIndex || MAX_NEGATIVE ) - ( ~a.sourceIndex || MAX_NEGATIVE );

if ( diff ) { return diff; }

if ( cur ) { while ( (cur = cur.nextSibling) ) { if ( cur === b ) { return -1; } } }

return a ? 1 : -1; }

/**

* Returns a function to use in pseudos for input types
* @param {String} type
*/

function createInputPseudo( type ) { return function( elem ) { var name = elem.nodeName.toLowerCase(); return name === "input" && elem.type === type; }; }

/**

* Returns a function to use in pseudos for buttons
* @param {String} type
*/

function createButtonPseudo( type ) { return function( elem ) { var name = elem.nodeName.toLowerCase(); return (name === "input" || name === "button") && elem.type === type; }; }

/**

* Returns a function to use in pseudos for positionals
* @param {Function} fn
*/

function createPositionalPseudo( fn ) { return markFunction(function( argument ) { argument = +argument; return markFunction(function( seed, matches ) { var j, matchIndexes = fn( [], seed.length, argument ), i = matchIndexes.length;

while ( i-- ) { if ( seed[ (j = matchIndexes[i]) ] ) { seed[j] = !(matches[j] = seed[j]); } } }); }); }

/**

* Checks a node for validity as a Sizzle context
* @param {Element|Object=} context
* @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
*/

function testContext( context ) { return context && typeof context.getElementsByTagName !== strundefined && context; }

support = Sizzle.support = {};

/**

* Detects XML nodes
* @param {Element|Object} elem An element or a document
* @returns {Boolean} True iff elem is a non-HTML XML node
*/

isXML = Sizzle.isXML = function( elem ) { var documentElement = elem && (elem.ownerDocument || elem).documentElement; return documentElement ? documentElement.nodeName !== "HTML" : false; };

/**

* Sets document-related variables once based on the current document
* @param {Element|Object} [doc] An element or document object to use to set the document
* @returns {Object} Returns the current document
*/

setDocument = Sizzle.setDocument = function( node ) { var hasCompare, doc = node ? node.ownerDocument || node : preferredDoc, parent = doc.defaultView;

if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) { return document; }

document = doc; docElem = doc.documentElement;

documentIsHTML = !isXML( doc );

if ( parent && parent !== parent.top ) { if ( parent.addEventListener ) { parent.addEventListener( "unload", function() { setDocument(); }, false ); } else if ( parent.attachEvent ) { parent.attachEvent( "onunload", function() { setDocument(); }); } }

/* Attributes ---------------------------------------------------------------------- */

support.attributes = assert(function( div ) { div.className = "i"; return !div.getAttribute("className"); });

/* getElement(s)By* ---------------------------------------------------------------------- */

support.getElementsByTagName = assert(function( div ) { div.appendChild( doc.createComment("") ); return !div.getElementsByTagName("*").length; });

support.getElementsByClassName = rnative.test( doc.getElementsByClassName ) && assert(function( div ) {

div.innerHTML = "
";

div.firstChild.className = "i"; return div.getElementsByClassName("i").length === 2; });

support.getById = assert(function( div ) { docElem.appendChild( div ).id = expando; return !doc.getElementsByName || !doc.getElementsByName( expando ).length; });

if ( support.getById ) { Expr.find["ID"] = function( id, context ) { if ( typeof context.getElementById !== strundefined && documentIsHTML ) { var m = context.getElementById( id ); return m && m.parentNode ? [m] : []; } }; Expr.filter["ID"] = function( id ) { var attrId = id.replace( runescape, funescape ); return function( elem ) { return elem.getAttribute("id") === attrId; }; }; } else { delete Expr.find["ID"];

Expr.filter["ID"] = function( id ) { var attrId = id.replace( runescape, funescape ); return function( elem ) { var node = typeof elem.getAttributeNode !== strundefined && elem.getAttributeNode("id"); return node && node.value === attrId; }; }; }

Expr.find["TAG"] = support.getElementsByTagName ? function( tag, context ) { if ( typeof context.getElementsByTagName !== strundefined ) { return context.getElementsByTagName( tag ); } } : function( tag, context ) { var elem, tmp = [], i = 0, results = context.getElementsByTagName( tag );

if ( tag === "*" ) { while ( (elem = results[i++]) ) { if ( elem.nodeType === 1 ) { tmp.push( elem ); } }

return tmp; } return results; };

Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) { if ( typeof context.getElementsByClassName !== strundefined && documentIsHTML ) { return context.getElementsByClassName( className ); } };

/* QSA/matchesSelector ---------------------------------------------------------------------- */


rbuggyMatches = [];

rbuggyQSA = [];

if ( (support.qsa = rnative.test( doc.querySelectorAll )) ) { assert(function( div ) { div.innerHTML = "<select t=><option selected=></option></select>";

if ( div.querySelectorAll("[t^=]").length ) { rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:|\"\")" ); }

if ( !div.querySelectorAll("[selected]").length ) { rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" ); }

if ( !div.querySelectorAll(":checked").length ) { rbuggyQSA.push(":checked"); } });

assert(function( div ) { var input = doc.createElement("input"); input.setAttribute( "type", "hidden" ); div.appendChild( input ).setAttribute( "name", "D" );

if ( div.querySelectorAll("[name=d]").length ) { rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" ); }

if ( !div.querySelectorAll(":enabled").length ) { rbuggyQSA.push( ":enabled", ":disabled" ); }

div.querySelectorAll("*,:x"); rbuggyQSA.push(",.*:"); }); }

if ( (support.matchesSelector = rnative.test( (matches = docElem.webkitMatchesSelector || docElem.mozMatchesSelector || docElem.oMatchesSelector || docElem.msMatchesSelector) )) ) {

assert(function( div ) { support.disconnectedMatch = matches.call( div, "div" );

matches.call( div, "[s!=]:x" ); rbuggyMatches.push( "!=", pseudos ); }); }

rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") ); rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );

