function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

/*  Prototype JavaScript framework, version 1.7
*  (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',

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

 emptyFunction: function() { },

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

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


var Abstract = { };


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

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

   return returnValue;
 }
};

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

var Class = (function() {

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

   return this;
 }

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

 var _toString = Object.prototype.toString,
     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';

 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],
       type = typeof value;

   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';
   }

   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(); }
       }
       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 (object.hasOwnProperty(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;
   var __method = this, args = slice.call(arguments, 1);
   return function() {
     var a = merge(args, arguments);
     return __method.apply(context, a);
   }
 }

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

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

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

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

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

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

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



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

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

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

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

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

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

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

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

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

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

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

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

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

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

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


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

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

       if (value != undefined) value = decodeURIComponent(value);

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

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

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

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

 function camelize() {
   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) {
   return this.lastIndexOf(pattern, 0) === 0;
 }

 function endsWith(pattern) {
   var d = this.length - 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:     startsWith,
   endsWith:       endsWith,
   empty:          empty,
   blank:          blank,
   interpolate:    interpolate
 };
})());

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

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

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

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

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

     match = pattern.exec(expr);
     if (match == null) return before;

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

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

var $break = { };

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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









 return {
   each:       each,
   eachSlice:  eachSlice,
   all:        all,
   every:      all,
   any:        any,
   some:       any,
   collect:    collect,
   map:        collect,
   detect:     detect,
   findAll:    findAll,
   select:     findAll,
   filter:     findAll,
   grep:       grep,
   include:    include,
   member:     include,
   inGroupsOf: inGroupsOf,
   inject:     inject,
   invoke:     invoke,
   max:        max,
   min:        min,
   partition:  partition,
   pluck:      pluck,
   reject:     reject,
   sortBy:     sortBy,
   toArray:    toArray,
   entries:    toArray,
   zip:        zip,
   size:       size,
   inspect:    inspect,
   find:       detect
 };
})();

function $A(iterable) {
 if (!iterable) return [];
 if ('toArray' in Object(iterable)) return iterable.toArray();
 var length = iterable.length || 0, results = new Array(length);
 while (length--) results[length] = iterable[length];
 return results;
}


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

Array.from = $A;


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

 function each(iterator, 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.detect(function(value) { return item === value });
   });
 }


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

 function size() {
   return this.length;
 }

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

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

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

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

 Object.extend(arrayProto, Enumerable);

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

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

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

 if (CONCAT_ARGUMENTS_BUGGY) arrayProto.concat = concat;

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

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


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

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

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

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

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



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

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

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

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

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

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

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

     if (values && typeof values == 'object') {
       if (Object.isArray(values)) {
         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) {
   var value = this.start;
   while (this.include(value)) {
     iterator(value);
     value = value.succ();
   }
 }

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

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



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

 activeRequestCount: 0
};

Ajax.Responders = {
 responders: [],

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

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

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

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

Object.extend(Ajax.Responders, Enumerable);

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

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

   if (Object.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)
     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;
   json = decodeURIComponent(escape(json));
   try {
     return json.evalJSON(this.request.options.sanitizeJSON ||
       !this.request.isSameOrigin());
   } catch (e) {
     this.request.dispatchException(e);
   }
 },

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

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

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

   $super(url, options);
 },

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

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

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

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

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

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

   this.start();
 },

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

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

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

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

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


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

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

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

if (!Node) var Node = { };

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



(function(global) {
 function shouldUseCache(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 element = global.Element;

 global.Element = function(tagName, attributes) {
   attributes = attributes || { };
   tagName = tagName.toLowerCase();
   var cache = Element.cache;

   if (HAS_EXTENDED_CREATE_ELEMENT_SYNTAX && attributes.name) {
     tagName = '<' + tagName + ' name="' + attributes.name + '">';
     delete attributes.name;
     return Element.writeAttribute(document.createElement(tagName), attributes);
   }

   if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));

   var node = shouldUseCache(tagName, attributes) ?
    cache[tagName].cloneNode(false) : document.createElement(tagName);

   return Element.writeAttribute(node, attributes);
 };

 Object.extend(global.Element, element || { });
 if (element) global.Element.prototype = element.prototype;

})(this);

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

Element._purgeElement = function(element) {
 var uid = element._prototypeUID;
 if (uid) {
   Element.stopObserving(element);
   element._prototypeUID = void 0;
   delete Element.Storage[uid];
 }
}

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

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

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

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

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

 update: (function(){

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

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

   var 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 purgeElement = Element._purgeElement;

     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 Element._insertionTranslations.tags) {
         while (element.firstChild) {
           element.removeChild(element.firstChild);
         }
         Element._getContentFromAnonymousElement(tagName, content.stripScripts())
           .each(function(node) {
             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 = Element._getContentFromAnonymousElement(tagName, content.stripScripts(), true);
         nodes.each(function(node) { element.appendChild(node) });
       }
       else {
         element.innerHTML = content.stripScripts();
       }
     }
     else {
       element.innerHTML = content.stripScripts();
     }

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

   return update;
 })(),

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

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

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

   var content, insert, tagName, childNodes;

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

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

     content = Object.toHTML(content);

