Vergleich jscripts/prototype.js - 1.6.0 - 1.6.11

var Prototype={Version:'1.6.1',Browser:(function(){var ua=navigator.userAgent;var isOpera=Object.prototype.toString.call(window.opera)=='[object Opera]';return{IE:!!window.attachEvent&&!isOpera,Opera:isOpera,WebKit:ua.indexOf('AppleWebKit/')>-1,Gecko:ua.indexOf('Gecko')>-1&&ua.indexOf('KHTML')===-1,MobileSafari:/Apple.*Mobile.*Safari/.test(ua)}})(),BrowserFeatures:{XPath:!!document.evaluate,SelectorsAPI:!!document.querySelector,ElementExtensions:(function(){var constructor=window.Element||window.HTMLElement;return!!(constructor&&constructor.prototype);})(),SpecificElementExtensions:(function(){if(typeof window.HTMLDivElement!=='undefined')
return true;var div=document.createElement('div');var form=document.createElement('form');var isSupported=false;if(div['__proto__']&&(div['__proto__']!==form['__proto__'])){isSupported=true;}
div=form=null;return isSupported;})()},ScriptFragment:'<script[^>]*>([\\S\\s]*?)<\/script>',JSONFilter:/^\/\*-secure-([\s\S]*)\*\/\s*$/,emptyFunction:function(){},K:function(x){return x}};if(Prototype.Browser.MobileSafari)
Prototype.BrowserFeatures.SpecificElementExtensions=false;var Abstract={};var Try={these:function(){var returnValue;for(var i=0,length=arguments.length;i<length;i++){var lambda=arguments[i];try{returnValue=lambda();break;}catch(e){}}
return returnValue;}};var Class=(function(){function subclass(){};function create(){var parent=null,properties=$A(arguments);if(Object.isFunction(properties[0]))
parent=properties.shift();function klass(){this.initialize.apply(this,arguments);}
Object.extend(klass,Class.Methods);klass.superclass=parent;klass.subclasses=[];if(parent){subclass.prototype=parent.prototype;klass.prototype=new subclass;parent.subclasses.push(klass);}
for(var i=0;i<properties.length;i++)
klass.addMethods(properties[i]);if(!klass.prototype.initialize)
klass.prototype.initialize=Prototype.emptyFunction;klass.prototype.constructor=klass;return klass;}
function addMethods(source){var ancestor=this.superclass&&this.superclass.prototype;var properties=Object.keys(source);if(!Object.keys({toString:true}).length){if(source.toString!=Object.prototype.toString)
properties.push("toString");if(source.valueOf!=Object.prototype.valueOf)
properties.push("valueOf");}
for(var i=0,length=properties.length;i<length;i++){var property=properties[i],value=source[property];if(ancestor&&Object.isFunction(value)&&value.argumentNames().first()=="$super"){var method=value;value=(function(m){return function(){return ancestor[m].apply(this,arguments);};})(property).wrap(method);value.valueOf=method.valueOf.bind(method);value.toString=method.toString.bind(method);}
this.prototype[property]=value;}
return this;}
return{create:create,Methods:{addMethods:addMethods}};})();(function(){var _toString=Object.prototype.toString;function extend(destination,source){for(var property in source)
destination[property]=source[property];return destination;}
function inspect(object){try{if(isUndefined(object))return'undefined';if(object===null)return'null';return object.inspect?object.inspect():String(object);}catch(e){if(e instanceof RangeError)return'...';throw e;}}
function toJSON(object){var type=typeof object;switch(type){case'undefined':case'function':case'unknown':return;case'boolean':return object.toString();}
if(object===null)return'null';if(object.toJSON)return object.toJSON();if(isElement(object))return;var results=[];for(var property in object){var value=toJSON(object[property]);if(!isUndefined(value))
results.push(property.toJSON()+': '+value);}
return'{'+results.join(', ')+'}';}
function toQueryString(object){return $H(object).toQueryString();}
function toHTML(object){return object&&object.toHTML?object.toHTML():String.interpret(object);}
function keys(object){var results=[];for(var property in object)
results.push(property);return results;}
function values(object){var results=[];for(var property in object)
results.push(object[property]);return results;}
function clone(object){return extend({},object);}
function isElement(object){return!!(object&&object.nodeType==1);}
function isArray(object){return _toString.call(object)=="[object Array]";}
function isHash(object){return object instanceof Hash;}
function isFunction(object){return typeof object==="function";}
function isString(object){return _toString.call(object)=="[object String]";}
function isNumber(object){return _toString.call(object)=="[object Number]";}
function isUndefined(object){return typeof object==="undefined";}
extend(Object,{extend:extend,inspect:inspect,toJSON:toJSON,toQueryString:toQueryString,toHTML:toHTML,keys:keys,values:values,clone:clone,isElement:isElement,isArray:isArray,isHash:isHash,isFunction:isFunction,isString:isString,isNumber:isNumber,isUndefined:isUndefined});})();Object.extend(Function.prototype,(function(){var slice=Array.prototype.slice;function update(array,args){var arrayLength=array.length,length=args.length;while(length--)array[arrayLength+length]=args[length];return array;}
function merge(array,args){array=slice.call(array,0);return update(array,args);}
function argumentNames(){var names=this.toString().match(/^[\s\(]*function[^(]*\(([^)]*)\)/)[1].replace(/\/\/.*?[\r\n]|\/\*(?:.|[\r\n])*?\*\//g,'').replace(/\s+/g,'').split(',');return names.length==1&&!names[0]?[]:names;}
function bind(context){if(arguments.length<2&&Object.isUndefined(arguments[0]))return this;var __method=this,args=slice.call(arguments,1);return function(){var a=merge(args,arguments);return __method.apply(context,a);}}
function bindAsEventListener(context){var __method=this,args=slice.call(arguments,1);return function(event){var a=update([event||window.event],args);return __method.apply(context,a);}}
function curry(){if(!arguments.length)return this;var __method=this,args=slice.call(arguments,0);return function(){var a=merge(args,arguments);return __method.apply(this,a);}}
function delay(timeout){var __method=this,args=slice.call(arguments,1);timeout=timeout*1000
return window.setTimeout(function(){return __method.apply(__method,args);},timeout);}
function defer(){var args=update([0.01],arguments);return this.delay.apply(this,args);}
function wrap(wrapper){var __method=this;return function(){var a=update([__method.bind(this)],arguments);return wrapper.apply(this,a);}}
function methodize(){if(this._methodized)return this._methodized;var __method=this;return this._methodized=function(){var a=update([this],arguments);return __method.apply(null,a);};}
return{argumentNames:argumentNames,bind:bind,bindAsEventListener:bindAsEventListener,curry:curry,delay:delay,defer:defer,wrap:wrap,methodize:methodize}})());Date.prototype.toJSON=function(){return'"'+this.getUTCFullYear()+'-'+
(this.getUTCMonth()+1).toPaddedString(2)+'-'+
this.getUTCDate().toPaddedString(2)+'T'+
this.getUTCHours().toPaddedString(2)+':'+
this.getUTCMinutes().toPaddedString(2)+':'+
this.getUTCSeconds().toPaddedString(2)+'Z"';};RegExp.prototype.match=RegExp.prototype.test;RegExp.escape=function(str){return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g,'\\$1');};var PeriodicalExecuter=Class.create({initialize:function(callback,frequency){this.callback=callback;this.frequency=frequency;this.currentlyExecuting=false;this.registerCallback();},registerCallback:function(){this.timer=setInterval(this.onTimerEvent.bind(this),this.frequency*1000);},execute:function(){this.callback(this);},stop:function(){if(!this.timer)return;clearInterval(this.timer);this.timer=null;},onTimerEvent:function(){if(!this.currentlyExecuting){try{this.currentlyExecuting=true;this.execute();this.currentlyExecuting=false;}catch(e){this.currentlyExecuting=false;throw e;}}}});Object.extend(String,{interpret:function(value){return value==null?'':String(value);},specialChar:{'\b':'\\b','\t':'\\t','\n':'\\n','\f':'\\f','\r':'\\r','\\':'\\\\'}});Object.extend(String.prototype,(function(){function prepareReplacement(replacement){if(Object.isFunction(replacement))return replacement;var template=new Template(replacement);return function(match){return template.evaluate(match)};}
function gsub(pattern,replacement){var result='',source=this,match;replacement=prepareReplacement(replacement);if(Object.isString(pattern))
pattern=RegExp.escape(pattern);if(!(pattern.length||pattern.source)){replacement=replacement('');return replacement+source.split('').join(replacement)+replacement;}
while(source.length>0){if(match=source.match(pattern)){result+=source.slice(0,match.index);result+=String.interpret(replacement(match));source=source.slice(match.index+match[0].length);}else{result+=source,source='';}}
return result;}
function sub(pattern,replacement,count){replacement=prepareReplacement(replacement);count=Object.isUndefined(count)?1:count;return this.gsub(pattern,function(match){if(--count<0)return match[0];return replacement(match);});}
function scan(pattern,iterator){this.gsub(pattern,iterator);return String(this);}
function truncate(length,truncation){length=length||30;truncation=Object.isUndefined(truncation)?'...':truncation;return this.length>length?this.slice(0,length-truncation.length)+truncation:String(this);}
function strip(){return this.replace(/^\s+/,'').replace(/\s+$/,'');}
function stripTags(){return this.replace(/<\w+(\s+("[^"]*"|'[^']*'|[^>])+)?>|<\/\w+>/gi,'');}
function stripScripts(){return this.replace(new RegExp(Prototype.ScriptFragment,'img'),'');}
function extractScripts(){var matchAll=new RegExp(Prototype.ScriptFragment,'img');var matchOne=new RegExp(Prototype.ScriptFragment,'im');return(this.match(matchAll)||[]).map(function(scriptTag){return(scriptTag.match(matchOne)||['',''])[1];});}
function evalScripts(){return this.extractScripts().map(function(script){return eval(script)});}
function escapeHTML(){return this.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');}
function unescapeHTML(){return this.stripTags().replace(/&lt;/g,'<').replace(/&gt;/g,'>').replace(/&amp;/g,'&');}
function toQueryParams(separator){var match=this.strip().match(/([^?#]*)(#.*)?$/);if(!match)return{};return match[1].split(separator||'&').inject({},function(hash,pair){if((pair=pair.split('='))[0]){var key=decodeURIComponent(pair.shift());var value=pair.length>1?pair.join('='):pair[0];if(value!=undefined)value=decodeURIComponent(value);if(key in hash){if(!Object.isArray(hash[key]))hash[key]=[hash[key]];hash[key].push(value);}
else hash[key]=value;}
return hash;});}
function toArray(){return this.split('');}
function succ(){return this.slice(0,this.length-1)+
String.fromCharCode(this.charCodeAt(this.length-1)+1);}
function times(count){return count<1?'':new Array(count+1).join(this);}
function camelize(){var parts=this.split('-'),len=parts.length;if(len==1)return parts[0];var camelized=this.charAt(0)=='-'?parts[0].charAt(0).toUpperCase()+parts[0].substring(1):parts[0];for(var i=1;i<len;i++)
camelized+=parts[i].charAt(0).toUpperCase()+parts[i].substring(1);return camelized;}
function capitalize(){return this.charAt(0).toUpperCase()+this.substring(1).toLowerCase();}
function underscore(){return this.replace(/::/g,'/').replace(/([A-Z]+)([A-Z][a-z])/g,'$1_$2').replace(/([a-z\d])([A-Z])/g,'$1_$2').replace(/-/g,'_').toLowerCase();}
function dasherize(){return this.replace(/_/g,'-');}
function inspect(useDoubleQuotes){var escapedString=this.replace(/[\x00-\x1f\\]/g,function(character){if(character in String.specialChar){return String.specialChar[character];}
return'\\u00'+character.charCodeAt().toPaddedString(2,16);});if(useDoubleQuotes)return'"'+escapedString.replace(/"/g,'\\"')+'"';return"'"+escapedString.replace(/'/g,'\\\'')+"'";}
function toJSON(){return this.inspect(true);}
function unfilterJSON(filter){return this.replace(filter||Prototype.JSONFilter,'$1');}
function isJSON(){var str=this;if(str.blank())return false;str=this.replace(/\\./g,'@').replace(/"[^"\\\n\r]*"/g,'');return(/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);}
function evalJSON(sanitize){var json=this.unfilterJSON();try{if(!sanitize||json.isJSON())return eval('('+json+')');}catch(e){}
throw new SyntaxError('Badly formed JSON string: '+this.inspect());}
function include(pattern){return this.indexOf(pattern)>-1;}
function startsWith(pattern){return this.indexOf(pattern)===0;}
function endsWith(pattern){var d=this.length-pattern.length;return d>=0&&this.lastIndexOf(pattern)===d;}
function empty(){return this=='';}
function blank(){return/^\s*$/.test(this);}
function interpolate(object,pattern){return new Template(this,pattern).evaluate(object);}
return{gsub:gsub,sub:sub,scan:scan,truncate:truncate,strip:String.prototype.trim?String.prototype.trim:strip,stripTags:stripTags,stripScripts:stripScripts,extractScripts:extractScripts,evalScripts:evalScripts,escapeHTML:escapeHTML,unescapeHTML:unescapeHTML,toQueryParams:toQueryParams,parseQuery:toQueryParams,toArray:toArray,succ:succ,times:times,camelize:camelize,capitalize:capitalize,underscore:underscore,dasherize:dasherize,inspect:inspect,toJSON:toJSON,unfilterJSON:unfilterJSON,isJSON:isJSON,evalJSON:evalJSON,include:include,startsWith:startsWith,endsWith:endsWith,empty:empty,blank:blank,interpolate:interpolate};})());var Template=Class.create({initialize:function(template,pattern){this.template=template.toString();this.pattern=pattern||Template.Pattern;},evaluate:function(object){if(object&&Object.isFunction(object.toTemplateReplacements))
object=object.toTemplateReplacements();return this.template.gsub(this.pattern,function(match){if(object==null)return(match[1]+'');var before=match[1]||'';if(before=='\\')return match[2];var ctx=object,expr=match[3];var pattern=/^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;match=pattern.exec(expr);if(match==null)return before;while(match!=null){var comp=match[1].startsWith('[')?match[2].replace(/\\\\]/g,']'):match[1];ctx=ctx[comp];if(null==ctx||''==match[3])break;expr=expr.substring('['==match[3]?match[1].length:match[0].length);match=pattern.exec(expr);}
return before+String.interpret(ctx);});}});Template.Pattern=/(^|.|\r|\n)(#\{(.*?)\})/;var $break={};var Enumerable=(function(){function each(iterator,context){var index=0;try{this._each(function(value){iterator.call(context,value,index++);});}catch(e){if(e!=$break)throw e;}
return this;}
function eachSlice(number,iterator,context){var index=-number,slices=[],array=this.toArray();if(number<1)return array;while((index+=number)<array.length)
slices.push(array.slice(index,index+number));return slices.collect(iterator,context);}
function all(iterator,context){iterator=iterator||Prototype.K;var result=true;this.each(function(value,index){result=result&&!!iterator.call(context,value,index);if(!result)throw $break;});return result;}
function any(iterator,context){iterator=iterator||Prototype.K;var result=false;this.each(function(value,index){if(result=!!iterator.call(context,value,index))
throw $break;});return result;}
function collect(iterator,context){iterator=iterator||Prototype.K;var results=[];this.each(function(value,index){results.push(iterator.call(context,value,index));});return results;}
function detect(iterator,context){var result;this.each(function(value,index){if(iterator.call(context,value,index)){result=value;throw $break;}});return result;}
function findAll(iterator,context){var results=[];this.each(function(value,index){if(iterator.call(context,value,index))
results.push(value);});return results;}
function grep(filter,iterator,context){iterator=iterator||Prototype.K;var results=[];if(Object.isString(filter))
filter=new RegExp(RegExp.escape(filter));this.each(function(value,index){if(filter.match(value))
results.push(iterator.call(context,value,index));});return results;}
function include(object){if(Object.isFunction(this.indexOf))
if(this.indexOf(object)!=-1)return true;var found=false;this.each(function(value){if(value==object){found=true;throw $break;}});return found;}
function inGroupsOf(number,fillWith){fillWith=Object.isUndefined(fillWith)?null:fillWith;return this.eachSlice(number,function(slice){while(slice.length<number)slice.push(fillWith);return slice;});}
function inject(memo,iterator,context){this.each(function(value,index){memo=iterator.call(context,memo,value,index);});return memo;}
function invoke(method){var args=$A(arguments).slice(1);return this.map(function(value){return value[method].apply(value,args);});}
function max(iterator,context){iterator=iterator||Prototype.K;var result;this.each(function(value,index){value=iterator.call(context,value,index);if(result==null||value>=result)
result=value;});return result;}
function min(iterator,context){iterator=iterator||Prototype.K;var result;this.each(function(value,index){value=iterator.call(context,value,index);if(result==null||value<result)
result=value;});return result;}
function partition(iterator,context){iterator=iterator||Prototype.K;var trues=[],falses=[];this.each(function(value,index){(iterator.call(context,value,index)?trues:falses).push(value);});return[trues,falses];}
function pluck(property){var results=[];this.each(function(value){results.push(value[property]);});return results;}
function reject(iterator,context){var results=[];this.each(function(value,index){if(!iterator.call(context,value,index))
results.push(value);});return results;}
function sortBy(iterator,context){return this.map(function(value,index){return{value:value,criteria:iterator.call(context,value,index)};}).sort(function(left,right){var a=left.criteria,b=right.criteria;return a<b?-1:a>b?1:0;}).pluck('value');}
function toArray(){return this.map();}
function zip(){var iterator=Prototype.K,args=$A(arguments);if(Object.isFunction(args.last()))
iterator=args.pop();var collections=[this].concat(args).map($A);return this.map(function(value,index){return iterator(collections.pluck(index));});}
function size(){return this.toArray().length;}
function inspect(){return'#<Enumerable:'+this.toArray().inspect()+'>';}
return{each:each,eachSlice:eachSlice,all:all,every:all,any:any,some:any,collect:collect,map:collect,detect:detect,findAll:findAll,select:findAll,filter:findAll,grep:grep,include:include,member:include,inGroupsOf:inGroupsOf,inject:inject,invoke:invoke,max:max,min:min,partition:partition,pluck:pluck,reject:reject,sortBy:sortBy,toArray:toArray,entries:toArray,zip:zip,size:size,inspect:inspect,find:detect};})();function $A(iterable){if(!iterable)return[];if('toArray'in Object(iterable))return iterable.toArray();var length=iterable.length||0,results=new Array(length);while(length--)results[length]=iterable[length];return results;}
function $w(string){if(!Object.isString(string))return[];string=string.strip();return string?string.split(/\s+/):[];}
Array.from=$A;(function(){var arrayProto=Array.prototype,slice=arrayProto.slice,_each=arrayProto.forEach;function each(iterator){for(var i=0,length=this.length;i<length;i++)
iterator(this[i]);}
if(!_each)_each=each;function clear(){this.length=0;return this;}
function first(){return this[0];}
function last(){return this[this.length-1];}
function compact(){return this.select(function(value){return value!=null;});}
function flatten(){return this.inject([],function(array,value){if(Object.isArray(value))
return array.concat(value.flatten());array.push(value);return array;});}
function without(){var values=slice.call(arguments,0);return this.select(function(value){return!values.include(value);});}
function reverse(inline){return(inline!==false?this:this.toArray())._reverse();}
function uniq(sorted){return this.inject([],function(array,value,index){if(0==index||(sorted?array.last()!=value:!array.include(value)))
array.push(value);return array;});}
function intersect(array){return this.uniq().findAll(function(item){return array.detect(function(value){return item===value});});}
function clone(){return slice.call(this,0);}
function size(){return this.length;}
function inspect(){return'['+this.map(Object.inspect).join(', ')+']';}
function toJSON(){var results=[];this.each(function(object){var value=Object.toJSON(object);if(!Object.isUndefined(value))results.push(value);});return'['+results.join(', ')+']';}
function indexOf(item,i){i||(i=0);var length=this.length;if(i<0)i=length+i;for(;i<length;i++)