/* Contains ---------------------------------------------------------------------- */ hasCompare = rnative.test( docElem.compareDocumentPosition );

contains = hasCompare || rnative.test( docElem.contains ) ? function( a, b ) { var adown = a.nodeType === 9 ? a.documentElement : a, bup = b && b.parentNode; return a === bup || !!( bup && bup.nodeType === 1 && ( adown.contains ? adown.contains( bup ) : a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16 )); } : function( a, b ) { if ( b ) { while ( (b = b.parentNode) ) { if ( b === a ) { return true; } } } return false; };

/* Sorting ---------------------------------------------------------------------- */

sortOrder = hasCompare ? function( a, b ) {

if ( a === b ) { hasDuplicate = true; return 0; }

var compare = !a.compareDocumentPosition - !b.compareDocumentPosition; if ( compare ) { return compare; }

compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ? a.compareDocumentPosition( b ) :

1;

if ( compare & 1 || (!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {

if ( a === doc || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) { return -1; } if ( b === doc || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) { return 1; }

return sortInput ? ( indexOf.call( sortInput, a ) - indexOf.call( sortInput, b ) ) : 0; }

return compare & 4 ? -1 : 1; } : function( a, b ) { if ( a === b ) { hasDuplicate = true; return 0; }

var cur, i = 0, aup = a.parentNode, bup = b.parentNode, ap = [ a ], bp = [ b ];

if ( !aup || !bup ) { return a === doc ? -1 : b === doc ? 1 : aup ? -1 : bup ? 1 : sortInput ? ( indexOf.call( sortInput, a ) - indexOf.call( sortInput, b ) ) : 0;

} else if ( aup === bup ) { return siblingCheck( a, b ); }

cur = a; while ( (cur = cur.parentNode) ) { ap.unshift( cur ); } cur = b; while ( (cur = cur.parentNode) ) { bp.unshift( cur ); }

while ( ap[i] === bp[i] ) { i++; }

return i ? siblingCheck( ap[i], bp[i] ) :

ap[i] === preferredDoc ? -1 : bp[i] === preferredDoc ? 1 : 0; };

return doc; };

Sizzle.matches = function( expr, elements ) { return Sizzle( expr, null, null, elements ); };

Sizzle.matchesSelector = function( elem, expr ) { if ( ( elem.ownerDocument || elem ) !== document ) { setDocument( elem ); }

expr = expr.replace( rattributeQuotes, "='$1']" );

if ( support.matchesSelector && documentIsHTML && ( !rbuggyMatches || !rbuggyMatches.test( expr ) ) && ( !rbuggyQSA || !rbuggyQSA.test( expr ) ) ) {

try { var ret = matches.call( elem, expr );

if ( ret || support.disconnectedMatch || elem.document && elem.document.nodeType !== 11 ) { return ret; } } catch(e) {} }

return Sizzle( expr, document, null, [elem] ).length > 0; };

Sizzle.contains = function( context, elem ) { if ( ( context.ownerDocument || context ) !== document ) { setDocument( context ); } return contains( context, elem ); };

Sizzle.attr = function( elem, name ) { if ( ( elem.ownerDocument || elem ) !== document ) { setDocument( elem ); }

var fn = Expr.attrHandle[ name.toLowerCase() ], val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ? fn( elem, name, !documentIsHTML ) : undefined;

return val !== undefined ? val : support.attributes || !documentIsHTML ? elem.getAttribute( name ) : (val = elem.getAttributeNode(name)) && val.specified ? val.value : null; };

Sizzle.error = function( msg ) { throw new Error( "Syntax error, unrecognized expression: " + msg ); };

/**

* Document sorting and removing duplicates
* @param {ArrayLike} results
*/

Sizzle.uniqueSort = function( results ) { var elem, duplicates = [], j = 0, i = 0;

hasDuplicate = !support.detectDuplicates; sortInput = !support.sortStable && results.slice( 0 ); results.sort( sortOrder );

if ( hasDuplicate ) { while ( (elem = results[i++]) ) { if ( elem === results[ i ] ) { j = duplicates.push( i ); } } while ( j-- ) { results.splice( duplicates[ j ], 1 ); } }

sortInput = null;

return results; };

/**

* Utility function for retrieving the text value of an array of DOM nodes
* @param {Array|Element} elem
*/

getText = Sizzle.getText = function( elem ) { var node, ret = "", i = 0, nodeType = elem.nodeType;

if ( !nodeType ) { while ( (node = elem[i++]) ) { ret += getText( node ); } } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) { if ( typeof elem.textContent === "string" ) { return elem.textContent; } else { for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) { ret += getText( elem ); } } } else if ( nodeType === 3 || nodeType === 4 ) { return elem.nodeValue; }

return ret; };

Expr = Sizzle.selectors = {

cacheLength: 50,

createPseudo: markFunction,

match: matchExpr,

attrHandle: {},

find: {},

relative: { ">": { dir: "parentNode", first: true }, " ": { dir: "parentNode" }, "+": { dir: "previousSibling", first: true }, "~": { dir: "previousSibling" } },

preFilter: { "ATTR": function( match ) { match[1] = match[1].replace( runescape, funescape );

match[3] = ( match[4] || match[5] || "" ).replace( runescape, funescape );

if ( match[2] === "~=" ) { match[3] = " " + match[3] + " "; }

return match.slice( 0, 4 ); },

"CHILD": function( match ) { /* matches from matchExpr["CHILD"] 1 type (only|nth|...) 2 what (child|of-type) 3 argument (even|odd|\d*|\d*n([+-]\d+)?|...) 4 xn-component of xn+y argument ([+-]?\d*n|) 5 sign of xn-component 6 x of xn-component 7 sign of y-component 8 y of y-component */ match[1] = match[1].toLowerCase();

if ( match[1].slice( 0, 3 ) === "nth" ) { if ( !match[3] ) { Sizzle.error( match[0] ); }

match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) ); match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );

} else if ( match[3] ) { Sizzle.error( match[0] ); }

return match; },

"PSEUDO": function( match ) { var excess, unquoted = !match[5] && match[2];

if ( matchExpr["CHILD"].test( match[0] ) ) { return null; }

if ( match[3] && match[4] !== undefined ) { match[2] = match[4];