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

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

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

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

   return element;
 },

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

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

 recursivelyCollect: function(element, property, maximumLength) {
   element = $(element);
   maximumLength = maximumLength || -1;
   var elements = [];

   while (element = element[property]) {
     if (element.nodeType == 1)
       elements.push(Element.extend(element));
     if (elements.length == maximumLength)
       break;
   }

   return elements;
 },

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

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

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

 immediateDescendants: function(element) {
   var results = [], child = $(element).firstChild;
   while (child) {
     if (child.nodeType === 1) {
       results.push(Element.extend(child));
     }
     child = child.nextSibling;
   }
   return results;
 },

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

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

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

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

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

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

 previous: function(element, expression, index) {
   element = $(element);
   if (Object.isNumber(expression)) index = expression, expression = false;
   if (!Object.isNumber(index)) index = 0;

   if (expression) {
     return Prototype.Selector.find(element.previousSiblings(), expression, index);
   } else {
     return element.recursivelyCollect("previousSibling", index + 1)[index];
   }
 },

 next: function(element, expression, index) {
   element = $(element);
   if (Object.isNumber(expression)) index = expression, expression = false;
   if (!Object.isNumber(index)) index = 0;

   if (expression) {
     return Prototype.Selector.find(element.nextSiblings(), expression, index);
   } else {
     var maximumLength = Object.isNumber(index) ? index + 1 : 1;
     return element.recursivelyCollect("nextSibling", index + 1)[index];
   }
 },


 select: function(element) {
   element = $(element);
   var expressions = Array.prototype.slice.call(arguments, 1).join(', ');
   return Prototype.Selector.select(expressions, element);
 },

 adjacent: function(element) {
   element = $(element);
   var expressions = Array.prototype.slice.call(arguments, 1).join(', ');
   return Prototype.Selector.select(expressions, element.parentNode).without(element);
 },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

   return false;
 },

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

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

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

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

   return element;
 },

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

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

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

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

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

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

   source = $(source);
   var p = Element.viewportOffset(source), delta = [0, 0], parent = null;

   element = $(element);

   if (Element.getStyle(element, 'position') == 'absolute') {
     parent = Element.getOffsetParent(element);
     delta = Element.viewportOffset(parent);
   }

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

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

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

 childElements: Element.Methods.immediateDescendants
});

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

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

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

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

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

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

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

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

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

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

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

 Element._attributeTranslations = (function(){

   var classProp = 'className',
       forProp = 'for',
       el = document.createElement('div');

   el.setAttribute(classProp, 'x');

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

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

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

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

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

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

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

 Element._attributeTranslations.has = {};

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

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

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

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

}

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

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

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

   return element;
 };
}

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

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

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

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

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

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

Element._getContentFromAnonymousElement = function(tagName, html, force) {
 var div = new Element('div'),
     t = Element._insertionTranslations.tags[tagName];

 var workaround = false;
 if (t) workaround = true;
 else if (force) {
   workaround = true;
   t = ['', '', 0];
 }

 if (workaround) {
   div.innerHTML = '&nbsp;' + 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);
};

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

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

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

Element.Methods.ByTag = { };

Object.extend(Element, Element.Methods);

(function(div) {

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

 div = null;

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

Element.extend = (function() {

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

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

 var HTMLOBJECTELEMENT_PROTOTYPE_BUGGY = checkDeficiency('object');

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

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

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

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

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

   extendElementWith(element, methods);

   element._extendedByPrototype = Prototype.emptyFunction;
   return element;

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

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

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

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

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

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

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

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

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

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

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

   element = null;
   return proto;
 }

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

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

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

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

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


document.viewport = {

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

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

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

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

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

   return document.documentElement;
 }

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

   property[D] = 'client' + D;

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

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

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


Element.Storage = {
 UID: 1
};

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

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

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

   return Element.Storage[uid];
 },

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

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

   return element;
 },

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

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

   return value;
 },

 clone: function(element, deep) {
   if (!(element = $(element))) return;
   var clone = element.cloneNode(deep);
   clone._prototypeUID = void 0;
   if (deep) {
     var descendants = Element.select(clone, '*'),
         i = descendants.length;
     while (i--) {
       descendants[i]._prototypeUID = void 0;
     }
   }
   return Element.extend(clone);
 },

 purge: function(element) {
   if (!(element = $(element))) return;
   var purgeElement = Element._purgeElement;

   purgeElement(element);

   var descendants = element.getElementsByTagName('*'),
    i = descendants.length;

   while (i--) purgeElement(descendants[i]);

   return null;
 }
});

(function() {

 function toDecimal(pctString) {
   var match = pctString.match(/^(\d+)%?$/i);
   if (!match) return null;
   return (Number(match[1]) / 100);
 }

 function getPixelValue(value, property, context) {
   var element = null;
   if (Object.isElement(value)) {
     element = value;
     value = element.getStyle(property);
   }

   if (value === null) {
     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);
     var whole = null;
     var position = element.getStyle('position');