if(this[i]===item)return i;return-1;}
function lastIndexOf(item,i){i=isNaN(i)?this.length:(i<0?this.length+i:i)+1;var n=this.slice(0,i).reverse().indexOf(item);return(n<0)?n:i-n-1;}
function concat(){var array=slice.call(this,0),item;for(var i=0,length=arguments.length;i<length;i++){item=arguments[i];if(Object.isArray(item)&&!('callee'in item)){for(var j=0,arrayLength=item.length;j<arrayLength;j++)
array.push(item[j]);}else{array.push(item);}}
return array;}
Object.extend(arrayProto,Enumerable);if(!arrayProto._reverse)
arrayProto._reverse=arrayProto.reverse;Object.extend(arrayProto,{_each:_each,clear:clear,first:first,last:last,compact:compact,flatten:flatten,without:without,reverse:reverse,uniq:uniq,intersect:intersect,clone:clone,toArray:clone,size:size,inspect:inspect,toJSON:toJSON});var CONCAT_ARGUMENTS_BUGGY=(function(){return[].concat(arguments)[0][0]!==1;})(1,2)
if(CONCAT_ARGUMENTS_BUGGY)arrayProto.concat=concat;if(!arrayProto.indexOf)arrayProto.indexOf=indexOf;if(!arrayProto.lastIndexOf)arrayProto.lastIndexOf=lastIndexOf;})();function $H(object){return new Hash(object);};var Hash=Class.create(Enumerable,(function(){function initialize(object){this._object=Object.isHash(object)?object.toObject():Object.clone(object);}
function _each(iterator){for(var key in this._object){var value=this._object[key],pair=[key,value];pair.key=key;pair.value=value;iterator(pair);}}
function set(key,value){return this._object[key]=value;}
function get(key){if(this._object[key]!==Object.prototype[key])
return this._object[key];}
function unset(key){var value=this._object[key];delete this._object[key];return value;}
function toObject(){return Object.clone(this._object);}
function keys(){return this.pluck('key');}
function values(){return this.pluck('value');}
function index(value){var match=this.detect(function(pair){return pair.value===value;});return match&&match.key;}
function merge(object){return this.clone().update(object);}
function update(object){return new Hash(object).inject(this,function(result,pair){result.set(pair.key,pair.value);return result;});}
function toQueryPair(key,value){if(Object.isUndefined(value))return key;return key+'='+encodeURIComponent(String.interpret(value));}
function toQueryString(){return this.inject([],function(results,pair){var key=encodeURIComponent(pair.key),values=pair.value;if(values&&typeof values=='object'){if(Object.isArray(values))
return results.concat(values.map(toQueryPair.curry(key)));}else results.push(toQueryPair(key,values));return results;}).join('&');}
function inspect(){return'#<Hash:{'+this.map(function(pair){return pair.map(Object.inspect).join(': ');}).join(', ')+'}>';}
function toJSON(){return Object.toJSON(this.toObject());}
function clone(){return new Hash(this);}
return{initialize:initialize,_each:_each,set:set,get:get,unset:unset,toObject:toObject,toTemplateReplacements:toObject,keys:keys,values:values,index:index,merge:merge,update:update,toQueryString:toQueryString,inspect:inspect,toJSON:toJSON,clone:clone};})());Hash.from=$H;Object.extend(Number.prototype,(function(){function toColorPart(){return this.toPaddedString(2,16);}
function succ(){return this+1;}
function times(iterator,context){$R(0,this,true).each(iterator,context);return this;}
function toPaddedString(length,radix){var string=this.toString(radix||10);return'0'.times(length-string.length)+string;}
function toJSON(){return isFinite(this)?this.toString():'null';}
function abs(){return Math.abs(this);}
function round(){return Math.round(this);}
function ceil(){return Math.ceil(this);}
function floor(){return Math.floor(this);}
return{toColorPart:toColorPart,succ:succ,times:times,toPaddedString:toPaddedString,toJSON:toJSON,abs:abs,round:round,ceil:ceil,floor:floor};})());function $R(start,end,exclusive){return new ObjectRange(start,end,exclusive);}
var ObjectRange=Class.create(Enumerable,(function(){function initialize(start,end,exclusive){this.start=start;this.end=end;this.exclusive=exclusive;}
function _each(iterator){var value=this.start;while(this.include(value)){iterator(value);value=value.succ();}}
function include(value){if(value<this.start)
return false;if(this.exclusive)
return value<this.end;return value<=this.end;}
return{initialize:initialize,_each:_each,include:include};})());var Ajax={getTransport:function(){return Try.these(function(){return new XMLHttpRequest()},function(){return new ActiveXObject('Msxml2.XMLHTTP')},function(){return new ActiveXObject('Microsoft.XMLHTTP')})||false;},activeRequestCount:0};Ajax.Responders={responders:[],_each:function(iterator){this.responders._each(iterator);},register:function(responder){if(!this.include(responder))
this.responders.push(responder);},unregister:function(responder){this.responders=this.responders.without(responder);},dispatch:function(callback,request,transport,json){this.each(function(responder){if(Object.isFunction(responder[callback])){try{responder[callback].apply(responder,[request,transport,json]);}catch(e){}}});}};Object.extend(Ajax.Responders,Enumerable);Ajax.Responders.register({onCreate:function(){Ajax.activeRequestCount++},onComplete:function(){Ajax.activeRequestCount--}});Ajax.Base=Class.create({initialize:function(options){this.options={method:'post',asynchronous:true,contentType:'application/x-www-form-urlencoded',encoding:'UTF-8',parameters:'',evalJSON:true,evalJS:true};Object.extend(this.options,options||{});this.options.method=this.options.method.toLowerCase();if(Object.isString(this.options.parameters))
this.options.parameters=this.options.parameters.toQueryParams();else if(Object.isHash(this.options.parameters))
this.options.parameters=this.options.parameters.toObject();}});Ajax.Request=Class.create(Ajax.Base,{_complete:false,initialize:function($super,url,options){$super(options);this.transport=Ajax.getTransport();this.request(url);},request:function(url){this.url=url;this.method=this.options.method;var params=Object.clone(this.options.parameters);if(!['get','post'].include(this.method)){params['_method']=this.method;this.method='post';}
this.parameters=params;if(params=Object.toQueryString(params)){if(this.method=='get')
this.url+=(this.url.include('?')?'&':'?')+params;else if(/Konqueror|Safari|KHTML/.test(navigator.userAgent))
params+='&_=';}
try{var response=new Ajax.Response(this);if(this.options.onCreate)this.options.onCreate(response);Ajax.Responders.dispatch('onCreate',this,response);this.transport.open(this.method.toUpperCase(),this.url,this.options.asynchronous);if(this.options.asynchronous)this.respondToReadyState.bind(this).defer(1);this.transport.onreadystatechange=this.onStateChange.bind(this);this.setRequestHeaders();this.body=this.method=='post'?(this.options.postBody||params):null;this.transport.send(this.body);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:'');if(this.transport.overrideMimeType&&(navigator.userAgent.match(/Gecko\/(\d{4})/)||[0,2005])[1]<2005)
headers['Connection']='close';}
if(typeof this.options.requestHeaders=='object'){var extras=this.options.requestHeaders;if(Object.isFunction(extras.push))
for(var i=0,length=extras.length;i<length;i+=2)
headers[extras[i]]=extras[i+1];else
$H(extras).each(function(pair){headers[pair.key]=pair.value});}
for(var name in headers)
this.transport.setRequestHeader(name,headers[name]);},success:function(){var status=this.getStatus();return!status||(status>=200&&status<300);},getStatus:function(){try{return this.transport.status||0;}catch(e){return 0}},respondToReadyState:function(readyState){var state=Ajax.Request.Events[readyState],response=new Ajax.Response(this);if(state=='Complete'){try{this._complete=true;(this.options['on'+response.status]||this.options['on'+(this.success()?'Success':'Failure')]||Prototype.emptyFunction)(response,response.headerJSON);}catch(e){this.dispatchException(e);}
var contentType=response.getHeader('Content-type');if(this.options.evalJS=='force'||(this.options.evalJS&&this.isSameOrigin()&&contentType&&contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
this.evalResponse();}
try{(this.options['on'+state]||Prototype.emptyFunction)(response,response.headerJSON);Ajax.Responders.dispatch('on'+state,this,response,response.headerJSON);}catch(e){this.dispatchException(e);}
if(state=='Complete'){this.transport.onreadystatechange=Prototype.emptyFunction;}},isSameOrigin:function(){var m=this.url.match(/^\s*https?:\/\/[^\/]*/);return!m||(m[0]=='#{protocol}//#{domain}#{port}'.interpolate({protocol:location.protocol,domain:document.domain,port:location.port?':'+location.port:''}));},getHeader:function(name){try{return this.transport.getResponseHeader(name)||null;}catch(e){return null;}},evalResponse:function(){try{return eval((this.transport.responseText||'').unfilterJSON());}catch(e){this.dispatchException(e);}},dispatchException:function(exception){(this.options.onException||Prototype.emptyFunction)(this,exception);Ajax.Responders.dispatch('onException',this,exception);}});Ajax.Request.Events=['Uninitialized','Loading','Loaded','Interactive','Complete'];Ajax.Response=Class.create({initialize:function(request){this.request=request;var transport=this.transport=request.transport,readyState=this.readyState=transport.readyState;if((readyState>2&&!Prototype.Browser.IE)||readyState==4){this.status=this.getStatus();this.statusText=this.getStatusText();this.responseText=String.interpret(transport.responseText);this.headerJSON=this._getHeaderJSON();}
if(readyState==4){var xml=transport.responseXML;this.responseXML=Object.isUndefined(xml)?null:xml;this.responseJSON=this._getResponseJSON();}},status:0,statusText:'',getStatus:Ajax.Request.prototype.getStatus,getStatusText:function(){try{return this.transport.statusText||'';}catch(e){return''}},getHeader:Ajax.Request.prototype.getHeader,getAllHeaders:function(){try{return this.getAllResponseHeaders();}catch(e){return null}},getResponseHeader:function(name){return this.transport.getResponseHeader(name);},getAllResponseHeaders:function(){return this.transport.getAllResponseHeaders();},_getHeaderJSON:function(){var json=this.getHeader('X-JSON');if(!json)return null;json=decodeURIComponent(escape(json));try{return json.evalJSON(this.request.options.sanitizeJSON||!this.request.isSameOrigin());}catch(e){this.request.dispatchException(e);}},_getResponseJSON:function(){var options=this.request.options;if(!options.evalJSON||(options.evalJSON!='force'&&!(this.getHeader('Content-type')||'').include('application/json'))||this.responseText.blank())
return null;try{return this.responseText.evalJSON(options.sanitizeJSON||!this.request.isSameOrigin());}catch(e){this.request.dispatchException(e);}}});Ajax.Updater=Class.create(Ajax.Request,{initialize:function($super,container,url,options){this.container={success:(container.success||container),failure:(container.failure||(container.success?null:container))};options=Object.clone(options);var onComplete=options.onComplete;options.onComplete=(function(response,json){this.updateContent(response.responseText);if(Object.isFunction(onComplete))onComplete(response,json);}).bind(this);$super(url,options);},updateContent:function(responseText){var receiver=this.container[this.success()?'success':'failure'],options=this.options;if(!options.evalScripts)responseText=responseText.stripScripts();if(receiver=$(receiver)){if(options.insertion){if(Object.isString(options.insertion)){var insertion={};insertion[options.insertion]=responseText;receiver.insert(insertion);}
else options.insertion(receiver,responseText);}
else receiver.update(responseText);}}});Ajax.PeriodicalUpdater=Class.create(Ajax.Base,{initialize:function($super,container,url,options){$super(options);this.onComplete=this.options.onComplete;this.frequency=(this.options.frequency||2);this.decay=(this.options.decay||1);this.updater={};this.container=container;this.url=url;this.start();},start:function(){this.options.onComplete=this.updateComplete.bind(this);this.onTimerEvent();},stop:function(){this.updater.options.onComplete=undefined;clearTimeout(this.timer);(this.onComplete||Prototype.emptyFunction).apply(this,arguments);},updateComplete:function(response){if(this.options.decay){this.decay=(response.responseText==this.lastText?this.decay*this.options.decay:1);this.lastText=response.responseText;}
this.timer=this.onTimerEvent.bind(this).delay(this.decay*this.frequency);},onTimerEvent:function(){this.updater=new Ajax.Updater(this.container,this.url,this.options);}});function $(element){if(arguments.length>1){for(var i=0,elements=[],length=arguments.length;i<length;i++)
elements.push($(arguments[i]));return elements;}
if(Object.isString(element))
element=document.getElementById(element);return Element.extend(element);}
if(Prototype.BrowserFeatures.XPath){document._getElementsByXPath=function(expression,parentElement){var results=[];var query=document.evaluate(expression,$(parentElement)||document,null,XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,null);for(var i=0,length=query.snapshotLength;i<length;i++)
results.push(Element.extend(query.snapshotItem(i)));return results;};}
if(!window.Node)var Node={};if(!Node.ELEMENT_NODE){Object.extend(Node,{ELEMENT_NODE:1,ATTRIBUTE_NODE:2,TEXT_NODE:3,CDATA_SECTION_NODE:4,ENTITY_REFERENCE_NODE:5,ENTITY_NODE:6,PROCESSING_INSTRUCTION_NODE:7,COMMENT_NODE:8,DOCUMENT_NODE:9,DOCUMENT_TYPE_NODE:10,DOCUMENT_FRAGMENT_NODE:11,NOTATION_NODE:12});}
(function(global){var SETATTRIBUTE_IGNORES_NAME=(function(){var elForm=document.createElement("form");var elInput=document.createElement("input");var root=document.documentElement;elInput.setAttribute("name","test");elForm.appendChild(elInput);root.appendChild(elForm);var isBuggy=elForm.elements?(typeof elForm.elements.test=="undefined"):null;root.removeChild(elForm);elForm=elInput=null;return isBuggy;})();var element=global.Element;global.Element=function(tagName,attributes){attributes=attributes||{};tagName=tagName.toLowerCase();var cache=Element.cache;if(SETATTRIBUTE_IGNORES_NAME&&attributes.name){tagName='<'+tagName+' name="'+attributes.name+'">';delete attributes.name;return Element.writeAttribute(document.createElement(tagName),attributes);}
if(!cache[tagName])cache[tagName]=Element.extend(document.createElement(tagName));return Element.writeAttribute(cache[tagName].cloneNode(false),attributes);};Object.extend(global.Element,element||{});if(element)global.Element.prototype=element.prototype;})(this);Element.cache={};Element.idCounter=1;Element.Methods={visible:function(element){return $(element).style.display!='none';},toggle:function(element){element=$(element);Element[Element.visible(element)?'hide':'show'](element);return element;},hide:function(element){element=$(element);element.style.display='none';return element;},show:function(element){element=$(element);element.style.display='';return element;},remove:function(element){element=$(element);element.parentNode.removeChild(element);return element;},update:(function(){var SELECT_ELEMENT_INNERHTML_BUGGY=(function(){var el=document.createElement("select"),isBuggy=true;el.innerHTML="<option value=\"test\">test</option>";if(el.options&&el.options[0]){isBuggy=el.options[0].nodeName.toUpperCase()!=="OPTION";}
el=null;return isBuggy;})();var TABLE_ELEMENT_INNERHTML_BUGGY=(function(){try{var el=document.createElement("table");if(el&&el.tBodies){el.innerHTML="<tbody><tr><td>test</td></tr></tbody>";var isBuggy=typeof el.tBodies[0]=="undefined";el=null;return isBuggy;}}catch(e){return true;}})();var SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING=(function(){var s=document.createElement("script"),isBuggy=false;try{s.appendChild(document.createTextNode(""));isBuggy=!s.firstChild||s.firstChild&&s.firstChild.nodeType!==3;}catch(e){isBuggy=true;}
s=null;return isBuggy;})();function update(element,content){element=$(element);if(content&&content.toElement)
content=content.toElement();if(Object.isElement(content))
return element.update().insert(content);content=Object.toHTML(content);var tagName=element.tagName.toUpperCase();if(tagName==='SCRIPT'&&SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING){element.text=content;return element;}
if(SELECT_ELEMENT_INNERHTML_BUGGY||TABLE_ELEMENT_INNERHTML_BUGGY){if(tagName in Element._insertionTranslations.tags){while(element.firstChild){element.removeChild(element.firstChild);}
Element._getContentFromAnonymousElement(tagName,content.stripScripts()).each(function(node){element.appendChild(node)});}
else{element.innerHTML=content.stripScripts();}}
else{element.innerHTML=content.stripScripts();}
content.evalScripts.bind(content).defer();return element;}
return update;})(),replace:function(element,content){element=$(element);if(content&&content.toElement)content=content.toElement();else if(!Object.isElement(content)){content=Object.toHTML(content);var range=element.ownerDocument.createRange();range.selectNode(element);content.evalScripts.bind(content).defer();content=range.createContextualFragment(content.stripScripts());}
element.parentNode.replaceChild(content,element);return element;},insert:function(element,insertions){element=$(element);if(Object.isString(insertions)||Object.isNumber(insertions)||Object.isElement(insertions)||(insertions&&(insertions.toElement||insertions.toHTML)))
insertions={bottom:insertions};var content,insert,tagName,childNodes;for(var position in insertions){content=insertions[position];position=position.toLowerCase();insert=Element._insertionTranslations[position];if(content&&content.toElement)content=content.toElement();if(Object.isElement(content)){insert(element,content);continue;}
content=Object.toHTML(content);tagName=((position=='before'||position=='after')?element.parentNode:element).tagName.toUpperCase();childNodes=Element._getContentFromAnonymousElement(tagName,content.stripScripts());if(position=='top'||position=='after')childNodes.reverse();childNodes.each(insert.curry(element));content.evalScripts.bind(content).defer();}
return element;},wrap:function(element,wrapper,attributes){element=$(element);if(Object.isElement(wrapper))
$(wrapper).writeAttribute(attributes||{});else if(Object.isString(wrapper))wrapper=new Element(wrapper,attributes);else wrapper=new Element('div',wrapper);if(element.parentNode)
element.parentNode.replaceChild(wrapper,element);wrapper.appendChild(element);return wrapper;},inspect:function(element){element=$(element);var result='<'+element.tagName.toLowerCase();$H({'id':'id','className':'class'}).each(function(pair){var property=pair.first(),attribute=pair.last();var value=(element[property]||'').toString();if(value)result+=' '+attribute+'='+value.inspect(true);});return result+'>';},recursivelyCollect:function(element,property){element=$(element);var elements=[];while(element=element[property])
if(element.nodeType==1)
elements.push(Element.extend(element));return elements;},ancestors:function(element){return Element.recursivelyCollect(element,'parentNode');},descendants:function(element){return Element.select(element,"*");},firstDescendant:function(element){element=$(element).firstChild;while(element&&element.nodeType!=1)element=element.nextSibling;return $(element);},immediateDescendants:function(element){if(!(element=$(element).firstChild))return[];while(element&&element.nodeType!=1)element=element.nextSibling;if(element)return[element].concat($(element).nextSiblings());return[];},previousSiblings:function(element){return Element.recursivelyCollect(element,'previousSibling');},nextSiblings:function(element){return Element.recursivelyCollect(element,'nextSibling');},siblings:function(element){element=$(element);return Element.previousSiblings(element).reverse().concat(Element.nextSiblings(element));},match:function(element,selector){if(Object.isString(selector))