} else if ( unquoted && rpseudo.test( unquoted ) && (excess = tokenize( unquoted, true )) && (excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {

match[0] = match[0].slice( 0, excess ); match[2] = unquoted.slice( 0, excess ); }

return match.slice( 0, 3 ); } },

filter: {

"TAG": function( nodeNameSelector ) { var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase(); return nodeNameSelector === "*" ? function() { return true; } : function( elem ) { return elem.nodeName && elem.nodeName.toLowerCase() === nodeName; }; },

"CLASS": function( className ) { var pattern = classCache[ className + " " ];

return pattern || (pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) && classCache( className, function( elem ) { return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== strundefined && elem.getAttribute("class") || "" ); }); },

"ATTR": function( name, operator, check ) { return function( elem ) { var result = Sizzle.attr( elem, name );

if ( result == null ) { return operator === "!="; } if ( !operator ) { return true; }

result += "";

return operator === "=" ? result === check : operator === "!=" ? result !== check : operator === "^=" ? check && result.indexOf( check ) === 0 : operator === "*=" ? check && result.indexOf( check ) > -1 : operator === "$=" ? check && result.slice( -check.length ) === check : operator === "~=" ? ( " " + result + " " ).indexOf( check ) > -1 : operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" : false; }; },

"CHILD": function( type, what, argument, first, last ) { var simple = type.slice( 0, 3 ) !== "nth", forward = type.slice( -4 ) !== "last", ofType = what === "of-type";

return first === 1 && last === 0 ?

function( elem ) { return !!elem.parentNode; } :

function( elem, context, xml ) { var cache, outerCache, node, diff, nodeIndex, start, dir = simple !== forward ? "nextSibling" : "previousSibling", parent = elem.parentNode, name = ofType && elem.nodeName.toLowerCase(), useCache = !xml && !ofType;

if ( parent ) {

if ( simple ) { while ( dir ) { node = elem; while ( (node = node[ dir ]) ) { if ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) { return false; } } start = dir = type === "only" && !start && "nextSibling"; } return true; }

start = [ forward ? parent.firstChild : parent.lastChild ];

if ( forward && useCache ) { outerCache = parent[ expando ] || (parent[ expando ] = {}); cache = outerCache[ type ] || []; nodeIndex = cache[0] === dirruns && cache[1]; diff = cache[0] === dirruns && cache[2]; node = nodeIndex && parent.childNodes[ nodeIndex ];

while ( (node = ++nodeIndex && node && node[ dir ] ||

(diff = nodeIndex = 0) || start.pop()) ) {

if ( node.nodeType === 1 && ++diff && node === elem ) { outerCache[ type ] = [ dirruns, nodeIndex, diff ]; break; } }

} else if ( useCache && (cache = (elem[ expando ] || (elem[ expando ] = {}))[ type ]) && cache[0] === dirruns ) { diff = cache[1];

} else { while ( (node = ++nodeIndex && node && node[ dir ] || (diff = nodeIndex = 0) || start.pop()) ) {

if ( ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) && ++diff ) { if ( useCache ) { (node[ expando ] || (node[ expando ] = {}))[ type ] = [ dirruns, diff ]; }

if ( node === elem ) { break; } } } }

diff -= last; return diff === first || ( diff % first === 0 && diff / first >= 0 ); } }; },

"PSEUDO": function( pseudo, argument ) { var args, fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] || Sizzle.error( "unsupported pseudo: " + pseudo );

if ( fn[ expando ] ) { return fn( argument ); }

if ( fn.length > 1 ) { args = [ pseudo, pseudo, "", argument ]; return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ? markFunction(function( seed, matches ) { var idx, matched = fn( seed, argument ), i = matched.length; while ( i-- ) { idx = indexOf.call( seed, matched[i] ); seed[ idx ] = !( matches[ idx ] = matched[i] ); } }) : function( elem ) { return fn( elem, 0, args ); }; }

return fn; } },

pseudos: { "not": markFunction(function( selector ) { var input = [], results = [], matcher = compile( selector.replace( rtrim, "$1" ) );

return matcher[ expando ] ? markFunction(function( seed, matches, context, xml ) { var elem, unmatched = matcher( seed, null, xml, [] ), i = seed.length;

while ( i-- ) { if ( (elem = unmatched[i]) ) { seed[i] = !(matches[i] = elem); } } }) : function( elem, context, xml ) { input[0] = elem; matcher( input, null, xml, results ); return !results.pop(); }; }),

"has": markFunction(function( selector ) { return function( elem ) { return Sizzle( selector, elem ).length > 0; }; }),

"contains": markFunction(function( text ) { return function( elem ) { return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1; }; }),

"lang": markFunction( function( lang ) { if ( !ridentifier.test(lang || "") ) { Sizzle.error( "unsupported lang: " + lang ); } lang = lang.replace( runescape, funescape ).toLowerCase(); return function( elem ) { var elemLang; do { if ( (elemLang = documentIsHTML ? elem.lang : elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {

elemLang = elemLang.toLowerCase(); return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0; } } while ( (elem = elem.parentNode) && elem.nodeType === 1 ); return false; }; }),

"target": function( elem ) { var hash = window.location && window.location.hash; return hash && hash.slice( 1 ) === elem.id; },

"root": function( elem ) { return elem === docElem; },

"focus": function( elem ) { return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex); },

"enabled": function( elem ) { return elem.disabled === false; },

"disabled": function( elem ) { return elem.disabled === true; },

"checked": function( elem ) { var nodeName = elem.nodeName.toLowerCase(); return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected); },

"selected": function( elem ) { if ( elem.parentNode ) { elem.parentNode.selectedIndex; }

return elem.selected === true; },

"empty": function( elem ) { for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) { if ( elem.nodeType < 6 ) { return false; } } return true; },

"parent": function( elem ) { return !Expr.pseudos["empty"]( elem ); },

"header": function( elem ) { return rheader.test( elem.nodeName ); },

"input": function( elem ) { return rinputs.test( elem.nodeName ); },

"button": function( elem ) { var name = elem.nodeName.toLowerCase(); return name === "input" && elem.type === "button" || name === "button"; },