     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) {
   var originalElement = 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._prepared) return;

     var element = this.element;
     if (isDisplayed(element)) {
       this._prepared = 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 = element.getStyle('position'),
      width = element.getStyle('width');

     if (width === "0px" || width === null) {
       element.style.display = 'block';
       width = element.getStyle('width');
     }

     var context = (position === 'fixed') ? document.viewport :
      element.parentNode;

     element.setStyle({
       position:   'absolute',
       visibility: 'hidden',
       display:    'block'
     });

     var positionedWidth = element.getStyle('width');

     var newWidth;
     if (width && (positionedWidth === width)) {
       newWidth = getPixelValue(element, 'width', context);
     } else if (position === 'absolute' || position === 'fixed') {
       newWidth = getPixelValue(element, 'width', 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._prepared = true;
   },

   _end: function() {
     var element = this.element;
     var originalStyles = element.retrieve('prototype_original_styles');
     element.store('prototype_original_styles', null);
     element.setStyle(originalStyles);
     this._prepared = 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));
   },

   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 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 {
     valueT += element.scrollTop  || 0;
     valueL += element.scrollLeft || 0;
     element = element.parentNode;
   } while (element);
   return new Element.Offset(valueL, valueT);
 }

 function viewportOffset(forElement) {
   element = $(element);
   var valueT = 0, valueL = 0, docBody = document.body;

   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', {
     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;
 }

 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,
   getDimensions:          getDimensions,
   getOffsetParent:        getOffsetParent,
   cumulativeOffset:       cumulativeOffset,
   positionedOffset:       positionedOffset,
   cumulativeScrollOffset: cumulativeScrollOffset,
   viewportOffset:         viewportOffset,
   absolutize:             absolutize,
   relativize:             relativize
 });

 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);
     }
   });
 }
})();
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 - v1.0
*  Copyright 2009, The Dojo Foundation
*  Released under the MIT, BSD, and GPL Licenses.
*  More information: http://sizzlejs.com/
*/
(function(){

var chunker = /((?:\((?:\([^()]+\)|[^()]+)+\)|\[(?:\[[^[\]]*\]|['"][^'"]*['"]|[^[\]'"]+)+\]|\\.|[^ >+~,(\[\\]+)+|[>+~])(\s*,\s*)?((?:.|\r|\n)*)/g,
	done = 0,
	toString = Object.prototype.toString,
	hasDuplicate = false,
	baseHasDuplicate = true;

[0, 0].sort(function(){
	baseHasDuplicate = false;
	return 0;
});

var Sizzle = function(selector, context, results, seed) {
	results = results || [];
	var origContext = context = context || document;

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

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

	var parts = [], m, set, checkSet, check, mode, extra, prune = true, contextXML = isXML(context),
		soFar = selector;

	while ( (chunker.exec(""), m = chunker.exec(soFar)) !== null ) {
		soFar = m[3];

		parts.push( m[1] );

		if ( m[2] ) {
			extra = m[3];
			break;
		}
	}

	if ( parts.length > 1 && origPOS.exec( selector ) ) {
		if ( parts.length === 2 && Expr.relative[ parts[0] ] ) {
			set = posProcess( parts[0] + parts[1], context );
		} else {
			set = Expr.relative[ parts[0] ] ?
				[ context ] :
				Sizzle( parts.shift(), context );

			while ( parts.length ) {
				selector = parts.shift();

				if ( Expr.relative[ selector ] )
					selector += parts.shift();

				set = posProcess( selector, set );
			}
		}
	} else {
		if ( !seed && parts.length > 1 && context.nodeType === 9 && !contextXML &&
				Expr.match.ID.test(parts[0]) && !Expr.match.ID.test(parts[parts.length - 1]) ) {
			var ret = Sizzle.find( parts.shift(), context, contextXML );
			context = ret.expr ? Sizzle.filter( ret.expr, ret.set )[0] : ret.set[0];
		}

		if ( context ) {
			var ret = seed ?
				{ expr: parts.pop(), set: makeArray(seed) } :
				Sizzle.find( parts.pop(), parts.length === 1 && (parts[0] === "~" || parts[0] === "+") && context.parentNode ? context.parentNode : context, contextXML );
			set = ret.expr ? Sizzle.filter( ret.expr, ret.set ) : ret.set;

			if ( parts.length > 0 ) {
				checkSet = makeArray(set);
			} else {
				prune = false;
			}

			while ( parts.length ) {
				var cur = parts.pop(), pop = cur;

				if ( !Expr.relative[ cur ] ) {
					cur = "";
				} else {
					pop = parts.pop();
				}

				if ( pop == null ) {
					pop = context;
				}

				Expr.relative[ cur ]( checkSet, pop, contextXML );
			}
		} else {
			checkSet = parts = [];
		}
	}

	if ( !checkSet ) {
		checkSet = set;
	}

	if ( !checkSet ) {
		throw "Syntax error, unrecognized expression: " + (cur || selector);
	}

	if ( toString.call(checkSet) === "[object Array]" ) {
		if ( !prune ) {
			results.push.apply( results, checkSet );
		} else if ( context && context.nodeType === 1 ) {
			for ( var i = 0; checkSet[i] != null; i++ ) {
				if ( checkSet[i] && (checkSet[i] === true || checkSet[i].nodeType === 1 && contains(context, checkSet[i])) ) {
					results.push( set[i] );
				}
			}
		} else {
			for ( var i = 0; checkSet[i] != null; i++ ) {
				if ( checkSet[i] && checkSet[i].nodeType === 1 ) {
					results.push( set[i] );
				}
			}
		}
	} else {
		makeArray( checkSet, results );
	}

	if ( extra ) {
		Sizzle( extra, origContext, results, seed );
		Sizzle.uniqueSort( results );
	}

	return results;
};