selector=new Selector(selector);return selector.match($(element));},up:function(element,expression,index){element=$(element);if(arguments.length==1)return $(element.parentNode);var ancestors=Element.ancestors(element);return Object.isNumber(expression)?ancestors[expression]:Selector.findElement(ancestors,expression,index);},down:function(element,expression,index){element=$(element);if(arguments.length==1)return Element.firstDescendant(element);return Object.isNumber(expression)?Element.descendants(element)[expression]:Element.select(element,expression)[index||0];},previous:function(element,expression,index){element=$(element);if(arguments.length==1)return $(Selector.handlers.previousElementSibling(element));var previousSiblings=Element.previousSiblings(element);return Object.isNumber(expression)?previousSiblings[expression]:Selector.findElement(previousSiblings,expression,index);},next:function(element,expression,index){element=$(element);if(arguments.length==1)return $(Selector.handlers.nextElementSibling(element));var nextSiblings=Element.nextSiblings(element);return Object.isNumber(expression)?nextSiblings[expression]:Selector.findElement(nextSiblings,expression,index);},select:function(element){var args=Array.prototype.slice.call(arguments,1);return Selector.findChildElements(element,args);},adjacent:function(element){var args=Array.prototype.slice.call(arguments,1);return Selector.findChildElements(element.parentNode,args).without(element);},identify:function(element){element=$(element);var id=Element.readAttribute(element,'id');if(id)return id;do{id='anonymous_element_'+Element.idCounter++}while($(id));Element.writeAttribute(element,'id',id);return id;},readAttribute:function(element,name){element=$(element);if(Prototype.Browser.IE){var t=Element._attributeTranslations.read;if(t.values[name])return t.values[name](element,name);if(t.names[name])name=t.names[name];if(name.include(':')){return(!element.attributes||!element.attributes[name])?null:element.attributes[name].value;}}
return element.getAttribute(name);},writeAttribute:function(element,name,value){element=$(element);var attributes={},t=Element._attributeTranslations.write;if(typeof name=='object')attributes=name;else attributes[name]=Object.isUndefined(value)?true:value;for(var attr in attributes){name=t.names[attr]||attr;value=attributes[attr];if(t.values[attr])name=t.values[attr](element,value);if(value===false||value===null)
element.removeAttribute(name);else if(value===true)
element.setAttribute(name,name);else element.setAttribute(name,value);}
return element;},getHeight:function(element){return Element.getDimensions(element).height;},getWidth:function(element){return Element.getDimensions(element).width;},classNames:function(element){return new Element.ClassNames(element);},hasClassName:function(element,className){if(!(element=$(element)))return;var elementClassName=element.className;return(elementClassName.length>0&&(elementClassName==className||new RegExp("(^|\\s)"+className+"(\\s|$)").test(elementClassName)));},addClassName:function(element,className){if(!(element=$(element)))return;if(!Element.hasClassName(element,className))
element.className+=(element.className?' ':'')+className;return element;},removeClassName:function(element,className){if(!(element=$(element)))return;element.className=element.className.replace(new RegExp("(^|\\s+)"+className+"(\\s+|$)"),' ').strip();return element;},toggleClassName:function(element,className){if(!(element=$(element)))return;return Element[Element.hasClassName(element,className)?'removeClassName':'addClassName'](element,className);},cleanWhitespace:function(element){element=$(element);var node=element.firstChild;while(node){var nextNode=node.nextSibling;if(node.nodeType==3&&!/\S/.test(node.nodeValue))
element.removeChild(node);node=nextNode;}
return element;},empty:function(element){return $(element).innerHTML.blank();},descendantOf:function(element,ancestor){element=$(element),ancestor=$(ancestor);if(element.compareDocumentPosition)
return(element.compareDocumentPosition(ancestor)&8)===8;if(ancestor.contains)
return ancestor.contains(element)&&ancestor!==element;while(element=element.parentNode)
if(element==ancestor)return true;return false;},scrollTo:function(element){element=$(element);var pos=Element.cumulativeOffset(element);window.scrollTo(pos[0],pos[1]);return element;},getStyle:function(element,style){element=$(element);style=style=='float'?'cssFloat':style.camelize();var value=element.style[style];if(!value||value=='auto'){var css=document.defaultView.getComputedStyle(element,null);value=css?css[style]:null;}
if(style=='opacity')return value?parseFloat(value):1.0;return value=='auto'?null:value;},getOpacity:function(element){return $(element).getStyle('opacity');},setStyle:function(element,styles){element=$(element);var elementStyle=element.style,match;if(Object.isString(styles)){element.style.cssText+=';'+styles;return styles.include('opacity')?element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]):element;}
for(var property in styles)
if(property=='opacity')element.setOpacity(styles[property]);else
elementStyle[(property=='float'||property=='cssFloat')?(Object.isUndefined(elementStyle.styleFloat)?'cssFloat':'styleFloat'):property]=styles[property];return element;},setOpacity:function(element,value){element=$(element);element.style.opacity=(value==1||value==='')?'':(value<0.00001)?0:value;return element;},getDimensions:function(element){element=$(element);var display=Element.getStyle(element,'display');if(display!='none'&&display!=null)
return{width:element.offsetWidth,height:element.offsetHeight};var els=element.style;var originalVisibility=els.visibility;var originalPosition=els.position;var originalDisplay=els.display;els.visibility='hidden';if(originalPosition!='fixed')
els.position='absolute';els.display='block';var originalWidth=element.clientWidth;var originalHeight=element.clientHeight;els.display=originalDisplay;els.position=originalPosition;els.visibility=originalVisibility;return{width:originalWidth,height:originalHeight};},makePositioned:function(element){element=$(element);var pos=Element.getStyle(element,'position');if(pos=='static'||!pos){element._madePositioned=true;element.style.position='relative';if(Prototype.Browser.Opera){element.style.top=0;element.style.left=0;}}
return element;},undoPositioned:function(element){element=$(element);if(element._madePositioned){element._madePositioned=undefined;element.style.position=element.style.top=element.style.left=element.style.bottom=element.style.right='';}
return element;},makeClipping:function(element){element=$(element);if(element._overflow)return element;element._overflow=Element.getStyle(element,'overflow')||'auto';if(element._overflow!=='hidden')
element.style.overflow='hidden';return element;},undoClipping:function(element){element=$(element);if(!element._overflow)return element;element.style.overflow=element._overflow=='auto'?'':element._overflow;element._overflow=null;return element;},cumulativeOffset:function(element){var valueT=0,valueL=0;do{valueT+=element.offsetTop||0;valueL+=element.offsetLeft||0;element=element.offsetParent;}while(element);return Element._returnOffset(valueL,valueT);},positionedOffset:function(element){var valueT=0,valueL=0;do{valueT+=element.offsetTop||0;valueL+=element.offsetLeft||0;element=element.offsetParent;if(element){if(element.tagName.toUpperCase()=='BODY')break;var p=Element.getStyle(element,'position');if(p!=='static')break;}}while(element);return Element._returnOffset(valueL,valueT);},absolutize:function(element){element=$(element);if(Element.getStyle(element,'position')=='absolute')return element;var offsets=Element.positionedOffset(element);var top=offsets[1];var left=offsets[0];var width=element.clientWidth;var height=element.clientHeight;element._originalLeft=left-parseFloat(element.style.left||0);element._originalTop=top-parseFloat(element.style.top||0);element._originalWidth=element.style.width;element._originalHeight=element.style.height;element.style.position='absolute';element.style.top=top+'px';element.style.left=left+'px';element.style.width=width+'px';element.style.height=height+'px';return element;},relativize:function(element){element=$(element);if(Element.getStyle(element,'position')=='relative')return element;element.style.position='relative';var top=parseFloat(element.style.top||0)-(element._originalTop||0);var left=parseFloat(element.style.left||0)-(element._originalLeft||0);element.style.top=top+'px';element.style.left=left+'px';element.style.height=element._originalHeight;element.style.width=element._originalWidth;return element;},cumulativeScrollOffset:function(element){var valueT=0,valueL=0;do{valueT+=element.scrollTop||0;valueL+=element.scrollLeft||0;element=element.parentNode;}while(element);return Element._returnOffset(valueL,valueT);},getOffsetParent:function(element){if(element.offsetParent)return $(element.offsetParent);if(element==document.body)return $(element);while((element=element.parentNode)&&element!=document.body)
if(Element.getStyle(element,'position')!='static')
return $(element);return $(document.body);},viewportOffset:function(forElement){var valueT=0,valueL=0;var element=forElement;do{valueT+=element.offsetTop||0;valueL+=element.offsetLeft||0;if(element.offsetParent==document.body&&Element.getStyle(element,'position')=='absolute')break;}while(element=element.offsetParent);element=forElement;do{if(!Prototype.Browser.Opera||(element.tagName&&(element.tagName.toUpperCase()=='BODY'))){valueT-=element.scrollTop||0;valueL-=element.scrollLeft||0;}}while(element=element.parentNode);return Element._returnOffset(valueL,valueT);},clonePosition:function(element,source){var options=Object.extend({setLeft:true,setTop:true,setWidth:true,setHeight:true,offsetTop:0,offsetLeft:0},arguments[2]||{});source=$(source);var p=Element.viewportOffset(source);element=$(element);var delta=[0,0];var parent=null;if(Element.getStyle(element,'position')=='absolute'){parent=Element.getOffsetParent(element);delta=Element.viewportOffset(parent);}
if(parent==document.body){delta[0]-=document.body.offsetLeft;delta[1]-=document.body.offsetTop;}
if(options.setLeft)element.style.left=(p[0]-delta[0]+options.offsetLeft)+'px';if(options.setTop)element.style.top=(p[1]-delta[1]+options.offsetTop)+'px';if(options.setWidth)element.style.width=source.offsetWidth+'px';if(options.setHeight)element.style.height=source.offsetHeight+'px';return element;}};Object.extend(Element.Methods,{getElementsBySelector:Element.Methods.select,childElements:Element.Methods.immediateDescendants});Element._attributeTranslations={write:{names:{className:'class',htmlFor:'for'},values:{}}};if(Prototype.Browser.Opera){Element.Methods.getStyle=Element.Methods.getStyle.wrap(function(proceed,element,style){switch(style){case'left':case'top':case'right':case'bottom':if(proceed(element,'position')==='static')return null;case'height':case'width':if(!Element.visible(element))return null;var dim=parseInt(proceed(element,style),10);if(dim!==element['offset'+style.capitalize()])
return dim+'px';var properties;if(style==='height'){properties=['border-top-width','padding-top','padding-bottom','border-bottom-width'];}
else{properties=['border-left-width','padding-left','padding-right','border-right-width'];}
return properties.inject(dim,function(memo,property){var val=proceed(element,property);return val===null?memo:memo-parseInt(val,10);})+'px';default:return proceed(element,style);}});Element.Methods.readAttribute=Element.Methods.readAttribute.wrap(function(proceed,element,attribute){if(attribute==='title')return element.title;return proceed(element,attribute);});}
else if(Prototype.Browser.IE){Element.Methods.getOffsetParent=Element.Methods.getOffsetParent.wrap(function(proceed,element){element=$(element);try{element.offsetParent}
catch(e){return $(document.body)}
var position=element.getStyle('position');if(position!=='static')return proceed(element);element.setStyle({position:'relative'});var value=proceed(element);element.setStyle({position:position});return value;});$w('positionedOffset viewportOffset').each(function(method){Element.Methods[method]=Element.Methods[method].wrap(function(proceed,element){element=$(element);try{element.offsetParent}
catch(e){return Element._returnOffset(0,0)}
var position=element.getStyle('position');if(position!=='static')return proceed(element);var offsetParent=element.getOffsetParent();if(offsetParent&&offsetParent.getStyle('position')==='fixed')
offsetParent.setStyle({zoom:1});element.setStyle({position:'relative'});var value=proceed(element);element.setStyle({position:position});return value;});});Element.Methods.cumulativeOffset=Element.Methods.cumulativeOffset.wrap(function(proceed,element){try{element.offsetParent}
catch(e){return Element._returnOffset(0,0)}
return proceed(element);});Element.Methods.getStyle=function(element,style){element=$(element);style=(style=='float'||style=='cssFloat')?'styleFloat':style.camelize();var value=element.style[style];if(!value&&element.currentStyle)value=element.currentStyle[style];if(style=='opacity'){if(value=(element.getStyle('filter')||'').match(/alpha\(opacity=(.*)\)/))
if(value[1])return parseFloat(value[1])/100;return 1.0;}
if(value=='auto'){if((style=='width'||style=='height')&&(element.getStyle('display')!='none'))
return element['offset'+style.capitalize()]+'px';return null;}
return value;};Element.Methods.setOpacity=function(element,value){function stripAlpha(filter){return filter.replace(/alpha\([^\)]*\)/gi,'');}
element=$(element);var currentStyle=element.currentStyle;if((currentStyle&&!currentStyle.hasLayout)||(!currentStyle&&element.style.zoom=='normal'))
element.style.zoom=1;var filter=element.getStyle('filter'),style=element.style;if(value==1||value===''){(filter=stripAlpha(filter))?style.filter=filter:style.removeAttribute('filter');return element;}else if(value<0.00001)value=0;style.filter=stripAlpha(filter)+'alpha(opacity='+(value*100)+')';return element;};Element._attributeTranslations=(function(){var classProp='className';var forProp='for';var el=document.createElement('div');el.setAttribute(classProp,'x');if(el.className!=='x'){el.setAttribute('class','x');if(el.className==='x'){classProp='class';}}
el=null;el=document.createElement('label');el.setAttribute(forProp,'x');if(el.htmlFor!=='x'){el.setAttribute('htmlFor','x');if(el.htmlFor==='x'){forProp='htmlFor';}}
el=null;return{read:{names:{'class':classProp,'className':classProp,'for':forProp,'htmlFor':forProp},values:{_getAttr:function(element,attribute){return element.getAttribute(attribute);},_getAttr2:function(element,attribute){return element.getAttribute(attribute,2);},_getAttrNode:function(element,attribute){var node=element.getAttributeNode(attribute);return node?node.value:"";},_getEv:(function(){var el=document.createElement('div');el.onclick=Prototype.emptyFunction;var value=el.getAttribute('onclick');var f;if(String(value).indexOf('{')>-1){f=function(element,attribute){attribute=element.getAttribute(attribute);if(!attribute)return null;attribute=attribute.toString();attribute=attribute.split('{')[1];attribute=attribute.split('}')[0];return attribute.strip();};}
else if(value===''){f=function(element,attribute){attribute=element.getAttribute(attribute);if(!attribute)return null;return attribute.strip();};}
el=null;return f;})(),_flag:function(element,attribute){return $(element).hasAttribute(attribute)?attribute:null;},style:function(element){return element.style.cssText.toLowerCase();},title:function(element){return element.title;}}}}})();Element._attributeTranslations.write={names:Object.extend({cellpadding:'cellPadding',cellspacing:'cellSpacing'},Element._attributeTranslations.read.names),values:{checked:function(element,value){element.checked=!!value;},style:function(element,value){element.style.cssText=value?value:'';}}};Element._attributeTranslations.has={};$w('colSpan rowSpan vAlign dateTime accessKey tabIndex '+'encType maxLength readOnly longDesc frameBorder').each(function(attr){Element._attributeTranslations.write.names[attr.toLowerCase()]=attr;Element._attributeTranslations.has[attr.toLowerCase()]=attr;});(function(v){Object.extend(v,{href:v._getAttr2,src:v._getAttr2,type:v._getAttr,action:v._getAttrNode,disabled:v._flag,checked:v._flag,readonly:v._flag,multiple:v._flag,onload:v._getEv,onunload:v._getEv,onclick:v._getEv,ondblclick:v._getEv,onmousedown:v._getEv,onmouseup:v._getEv,onmouseover:v._getEv,onmousemove:v._getEv,onmouseout:v._getEv,onfocus:v._getEv,onblur:v._getEv,onkeypress:v._getEv,onkeydown:v._getEv,onkeyup:v._getEv,onsubmit:v._getEv,onreset:v._getEv,onselect:v._getEv,onchange:v._getEv});})(Element._attributeTranslations.read.values);if(Prototype.BrowserFeatures.ElementExtensions){(function(){function _descendants(element){var nodes=element.getElementsByTagName('*'),results=[];for(var i=0,node;node=nodes[i];i++)
if(node.tagName!=="!")
results.push(node);return results;}
Element.Methods.down=function(element,expression,index){element=$(element);if(arguments.length==1)return element.firstDescendant();return Object.isNumber(expression)?_descendants(element)[expression]:Element.select(element,expression)[index||0];}})();}}
else if(Prototype.Browser.Gecko&&/rv:1\.8\.0/.test(navigator.userAgent)){Element.Methods.setOpacity=function(element,value){element=$(element);element.style.opacity=(value==1)?0.999999:(value==='')?'':(value<0.00001)?0:value;return element;};}
else if(Prototype.Browser.WebKit){Element.Methods.setOpacity=function(element,value){element=$(element);element.style.opacity=(value==1||value==='')?'':(value<0.00001)?0:value;if(value==1)
if(element.tagName.toUpperCase()=='IMG'&&element.width){element.width++;element.width--;}else try{var n=document.createTextNode(' ');element.appendChild(n);element.removeChild(n);}catch(e){}
return element;};Element.Methods.cumulativeOffset=function(element){var valueT=0,valueL=0;do{valueT+=element.offsetTop||0;valueL+=element.offsetLeft||0;if(element.offsetParent==document.body)
if(Element.getStyle(element,'position')=='absolute')break;element=element.offsetParent;}while(element);return Element._returnOffset(valueL,valueT);};}
if('outerHTML'in document.documentElement){Element.Methods.replace=function(element,content){element=$(element);if(content&&content.toElement)content=content.toElement();if(Object.isElement(content)){element.parentNode.replaceChild(content,element);return element;}
content=Object.toHTML(content);var parent=element.parentNode,tagName=parent.tagName.toUpperCase();if(Element._insertionTranslations.tags[tagName]){var nextSibling=element.next();var fragments=Element._getContentFromAnonymousElement(tagName,content.stripScripts());parent.removeChild(element);if(nextSibling)
fragments.each(function(node){parent.insertBefore(node,nextSibling)});else
fragments.each(function(node){parent.appendChild(node)});}
else element.outerHTML=content.stripScripts();content.evalScripts.bind(content).defer();return element;};}
Element._returnOffset=function(l,t){var result=[l,t];result.left=l;result.top=t;return result;};Element._getContentFromAnonymousElement=function(tagName,html){var div=new Element('div'),t=Element._insertionTranslations.tags[tagName];if(t){div.innerHTML=t[0]+html+t[1];t[2].times(function(){div=div.firstChild});}else div.innerHTML=html;return $A(div.childNodes);};Element._insertionTranslations={before:function(element,node){element.parentNode.insertBefore(node,element);},top:function(element,node){element.insertBefore(node,element.firstChild);},bottom:function(element,node){element.appendChild(node);},after:function(element,node){element.parentNode.insertBefore(node,element.nextSibling);},tags:{TABLE:['<table>','</table>',1],TBODY:['<table><tbody>','</tbody></table>',2],TR:['<table><tbody><tr>','</tr></tbody></table>',3],TD:['<table><tbody><tr><td>','</td></tr></tbody></table>',4],SELECT:['<select>','</select>',1]}};(function(){var tags=Element._insertionTranslations.tags;Object.extend(tags,{THEAD:tags.TBODY,TFOOT:tags.TBODY,TH:tags.TD});})();Element.Methods.Simulated={hasAttribute:function(element,attribute){attribute=Element._attributeTranslations.has[attribute]||attribute;var node=$(element).getAttributeNode(attribute);return!!(node&&node.specified);}};Element.Methods.ByTag={};Object.extend(Element,Element.Methods);(function(div){if(!Prototype.BrowserFeatures.ElementExtensions&&div['__proto__']){window.HTMLElement={};window.HTMLElement.prototype=div['__proto__'];Prototype.BrowserFeatures.ElementExtensions=true;}