"text": function( elem ) { var attr; return elem.nodeName.toLowerCase() === "input" && elem.type === "text" &&

( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" ); },

"first": createPositionalPseudo(function() { return [ 0 ]; }),

"last": createPositionalPseudo(function( matchIndexes, length ) { return [ length - 1 ]; }),

"eq": createPositionalPseudo(function( matchIndexes, length, argument ) { return [ argument < 0 ? argument + length : argument ]; }),

"even": createPositionalPseudo(function( matchIndexes, length ) { var i = 0; for ( ; i < length; i += 2 ) { matchIndexes.push( i ); } return matchIndexes; }),

"odd": createPositionalPseudo(function( matchIndexes, length ) { var i = 1; for ( ; i < length; i += 2 ) { matchIndexes.push( i ); } return matchIndexes; }),

"lt": createPositionalPseudo(function( matchIndexes, length, argument ) { var i = argument < 0 ? argument + length : argument; for ( ; --i >= 0; ) { matchIndexes.push( i ); } return matchIndexes; }),

"gt": createPositionalPseudo(function( matchIndexes, length, argument ) { var i = argument < 0 ? argument + length : argument; for ( ; ++i < length; ) { matchIndexes.push( i ); } return matchIndexes; }) } };

Expr.pseudos["nth"] = Expr.pseudos["eq"];

for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) { Expr.pseudos[ i ] = createInputPseudo( i ); } for ( i in { submit: true, reset: true } ) { Expr.pseudos[ i ] = createButtonPseudo( i ); }

function setFilters() {} setFilters.prototype = Expr.filters = Expr.pseudos; Expr.setFilters = new setFilters();

function tokenize( selector, parseOnly ) { var matched, match, tokens, type, soFar, groups, preFilters, cached = tokenCache[ selector + " " ];

if ( cached ) { return parseOnly ? 0 : cached.slice( 0 ); }

soFar = selector; groups = []; preFilters = Expr.preFilter;

while ( soFar ) {

if ( !matched || (match = rcomma.exec( soFar )) ) { if ( match ) { soFar = soFar.slice( match[0].length ) || soFar; } groups.push( (tokens = []) ); }

matched = false;

if ( (match = rcombinators.exec( soFar )) ) { matched = match.shift(); tokens.push({ value: matched, type: match[0].replace( rtrim, " " ) }); soFar = soFar.slice( matched.length ); }

for ( type in Expr.filter ) { if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] || (match = preFilters[ type ]( match ))) ) { matched = match.shift(); tokens.push({ value: matched, type: type, matches: match }); soFar = soFar.slice( matched.length ); } }

if ( !matched ) { break; } }

return parseOnly ? soFar.length : soFar ? Sizzle.error( selector ) : tokenCache( selector, groups ).slice( 0 ); }

function toSelector( tokens ) { var i = 0, len = tokens.length, selector = ""; for ( ; i < len; i++ ) { selector += tokens[i].value; } return selector; }

function addCombinator( matcher, combinator, base ) { var dir = combinator.dir, checkNonElements = base && dir === "parentNode", doneName = done++;

return combinator.first ? function( elem, context, xml ) { while ( (elem = elem[ dir ]) ) { if ( elem.nodeType === 1 || checkNonElements ) { return matcher( elem, context, xml ); } } } :

function( elem, context, xml ) { var oldCache, outerCache, newCache = [ dirruns, doneName ];

if ( xml ) { while ( (elem = elem[ dir ]) ) { if ( elem.nodeType === 1 || checkNonElements ) { if ( matcher( elem, context, xml ) ) { return true; } } } } else { while ( (elem = elem[ dir ]) ) { if ( elem.nodeType === 1 || checkNonElements ) { outerCache = elem[ expando ] || (elem[ expando ] = {}); if ( (oldCache = outerCache[ dir ]) && oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {

return (newCache[ 2 ] = oldCache[ 2 ]); } else { outerCache[ dir ] = newCache;

if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) { return true; } } } } } }; }

function elementMatcher( matchers ) { return matchers.length > 1 ? function( elem, context, xml ) { var i = matchers.length; while ( i-- ) { if ( !matchers[i]( elem, context, xml ) ) { return false; } } return true; } : matchers[0]; }

function multipleContexts( selector, contexts, results ) { var i = 0, len = contexts.length; for ( ; i < len; i++ ) { Sizzle( selector, contexts[i], results ); } return results; }

function condense( unmatched, map, filter, context, xml ) { var elem, newUnmatched = [], i = 0, len = unmatched.length, mapped = map != null;

for ( ; i < len; i++ ) { if ( (elem = unmatched[i]) ) { if ( !filter || filter( elem, context, xml ) ) { newUnmatched.push( elem ); if ( mapped ) { map.push( i ); } } } }

return newUnmatched; }

function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) { if ( postFilter && !postFilter[ expando ] ) { postFilter = setMatcher( postFilter ); } if ( postFinder && !postFinder[ expando ] ) { postFinder = setMatcher( postFinder, postSelector ); } return markFunction(function( seed, results, context, xml ) { var temp, i, elem, preMap = [], postMap = [], preexisting = results.length,

elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),

matcherIn = preFilter && ( seed || !selector ) ? condense( elems, preMap, preFilter, context, xml ) : elems,

matcherOut = matcher ? postFinder || ( seed ? preFilter : preexisting || postFilter ) ?