Sizzle.uniqueSort = function(results){
	if ( sortOrder ) {
		hasDuplicate = baseHasDuplicate;
		results.sort(sortOrder);

		if ( hasDuplicate ) {
			for ( var i = 1; i < results.length; i++ ) {
				if ( results[i] === results[i-1] ) {
					results.splice(i--, 1);
				}
			}
		}
	}

	return results;
};

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

Sizzle.find = function(expr, context, isXML){
	var set, match;

	if ( !expr ) {
		return [];
	}

	for ( var i = 0, l = Expr.order.length; i < l; i++ ) {
		var type = Expr.order[i], match;

		if ( (match = Expr.leftMatch[ type ].exec( expr )) ) {
			var left = match[1];
			match.splice(1,1);

			if ( left.substr( left.length - 1 ) !== "\\" ) {
				match[1] = (match[1] || "").replace(/\\/g, "");
				set = Expr.find[ type ]( match, context, isXML );
				if ( set != null ) {
					expr = expr.replace( Expr.match[ type ], "" );
					break;
				}
			}
		}
	}

	if ( !set ) {
		set = context.getElementsByTagName("*");
	}

	return {set: set, expr: expr};
};

Sizzle.filter = function(expr, set, inplace, not){
	var old = expr, result = [], curLoop = set, match, anyFound,
		isXMLFilter = set && set[0] && isXML(set[0]);

	while ( expr && set.length ) {
		for ( var type in Expr.filter ) {
			if ( (match = Expr.match[ type ].exec( expr )) != null ) {
				var filter = Expr.filter[ type ], found, item;
				anyFound = false;

				if ( curLoop == result ) {
					result = [];
				}

				if ( Expr.preFilter[ type ] ) {
					match = Expr.preFilter[ type ]( match, curLoop, inplace, result, not, isXMLFilter );

					if ( !match ) {
						anyFound = found = true;
					} else if ( match === true ) {
						continue;
					}
				}

				if ( match ) {
					for ( var i = 0; (item = curLoop[i]) != null; i++ ) {
						if ( item ) {
							found = filter( item, match, i, curLoop );
							var pass = not ^ !!found;

							if ( inplace && found != null ) {
								if ( pass ) {
									anyFound = true;
								} else {
									curLoop[i] = false;
								}
							} else if ( pass ) {
								result.push( item );
								anyFound = true;
							}
						}
					}
				}

				if ( found !== undefined ) {
					if ( !inplace ) {
						curLoop = result;
					}

					expr = expr.replace( Expr.match[ type ], "" );

					if ( !anyFound ) {
						return [];
					}

					break;
				}
			}
		}

		if ( expr == old ) {
			if ( anyFound == null ) {
				throw "Syntax error, unrecognized expression: " + expr;
			} else {
				break;
			}
		}

		old = expr;
	}

	return curLoop;
};

var Expr = Sizzle.selectors = {
	order: [ "ID", "NAME", "TAG" ],
	match: {
		ID: /#((?:[\w\u00c0-\uFFFF-]|\\.)+)/,
		CLASS: /\.((?:[\w\u00c0-\uFFFF-]|\\.)+)/,
		NAME: /\[name=['"]*((?:[\w\u00c0-\uFFFF-]|\\.)+)['"]*\]/,
		ATTR: /\[\s*((?:[\w\u00c0-\uFFFF-]|\\.)+)\s*(?:(\S?=)\s*(['"]*)(.*?)\3|)\s*\]/,
		TAG: /^((?:[\w\u00c0-\uFFFF\*-]|\\.)+)/,
		CHILD: /:(only|nth|last|first)-child(?:\((even|odd|[\dn+-]*)\))?/,
		POS: /:(nth|eq|gt|lt|first|last|even|odd)(?:\((\d*)\))?(?=[^-]|$)/,
		PSEUDO: /:((?:[\w\u00c0-\uFFFF-]|\\.)+)(?:\((['"]*)((?:\([^\)]+\)|[^\2\(\)]*)+)\2\))?/
	},
	leftMatch: {},
	attrMap: {
		"class": "className",
		"for": "htmlFor"
	},
	attrHandle: {
		href: function(elem){
			return elem.getAttribute("href");
		}
	},
	relative: {
		"+": function(checkSet, part, isXML){
			var isPartStr = typeof part === "string",
				isTag = isPartStr && !/\W/.test(part),
				isPartStrNotTag = isPartStr && !isTag;

			if ( isTag && !isXML ) {
				part = part.toUpperCase();
			}

			for ( var i = 0, l = checkSet.length, elem; i < l; i++ ) {
				if ( (elem = checkSet[i]) ) {
					while ( (elem = elem.previousSibling) && elem.nodeType !== 1 ) {}

					checkSet[i] = isPartStrNotTag || elem && elem.nodeName === part ?
						elem || false :
						elem === part;
				}
			}