div=null;})(document.createElement('div'))
Element.extend=(function(){function checkDeficiency(tagName){if(typeof window.Element!='undefined'){var proto=window.Element.prototype;if(proto){var id='_'+(Math.random()+'').slice(2);var el=document.createElement(tagName);proto[id]='x';var isBuggy=(el[id]!=='x');delete proto[id];el=null;return isBuggy;}}
return false;}
function extendElementWith(element,methods){for(var property in methods){var value=methods[property];if(Object.isFunction(value)&&!(property in element))
element[property]=value.methodize();}}
var HTMLOBJECTELEMENT_PROTOTYPE_BUGGY=checkDeficiency('object');if(Prototype.BrowserFeatures.SpecificElementExtensions){if(HTMLOBJECTELEMENT_PROTOTYPE_BUGGY){return function(element){if(element&&typeof element._extendedByPrototype=='undefined'){var t=element.tagName;if(t&&(/^(?:object|applet|embed)$/i.test(t))){extendElementWith(element,Element.Methods);extendElementWith(element,Element.Methods.Simulated);extendElementWith(element,Element.Methods.ByTag[t.toUpperCase()]);}}
return element;}}
return Prototype.K;}
var Methods={},ByTag=Element.Methods.ByTag;var extend=Object.extend(function(element){if(!element||typeof element._extendedByPrototype!='undefined'||element.nodeType!=1||element==window)return element;var methods=Object.clone(Methods),tagName=element.tagName.toUpperCase();if(ByTag[tagName])Object.extend(methods,ByTag[tagName]);extendElementWith(element,methods);element._extendedByPrototype=Prototype.emptyFunction;return element;},{refresh:function(){if(!Prototype.BrowserFeatures.ElementExtensions){Object.extend(Methods,Element.Methods);Object.extend(Methods,Element.Methods.Simulated);}}});extend.refresh();return extend;})();Element.hasAttribute=function(element,attribute){if(element.hasAttribute)return element.hasAttribute(attribute);return Element.Methods.Simulated.hasAttribute(element,attribute);};Element.addMethods=function(methods){var F=Prototype.BrowserFeatures,T=Element.Methods.ByTag;if(!methods){Object.extend(Form,Form.Methods);Object.extend(Form.Element,Form.Element.Methods);Object.extend(Element.Methods.ByTag,{"FORM":Object.clone(Form.Methods),"INPUT":Object.clone(Form.Element.Methods),"SELECT":Object.clone(Form.Element.Methods),"TEXTAREA":Object.clone(Form.Element.Methods)});}
if(arguments.length==2){var tagName=methods;methods=arguments[1];}
if(!tagName)Object.extend(Element.Methods,methods||{});else{if(Object.isArray(tagName))tagName.each(extend);else extend(tagName);}
function extend(tagName){tagName=tagName.toUpperCase();if(!Element.Methods.ByTag[tagName])
Element.Methods.ByTag[tagName]={};Object.extend(Element.Methods.ByTag[tagName],methods);}
function copy(methods,destination,onlyIfAbsent){onlyIfAbsent=onlyIfAbsent||false;for(var property in methods){var value=methods[property];if(!Object.isFunction(value))continue;if(!onlyIfAbsent||!(property in destination))
destination[property]=value.methodize();}}
function findDOMClass(tagName){var klass;var trans={"OPTGROUP":"OptGroup","TEXTAREA":"TextArea","P":"Paragraph","FIELDSET":"FieldSet","UL":"UList","OL":"OList","DL":"DList","DIR":"Directory","H1":"Heading","H2":"Heading","H3":"Heading","H4":"Heading","H5":"Heading","H6":"Heading","Q":"Quote","INS":"Mod","DEL":"Mod","A":"Anchor","IMG":"Image","CAPTION":"TableCaption","COL":"TableCol","COLGROUP":"TableCol","THEAD":"TableSection","TFOOT":"TableSection","TBODY":"TableSection","TR":"TableRow","TH":"TableCell","TD":"TableCell","FRAMESET":"FrameSet","IFRAME":"IFrame"};if(trans[tagName])klass='HTML'+trans[tagName]+'Element';if(window[klass])return window[klass];klass='HTML'+tagName+'Element';if(window[klass])return window[klass];klass='HTML'+tagName.capitalize()+'Element';if(window[klass])return window[klass];var element=document.createElement(tagName);var proto=element['__proto__']||element.constructor.prototype;element=null;return proto;}
var elementPrototype=window.HTMLElement?HTMLElement.prototype:Element.prototype;if(F.ElementExtensions){copy(Element.Methods,elementPrototype);copy(Element.Methods.Simulated,elementPrototype,true);}
if(F.SpecificElementExtensions){for(var tag in Element.Methods.ByTag){var klass=findDOMClass(tag);if(Object.isUndefined(klass))continue;copy(T[tag],klass.prototype);}}
Object.extend(Element,Element.Methods);delete Element.ByTag;if(Element.extend.refresh)Element.extend.refresh();Element.cache={};};document.viewport={getDimensions:function(){return{width:this.getWidth(),height:this.getHeight()};},getScrollOffsets:function(){return Element._returnOffset(window.pageXOffset||document.documentElement.scrollLeft||document.body.scrollLeft,window.pageYOffset||document.documentElement.scrollTop||document.body.scrollTop);}};(function(viewport){var B=Prototype.Browser,doc=document,element,property={};function getRootElement(){if(B.WebKit&&!doc.evaluate)
return document;if(B.Opera&&window.parseFloat(window.opera.version())<9.5)
return document.body;return document.documentElement;}
function define(D){if(!element)element=getRootElement();property[D]='client'+D;viewport['get'+D]=function(){return element[property[D]]};return viewport['get'+D]();}
viewport.getWidth=define.curry('Width');viewport.getHeight=define.curry('Height');})(document.viewport);Element.Storage={UID:1};Element.addMethods({getStorage:function(element){if(!(element=$(element)))return;var uid;if(element===window){uid=0;}else{if(typeof element._prototypeUID==="undefined")
element._prototypeUID=[Element.Storage.UID++];uid=element._prototypeUID[0];}
if(!Element.Storage[uid])
Element.Storage[uid]=$H();return Element.Storage[uid];},store:function(element,key,value){if(!(element=$(element)))return;if(arguments.length===2){Element.getStorage(element).update(key);}else{Element.getStorage(element).set(key,value);}
return element;},retrieve:function(element,key,defaultValue){if(!(element=$(element)))return;var hash=Element.getStorage(element),value=hash.get(key);if(Object.isUndefined(value)){hash.set(key,defaultValue);value=defaultValue;}
return value;},clone:function(element,deep){if(!(element=$(element)))return;var clone=element.cloneNode(deep);clone._prototypeUID=void 0;if(deep){var descendants=Element.select(clone,'*'),i=descendants.length;while(i--){descendants[i]._prototypeUID=void 0;}}
return Element.extend(clone);}});var Selector=Class.create({initialize:function(expression){this.expression=expression.strip();if(this.shouldUseSelectorsAPI()){this.mode='selectorsAPI';}else if(this.shouldUseXPath()){this.mode='xpath';this.compileXPathMatcher();}else{this.mode="normal";this.compileMatcher();}},shouldUseXPath:(function(){var IS_DESCENDANT_SELECTOR_BUGGY=(function(){var isBuggy=false;if(document.evaluate&&window.XPathResult){var el=document.createElement('div');el.innerHTML='<ul><li></li></ul><div><ul><li></li></ul></div>';var xpath=".//*[local-name()='ul' or local-name()='UL']"+"//*[local-name()='li' or local-name()='LI']";var result=document.evaluate(xpath,el,null,XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,null);isBuggy=(result.snapshotLength!==2);el=null;}
return isBuggy;})();return function(){if(!Prototype.BrowserFeatures.XPath)return false;var e=this.expression;if(Prototype.Browser.WebKit&&(e.include("-of-type")||e.include(":empty")))
return false;if((/(\[[\w-]*?:|:checked)/).test(e))
return false;if(IS_DESCENDANT_SELECTOR_BUGGY)return false;return true;}})(),shouldUseSelectorsAPI:function(){if(!Prototype.BrowserFeatures.SelectorsAPI)return false;if(Selector.CASE_INSENSITIVE_CLASS_NAMES)return false;if(!Selector._div)Selector._div=new Element('div');try{Selector._div.querySelector(this.expression);}catch(e){return false;}
return true;},compileMatcher:function(){var e=this.expression,ps=Selector.patterns,h=Selector.handlers,c=Selector.criteria,le,p,m,len=ps.length,name;if(Selector._cache[e]){this.matcher=Selector._cache[e];return;}
this.matcher=["this.matcher = function(root) {","var r = root, h = Selector.handlers, c = false, n;"];while(e&&le!=e&&(/\S/).test(e)){le=e;for(var i=0;i<len;i++){p=ps[i].re;name=ps[i].name;if(m=e.match(p)){this.matcher.push(Object.isFunction(c[name])?c[name](m):new Template(c[name]).evaluate(m));e=e.replace(m[0],'');break;}}}
this.matcher.push("return h.unique(n);\n}");eval(this.matcher.join('\n'));Selector._cache[this.expression]=this.matcher;},compileXPathMatcher:function(){var e=this.expression,ps=Selector.patterns,x=Selector.xpath,le,m,len=ps.length,name;if(Selector._cache[e]){this.xpath=Selector._cache[e];return;}
this.matcher=['.//*'];while(e&&le!=e&&(/\S/).test(e)){le=e;for(var i=0;i<len;i++){name=ps[i].name;if(m=e.match(ps[i].re)){this.matcher.push(Object.isFunction(x[name])?x[name](m):new Template(x[name]).evaluate(m));e=e.replace(m[0],'');break;}}}
this.xpath=this.matcher.join('');Selector._cache[this.expression]=this.xpath;},findElements:function(root){root=root||document;var e=this.expression,results;switch(this.mode){case'selectorsAPI':if(root!==document){var oldId=root.id,id=$(root).identify();id=id.replace(/([\.:])/g,"\\$1");e="#"+id+" "+e;}
results=$A(root.querySelectorAll(e)).map(Element.extend);root.id=oldId;return results;case'xpath':return document._getElementsByXPath(this.xpath,root);default:return this.matcher(root);}},match:function(element){this.tokens=[];var e=this.expression,ps=Selector.patterns,as=Selector.assertions;var le,p,m,len=ps.length,name;while(e&&le!==e&&(/\S/).test(e)){le=e;for(var i=0;i<len;i++){p=ps[i].re;name=ps[i].name;if(m=e.match(p)){if(as[name]){this.tokens.push([name,Object.clone(m)]);e=e.replace(m[0],'');}else{return this.findElements(document).include(element);}}}}
var match=true,name,matches;for(var i=0,token;token=this.tokens[i];i++){name=token[0],matches=token[1];if(!Selector.assertions[name](element,matches)){match=false;break;}}
return match;},toString:function(){return this.expression;},inspect:function(){return"#<Selector:"+this.expression.inspect()+">";}});if(Prototype.BrowserFeatures.SelectorsAPI&&document.compatMode==='BackCompat'){Selector.CASE_INSENSITIVE_CLASS_NAMES=(function(){var div=document.createElement('div'),span=document.createElement('span');div.id="prototype_test_id";span.className='Test';div.appendChild(span);var isIgnored=(div.querySelector('#prototype_test_id .test')!==null);div=span=null;return isIgnored;})();}
Object.extend(Selector,{_cache:{},xpath:{descendant:"//*",child:"/*",adjacent:"/following-sibling::*[1]",laterSibling:'/following-sibling::*',tagName:function(m){if(m[1]=='*')return'';return"[local-name()='"+m[1].toLowerCase()+"' or local-name()='"+m[1].toUpperCase()+"']";},className:"[contains(concat(' ', @class, ' '), ' #{1} ')]",id:"[@id='#{1}']",attrPresence:function(m){m[1]=m[1].toLowerCase();return new Template("[@#{1}]").evaluate(m);},attr:function(m){m[1]=m[1].toLowerCase();m[3]=m[5]||m[6];return new Template(Selector.xpath.operators[m[2]]).evaluate(m);},pseudo:function(m){var h=Selector.xpath.pseudos[m[1]];if(!h)return'';if(Object.isFunction(h))return h(m);return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m);},operators:{'=':"[@#{1}='#{3}']",'!=':"[@#{1}!='#{3}']",'^=':"[starts-with(@#{1}, '#{3}')]",'$=':"[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",'*=':"[contains(@#{1}, '#{3}')]",'~=':"[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",'|=':"[contains(concat('-', @#{1}, '-'), '-#{3}-')]"},pseudos:{'first-child':'[not(preceding-sibling::*)]','last-child':'[not(following-sibling::*)]','only-child':'[not(preceding-sibling::* or following-sibling::*)]','empty':"[count(*) = 0 and (count(text()) = 0)]",'checked':"[@checked]",'disabled':"[(@disabled) and (@type!='hidden')]",'enabled':"[not(@disabled) and (@type!='hidden')]",'not':function(m){var e=m[6],p=Selector.patterns,x=Selector.xpath,le,v,len=p.length,name;var exclusion=[];while(e&&le!=e&&(/\S/).test(e)){le=e;for(var i=0;i<len;i++){name=p[i].name
if(m=e.match(p[i].re)){v=Object.isFunction(x[name])?x[name](m):new Template(x[name]).evaluate(m);exclusion.push("("+v.substring(1,v.length-1)+")");e=e.replace(m[0],'');break;}}}
return"[not("+exclusion.join(" and ")+")]";},'nth-child':function(m){return Selector.xpath.pseudos.nth("(count(./preceding-sibling::*) + 1) ",m);},'nth-last-child':function(m){return Selector.xpath.pseudos.nth("(count(./following-sibling::*) + 1) ",m);},'nth-of-type':function(m){return Selector.xpath.pseudos.nth("position() ",m);},'nth-last-of-type':function(m){return Selector.xpath.pseudos.nth("(last() + 1 - position()) ",m);},'first-of-type':function(m){m[6]="1";return Selector.xpath.pseudos['nth-of-type'](m);},'last-of-type':function(m){m[6]="1";return Selector.xpath.pseudos['nth-last-of-type'](m);},'only-of-type':function(m){var p=Selector.xpath.pseudos;return p['first-of-type'](m)+p['last-of-type'](m);},nth:function(fragment,m){var mm,formula=m[6],predicate;if(formula=='even')formula='2n+0';if(formula=='odd')formula='2n+1';if(mm=formula.match(/^(\d+)$/))
return'['+fragment+"= "+mm[1]+']';if(mm=formula.match(/^(-?\d*)?n(([+-])(\d+))?/)){if(mm[1]=="-")mm[1]=-1;var a=mm[1]?Number(mm[1]):1;var b=mm[2]?Number(mm[2]):0;predicate="[((#{fragment} - #{b}) mod #{a} = 0) and "+"((#{fragment} - #{b}) div #{a} >= 0)]";return new Template(predicate).evaluate({fragment:fragment,a:a,b:b});}}}},criteria:{tagName:'n = h.tagName(n, r, "#{1}", c);      c = false;',className:'n = h.className(n, r, "#{1}", c);    c = false;',id:'n = h.id(n, r, "#{1}", c);           c = false;',attrPresence:'n = h.attrPresence(n, r, "#{1}", c); c = false;',attr:function(m){m[3]=(m[5]||m[6]);return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}", c); c = false;').evaluate(m);},pseudo:function(m){if(m[6])m[6]=m[6].replace(/"/g,'\\"');return new Template('n = h.pseudo(n, "#{1}", "#{6}", r, c); c = false;').evaluate(m);},descendant:'c = "descendant";',child:'c = "child";',adjacent:'c = "adjacent";',laterSibling:'c = "laterSibling";'},patterns:[{name:'laterSibling',re:/^\s*~\s*/},{name:'child',re:/^\s*>\s*/},{name:'adjacent',re:/^\s*\+\s*/},{name:'descendant',re:/^\s/},{name:'tagName',re:/^\s*(\*|[\w\-]+)(\b|$)?/},{name:'id',re:/^#([\w\-\*]+)(\b|$)/},{name:'className',re:/^\.([\w\-\*]+)(\b|$)/},{name:'pseudo',re:/^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)(\((.*?)\))?(\b|$|(?=\s|[:+~>]))/},{name:'attrPresence',re:/^\[((?:[\w-]+:)?[\w-]+)\]/},{name:'attr',re:/\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/}],assertions:{tagName:function(element,matches){return matches[1].toUpperCase()==element.tagName.toUpperCase();},className:function(element,matches){return Element.hasClassName(element,matches[1]);},id:function(element,matches){return element.id===matches[1];},attrPresence:function(element,matches){return Element.hasAttribute(element,matches[1]);},attr:function(element,matches){var nodeValue=Element.readAttribute(element,matches[1]);return nodeValue&&Selector.operators[matches[2]](nodeValue,matches[5]||matches[6]);}},handlers:{concat:function(a,b){for(var i=0,node;node=b[i];i++)
a.push(node);return a;},mark:function(nodes){var _true=Prototype.emptyFunction;for(var i=0,node;node=nodes[i];i++)
node._countedByPrototype=_true;return nodes;},unmark:(function(){var PROPERTIES_ATTRIBUTES_MAP=(function(){var el=document.createElement('div'),isBuggy=false,propName='_countedByPrototype',value='x'
el[propName]=value;isBuggy=(el.getAttribute(propName)===value);el=null;return isBuggy;})();return PROPERTIES_ATTRIBUTES_MAP?function(nodes){for(var i=0,node;node=nodes[i];i++)
node.removeAttribute('_countedByPrototype');return nodes;}:function(nodes){for(var i=0,node;node=nodes[i];i++)
node._countedByPrototype=void 0;return nodes;}})(),index:function(parentNode,reverse,ofType){parentNode._countedByPrototype=Prototype.emptyFunction;if(reverse){for(var nodes=parentNode.childNodes,i=nodes.length-1,j=1;i>=0;i--){var node=nodes[i];if(node.nodeType==1&&(!ofType||node._countedByPrototype))node.nodeIndex=j++;}}else{for(var i=0,j=1,nodes=parentNode.childNodes;node=nodes[i];i++)
if(node.nodeType==1&&(!ofType||node._countedByPrototype))node.nodeIndex=j++;}},unique:function(nodes){if(nodes.length==0)return nodes;var results=[],n;for(var i=0,l=nodes.length;i<l;i++)
if(typeof(n=nodes[i])._countedByPrototype=='undefined'){n._countedByPrototype=Prototype.emptyFunction;results.push(Element.extend(n));}
return Selector.handlers.unmark(results);},descendant:function(nodes){var h=Selector.handlers;for(var i=0,results=[],node;node=nodes[i];i++)
h.concat(results,node.getElementsByTagName('*'));return results;},child:function(nodes){var h=Selector.handlers;for(var i=0,results=[],node;node=nodes[i];i++){for(var j=0,child;child=node.childNodes[j];j++)
if(child.nodeType==1&&child.tagName!='!')results.push(child);}
return results;},adjacent:function(nodes){for(var i=0,results=[],node;node=nodes[i];i++){var next=this.nextElementSibling(node);if(next)results.push(next);}
return results;},laterSibling:function(nodes){var h=Selector.handlers;for(var i=0,results=[],node;node=nodes[i];i++)
h.concat(results,Element.nextSiblings(node));return results;},nextElementSibling:function(node){while(node=node.nextSibling)
if(node.nodeType==1)return node;return null;},previousElementSibling:function(node){while(node=node.previousSibling)
if(node.nodeType==1)return node;return null;},tagName:function(nodes,root,tagName,combinator){var uTagName=tagName.toUpperCase();var results=[],h=Selector.handlers;if(nodes){if(combinator){if(combinator=="descendant"){for(var i=0,node;node=nodes[i];i++)
h.concat(results,node.getElementsByTagName(tagName));return results;}else nodes=this[combinator](nodes);if(tagName=="*")return nodes;}
for(var i=0,node;node=nodes[i];i++)
if(node.tagName.toUpperCase()===uTagName)results.push(node);return results;}else return root.getElementsByTagName(tagName);},id:function(nodes,root,id,combinator){var targetNode=$(id),h=Selector.handlers;if(root==document){if(!targetNode)return[];if(!nodes)return[targetNode];}else{if(!root.sourceIndex||root.sourceIndex<1){var nodes=root.getElementsByTagName('*');for(var j=0,node;node=nodes[j];j++){if(node.id===id)return[node];}}}
if(nodes){if(combinator){if(combinator=='child'){for(var i=0,node;node=nodes[i];i++)
if(targetNode.parentNode==node)return[targetNode];}else if(combinator=='descendant'){for(var i=0,node;node=nodes[i];i++)
if(Element.descendantOf(targetNode,node))return[targetNode];}else if(combinator=='adjacent'){for(var i=0,node;node=nodes[i];i++)
if(Selector.handlers.previousElementSibling(targetNode)==node)
return[targetNode];}else nodes=h[combinator](nodes);}
for(var i=0,node;node=nodes[i];i++)
if(node==targetNode)return[targetNode];return[];}
return(targetNode&&Element.descendantOf(targetNode,root))?[targetNode]:[];},className:function(nodes,root,className,combinator){if(nodes&&combinator)nodes=this[combinator](nodes);return Selector.handlers.byClassName(nodes,root,className);},byClassName:function(nodes,root,className){if(!nodes)nodes=Selector.handlers.descendant([root]);var needle=' '+className+' ';for(var i=0,results=[],node,nodeClassName;node=nodes[i];i++){nodeClassName=node.className;if(nodeClassName.length==0)continue;if(nodeClassName==className||(' '+nodeClassName+' ').include(needle))
results.push(node);}
return results;},attrPresence:function(nodes,root,attr,combinator){if(!nodes)nodes=root.getElementsByTagName("*");if(nodes&&combinator)nodes=this[combinator](nodes);var results=[];for(var i=0,node;node=nodes[i];i++)
if(Element.hasAttribute(node,attr))results.push(node);return results;},attr:function(nodes,root,attr,value,operator,combinator){if(!nodes)nodes=root.getElementsByTagName("*");if(nodes&&combinator)nodes=this[combinator](nodes);var handler=Selector.operators[operator],results=[];for(var i=0,node;node=nodes[i];i++){var nodeValue=Element.readAttribute(node,attr);if(nodeValue===null)continue;if(handler(nodeValue,value))results.push(node);}