[] :

results : matcherIn;

if ( matcher ) { matcher( matcherIn, matcherOut, context, xml ); }

if ( postFilter ) { temp = condense( matcherOut, postMap ); postFilter( temp, [], context, xml );

i = temp.length; while ( i-- ) { if ( (elem = temp[i]) ) { matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem); } } }

if ( seed ) { if ( postFinder || preFilter ) { if ( postFinder ) { temp = []; i = matcherOut.length; while ( i-- ) { if ( (elem = matcherOut[i]) ) { temp.push( (matcherIn[i] = elem) ); } } postFinder( null, (matcherOut = []), temp, xml ); }

i = matcherOut.length; while ( i-- ) { if ( (elem = matcherOut[i]) && (temp = postFinder ? indexOf.call( seed, elem ) : preMap[i]) > -1 ) {

seed[temp] = !(results[temp] = elem); } } }

} else { matcherOut = condense( matcherOut === results ? matcherOut.splice( preexisting, matcherOut.length ) : matcherOut ); if ( postFinder ) { postFinder( null, results, matcherOut, xml ); } else { push.apply( results, matcherOut ); } } }); }

function matcherFromTokens( tokens ) { var checkContext, matcher, j, len = tokens.length, leadingRelative = Expr.relative[ tokens[0].type ], implicitRelative = leadingRelative || Expr.relative[" "], i = leadingRelative ? 1 : 0,

matchContext = addCombinator( function( elem ) { return elem === checkContext; }, implicitRelative, true ), matchAnyContext = addCombinator( function( elem ) { return indexOf.call( checkContext, elem ) > -1; }, implicitRelative, true ), matchers = [ function( elem, context, xml ) { return ( !leadingRelative && ( xml || context !== outermostContext ) ) || ( (checkContext = context).nodeType ? matchContext( elem, context, xml ) : matchAnyContext( elem, context, xml ) ); } ];

for ( ; i < len; i++ ) { if ( (matcher = Expr.relative[ tokens[i].type ]) ) { matchers = [ addCombinator(elementMatcher( matchers ), matcher) ]; } else { matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );

if ( matcher[ expando ] ) { j = ++i; for ( ; j < len; j++ ) { if ( Expr.relative[ tokens[j].type ] ) { break; } } return setMatcher( i > 1 && elementMatcher( matchers ), i > 1 && toSelector( tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" }) ).replace( rtrim, "$1" ), matcher, i < j && matcherFromTokens( tokens.slice( i, j ) ), j < len && matcherFromTokens( (tokens = tokens.slice( j )) ), j < len && toSelector( tokens ) ); } matchers.push( matcher ); } }

return elementMatcher( matchers ); }

function matcherFromGroupMatchers( elementMatchers, setMatchers ) { var bySet = setMatchers.length > 0, byElement = elementMatchers.length > 0, superMatcher = function( seed, context, xml, results, outermost ) { var elem, j, matcher, matchedCount = 0, i = "0", unmatched = seed && [], setMatched = [], contextBackup = outermostContext, elems = seed || byElement && Expr.find["TAG"]( "*", outermost ), dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1), len = elems.length;

if ( outermost ) { outermostContext = context !== document && context; }

for ( ; i !== len && (elem = elems[i]) != null; i++ ) { if ( byElement && elem ) { j = 0; while ( (matcher = elementMatchers[j++]) ) { if ( matcher( elem, context, xml ) ) { results.push( elem ); break; } } if ( outermost ) { dirruns = dirrunsUnique; } }

if ( bySet ) { if ( (elem = !matcher && elem) ) { matchedCount--; }

if ( seed ) { unmatched.push( elem ); } } }

matchedCount += i; if ( bySet && i !== matchedCount ) { j = 0; while ( (matcher = setMatchers[j++]) ) { matcher( unmatched, setMatched, context, xml ); }

if ( seed ) { if ( matchedCount > 0 ) { while ( i-- ) { if ( !(unmatched[i] || setMatched[i]) ) { setMatched[i] = pop.call( results ); } } }

setMatched = condense( setMatched ); }

push.apply( results, setMatched );

if ( outermost && !seed && setMatched.length > 0 && ( matchedCount + setMatchers.length ) > 1 ) {

Sizzle.uniqueSort( results ); } }

if ( outermost ) { dirruns = dirrunsUnique; outermostContext = contextBackup; }

return unmatched; };

return bySet ? markFunction( superMatcher ) : superMatcher; }

compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) { var i, setMatchers = [], elementMatchers = [], cached = compilerCache[ selector + " " ];

if ( !cached ) { if ( !match ) { match = tokenize( selector ); } i = match.length; while ( i-- ) { cached = matcherFromTokens( match[i] ); if ( cached[ expando ] ) { setMatchers.push( cached ); } else { elementMatchers.push( cached ); } }

cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );

cached.selector = selector; } return cached; };

/**

* A low-level selection function that works with Sizzle's compiled
*  selector functions
* @param {String|Function} selector A selector or a pre-compiled
*  selector function built with Sizzle.compile
* @param {Element} context
* @param {Array} [results]
* @param {Array} [seed] A set of elements to match against
*/

select = Sizzle.select = function( selector, context, results, seed ) { var i, tokens, token, type, find, compiled = typeof selector === "function" && selector, match = !seed && tokenize( (selector = compiled.selector || selector) );

results = results || [];

if ( match.length === 1 ) {

tokens = match[0] = match[0].slice( 0 ); if ( tokens.length > 2 && (token = tokens[0]).type === "ID" && support.getById && context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[1].type ] ) {

context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0]; if ( !context ) { return results;

} else if ( compiled ) { context = context.parentNode; }

selector = selector.slice( tokens.shift().value.length ); }

i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length; while ( i-- ) { token = tokens[i];

if ( Expr.relative[ (type = token.type) ] ) { break; } if ( (find = Expr.find[ type ]) ) { if ( (seed = find( token.matches[0].replace( runescape, funescape ), rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context )) ) {

tokens.splice( i, 1 ); selector = seed.length && toSelector( tokens ); if ( !selector ) { push.apply( results, seed ); return results; }

break; } } } }

( compiled || compile( selector, match ) )( seed, context, !documentIsHTML, results, rsibling.test( selector ) && testContext( context.parentNode ) || context ); return results; };


support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;

support.detectDuplicates = !!hasDuplicate;

setDocument();

support.sortDetached = assert(function( div1 ) { return div1.compareDocumentPosition( document.createElement("div") ) & 1; });

if ( !assert(function( div ) { div.innerHTML = "<a href='#'></a>"; return div.firstChild.getAttribute("href") === "#" ; }) ) { addHandle( "type|href|height|width", function( elem, name, isXML ) { if ( !isXML ) { return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 ); } }); }

if ( !support.attributes || !assert(function( div ) { div.innerHTML = "<input/>"; div.firstChild.setAttribute( "value", "" ); return div.firstChild.getAttribute( "value" ) === ""; }) ) { addHandle( "value", function( elem, name, isXML ) { if ( !isXML && elem.nodeName.toLowerCase() === "input" ) { return elem.defaultValue; } }); }

if ( !assert(function( div ) { return div.getAttribute("disabled") == null; }) ) { addHandle( booleans, function( elem, name, isXML ) { var val; if ( !isXML ) { return elem[ name ] === true ? name.toLowerCase() : (val = elem.getAttributeNode( name )) && val.specified ? val.value : null; } }); }

if ( typeof define === "function" && define.amd ) { define(function() { return Sizzle; }); } else if ( typeof module !== "undefined" && module.exports ) { module.exports = Sizzle; } else { window.Sizzle = Sizzle; }