			if ( isPartStrNotTag ) {
				Sizzle.filter( part, checkSet, true );
			}
		},
		">": function(checkSet, part, isXML){
			var isPartStr = typeof part === "string";

			if ( isPartStr && !/\W/.test(part) ) {
				part = isXML ? part : part.toUpperCase();

				for ( var i = 0, l = checkSet.length; i < l; i++ ) {
					var elem = checkSet[i];
					if ( elem ) {
						var parent = elem.parentNode;
						checkSet[i] = parent.nodeName === part ? parent : false;
					}
				}
			} else {
				for ( var i = 0, l = checkSet.length; i < l; i++ ) {
					var elem = checkSet[i];
					if ( elem ) {
						checkSet[i] = isPartStr ?
							elem.parentNode :
							elem.parentNode === part;
					}
				}

				if ( isPartStr ) {
					Sizzle.filter( part, checkSet, true );
				}
			}
		},
		"": function(checkSet, part, isXML){
			var doneName = done++, checkFn = dirCheck;

			if ( !/\W/.test(part) ) {
				var nodeCheck = part = isXML ? part : part.toUpperCase();
				checkFn = dirNodeCheck;
			}

			checkFn("parentNode", part, doneName, checkSet, nodeCheck, isXML);
		},
		"~": function(checkSet, part, isXML){
			var doneName = done++, checkFn = dirCheck;

			if ( typeof part === "string" && !/\W/.test(part) ) {
				var nodeCheck = part = isXML ? part : part.toUpperCase();
				checkFn = dirNodeCheck;
			}

			checkFn("previousSibling", part, doneName, checkSet, nodeCheck, isXML);
		}
	},
	find: {
		ID: function(match, context, isXML){
			if ( typeof context.getElementById !== "undefined" && !isXML ) {
				var m = context.getElementById(match[1]);
				return m ? [m] : [];
			}
		},
		NAME: function(match, context, isXML){
			if ( typeof context.getElementsByName !== "undefined" ) {
				var ret = [], results = context.getElementsByName(match[1]);

				for ( var i = 0, l = results.length; i < l; i++ ) {
					if ( results[i].getAttribute("name") === match[1] ) {
						ret.push( results[i] );
					}
				}

				return ret.length === 0 ? null : ret;
			}
		},
		TAG: function(match, context){
			return context.getElementsByTagName(match[1]);
		}
	},
	preFilter: {
		CLASS: function(match, curLoop, inplace, result, not, isXML){
			match = " " + match[1].replace(/\\/g, "") + " ";

			if ( isXML ) {
				return match;
			}

			for ( var i = 0, elem; (elem = curLoop[i]) != null; i++ ) {
				if ( elem ) {
					if ( not ^ (elem.className && (" " + elem.className + " ").indexOf(match) >= 0) ) {
						if ( !inplace )
							result.push( elem );
					} else if ( inplace ) {
						curLoop[i] = false;
					}
				}
			}

			return false;
		},
		ID: function(match){
			return match[1].replace(/\\/g, "");
		},
		TAG: function(match, curLoop){
			for ( var i = 0; curLoop[i] === false; i++ ){}
			return curLoop[i] && isXML(curLoop[i]) ? match[1] : match[1].toUpperCase();
		},
		CHILD: function(match){
			if ( match[1] == "nth" ) {
				var test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec(
					match[2] == "even" && "2n" || match[2] == "odd" && "2n+1" ||
					!/\D/.test( match[2] ) && "0n+" + match[2] || match[2]);

				match[2] = (test[1] + (test[2] || 1)) - 0;
				match[3] = test[3] - 0;
			}

			match[0] = done++;

			return match;
		},
		ATTR: function(match, curLoop, inplace, result, not, isXML){
			var name = match[1].replace(/\\/g, "");

			if ( !isXML && Expr.attrMap[name] ) {
				match[1] = Expr.attrMap[name];
			}

			if ( match[2] === "~=" ) {
				match[4] = " " + match[4] + " ";
			}

			return match;
		},
		PSEUDO: function(match, curLoop, inplace, result, not){
			if ( match[1] === "not" ) {
				if ( ( chunker.exec(match[3]) || "" ).length > 1 || /^\w/.test(match[3]) ) {
					match[3] = Sizzle(match[3], null, null, curLoop);
				} else {
					var ret = Sizzle.filter(match[3], curLoop, inplace, true ^ not);
					if ( !inplace ) {
						result.push.apply( result, ret );
					}
					return false;
				}
			} else if ( Expr.match.POS.test( match[0] ) || Expr.match.CHILD.test( match[0] ) ) {
				return true;
			}