return results;},pseudo:function(nodes,name,value,root,combinator){if(nodes&&combinator)nodes=this[combinator](nodes);if(!nodes)nodes=root.getElementsByTagName("*");return Selector.pseudos[name](nodes,value,root);}},pseudos:{'first-child':function(nodes,value,root){for(var i=0,results=[],node;node=nodes[i];i++){if(Selector.handlers.previousElementSibling(node))continue;results.push(node);}
return results;},'last-child':function(nodes,value,root){for(var i=0,results=[],node;node=nodes[i];i++){if(Selector.handlers.nextElementSibling(node))continue;results.push(node);}
return results;},'only-child':function(nodes,value,root){var h=Selector.handlers;for(var i=0,results=[],node;node=nodes[i];i++)
if(!h.previousElementSibling(node)&&!h.nextElementSibling(node))
results.push(node);return results;},'nth-child':function(nodes,formula,root){return Selector.pseudos.nth(nodes,formula,root);},'nth-last-child':function(nodes,formula,root){return Selector.pseudos.nth(nodes,formula,root,true);},'nth-of-type':function(nodes,formula,root){return Selector.pseudos.nth(nodes,formula,root,false,true);},'nth-last-of-type':function(nodes,formula,root){return Selector.pseudos.nth(nodes,formula,root,true,true);},'first-of-type':function(nodes,formula,root){return Selector.pseudos.nth(nodes,"1",root,false,true);},'last-of-type':function(nodes,formula,root){return Selector.pseudos.nth(nodes,"1",root,true,true);},'only-of-type':function(nodes,formula,root){var p=Selector.pseudos;return p['last-of-type'](p['first-of-type'](nodes,formula,root),formula,root);},getIndices:function(a,b,total){if(a==0)return b>0?[b]:[];return $R(1,total).inject([],function(memo,i){if(0==(i-b)%a&&(i-b)/a>=0)memo.push(i);return memo;});},nth:function(nodes,formula,root,reverse,ofType){if(nodes.length==0)return[];if(formula=='even')formula='2n+0';if(formula=='odd')formula='2n+1';var h=Selector.handlers,results=[],indexed=[],m;h.mark(nodes);for(var i=0,node;node=nodes[i];i++){if(!node.parentNode._countedByPrototype){h.index(node.parentNode,reverse,ofType);indexed.push(node.parentNode);}}
if(formula.match(/^\d+$/)){formula=Number(formula);for(var i=0,node;node=nodes[i];i++)
if(node.nodeIndex==formula)results.push(node);}else if(m=formula.match(/^(-?\d*)?n(([+-])(\d+))?/)){if(m[1]=="-")m[1]=-1;var a=m[1]?Number(m[1]):1;var b=m[2]?Number(m[2]):0;var indices=Selector.pseudos.getIndices(a,b,nodes.length);for(var i=0,node,l=indices.length;node=nodes[i];i++){for(var j=0;j<l;j++)
if(node.nodeIndex==indices[j])results.push(node);}}
h.unmark(nodes);h.unmark(indexed);return results;},'empty':function(nodes,value,root){for(var i=0,results=[],node;node=nodes[i];i++){if(node.tagName=='!'||node.firstChild)continue;results.push(node);}
return results;},'not':function(nodes,selector,root){var h=Selector.handlers,selectorType,m;var exclusions=new Selector(selector).findElements(root);h.mark(exclusions);for(var i=0,results=[],node;node=nodes[i];i++)
if(!node._countedByPrototype)results.push(node);h.unmark(exclusions);return results;},'enabled':function(nodes,value,root){for(var i=0,results=[],node;node=nodes[i];i++)
if(!node.disabled&&(!node.type||node.type!=='hidden'))
results.push(node);return results;},'disabled':function(nodes,value,root){for(var i=0,results=[],node;node=nodes[i];i++)
if(node.disabled)results.push(node);return results;},'checked':function(nodes,value,root){for(var i=0,results=[],node;node=nodes[i];i++)
if(node.checked)results.push(node);return results;}},operators:{'=':function(nv,v){return nv==v;},'!=':function(nv,v){return nv!=v;},'^=':function(nv,v){return nv==v||nv&&nv.startsWith(v);},'$=':function(nv,v){return nv==v||nv&&nv.endsWith(v);},'*=':function(nv,v){return nv==v||nv&&nv.include(v);},'~=':function(nv,v){return(' '+nv+' ').include(' '+v+' ');},'|=':function(nv,v){return('-'+(nv||"").toUpperCase()+'-').include('-'+(v||"").toUpperCase()+'-');}},split:function(expression){var expressions=[];expression.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/,function(m){expressions.push(m[1].strip());});return expressions;},matchElements:function(elements,expression){var matches=$$(expression),h=Selector.handlers;h.mark(matches);for(var i=0,results=[],element;element=elements[i];i++)
if(element._countedByPrototype)results.push(element);h.unmark(matches);return results;},findElement:function(elements,expression,index){if(Object.isNumber(expression)){index=expression;expression=false;}
return Selector.matchElements(elements,expression||'*')[index||0];},findChildElements:function(element,expressions){expressions=Selector.split(expressions.join(','));var results=[],h=Selector.handlers;for(var i=0,l=expressions.length,selector;i<l;i++){selector=new Selector(expressions[i].strip());h.concat(results,selector.findElements(element));}
return(l>1)?h.unique(results):results;}});if(Prototype.Browser.IE){Object.extend(Selector.handlers,{concat:function(a,b){for(var i=0,node;node=b[i];i++)
if(node.tagName!=="!")a.push(node);return a;}});}
function $$(){return Selector.findChildElements(document,$A(arguments));}
var Form={reset:function(form){form=$(form);form.reset();return form;},serializeElements:function(elements,options){if(typeof options!='object')options={hash:!!options};else if(Object.isUndefined(options.hash))options.hash=true;var key,value,submitted=false,submit=options.submit;var data=elements.inject({},function(result,element){if(!element.disabled&&element.name){key=element.name;value=$(element).getValue();if(value!=null&&element.type!='file'&&(element.type!='submit'||(!submitted&&submit!==false&&(!submit||key==submit)&&(submitted=true)))){if(key in result){if(!Object.isArray(result[key]))result[key]=[result[key]];result[key].push(value);}
else result[key]=value;}}
return result;});return options.hash?data:Object.toQueryString(data);}};Form.Methods={serialize:function(form,options){return Form.serializeElements(Form.getElements(form),options);},getElements:function(form){var elements=$(form).getElementsByTagName('*'),element,arr=[],serializers=Form.Element.Serializers;for(var i=0;element=elements[i];i++){arr.push(element);}
return arr.inject([],function(elements,child){if(serializers[child.tagName.toLowerCase()])
elements.push(Element.extend(child));return elements;})},getInputs:function(form,typeName,name){form=$(form);var inputs=form.getElementsByTagName('input');if(!typeName&&!name)return $A(inputs).map(Element.extend);for(var i=0,matchingInputs=[],length=inputs.length;i<length;i++){var input=inputs[i];if((typeName&&input.type!=typeName)||(name&&input.name!=name))
continue;matchingInputs.push(Element.extend(input));}
return matchingInputs;},disable:function(form){form=$(form);Form.getElements(form).invoke('disable');return form;},enable:function(form){form=$(form);Form.getElements(form).invoke('enable');return form;},findFirstElement:function(form){var elements=$(form).getElements().findAll(function(element){return'hidden'!=element.type&&!element.disabled;});var firstByIndex=elements.findAll(function(element){return element.hasAttribute('tabIndex')&&element.tabIndex>=0;}).sortBy(function(element){return element.tabIndex}).first();return firstByIndex?firstByIndex:elements.find(function(element){return/^(?:input|select|textarea)$/i.test(element.tagName);});},focusFirstElement:function(form){form=$(form);form.findFirstElement().activate();return form;},request:function(form,options){form=$(form),options=Object.clone(options||{});var params=options.parameters,action=form.readAttribute('action')||'';if(action.blank())action=window.location.href;options.parameters=form.serialize(true);if(params){if(Object.isString(params))params=params.toQueryParams();Object.extend(options.parameters,params);}
if(form.hasAttribute('method')&&!options.method)
options.method=form.method;return new Ajax.Request(action,options);}};Form.Element={focus:function(element){$(element).focus();return element;},select:function(element){$(element).select();return element;}};Form.Element.Methods={serialize:function(element){element=$(element);if(!element.disabled&&element.name){var value=element.getValue();if(value!=undefined){var pair={};pair[element.name]=value;return Object.toQueryString(pair);}}
return'';},getValue:function(element){element=$(element);var method=element.tagName.toLowerCase();return Form.Element.Serializers[method](element);},setValue:function(element,value){element=$(element);var method=element.tagName.toLowerCase();Form.Element.Serializers[method](element,value);return element;},clear:function(element){$(element).value='';return element;},present:function(element){return $(element).value!='';},activate:function(element){element=$(element);try{element.focus();if(element.select&&(element.tagName.toLowerCase()!='input'||!(/^(?:button|reset|submit)$/i.test(element.type))))
element.select();}catch(e){}
return element;},disable:function(element){element=$(element);element.disabled=true;return element;},enable:function(element){element=$(element);element.disabled=false;return element;}};var Field=Form.Element;var $F=Form.Element.Methods.getValue;Form.Element.Serializers={input:function(element,value){switch(element.type.toLowerCase()){case'checkbox':case'radio':return Form.Element.Serializers.inputSelector(element,value);default:return Form.Element.Serializers.textarea(element,value);}},inputSelector:function(element,value){if(Object.isUndefined(value))return element.checked?element.value:null;else element.checked=!!value;},textarea:function(element,value){if(Object.isUndefined(value))return element.value;else element.value=value;},select:function(element,value){if(Object.isUndefined(value))
return this[element.type=='select-one'?'selectOne':'selectMany'](element);else{var opt,currentValue,single=!Object.isArray(value);for(var i=0,length=element.length;i<length;i++){opt=element.options[i];currentValue=this.optionValue(opt);if(single){if(currentValue==value){opt.selected=true;return;}}
else opt.selected=value.include(currentValue);}}},selectOne:function(element){var index=element.selectedIndex;return index>=0?this.optionValue(element.options[index]):null;},selectMany:function(element){var values,length=element.length;if(!length)return null;for(var i=0,values=[];i<length;i++){var opt=element.options[i];if(opt.selected)values.push(this.optionValue(opt));}
return values;},optionValue:function(opt){return Element.extend(opt).hasAttribute('value')?opt.value:opt.text;}};Abstract.TimedObserver=Class.create(PeriodicalExecuter,{initialize:function($super,element,frequency,callback){$super(callback,frequency);this.element=$(element);this.lastValue=this.getValue();},execute:function(){var value=this.getValue();if(Object.isString(this.lastValue)&&Object.isString(value)?this.lastValue!=value:String(this.lastValue)!=String(value)){this.callback(this.element,value);this.lastValue=value;}}});Form.Element.Observer=Class.create(Abstract.TimedObserver,{getValue:function(){return Form.Element.getValue(this.element);}});Form.Observer=Class.create(Abstract.TimedObserver,{getValue:function(){return Form.serialize(this.element);}});Abstract.EventObserver=Class.create({initialize:function(element,callback){this.element=$(element);this.callback=callback;this.lastValue=this.getValue();if(this.element.tagName.toLowerCase()=='form')
this.registerFormCallbacks();else
this.registerCallback(this.element);},onElementEvent:function(){var value=this.getValue();if(this.lastValue!=value){this.callback(this.element,value);this.lastValue=value;}},registerFormCallbacks:function(){Form.getElements(this.element).each(this.registerCallback,this);},registerCallback:function(element){if(element.type){switch(element.type.toLowerCase()){case'checkbox':case'radio':Event.observe(element,'click',this.onElementEvent.bind(this));break;default:Event.observe(element,'change',this.onElementEvent.bind(this));break;}}}});Form.Element.EventObserver=Class.create(Abstract.EventObserver,{getValue:function(){return Form.Element.getValue(this.element);}});Form.EventObserver=Class.create(Abstract.EventObserver,{getValue:function(){return Form.serialize(this.element);}});(function(){var Event={KEY_BACKSPACE:8,KEY_TAB:9,KEY_RETURN:13,KEY_ESC:27,KEY_LEFT:37,KEY_UP:38,KEY_RIGHT:39,KEY_DOWN:40,KEY_DELETE:46,KEY_HOME:36,KEY_END:35,KEY_PAGEUP:33,KEY_PAGEDOWN:34,KEY_INSERT:45,cache:{}};var docEl=document.documentElement;var MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED='onmouseenter'in docEl&&'onmouseleave'in docEl;var _isButton;if(Prototype.Browser.IE){var buttonMap={0:1,1:4,2:2};_isButton=function(event,code){return event.button===buttonMap[code];};}else if(Prototype.Browser.WebKit){_isButton=function(event,code){switch(code){case 0:return event.which==1&&!event.metaKey;case 1:return event.which==1&&event.metaKey;default:return false;}};}else{_isButton=function(event,code){return event.which?(event.which===code+1):(event.button===code);};}
function isLeftClick(event){return _isButton(event,0)}
function isMiddleClick(event){return _isButton(event,1)}
function isRightClick(event){return _isButton(event,2)}
function element(event){event=Event.extend(event);var node=event.target,type=event.type,currentTarget=event.currentTarget;if(currentTarget&&currentTarget.tagName){if(type==='load'||type==='error'||(type==='click'&&currentTarget.tagName.toLowerCase()==='input'&&currentTarget.type==='radio'))
node=currentTarget;}
if(node.nodeType==Node.TEXT_NODE)
node=node.parentNode;return Element.extend(node);}
function findElement(event,expression){var element=Event.element(event);if(!expression)return element;var elements=[element].concat(element.ancestors());return Selector.findElement(elements,expression,0);}
function pointer(event){return{x:pointerX(event),y:pointerY(event)};}
function pointerX(event){var docElement=document.documentElement,body=document.body||{scrollLeft:0};return event.pageX||(event.clientX+
(docElement.scrollLeft||body.scrollLeft)-
(docElement.clientLeft||0));}
function pointerY(event){var docElement=document.documentElement,body=document.body||{scrollTop:0};return event.pageY||(event.clientY+
(docElement.scrollTop||body.scrollTop)-
(docElement.clientTop||0));}
function stop(event){Event.extend(event);event.preventDefault();event.stopPropagation();event.stopped=true;}
Event.Methods={isLeftClick:isLeftClick,isMiddleClick:isMiddleClick,isRightClick:isRightClick,element:element,findElement:findElement,pointer:pointer,pointerX:pointerX,pointerY:pointerY,stop:stop};var methods=Object.keys(Event.Methods).inject({},function(m,name){m[name]=Event.Methods[name].methodize();return m;});if(Prototype.Browser.IE){function _relatedTarget(event){var element;switch(event.type){case'mouseover':element=event.fromElement;break;case'mouseout':element=event.toElement;break;default:return null;}
return Element.extend(element);}
Object.extend(methods,{stopPropagation:function(){this.cancelBubble=true},preventDefault:function(){this.returnValue=false},inspect:function(){return'[object Event]'}});Event.extend=function(event,element){if(!event)return false;if(event._extendedByPrototype)return event;event._extendedByPrototype=Prototype.emptyFunction;var pointer=Event.pointer(event);Object.extend(event,{target:event.srcElement||element,relatedTarget:_relatedTarget(event),pageX:pointer.x,pageY:pointer.y});return Object.extend(event,methods);};}else{Event.prototype=window.Event.prototype||document.createEvent('HTMLEvents').__proto__;Object.extend(Event.prototype,methods);Event.extend=Prototype.K;}
function _createResponder(element,eventName,handler){var registry=Element.retrieve(element,'prototype_event_registry');if(Object.isUndefined(registry)){CACHE.push(element);registry=Element.retrieve(element,'prototype_event_registry',$H());}
var respondersForEvent=registry.get(eventName);if(Object.isUndefined(respondersForEvent)){respondersForEvent=[];registry.set(eventName,respondersForEvent);}
if(respondersForEvent.pluck('handler').include(handler))return false;var responder;if(eventName.include(":")){responder=function(event){if(Object.isUndefined(event.eventName))
return false;if(event.eventName!==eventName)
return false;Event.extend(event,element);handler.call(element,event);};}else{if(!MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED&&(eventName==="mouseenter"||eventName==="mouseleave")){if(eventName==="mouseenter"||eventName==="mouseleave"){responder=function(event){Event.extend(event,element);var parent=event.relatedTarget;while(parent&&parent!==element){try{parent=parent.parentNode;}
catch(e){parent=element;}}
if(parent===element)return;handler.call(element,event);};}}else{responder=function(event){Event.extend(event,element);handler.call(element,event);};}}
responder.handler=handler;respondersForEvent.push(responder);return responder;}
function _destroyCache(){for(var i=0,length=CACHE.length;i<length;i++){Event.stopObserving(CACHE[i]);CACHE[i]=null;}}
var CACHE=[];if(Prototype.Browser.IE)
window.attachEvent('onunload',_destroyCache);if(Prototype.Browser.WebKit)
window.addEventListener('unload',Prototype.emptyFunction,false);var _getDOMEventName=Prototype.K;if(!MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED){_getDOMEventName=function(eventName){var translations={mouseenter:"mouseover",mouseleave:"mouseout"};return eventName in translations?translations[eventName]:eventName;};}
function observe(element,eventName,handler){element=$(element);var responder=_createResponder(element,eventName,handler);if(!responder)return element;if(eventName.include(':')){if(element.addEventListener)
element.addEventListener("dataavailable",responder,false);else{element.attachEvent("ondataavailable",responder);element.attachEvent("onfilterchange",responder);}}else{var actualEventName=_getDOMEventName(eventName);if(element.addEventListener)
element.addEventListener(actualEventName,responder,false);else
element.attachEvent("on"+actualEventName,responder);}
return element;}
function stopObserving(element,eventName,handler){element=$(element);var registry=Element.retrieve(element,'prototype_event_registry');if(Object.isUndefined(registry))return element;if(eventName&&!handler){var responders=registry.get(eventName);if(Object.isUndefined(responders))return element;responders.each(function(r){Element.stopObserving(element,eventName,r.handler);});return element;}else if(!eventName){registry.each(function(pair){var eventName=pair.key,responders=pair.value;responders.each(function(r){Element.stopObserving(element,eventName,r.handler);});});return element;}
var responders=registry.get(eventName);if(!responders)return;var responder=responders.find(function(r){return r.handler===handler;});if(!responder)return element;var actualEventName=_getDOMEventName(eventName);if(eventName.include(':')){if(element.removeEventListener)
element.removeEventListener("dataavailable",responder,false);else{element.detachEvent("ondataavailable",responder);element.detachEvent("onfilterchange",responder);}}else{if(element.removeEventListener)
element.removeEventListener(actualEventName,responder,false);else
element.detachEvent('on'+actualEventName,responder);}
registry.set(eventName,responders.without(responder));return element;}
function fire(element,eventName,memo,bubble){element=$(element);if(Object.isUndefined(bubble))
bubble=true;if(element==document&&document.createEvent&&!element.dispatchEvent)
element=document.documentElement;var event;if(document.createEvent){event=document.createEvent('HTMLEvents');event.initEvent('dataavailable',true,true);}else{event=document.createEventObject();event.eventType=bubble?'ondataavailable':'onfilterchange';}
event.eventName=eventName;event.memo=memo||{};if(document.createEvent)
element.dispatchEvent(event);else
element.fireEvent(event.eventType,event);return Event.extend(event);}
Object.extend(Event,Event.Methods);Object.extend(Event,{fire:fire,observe:observe,stopObserving:stopObserving});Element.addMethods({fire:fire,observe:observe,stopObserving:stopObserving});Object.extend(document,{fire:fire.methodize(),observe:observe.methodize(),stopObserving:stopObserving.methodize(),loaded:false});if(window.Event)Object.extend(window.Event,Event);else window.Event=Event;})();(function(){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();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);