})( window );

(function(engine) {
 var extendElements = Prototype.Selector.extendElements;
 function select(selector, scope) {
   return extendElements(engine(selector, scope || document));
 }
 function match(element, selector) {
   return engine.matches(selector, [element]).length == 1;
 }
 Prototype.Selector.engine = engine;
 Prototype.Selector.select = select;
 Prototype.Selector.match = match;

})(Sizzle);

window.Sizzle = Prototype._original_property; delete Prototype._original_property;

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, accumulator, initial;
   if (options.hash) {
     initial = {};
     accumulator = function(result, key, value) {
       if (key in result) {
         if (!Object.isArray(result[key])) result[key] = [result[key]];
         result[key] = result[key].concat(value);
       } else result[key] = value;
       return result;
     };
   } else {
     initial = ;
     accumulator = function(result, key, values) {
       if (!Object.isArray(values)) {values = [values];}
       if (!values.length) {return result;}
       var encodedKey = encodeURIComponent(key).gsub(/%20/, '+');
       return result + (result ? "&" : "") + values.map(function (value) {
         value = value.gsub(/(\r)?\n/, '\r\n');
         value = encodeURIComponent(value);
         value = value.gsub(/%20/, '+');
         return encodedKey + "=" + value;
       }).join("&");
     };
   }
   return elements.inject(initial, 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)))) {
         result = accumulator(result, key, value);
       }
     }
     return result;
   });
 }

};

Form.Methods = {

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


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

 function input(element, value) {
   switch (element.type.toLowerCase()) {
     case 'checkbox':
     case 'radio':
       return inputSelector(element, value);
     default:
       return valueSelector(element, value);
   }
 }
 function inputSelector(element, value) {
   if (Object.isUndefined(value))
     return element.checked ? element.value : null;
   else element.checked = !!value;
 }
 function valueSelector(element, value) {
   if (Object.isUndefined(value)) return element.value;
   else element.value = value;
 }
 function select(element, value) {
   if (Object.isUndefined(value))
     return (element.type === 'select-one' ? selectOne : selectMany)(element);
   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);
   }
 }
 function selectOne(element) {
   var index = element.selectedIndex;
   return index >= 0 ? optionValue(element.options[index]) : null;
 }
 function selectMany(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(optionValue(opt));
   }
   return values;
 }
 function optionValue(opt) {
   return Element.hasAttribute(opt, 'value') ? opt.value : opt.text;
 }
 return {
   input:         input,
   inputSelector: inputSelector,
   textarea:      valueSelector,
   select:        select,
   selectOne:     selectOne,
   selectMany:    selectMany,
   optionValue:   optionValue,
   button:        valueSelector
 };

})();

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


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(GLOBAL) {

 var DIV = document.createElement('div');
 var docEl = document.documentElement;
 var MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED = 'onmouseenter' in docEl
  && 'onmouseleave' in docEl;
 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
 };


 var isIELegacyEvent = function(event) { return false; };
 if (window.attachEvent) {
   if (window.addEventListener) {
     isIELegacyEvent = function(event) {
       return !(event instanceof window.Event);
     };
   } else {
     isIELegacyEvent = function(event) { return true; };
   }
 }
 var _isButton;
 function _isButtonForDOMEvents(event, code) {
   return event.which ? (event.which === code + 1) : (event.button === code);
 }
 var legacyButtonMap = { 0: 1, 1: 4, 2: 2 };
 function _isButtonForLegacyEvents(event, code) {
   return event.button === legacyButtonMap[code];
 }
 function _isButtonForWebKit(event, code) {
   switch (code) {
     case 0: return event.which == 1 && !event.metaKey;
     case 1: return event.which == 2 || (event.which == 1 && event.metaKey);
     case 2: return event.which == 3;
     default: return false;
   }
 }
 if (window.attachEvent) {
   if (!window.addEventListener) {
     _isButton = _isButtonForLegacyEvents;
   } else {
     _isButton = function(event, code) {
       return isIELegacyEvent(event) ? _isButtonForLegacyEvents(event, code) :
        _isButtonForDOMEvents(event, code);
     }
   }
 } else if (Prototype.Browser.WebKit) {
   _isButton = _isButtonForWebKit;
 } else {
   _isButton = _isButtonForDOMEvents;
 }
 function isLeftClick(event)   { return _isButton(event, 0) }
 function isMiddleClick(event) { return _isButton(event, 1) }
 function isRightClick(event)  { return _isButton(event, 2) }
 function element(event) {
   return Element.extend(_element(event));
 }
 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;
   }
   return node.nodeType == Node.TEXT_NODE ? node.parentNode : node;
 }
 function findElement(event, expression) {
   var element = _element(event), selector = Prototype.Selector;
   if (!expression) return Element.extend(element);
   while (element) {
     if (Object.isElement(element) && selector.match(element, expression))
       return Element.extend(element);
     element = element.parentNode;
   }
 }
 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 (window.attachEvent) {
   function _relatedTarget(event) {
     var element;
     switch (event.type) {
       case 'mouseover':
       case 'mouseenter':
         element = event.fromElement;
         break;
       case 'mouseout':
       case 'mouseleave':
         element = event.toElement;
         break;
       default:
         return null;
     }
     return Element.extend(element);
   }
   var additionalMethods = {
     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 (!isIELegacyEvent(event)) return event;
     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
     });
     Object.extend(event, methods);
     Object.extend(event, additionalMethods);
     return event;
   };
 } else {
   Event.extend = Prototype.K;
 }
 if (window.addEventListener) {
   Event.prototype = window.Event.prototype || document.createEvent('HTMLEvents').__proto__;
   Object.extend(Event.prototype, methods);
 }
 var EVENT_TRANSLATIONS = {
   mouseenter: 'mouseover',
   mouseleave: 'mouseout'
 };
 function getDOMEventName(eventName) {
   return EVENT_TRANSLATIONS[eventName] || eventName;
 }
 if (MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED)
   getDOMEventName = Prototype.K;
 function getUniqueElementID(element) {
   if (element === window) return 0;
   if (typeof element._prototypeUID === 'undefined')
     element._prototypeUID = Element.Storage.UID++;
   return element._prototypeUID;
 }
 function getUniqueElementID_IE(element) {
   if (element === window) return 0;
   if (element == document) return 1;
   return element.uniqueID;
 }
 if ('uniqueID' in DIV)
   getUniqueElementID = getUniqueElementID_IE;
 function isCustomEvent(eventName) {
   return eventName.include(':');
 }
 Event._isCustomEvent = isCustomEvent;
 function getRegistryForElement(element, uid) {
   var CACHE = GLOBAL.Event.cache;
   if (Object.isUndefined(uid))
     uid = getUniqueElementID(element);
   if (!CACHE[uid]) CACHE[uid] = { element: element };
   return CACHE[uid];
 }
 function destroyRegistryForElement(element, uid) {
   if (Object.isUndefined(uid))
     uid = getUniqueElementID(element);
   delete GLOBAL.Event.cache[uid];
 }