			return match;
		},
		POS: function(match){
			match.unshift( true );
			return match;
		}
	},
	filters: {
		enabled: function(elem){
			return elem.disabled === false && elem.type !== "hidden";
		},
		disabled: function(elem){
			return elem.disabled === true;
		},
		checked: function(elem){
			return elem.checked === true;
		},
		selected: function(elem){
			elem.parentNode.selectedIndex;
			return elem.selected === true;
		},
		parent: function(elem){
			return !!elem.firstChild;
		},
		empty: function(elem){
			return !elem.firstChild;
		},
		has: function(elem, i, match){
			return !!Sizzle( match[3], elem ).length;
		},
		header: function(elem){
			return /h\d/i.test( elem.nodeName );
		},
		text: function(elem){
			return "text" === elem.type;
		},
		radio: function(elem){
			return "radio" === elem.type;
		},
		checkbox: function(elem){
			return "checkbox" === elem.type;
		},
		file: function(elem){
			return "file" === elem.type;
		},
		password: function(elem){
			return "password" === elem.type;
		},
		submit: function(elem){
			return "submit" === elem.type;
		},
		image: function(elem){
			return "image" === elem.type;
		},
		reset: function(elem){
			return "reset" === elem.type;
		},
		button: function(elem){
			return "button" === elem.type || elem.nodeName.toUpperCase() === "BUTTON";
		},
		input: function(elem){
			return /input|select|textarea|button/i.test(elem.nodeName);
		}
	},
	setFilters: {
		first: function(elem, i){
			return i === 0;
		},
		last: function(elem, i, match, array){
			return i === array.length - 1;
		},
		even: function(elem, i){
			return i % 2 === 0;
		},
		odd: function(elem, i){
			return i % 2 === 1;
		},
		lt: function(elem, i, match){
			return i < match[3] - 0;
		},
		gt: function(elem, i, match){
			return i > match[3] - 0;
		},
		nth: function(elem, i, match){
			return match[3] - 0 == i;
		},
		eq: function(elem, i, match){
			return match[3] - 0 == i;
		}
	},
	filter: {
		PSEUDO: function(elem, match, i, array){
			var name = match[1], filter = Expr.filters[ name ];

			if ( filter ) {
				return filter( elem, i, match, array );
			} else if ( name === "contains" ) {
				return (elem.textContent || elem.innerText || "").indexOf(match[3]) >= 0;
			} else if ( name === "not" ) {
				var not = match[3];

				for ( var i = 0, l = not.length; i < l; i++ ) {
					if ( not[i] === elem ) {
						return false;
					}
				}

				return true;
			}
		},
		CHILD: function(elem, match){
			var type = match[1], node = elem;
			switch (type) {
				case 'only':
				case 'first':
					while ( (node = node.previousSibling) )  {
						if ( node.nodeType === 1 ) return false;
					}
					if ( type == 'first') return true;
					node = elem;
				case 'last':
					while ( (node = node.nextSibling) )  {
						if ( node.nodeType === 1 ) return false;
					}
					return true;
				case 'nth':
					var first = match[2], last = match[3];

					if ( first == 1 && last == 0 ) {
						return true;
					}

					var doneName = match[0],
						parent = elem.parentNode;

					if ( parent && (parent.sizcache !== doneName || !elem.nodeIndex) ) {
						var count = 0;
						for ( node = parent.firstChild; node; node = node.nextSibling ) {
							if ( node.nodeType === 1 ) {
								node.nodeIndex = ++count;
							}
						}
						parent.sizcache = doneName;
					}

					var diff = elem.nodeIndex - last;
					if ( first == 0 ) {
						return diff == 0;
					} else {
						return ( diff % first == 0 && diff / first >= 0 );
					}
			}
		},
		ID: function(elem, match){
			return elem.nodeType === 1 && elem.getAttribute("id") === match;
		},
		TAG: function(elem, match){
			return (match === "*" && elem.nodeType === 1) || elem.nodeName === match;
		},
		CLASS: function(elem, match){
			return (" " + (elem.className || elem.getAttribute("class")) + " ")
				.indexOf( match ) > -1;
		},
		ATTR: function(elem, match){
			var name = match[1],
				result = Expr.attrHandle[ name ] ?
					Expr.attrHandle[ name ]( elem ) :
					elem[ name ] != null ?
						elem[ name ] :
						elem.getAttribute( name ),
				value = result + "",
				type = match[2],
				check = match[4];

			return result == null ?
				type === "!=" :
				type === "=" ?
				value === check :
				type === "*=" ?
				value.indexOf(check) >= 0 :
				type === "~=" ?
				(" " + value + " ").indexOf(check) >= 0 :
				!check ?
				value && result !== false :
				type === "!=" ?
				value != check :
				type === "^=" ?
				value.indexOf(check) === 0 :
				type === "$=" ?
				value.substr(value.length - check.length) === check :
				type === "|=" ?
				value === check || value.substr(0, check.length + 1) === check + "-" :
				false;
		},
		POS: function(elem, match, i, array){
			var name = match[2], filter = Expr.setFilters[ name ];

			if ( filter ) {
				return filter( elem, i, match, array );
			}
		}
	}
};

var origPOS = Expr.match.POS;

for ( var type in Expr.match ) {
	Expr.match[ type ] = new RegExp( Expr.match[ type ].source + /(?![^\[]*\])(?![^\(]*\))/.source );
	Expr.leftMatch[ type ] = new RegExp( /(^(?:.|\r|\n)*?)/.source + Expr.match[ type ].source );
}

var makeArray = function(array, results) {
	array = Array.prototype.slice.call( array, 0 );

	if ( results ) {
		results.push.apply( results, array );
		return results;
	}

	return array;
};

try {
	Array.prototype.slice.call( document.documentElement.childNodes, 0 );