/*  Prototype JavaScript framework, version 1.7.1
 *  (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: '1.7.1',

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

  BrowserFeatures: {
    XPath: !!document.evaluate,

    SelectorsAPI: !!document.querySelector,

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

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

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

      div = form = null;

      return isSupported;
    })()
  },

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

  emptyFunction: function() { },

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

if (Prototype.Browser.MobileSafari)
  Prototype.BrowserFeatures.SpecificElementExtensions = false;
/* Based on Alex Arnell's inheritance implementation. */

var Class = (function() {

  var IS_DONTENUM_BUGGY = (function(){
    for (var p in { toString: 1 }) {
      if (p === 'toString') return false;
    }
    return true;
  })();

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

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

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

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

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

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

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

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

    if (IS_DONTENUM_BUGGY) {
      if (source.toString != Object.prototype.toString)
        properties.push("toString");
      if (source.valueOf != Object.prototype.valueOf)
        properties.push("valueOf");
    }

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

        value.valueOf = (function(method) {
          return function() { return method.valueOf.call(method); };
        })(method);

        value.toString = (function(method) {
          return function() { return method.toString.call(method); };
        })(method);
      }
      this.prototype[property] = value;
    }

    return this;
  }

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

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



  var DONT_ENUMS = ['toString', 'toLocaleString', 'valueOf',
   'hasOwnProperty', 'isPrototypeOf', 'propertyIsEnumerable', 'constructor'];

  var IS_DONTENUM_BUGGY = (function(){
    for (var p in { toString: 1 }) {
      if (p === 'toString') return false;
    }
    return true;
  })();

  function Type(o) {
    switch(o) {
      case null: return NULL_TYPE;
      case (void 0): return UNDEFINED_TYPE;
    }
    var type = typeof o;
    switch(type) {
      case 'boolean': return BOOLEAN_TYPE;
      case 'number':  return NUMBER_TYPE;
      case 'string':  return STRING_TYPE;
    }
    return OBJECT_TYPE;
  }