 function register(element, eventName, handler) {
   var registry = getRegistryForElement(element);
   if (!registry[eventName]) registry[eventName] = [];
   var entries = registry[eventName];
   var i = entries.length;
   while (i--)
     if (entries[i].handler === handler) return null;
   var uid = getUniqueElementID(element);
   var responder = GLOBAL.Event._createResponder(uid, eventName, handler);
   var entry = {
     responder: responder,
     handler:   handler
   };
   entries.push(entry);
   return entry;
 }
 function unregister(element, eventName, handler) {
   var registry = getRegistryForElement(element);
   var entries = registry[eventName];
   if (!entries) return;
   var i = entries.length, entry;
   while (i--) {
     if (entries[i].handler === handler) {
       entry = entries[i];
       break;
     }
   }
   if (!entry) return;
   var index = entries.indexOf(entry);
   entries.splice(index, 1);
   return entry;
 }


 function observe(element, eventName, handler) {
   element = $(element);
   var entry = register(element, eventName, handler);
   if (entry === null) return element;
   var responder = entry.responder;
   if (isCustomEvent(eventName))
     observeCustomEvent(element, eventName, responder);
   else
     observeStandardEvent(element, eventName, responder);
   return element;
 }
 function observeStandardEvent(element, eventName, responder) {
   var actualEventName = getDOMEventName(eventName);
   if (element.addEventListener) {
     element.addEventListener(actualEventName, responder, false);
   } else {
     element.attachEvent('on' + actualEventName, responder);
   }
 }
 function observeCustomEvent(element, eventName, responder) {
   if (element.addEventListener) {
     element.addEventListener('dataavailable', responder, false);
   } else {
     element.attachEvent('ondataavailable', responder);
     element.attachEvent('onlosecapture',   responder);
   }
 }
 function stopObserving(element, eventName, handler) {
   element = $(element);
   var handlerGiven = !Object.isUndefined(handler),
    eventNameGiven = !Object.isUndefined(eventName);
   if (!eventNameGiven && !handlerGiven) {
     stopObservingElement(element);
     return element;
   }
   if (!handlerGiven) {
     stopObservingEventName(element, eventName);
     return element;
   }
   var entry = unregister(element, eventName, handler);
   if (!entry) return element;
   removeEvent(element, eventName, entry.responder);
   return element;
 }
 function stopObservingStandardEvent(element, eventName, responder) {
   var actualEventName = getDOMEventName(eventName);
   if (element.removeEventListener) {
     element.removeEventListener(actualEventName, responder, false);
   } else {
     element.detachEvent('on' + actualEventName, responder);
   }
 }
 function stopObservingCustomEvent(element, eventName, responder) {
   if (element.removeEventListener) {
     element.removeEventListener('dataavailable', responder, false);
   } else {
     element.detachEvent('ondataavailable', responder);
     element.detachEvent('onlosecapture',   responder);
   }
 }


 function stopObservingElement(element) {
   var uid = getUniqueElementID(element), registry = GLOBAL.Event.cache[uid];
   if (!registry) return;
   destroyRegistryForElement(element, uid);
   var entries, i;
   for (var eventName in registry) {
     if (eventName === 'element') continue;
     entries = registry[eventName];
     i = entries.length;
     while (i--)
       removeEvent(element, eventName, entries[i].responder);
   }
 }
 function stopObservingEventName(element, eventName) {
   var registry = getRegistryForElement(element);
   var entries = registry[eventName];
   if (!entries) return;
   delete registry[eventName];
   var i = entries.length;
   while (i--)
     removeEvent(element, eventName, entries[i].responder);
 }


 function removeEvent(element, eventName, handler) {
   if (isCustomEvent(eventName))
     stopObservingCustomEvent(element, eventName, handler);
   else
     stopObservingStandardEvent(element, eventName, handler);
 }


 function getFireTarget(element) {
   if (element !== document) return element;
   if (document.createEvent && !element.dispatchEvent)
     return document.documentElement;
   return element;
 }
 function fire(element, eventName, memo, bubble) {
   element = getFireTarget($(element));
   if (Object.isUndefined(bubble)) bubble = true;
   memo = memo || {};
   var event = fireEvent(element, eventName, memo, bubble);
   return Event.extend(event);
 }
 function fireEvent_DOM(element, eventName, memo, bubble) {
   var event = document.createEvent('HTMLEvents');
   event.initEvent('dataavailable', bubble, true);
   event.eventName = eventName;
   event.memo = memo;
   element.dispatchEvent(event);
   return event;
 }
 function fireEvent_IE(element, eventName, memo, bubble) {
   var event = document.createEventObject();
   event.eventType = bubble ? 'ondataavailable' : 'onlosecapture';
   event.eventName = eventName;
   event.memo = memo;
   element.fireEvent(event.eventType, event);
   return event;
 }
 var fireEvent = document.createEvent ? fireEvent_DOM : fireEvent_IE;