} catch(e){
	makeArray = function(array, results) {
		var ret = results || [];

		if ( toString.call(array) === "[object Array]" ) {
			Array.prototype.push.apply( ret, array );
		} else {
			if ( typeof array.length === "number" ) {
				for ( var i = 0, l = array.length; i < l; i++ ) {
					ret.push( array[i] );
				}
			} else {
				for ( var i = 0; array[i]; i++ ) {
					ret.push( array[i] );
				}
			}
		}

		return ret;
	};
}

var sortOrder;

if ( document.documentElement.compareDocumentPosition ) {
	sortOrder = function( a, b ) {
		if ( !a.compareDocumentPosition || !b.compareDocumentPosition ) {
			if ( a == b ) {
				hasDuplicate = true;
			}
			return 0;
		}

		var ret = a.compareDocumentPosition(b) & 4 ? -1 : a === b ? 0 : 1;
		if ( ret === 0 ) {
			hasDuplicate = true;
		}
		return ret;
	};
} else if ( "sourceIndex" in document.documentElement ) {
	sortOrder = function( a, b ) {
		if ( !a.sourceIndex || !b.sourceIndex ) {
			if ( a == b ) {
				hasDuplicate = true;
			}
			return 0;
		}

		var ret = a.sourceIndex - b.sourceIndex;
		if ( ret === 0 ) {
			hasDuplicate = true;
		}
		return ret;
	};
} else if ( document.createRange ) {
	sortOrder = function( a, b ) {
		if ( !a.ownerDocument || !b.ownerDocument ) {
			if ( a == b ) {
				hasDuplicate = true;
			}
			return 0;
		}

		var aRange = a.ownerDocument.createRange(), bRange = b.ownerDocument.createRange();
		aRange.setStart(a, 0);
		aRange.setEnd(a, 0);
		bRange.setStart(b, 0);
		bRange.setEnd(b, 0);
		var ret = aRange.compareBoundaryPoints(Range.START_TO_END, bRange);
		if ( ret === 0 ) {
			hasDuplicate = true;
		}
		return ret;
	};
}

(function(){
	var form = document.createElement("div"),
		id = "script" + (new Date).getTime();
	form.innerHTML = "<a name='" + id + "'/>";

	var root = document.documentElement;
	root.insertBefore( form, root.firstChild );

	if ( !!document.getElementById( id ) ) {
		Expr.find.ID = function(match, context, isXML){
			if ( typeof context.getElementById !== "undefined" && !isXML ) {
				var m = context.getElementById(match[1]);
				return m ? m.id === match[1] || typeof m.getAttributeNode !== "undefined" && m.getAttributeNode("id").nodeValue === match[1] ? [m] : undefined : [];
			}
		};

		Expr.filter.ID = function(elem, match){
			var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id");
			return elem.nodeType === 1 && node && node.nodeValue === match;
		};
	}

	root.removeChild( form );
	root = form = null; // release memory in IE
})();

(function(){

	var div = document.createElement("div");
	div.appendChild( document.createComment("") );

	if ( div.getElementsByTagName("*").length > 0 ) {
		Expr.find.TAG = function(match, context){
			var results = context.getElementsByTagName(match[1]);

			if ( match[1] === "*" ) {
				var tmp = [];

				for ( var i = 0; results[i]; i++ ) {
					if ( results[i].nodeType === 1 ) {
						tmp.push( results[i] );
					}
				}

				results = tmp;
			}

			return results;
		};
	}

	div.innerHTML = "<a href='#'></a>";
	if ( div.firstChild && typeof div.firstChild.getAttribute !== "undefined" &&
			div.firstChild.getAttribute("href") !== "#" ) {
		Expr.attrHandle.href = function(elem){
			return elem.getAttribute("href", 2);
		};
	}

	div = null; // release memory in IE
})();

if ( document.querySelectorAll ) (function(){
	var oldSizzle = Sizzle, div = document.createElement("div");
	div.innerHTML = "<p class='TEST'></p>";

	if ( div.querySelectorAll && div.querySelectorAll(".TEST").length === 0 ) {
		return;
	}

	Sizzle = function(query, context, extra, seed){
		context = context || document;

		if ( !seed && context.nodeType === 9 && !isXML(context) ) {
			try {
				return makeArray( context.querySelectorAll(query), extra );
			} catch(e){}
		}

		return oldSizzle(query, context, extra, seed);
	};

	for ( var prop in oldSizzle ) {
		Sizzle[ prop ] = oldSizzle[ prop ];
	}

	div = null; // release memory in IE
})();

if ( document.getElementsByClassName && document.documentElement.getElementsByClassName ) (function(){
	var div = document.createElement("div");
	div.innerHTML = "<div class='test e'></div><div class='test'></div>";

	if ( div.getElementsByClassName("e").length === 0 )
		return;

	div.lastChild.className = "e";

	if ( div.getElementsByClassName("e").length === 1 )
		return;