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

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

  function toJSON(value) {
    return Str('', { '': value }, []);
  }

  function Str(key, holder, stack) {
    var value = holder[key];
    if (Type(value) === OBJECT_TYPE && typeof value.toJSON === 'function') {
      value = value.toJSON(key);
    }

    var _class = _toString.call(value);

    switch (_class) {
      case NUMBER_CLASS:
      case BOOLEAN_CLASS:
      case STRING_CLASS:
        value = value.valueOf();
    }

    switch (value) {
      case null: return 'null';
      case true: return 'true';
      case false: return 'false';
    }

    var type = typeof value;
    switch (type) {
      case 'string':
        return value.inspect(true);
      case 'number':
        return isFinite(value) ? String(value) : 'null';
      case 'object':

        for (var i = 0, length = stack.length; i < length; i++) {
          if (stack[i] === value) {
            throw new TypeError("Cyclic reference to '" + value + "' in object");
          }
        }
        stack.push(value);

        var partial = [];
        if (_class === ARRAY_CLASS) {
          for (var i = 0, length = value.length; i < length; i++) {
            var str = Str(i, value, stack);
            partial.push(typeof str === 'undefined' ? 'null' : str);
          }
          partial = '[' + partial.join(',') + ']';
        } else {
          var keys = Object.keys(value);
          for (var i = 0, length = keys.length; i < length; i++) {
            var key = keys[i], str = Str(key, value, stack);
            if (typeof str !== "undefined") {
               partial.push(key.inspect(true)+ ':' + str);
             }
          }
          partial = '{' + partial.join(',') + '}';
        }
        stack.pop();
        return partial;
    }
  }

  function stringify(object) {
    return JSON.stringify(object);
  }

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

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

  function keys(object) {
    if (Type(object) !== OBJECT_TYPE) { throw new TypeError(); }
    var results = [];
    for (var property in object) {
      if (_hasOwnProperty.call(object, property))
        results.push(property);
    }

    if (IS_DONTENUM_BUGGY) {
      for (var i = 0; property = DONT_ENUMS[i]; i++) {
        if (_hasOwnProperty.call(object, property))
          results.push(property);
      }
    }

    return results;
  }

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

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

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

  function isArray(object) {
    return _toString.call(object) === ARRAY_CLASS;
  }

  var hasNativeIsArray = (typeof Array.isArray == 'function')
    && Array.isArray([]) && !Array.isArray({});

  if (hasNativeIsArray) {
    isArray = Array.isArray;
  }

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

  function isFunction(object) {
    return _toString.call(object) === FUNCTION_CLASS;
  }

  function isString(object) {
    return _toString.call(object) === STRING_CLASS;
  }

  function isNumber(object) {
    return _toString.call(object) === NUMBER_CLASS;
  }

  function isDate(object) {
    return _toString.call(object) === DATE_CLASS;
  }

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

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

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

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

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


  function bind(context) {
    if (arguments.length < 2 && Object.isUndefined(arguments[0]))
      return this;

    if (!Object.isFunction(this))
      throw new TypeError("The object is not callable.");

    var nop = function() {};
    var __method = this, args = slice.call(arguments, 1);

    var bound = function() {
      var a = merge(args, arguments), c = context;
      var c = this instanceof bound ? this : context;
      return __method.apply(c, a);
    };

    nop.prototype   = this.prototype;
    bound.prototype = new nop();

    return bound;
  }

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

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

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

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

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

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

  var extensions = {
    argumentNames:       argumentNames,
    bindAsEventListener: bindAsEventListener,
    curry:               curry,
    delay:               delay,
    defer:               defer,
    wrap:                wrap,
    methodize:           methodize
  };

  if (!Function.prototype.bind)
    extensions.bind = bind;

  return extensions;
})());



(function(proto) {


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


  function toJSON() {
    return this.toISOString();
  }

  if (!proto.toISOString) proto.toISOString = toISOString;
  if (!proto.toJSON) proto.toJSON = toJSON;

})(Date.prototype);


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

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

    this.registerCallback();
  },

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

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

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

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

Object.extend(String.prototype, (function() {
  var NATIVE_JSON_PARSE_SUPPORT = window.JSON &&
    typeof JSON.parse === 'function' &&
    JSON.parse('{"test": true}').test;

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

  function 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) {
    try {
      this._each(iterator, context);
    } catch (e) {
      if (e != $break) throw e;
    }
    return this;
  }

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

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

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

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

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

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

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

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

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

  function include(object) {
    if (Object.isFunction(this.indexOf))
      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, this);
    }, this);
    return memo;
  }

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

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

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

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

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

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

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

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

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

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

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

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









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

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


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

Array.from = $A;


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

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

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

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

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

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

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

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

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

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

  function intersect(array) {
    return this.uniq().findAll(function(item) {
      return array.indexOf(item) !== -1;
    });
  }


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

  function size() {
    return this.length;
  }

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

  function indexOf(item, i) {
    if (this == null) throw new TypeError();

    var array = Object(this), length = array.length >>> 0;
    if (length === 0) return -1;

    i = Number(i);
    if (isNaN(i)) {
      i = 0;
    } else if (i !== 0 && isFinite(i)) {
      i = (i > 0 ? 1 : -1) * Math.floor(Math.abs(i));
    }

    if (i > length) return -1;

    var k = i >= 0 ? i : Math.max(length - Math.abs(i), 0);
    for (; k < length; k++)
      if (k in array && array[k] === item) return k;
    return -1;
  }


  function lastIndexOf(item, i) {
    if (this == null) throw new TypeError();

    var array = Object(this), length = array.length >>> 0;
    if (length === 0) return -1;

    if (!Object.isUndefined(i)) {
      i = Number(i);
      if (isNaN(i)) {
        i = 0;
      } else if (i !== 0 && isFinite(i)) {
        i = (i > 0 ? 1 : -1) * Math.floor(Math.abs(i));
      }
    } else {
      i = length;
    }

    var k = i >= 0 ? Math.min(i, length - 1) :
     length - Math.abs(i);

    for (; k >= 0; k--)
      if (k in array && array[k] === item) return k;
    return -1;
  }

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


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


  function map(iterator) {
    if (this == null) throw new TypeError();
    iterator = iterator || Prototype.K;

    var object = Object(this);
    var results = [], context = arguments[1], n = 0;

    for (var i = 0, length = object.length >>> 0; i < length; i++) {
      if (i in object) {
        results[n] = iterator.call(context, object[i], i, object);
      }
      n++;
    }
    results.length = n;
    return results;
  }

  if (arrayProto.map) {
    map = wrapNative(Array.prototype.map);
  }

  function filter(iterator) {
    if (this == null || !Object.isFunction(iterator))
      throw new TypeError();

    var object = Object(this);
    var results = [], context = arguments[1], value;

    for (var i = 0, length = object.length >>> 0; i < length; i++) {
      if (i in object) {
        value = object[i];
        if (iterator.call(context, value, i, object)) {
          results.push(value);
        }
      }
    }
    return results;
  }

  if (arrayProto.filter) {
    filter = Array.prototype.filter;
  }

  function some(iterator) {
    if (this == null) throw new TypeError();
    iterator = iterator || Prototype.K;
    var context = arguments[1];

    var object = Object(this);
    for (var i = 0, length = object.length >>> 0; i < length; i++) {
      if (i in object && iterator.call(context, object[i], i, object)) {
        return true;
      }
    }

    return false;
  }

  if (arrayProto.some) {
    var some = wrapNative(Array.prototype.some);
  }


  function every(iterator) {
    if (this == null) throw new TypeError();
    iterator = iterator || Prototype.K;
    var context = arguments[1];

    var object = Object(this);
    for (var i = 0, length = object.length >>> 0; i < length; i++) {
      if (i in object && !iterator.call(context, object[i], i, object)) {
        return false;
      }
    }

    return true;
  }

  if (arrayProto.every) {
    var every = wrapNative(Array.prototype.every);
  }

  var _reduce = arrayProto.reduce;
  function inject(memo, iterator) {
    iterator = iterator || Prototype.K;
    var context = arguments[2];
    return _reduce.call(this, iterator.bind(context), memo);
  }

  if (!arrayProto.reduce) {
    var inject = Enumerable.inject;
  }

  Object.extend(arrayProto, Enumerable);

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

  Object.extend(arrayProto, {
    _each:     _each,

    map:       map,
    collect:   map,
    select:    filter,
    filter:    filter,
    findAll:   filter,
    some:      some,
    any:       some,
    every:     every,
    all:       every,
    inject:    inject,

    clear:     clear,
    first:     first,
    last:      last,
    compact:   compact,
    flatten:   flatten,
    without:   without,
    reverse:   reverse,
    uniq:      uniq,
    intersect: intersect,
    clone:     clone,
    toArray:   clone,
    size:      size,
    inspect:   inspect
  });

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

  if (CONCAT_ARGUMENTS_BUGGY) arrayProto.concat = concat;

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

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


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

    var value = String.interpret(value);

    value = value.gsub(/(\r)?\n/, '\r\n');
    value = encodeURIComponent(value);
    value = value.gsub(/%20/, '+');
    return key + '=' + value;
  }

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

      if (values && typeof values == 'object') {
        if (Object.isArray(values)) {
          var queryValues = [];
          for (var i = 0, len = values.length, value; i < len; i++) {
            value = values[i];
            queryValues.push(toQueryPair(key, value));
          }
          return results.concat(queryValues);
        }
      } else results.push(toQueryPair(key, values));
      return results;
    }).join('&');
  }

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

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

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

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

  function succ() {
    return this + 1;
  }

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

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

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

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

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

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

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

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

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

  function _each(iterator, context) {
    var value = this.start;
    while (this.include(value)) {
      iterator.call(context, 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 Abstract = { };


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

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

    return returnValue;
  }
};

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

  activeRequestCount: 0
};

Ajax.Responders = {
  responders: [],

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

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

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

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

Object.extend(Ajax.Responders, Enumerable);

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

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

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

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

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

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

    if (params && this.method === 'get') {
      this.url += (this.url.include('?') ? '&' : '?') + params;
    }

    this.parameters = params.toQueryParams();

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  success: function() {
    var status = this.getStatus();
    return !status || (status >= 200 && status < 300) || status == 304;
  },

  getStatus: function() {
    try {
      if (this.transport.status === 1223) return 204;
      return this.transport.status || 0;
    } catch (e) { return 0 }
  },

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

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

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

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

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

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

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

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

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

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








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

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

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

  status:      0,

  statusText: '',

  getStatus: Ajax.Request.prototype.getStatus,

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

  getHeader: Ajax.Request.prototype.getHeader,

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

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

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

  _getHeaderJSON: function() {
    var json = this.getHeader('X-JSON');
    if (!json) return null;

    try {
      json = decodeURIComponent(escape(json));
    } catch(e) {
    }

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

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

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

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

    $super(url, options);
  },

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

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

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

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

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

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

    this.start();
  },

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

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

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

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

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

(function(GLOBAL) {

  var UNDEFINED;
  var SLICE = Array.prototype.slice;

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


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

    if (Object.isString(element))
      element = document.getElementById(element);
    return Element.extend(element);
  }

  GLOBAL.$ = $;


  if (!GLOBAL.Node) GLOBAL.Node = {};

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

  var ELEMENT_CACHE = {};

  function shouldUseCreationCache(tagName, attributes) {
    if (tagName === 'select') return false;
    if ('type' in attributes) return false;
    return true;
  }

  var HAS_EXTENDED_CREATE_ELEMENT_SYNTAX = Prototype.Browser.IE && (function(){
    try {
      var el = document.createElement('<input name="x">');
      return el.tagName.toLowerCase() === 'input' && el.name === 'x';
    }
    catch(err) {
      return false;
    }
  })();


  var oldElement = GLOBAL.Element;
  function Element(tagName, attributes) {
    attributes = attributes || {};
    tagName = tagName.toLowerCase();

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

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

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

    return Element.writeAttribute(node, attributes);
  }

  GLOBAL.Element = Element;

  Object.extend(GLOBAL.Element, oldElement || {});
  if (oldElement) GLOBAL.Element.prototype = oldElement.prototype;

  Element.Methods = { ByTag: {}, Simulated: {} };

  var methods = {};

  var INSPECT_ATTRIBUTES = { id: 'id', className: 'class' };
  function inspect(element) {
    element = $(element);
    var result = '<' + element.tagName.toLowerCase();

    var attribute, value;
    for (var property in INSPECT_ATTRIBUTES) {
      attribute = INSPECT_ATTRIBUTES[property];
      value = (element[property] || '').toString();
      if (value) result += ' ' + attribute + '=' + value.inspect(true);
    }

    return result + '>';
  }

  methods.inspect = inspect;


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

  function toggle(element, bool) {
    element = $(element);
    if (Object.isUndefined(bool))
      bool = !Element.visible(element);
    Element[bool ? 'show' : 'hide'](element);

    return element;
  }

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

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


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


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

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

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

  var LINK_ELEMENT_INNERHTML_BUGGY = (function() {
    try {
      var el = document.createElement('div');
      el.innerHTML = "<link />";
      var isBuggy = (el.childNodes.length === 0);
      el = null;
      return isBuggy;
    } catch(e) {
      return true;
    }
  })();

  var ANY_INNERHTML_BUGGY = SELECT_ELEMENT_INNERHTML_BUGGY ||
   TABLE_ELEMENT_INNERHTML_BUGGY || LINK_ELEMENT_INNERHTML_BUGGY;

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

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

    var descendants = element.getElementsByTagName('*'),
     i = descendants.length;
    while (i--) purgeElement(descendants[i]);

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

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


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

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

    if (ANY_INNERHTML_BUGGY) {
      if (tagName in INSERTION_TRANSLATIONS.tags) {
        while (element.firstChild)
          element.removeChild(element.firstChild);

        var nodes = getContentFromAnonymousElement(tagName, content.stripScripts());
        for (var i = 0, node; node = nodes[i]; i++)
          element.appendChild(node);

      } else if (LINK_ELEMENT_INNERHTML_BUGGY && Object.isString(content) && content.indexOf('<link') > -1) {
        while (element.firstChild)
          element.removeChild(element.firstChild);

        var nodes = getContentFromAnonymousElement(tagName,
         content.stripScripts(), true);

        for (var i = 0, node; node = nodes[i]; i++)
          element.appendChild(node);
      } else {
        element.innerHTML = content.stripScripts();
      }
    } else {
      element.innerHTML = content.stripScripts();
    }

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

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

    if (content && content.toElement) {
      content = content.toElement();
    } else if (!Object.isElement(content)) {
      content = Object.toHTML(content);
      var range = element.ownerDocument.createRange();
      range.selectNode(element);
      content.evalScripts.bind(content).defer();
      content = range.createContextualFragment(content.stripScripts());
    }

    element.parentNode.replaceChild(content, element);
    return element;
  }

  var INSERTION_TRANSLATIONS = {
    before: function(element, node) {
      element.parentNode.insertBefore(node, element);
    },
    top: function(element, node) {
      element.insertBefore(node, element.firstChild);
    },
    bottom: function(element, node) {
      element.appendChild(node);
    },
    after: function(element, node) {
      element.parentNode.insertBefore(node, element.nextSibling);
    },

    tags: {
      TABLE:  ['<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]
    }
  };

  var tags = INSERTION_TRANSLATIONS.tags;

  Object.extend(tags, {
    THEAD: tags.TBODY,
    TFOOT: tags.TBODY,
    TH:    tags.TD
  });

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

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

    if (tagName in INSERTION_TRANSLATIONS.tags) {
      var nextSibling = Element.next(element);
      var fragments = getContentFromAnonymousElement(
       tagName, content.stripScripts());

      parent.removeChild(element);

      var iterator;
      if (nextSibling)
        iterator = function(node) { parent.insertBefore(node, nextSibling) };
      else
        iterator = function(node) { parent.appendChild(node); }

      fragments.each(iterator);
    } else {
      element.outerHTML = content.stripScripts();
    }

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

  if ('outerHTML' in document.documentElement)
    replace = replace_IE;

  function isContent(content) {
    if (Object.isUndefined(content) || content === null) return false;

    if (Object.isString(content) || Object.isNumber(content)) return true;
    if (Object.isElement(content)) return true;
    if (content.toElement || content.toHTML) return true;

    return false;
  }

  function insertContentAt(element, content, position) {
    position   = position.toLowerCase();
    var method = INSERTION_TRANSLATIONS[position];

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

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

    var childNodes = getContentFromAnonymousElement(tagName, content.stripScripts());

    if (position === 'top' || position === 'after') childNodes.reverse();

    for (var i = 0, node; node = childNodes[i]; i++)
      method(element, node);

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

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

    if (isContent(insertions))
      insertions = { bottom: insertions };

    for (var position in insertions)
      insertContentAt(element, insertions[position], position);

    return element;
  }

  function wrap(element, wrapper, attributes) {
    element = $(element);

    if (Object.isElement(wrapper)) {
      $(wrapper).writeAttribute(attributes || {});
    } else if (Object.isString(wrapper)) {
      wrapper = new Element(wrapper, attributes);
    } else {
      wrapper = new Element('div', wrapper);
    }

    if (element.parentNode)
      element.parentNode.replaceChild(wrapper, element);

    wrapper.appendChild(element);

    return wrapper;
  }

  function cleanWhitespace(element) {
    element = $(element);
    var node = element.firstChild;

    while (node) {
      var nextNode = node.nextSibling;
      if (node.nodeType === Node.TEXT_NODE && !/\S/.test(node.nodeValue))
        element.removeChild(node);
      node = nextNode;
    }
    return element;
  }