 Event.Handler = Class.create({
   initialize: function(element, eventName, selector, callback) {
     this.element   = $(element);
     this.eventName = eventName;
     this.selector  = selector;
     this.callback  = callback;
     this.handler   = this.handleEvent.bind(this);
   },


   start: function() {
     Event.observe(this.element, this.eventName, this.handler);
     return this;
   },
   stop: function() {
     Event.stopObserving(this.element, this.eventName, this.handler);
     return this;
   },
   handleEvent: function(event) {
     var element = Event.findElement(event, this.selector);
     if (element) this.callback.call(this.element, event, element);
   }
 });
 function on(element, eventName, selector, callback) {
   element = $(element);
   if (Object.isFunction(selector) && Object.isUndefined(callback)) {
     callback = selector, selector = null;
   }
   return new Event.Handler(element, eventName, selector, callback).start();
 }
 Object.extend(Event, Event.Methods);
 Object.extend(Event, {
   fire:          fire,
   observe:       observe,
   stopObserving: stopObserving,
   on:            on
 });
 Element.addMethods({
   fire:          fire,
   observe:       observe,
   stopObserving: stopObserving,
   on:            on
 });
 Object.extend(document, {
   fire:          fire.methodize(),
   observe:       observe.methodize(),
   stopObserving: stopObserving.methodize(),
   on:            on.methodize(),
   loaded:        false
 });
 if (GLOBAL.Event) Object.extend(window.Event, Event);
 else GLOBAL.Event = Event;
 GLOBAL.Event.cache = {};
 function destroyCache_IE() {
   GLOBAL.Event.cache = null;
 }
 if (window.attachEvent)
   window.attachEvent('onunload', destroyCache_IE);
 DIV = null;
 docEl = null;

})(this);

(function(GLOBAL) {

 /* Code for creating leak-free event responders is based on work by
  John-David Dalton. */
 var docEl = document.documentElement;
 var MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED = 'onmouseenter' in docEl
   && 'onmouseleave' in docEl;
 function isSimulatedMouseEnterLeaveEvent(eventName) {
   return !MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED &&
    (eventName === 'mouseenter' || eventName === 'mouseleave');
 }
 function createResponder(uid, eventName, handler) {
   if (Event._isCustomEvent(eventName))
     return createResponderForCustomEvent(uid, eventName, handler);
   if (isSimulatedMouseEnterLeaveEvent(eventName))
     return createMouseEnterLeaveResponder(uid, eventName, handler);
   return function(event) {
     if (!Event.cache) return;
     var element = Event.cache[uid].element;
     Event.extend(event, element);
     handler.call(element, event);
   };
 }
 function createResponderForCustomEvent(uid, eventName, handler) {
   return function(event) {
     var element = Event.cache[uid].element;
     if (Object.isUndefined(event.eventName))
       return false;
     if (event.eventName !== eventName)
       return false;
     Event.extend(event, element);
     handler.call(element, event);
   };
 }
 function createMouseEnterLeaveResponder(uid, eventName, handler) {
   return function(event) {
     var element = Event.cache[uid].element;
     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);
   }
 }
 GLOBAL.Event._createResponder = createResponder;
 docEl = null;

})(this);

(function(GLOBAL) {

 /* 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.detachEvent('onreadystatechange', checkReadyState);
     fireContentLoadedEvent();
   }
 }
 function pollDoScroll() {
   try {
     document.documentElement.doScroll('left');
   } catch (e) {
     TIMER = pollDoScroll.defer();
     return;
   }
   fireContentLoadedEvent();
 }


 if (document.readyState === 'complete') {
   fireContentLoadedEvent();
   return;
 }
 if (document.addEventListener) {
   document.addEventListener('DOMContentLoaded', fireContentLoadedEvent, false);
 } else {
   document.attachEvent('onreadystatechange', checkReadyState);
   if (window == top) TIMER = pollDoScroll.defer();
 }
 Event.observe(window, 'load', fireContentLoadedEvent);

})(this);


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 = $(element);
 },
 _each: function(iterator, context) {
   this.element.className.split(/\s+/).select(function(name) {
     return name.length > 0;
   })._each(iterator, context);
 },
 set: function(className) {
   this.element.className = className;
 },
 add: function(classNameToAdd) {
   if (this.include(classNameToAdd)) return;
   this.set($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);

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

(function() {

 window.Selector = Class.create({
   initialize: function(expression) {
     this.expression = expression.strip();
   },
   findElements: function(rootElement) {
     return Prototype.Selector.select(this.expression, rootElement);
   },
   match: function(element) {
     return Prototype.Selector.match(element, this.expression);
   },
   toString: function() {
     return this.expression;
   },
   inspect: function() {
     return "#<Selector: " + this.expression + ">";
   }
 });
 Object.extend(Selector, {
   matchElements: function(elements, expression) {
     var match = Prototype.Selector.match,
         results = [];
     for (var i = 0, length = elements.length; i < length; i++) {
       var element = elements[i];
       if (match(element, expression)) {
         results.push(Element.extend(element));
       }
     }
     return results;
   },
   findElement: function(elements, expression, index) {
     index = index || 0;
     var matchIndex = 0, element;
     for (var i = 0, length = elements.length; i < length; i++) {
       element = elements[i];
       if (Prototype.Selector.match(element, expression) && index === matchIndex++) {
         return Element.extend(element);
       }
     }
   },
   findChildElements: function(element, expressions) {
     var selector = expressions.toArray().join(', ');
     return Prototype.Selector.select(selector, element || document);
   }
 });

})();