	Expr.order.splice(1, 0, "CLASS");
	Expr.find.CLASS = function(match, context, isXML) {
		if ( typeof context.getElementsByClassName !== "undefined" && !isXML ) {
			return context.getElementsByClassName(match[1]);
		}
	};

	div = null; // release memory in IE
})();

function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
	var sibDir = dir == "previousSibling" && !isXML;
	for ( var i = 0, l = checkSet.length; i < l; i++ ) {
		var elem = checkSet[i];
		if ( elem ) {
			if ( sibDir && elem.nodeType === 1 ){
				elem.sizcache = doneName;
				elem.sizset = i;
			}
			elem = elem[dir];
			var match = false;

			while ( elem ) {
				if ( elem.sizcache === doneName ) {
					match = checkSet[elem.sizset];
					break;
				}

				if ( elem.nodeType === 1 && !isXML ){
					elem.sizcache = doneName;
					elem.sizset = i;
				}

				if ( elem.nodeName === cur ) {
					match = elem;
					break;
				}

				elem = elem[dir];
			}

			checkSet[i] = match;
		}
	}
}

function dirCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
	var sibDir = dir == "previousSibling" && !isXML;
	for ( var i = 0, l = checkSet.length; i < l; i++ ) {
		var elem = checkSet[i];
		if ( elem ) {
			if ( sibDir && elem.nodeType === 1 ) {
				elem.sizcache = doneName;
				elem.sizset = i;
			}
			elem = elem[dir];
			var match = false;

			while ( elem ) {
				if ( elem.sizcache === doneName ) {
					match = checkSet[elem.sizset];
					break;
				}

				if ( elem.nodeType === 1 ) {
					if ( !isXML ) {
						elem.sizcache = doneName;
						elem.sizset = i;
					}
					if ( typeof cur !== "string" ) {
						if ( elem === cur ) {
							match = true;
							break;
						}

					} else if ( Sizzle.filter( cur, [elem] ).length > 0 ) {
						match = elem;
						break;
					}
				}

				elem = elem[dir];
			}

			checkSet[i] = match;
		}
	}
}

var contains = document.compareDocumentPosition ?  function(a, b){
	return a.compareDocumentPosition(b) & 16;
} : function(a, b){
	return a !== b && (a.contains ? a.contains(b) : true);
};

var isXML = function(elem){
	return elem.nodeType === 9 && elem.documentElement.nodeName !== "HTML" ||
		!!elem.ownerDocument && elem.ownerDocument.documentElement.nodeName !== "HTML";
};

var posProcess = function(selector, context){
	var tmpSet = [], later = "", match,
		root = context.nodeType ? [context] : context;

	while ( (match = Expr.match.PSEUDO.exec( selector )) ) {
		later += match[0];
		selector = selector.replace( Expr.match.PSEUDO, "" );
	}

	selector = Expr.relative[selector] ? selector + "*" : selector;

	for ( var i = 0, l = root.length; i < l; i++ ) {
		Sizzle( selector, root[i], tmpSet );
	}

	return Sizzle.filter( later, tmpSet );
};


window.Sizzle = Sizzle;

})();

;(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].push(value);
       } else result[key] = value;
       return result;
     };
   } else {
     initial = '';
     accumulator = function(result, key, value) {
       return result + (result ? '&' : '') + encodeURIComponent(key) + '=' + encodeURIComponent(value);
     }
   }

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

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

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

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

   return matchingInputs;
 },

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

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

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

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

 focusFirstElement: function(form) {
   form = $(form);
   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() {

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

   cache: {}
 };

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



 var 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) {
   event = Event.extend(event);

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

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

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

   return Element.extend(node);
 }

 function findElement(event, expression) {
   var element = Event.element(event);

   if (!expression) return element;
   while (element) {
     if (Object.isElement(element) && Prototype.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);
 }

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

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

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

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

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

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

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

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

           if (parent === element) return;

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

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

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

 var CACHE = [];

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

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


 var _getDOMEventName = Prototype.K,
     translations = { mouseenter: "mouseover", mouseleave: "mouseout" };

 if (!MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED) {
   _getDOMEventName = function(eventName) {
     return (translations[eventName] || eventName);
   };
 }

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

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

   if (!responder) return element;

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

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

   return element;
 }

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

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

   if (!eventName) {
     registry.each( function(pair) {
       var eventName = pair.key;
       stopObserving(element, eventName);
     });
     return element;
   }

   var responders = registry.get(eventName);
   if (!responders) return element;

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

   var i = responders.length, responder;
   while (i--) {
     if (responders[i].handler === handler) {
       responder = responders[i];
       break;
     }
   }
   if (!responder) return element;

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

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

   return element;
 }

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

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

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

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

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

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

   return Event.extend(event);
 }

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

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

 var timer;

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

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

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

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

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

Element.addMethods();

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

Hash.toQueryString = Object.toQueryString;

var Toggle = { display: Element.toggle };

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

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

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

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

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

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

var Position = {
 includeScrollOffsets: false,

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

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

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

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

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

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

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


 cumulativeOffset: Element.Methods.cumulativeOffset,

 positionedOffset: Element.Methods.positionedOffset,

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

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

 realOffset: Element.Methods.cumulativeScrollOffset,

 offsetParent: Element.Methods.getOffsetParent,

 page: Element.Methods.viewportOffset,

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

(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);
   }
 });
})();