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

  function getContentFromAnonymousElement(tagName, html, force) {
    var t = INSERTION_TRANSLATIONS.tags[tagName], div = DIV;

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

    if (workaround) {
      div.innerHTML = '&#160;' + t[0] + html + t[1];
      div.removeChild(div.firstChild);
      for (var i = t[2]; i--; )
        div = div.firstChild;
    } else {
      div.innerHTML = html;
    }

    return $A(div.childNodes);
  }

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

  function purgeElement(element) {
    var uid = getUniqueElementID(element);
    if (uid) {
      Element.stopObserving(element);
      if (!HAS_UNIQUE_ID_PROPERTY)
        element._prototypeUID = UNDEFINED;
      delete Element.Storage[uid];
    }
  }

  function purgeCollection(elements) {
    var i = elements.length;
    while (i--)
      purgeElement(elements[i]);
  }

  function purgeCollection_IE(elements) {
    var i = elements.length, element, uid;
    while (i--) {
      element = elements[i];
      uid = getUniqueElementID(element);
      delete Element.Storage[uid];
      delete Event.cache[uid];
    }
  }

  if (HAS_UNIQUE_ID_PROPERTY) {
    purgeCollection = purgeCollection_IE;
  }


  function purge(element) {
    if (!(element = $(element))) return;
    purgeElement(element);

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

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

    return null;
  }

  Object.extend(methods, {
    remove:  remove,
    update:  update,
    replace: replace,
    insert:  insert,
    wrap:    wrap,
    cleanWhitespace: cleanWhitespace,
    empty:   empty,
    clone:   clone,
    purge:   purge
  });



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

    while (element = element[property]) {
      if (element.nodeType === Node.ELEMENT_NODE)
        elements.push(Element.extend(element));

      if (elements.length === maximumLength) break;
    }

    return elements;
  }


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

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

  function firstDescendant(element) {
    element = $(element).firstChild;
    while (element && element.nodeType !== Node.ELEMENT_NODE)
      element = element.nextSibling;

    return $(element);
  }

  function immediateDescendants(element) {
    var results = [], child = $(element).firstChild;

    while (child) {
      if (child.nodeType === Node.ELEMENT_NODE)
        results.push(Element.extend(child));

      child = child.nextSibling;
    }

    return results;
  }

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

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

  function siblings(element) {
    element = $(element);
    var previous = previousSiblings(element),
     next = nextSiblings(element);
    return previous.reverse().concat(next);
  }

  function match(element, selector) {
    element = $(element);

    if (Object.isString(selector))
      return Prototype.Selector.match(element, selector);

    return selector.match(element);
  }


  function _recursivelyFind(element, property, expression, index) {
    element = $(element), expression = expression || 0, index = index || 0;
    if (Object.isNumber(expression)) {
      index = expression, expression = null;
    }

    while (element = element[property]) {
      if (element.nodeType !== 1) continue;
      if (expression && !Prototype.Selector.match(element, expression))
        continue;
      if (--index >= 0) continue;

      return Element.extend(element);
    }
  }


  function up(element, expression, index) {
    element = $(element);

    if (arguments.length === 1) return $(element.parentNode);
    return _recursivelyFind(element, 'parentNode', expression, index);
  }

  function down(element, expression, index) {
    element = $(element), expression = expression || 0, index = index || 0;

    if (Object.isNumber(expression))
      index = expression, expression = '*';

    var node = Prototype.Selector.select(expression, element)[index];
    return Element.extend(node);
  }

  function previous(element, expression, index) {
    return _recursivelyFind(element, 'previousSibling', expression, index);
  }

  function next(element, expression, index) {
    return _recursivelyFind(element, 'nextSibling', expression, index);
  }

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

  function adjacent(element) {
    element = $(element);
    var expressions = SLICE.call(arguments, 1).join(', ');
    var siblings = Element.siblings(element), results = [];
    for (var i = 0, sibling; sibling = siblings[i]; i++) {
      if (Prototype.Selector.match(sibling, expressions))
        results.push(sibling);
    }

    return results;
  }

  function descendantOf_DOM(element, ancestor) {
    element = $(element), ancestor = $(ancestor);
    while (element = element.parentNode)
      if (element === ancestor) return true;
    return false;
  }

  function descendantOf_contains(element, ancestor) {
    element = $(element), ancestor = $(ancestor);
    if (!ancestor.contains) return descendantOf_DOM(element, ancestor);
    return ancestor.contains(element) && ancestor !== element;
  }

  function descendantOf_compareDocumentPosition(element, ancestor) {
    element = $(element), ancestor = $(ancestor);
    return (element.compareDocumentPosition(ancestor) & 8) === 8;
  }

  var descendantOf;
  if (DIV.compareDocumentPosition) {
    descendantOf = descendantOf_compareDocumentPosition;
  } else if (DIV.contains) {
    descendantOf = descendantOf_contains;
  } else {
    descendantOf = descendantOf_DOM;
  }


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

    getElementsBySelector: select,

    childElements:         immediateDescendants
  });


  var idCounter = 1;
  function identify(element) {
    element = $(element);
    var id = Element.readAttribute(element, 'id');
    if (id) return id;

    do { id = 'anonymous_element_' + idCounter++ } while ($(id));

    Element.writeAttribute(element, 'id', id);
    return id;
  }


  function readAttribute(element, name) {
    return $(element).getAttribute(name);
  }

  function readAttribute_IE(element, name) {
    element = $(element);

    var table = ATTRIBUTE_TRANSLATIONS.read;
    if (table.values[name])
      return table.values[name](element, name);

    if (table.names[name]) name = table.names[name];

    if (name.include(':')) {
      if (!element.attributes || !element.attributes[name]) return null;
      return element.attributes[name].value;
    }

    return element.getAttribute(name);
  }

  function readAttribute_Opera(element, name) {
    if (name === 'title') return element.title;
    return element.getAttribute(name);
  }

  var PROBLEMATIC_ATTRIBUTE_READING = (function() {
    DIV.setAttribute('onclick', Prototype.emptyFunction);
    var value = DIV.getAttribute('onclick');
    var isFunction = (typeof value === 'function');
    DIV.removeAttribute('onclick');
    return isFunction;
  })();

  if (PROBLEMATIC_ATTRIBUTE_READING) {
    readAttribute = readAttribute_IE;
  } else if (Prototype.Browser.Opera) {
    readAttribute = readAttribute_Opera;
  }


  function writeAttribute(element, name, value) {
    element = $(element);
    var attributes = {}, table = ATTRIBUTE_TRANSLATIONS.write;

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

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

    return element;
  }

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

  GLOBAL.Element.Methods.Simulated.hasAttribute = hasAttribute;

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

  var regExpCache = {};
  function getRegExpForClassName(className) {
    if (regExpCache[className]) return regExpCache[className];

    var re = new RegExp("(^|\\s+)" + className + "(\\s+|$)");
    regExpCache[className] = re;
    return re;
  }

  function hasClassName(element, className) {
    if (!(element = $(element))) return;

    var elementClassName = element.className;

    if (elementClassName.length === 0) return false;
    if (elementClassName === className) return true;

    return getRegExpForClassName(className).test(elementClassName);
  }

  function addClassName(element, className) {
    if (!(element = $(element))) return;

    if (!hasClassName(element, className))
      element.className += (element.className ? ' ' : '') + className;

    return element;
  }

  function removeClassName(element, className) {
    if (!(element = $(element))) return;

    element.className = element.className.replace(
     getRegExpForClassName(className), ' ').strip();

    return element;
  }

  function toggleClassName(element, className, bool) {
    if (!(element = $(element))) return;

    if (Object.isUndefined(bool))
      bool = !hasClassName(element, className);

    var method = Element[bool ? 'addClassName' : 'removeClassName'];
    return method(element, className);
  }

  var ATTRIBUTE_TRANSLATIONS = {};

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

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

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

  function _getAttr(element, attribute) {
    return element.getAttribute(attribute);
  }

  function _getAttr2(element, attribute) {
    return element.getAttribute(attribute, 2);
  }

  function _getAttrNode(element, attribute) {
    var node = element.getAttributeNode(attribute);
    return node ? node.value : '';
  }

  function _getFlag(element, attribute) {
    return $(element).hasAttribute(attribute) ? attribute : null;
  }

  DIV.onclick = Prototype.emptyFunction;
  var onclickValue = DIV.getAttribute('onclick');

  var _getEv;

  if (String(onclickValue).indexOf('{') > -1) {
    _getEv = function(element, attribute) {
      var value = element.getAttribute(attribute);
      if (!value) return null;
      value = value.toString();
      value = value.split('{')[1];
      value = value.split('}')[0];
      return value.strip();
    };
  }
  else if (onclickValue === '') {
    _getEv = function(element, attribute) {
      var value = element.getAttribute(attribute);
      if (!value) return null;
      return value.strip();
    };
  }

  ATTRIBUTE_TRANSLATIONS.read = {
    names: {
      'class':     classProp,
      'className': classProp,
      'for':       forProp,
      'htmlFor':   forProp
    },

    values: {
      style: function(element) {
        return element.style.cssText.toLowerCase();
      },
      title: function(element) {
        return element.title;
      }
    }
  };

  ATTRIBUTE_TRANSLATIONS.write = {
    names: {
      className:   'class',
      htmlFor:     'for',
      cellpadding: 'cellPadding',
      cellspacing: 'cellSpacing'
    },

    values: {
      checked: function(element, value) {
        element.checked = !!value;
      },

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

  ATTRIBUTE_TRANSLATIONS.has = { names: {} };

  Object.extend(ATTRIBUTE_TRANSLATIONS.write.names,
   ATTRIBUTE_TRANSLATIONS.read.names);

  var CAMEL_CASED_ATTRIBUTE_NAMES = $w('colSpan rowSpan vAlign dateTime ' +
   'accessKey tabIndex encType maxLength readOnly longDesc frameBorder');

  for (var i = 0, attr; attr = CAMEL_CASED_ATTRIBUTE_NAMES[i]; i++) {
    ATTRIBUTE_TRANSLATIONS.write.names[attr.toLowerCase()] = attr;
    ATTRIBUTE_TRANSLATIONS.has.names[attr.toLowerCase()]   = attr;
  }

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


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


  function normalizeStyleName(style) {
    if (style === 'float' || style === 'styleFloat')
      return 'cssFloat';
    return style.camelize();
  }

  function normalizeStyleName_IE(style) {
    if (style === 'float' || style === 'cssFloat')
      return 'styleFloat';
    return style.camelize();
  }

  function setStyle(element, styles) {
    element = $(element);
    var elementStyle = element.style, match;

    if (Object.isString(styles)) {
      elementStyle.cssText += ';' + styles;
      if (styles.include('opacity')) {
        var opacity = styles.match(/opacity:\s*(\d?\.?\d*)/)[1];
        Element.setOpacity(element, opacity);
      }
      return element;
    }

    for (var property in styles) {
      if (property === 'opacity') {
        Element.setOpacity(element, styles[property]);
      } else {
        var value = styles[property];
        if (property === 'float' || property === 'cssFloat') {
          property = Object.isUndefined(elementStyle.styleFloat) ?
           'cssFloat' : 'styleFloat';
        }
        elementStyle[property] = value;
      }
    }

    return element;
  }


  function getStyle(element, style) {
    element = $(element);
    style = normalizeStyleName(style);

    var value = element.style[style];
    if (!value || value === 'auto') {
      var css = document.defaultView.getComputedStyle(element, null);
      value = css ? css[style] : null;
    }

    if (style === 'opacity') return value ? parseFloat(value) : 1.0;
    return value === 'auto' ? null : value;
  }

  function getStyle_Opera(element, style) {
    switch (style) {
      case 'height': case 'width':
        if (!Element.visible(element)) return null;

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

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

        return Element.measure(element, style);

      default: return getStyle(element, style);
    }
  }

  function getStyle_IE(element, style) {
    element = $(element);
    style = normalizeStyleName_IE(style);

    var value = element.style[style];
    if (!value && element.currentStyle) {
      value = element.currentStyle[style];
    }

    if (style === 'opacity' && !STANDARD_CSS_OPACITY_SUPPORTED)
      return getOpacity_IE(element);

    if (value === 'auto') {
      if ((style === 'width' || style === 'height') && Element.visible(element))
        return Element.measure(element, style) + 'px';
      return null;
    }

    return value;
  }

  function stripAlphaFromFilter_IE(filter) {
    return (filter || '').replace(/alpha\([^\)]*\)/gi, '');
  }

  function hasLayout_IE(element) {
    if (!element.currentStyle.hasLayout)
      element.style.zoom = 1;
    return element;
  }

  var STANDARD_CSS_OPACITY_SUPPORTED = (function() {
    DIV.style.cssText = "opacity:.55";
    return /^0.55/.test(DIV.style.opacity);
  })();

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

  function setOpacity_IE(element, value) {
    if (STANDARD_CSS_OPACITY_SUPPORTED)
      return setOpacity(element, value);

    element = hasLayout_IE($(element));
    var filter = Element.getStyle(element, 'filter'),
     style = element.style;

    if (value == 1 || value === '') {
      filter = stripAlphaFromFilter_IE(filter);
      if (filter) style.filter = filter;
      else style.removeAttribute('filter');
      return element;
    }

    if (value < 0.00001) value = 0;

    style.filter = stripAlphaFromFilter_IE(filter) +
     'alpha(opacity=' + (value * 100) + ')';

    return element;
  }


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

  function getOpacity_IE(element) {
    if (STANDARD_CSS_OPACITY_SUPPORTED)
      return getOpacity(element);

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


  Object.extend(methods, {
    setStyle:   setStyle,
    getStyle:   getStyle,
    setOpacity: setOpacity,
    getOpacity: getOpacity
  });

  if ('styleFloat' in DIV.style) {
    methods.getStyle = getStyle_IE;
    methods.setOpacity = setOpacity_IE;
    methods.getOpacity = getOpacity_IE;
  }

  var UID = 0;

  GLOBAL.Element.Storage = { UID: 1 };

  function getUniqueElementID(element) {
    if (element === window) return 0;

    if (typeof element._prototypeUID === 'undefined')
      element._prototypeUID = Element.Storage.UID++;
    return element._prototypeUID;
  }

  function getUniqueElementID_IE(element) {
    if (element === window) return 0;
    if (element == document) return 1;
    return element.uniqueID;
  }

  var HAS_UNIQUE_ID_PROPERTY = ('uniqueID' in DIV);
  if (HAS_UNIQUE_ID_PROPERTY)
    getUniqueElementID = getUniqueElementID_IE;

  function getStorage(element) {
    if (!(element = $(element))) return;

    var uid = getUniqueElementID(element);

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

    return Element.Storage[uid];
  }

  function store(element, key, value) {
    if (!(element = $(element))) return;
    var storage = getStorage(element);
    if (arguments.length === 2) {
      storage.update(key);
    } else {
      storage.set(key, value);
    }
    return element;
  }

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

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

    return value;
  }


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


  var Methods = {}, ByTag = Element.Methods.ByTag,
   F = Prototype.BrowserFeatures;

  if (!F.ElementExtensions && ('__proto__' in DIV)) {
    GLOBAL.HTMLElement = {};
    GLOBAL.HTMLElement.prototype = DIV['__proto__'];
    F.ElementExtensions = true;
  }

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

    return false;
  }

  var HTMLOBJECTELEMENT_PROTOTYPE_BUGGY =
   checkElementPrototypeDeficiency('object');

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

  var EXTENDED = {};
  function elementIsExtended(element) {
    var uid = getUniqueElementID(element);
    return (uid in EXTENDED);
  }

  function extend(element) {
    if (!element || elementIsExtended(element)) return element;
    if (element.nodeType !== Node.ELEMENT_NODE || element == window)
      return element;

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

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

    extendElementWith(element, methods);
    EXTENDED[getUniqueElementID(element)] = true;
    return element;
  }

  function extend_IE8(element) {
    if (!element || elementIsExtended(element)) return element;

    var t = element.tagName;
    if (t && (/^(?:object|applet|embed)$/i.test(t))) {
      extendElementWith(element, Element.Methods);
      extendElementWith(element, Element.Methods.Simulated);
      extendElementWith(element, Element.Methods.ByTag[t.toUpperCase()]);
    }

    return element;
  }

  if (F.SpecificElementExtensions) {
    extend = HTMLOBJECTELEMENT_PROTOTYPE_BUGGY ? extend_IE8 : Prototype.K;
  }

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

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

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

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

    element = null;
    return proto;
  }

  function addMethods(methods) {
    if (arguments.length === 0) addFormMethods();

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

    if (!tagName) {
      Object.extend(Element.Methods, methods || {});
    } else {
      if (Object.isArray(tagName)) {
        for (var i = 0, tag; tag = tagName[i]; i++)
          addMethodsToTagName(tag, methods);
      } else {
        addMethodsToTagName(tagName, methods);
      }
    }

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

    if (F.ElementExtensions) {
      mergeMethods(ELEMENT_PROTOTYPE, Element.Methods);
      mergeMethods(ELEMENT_PROTOTYPE, Element.Methods.Simulated, true);
    }

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

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

    Element.extend.refresh();

    ELEMENT_CACHE = {};
  }

  Object.extend(GLOBAL.Element, {
    extend:     extend,
    addMethods: addMethods
  });

  if (extend === Prototype.K) {
    GLOBAL.Element.extend.refresh = Prototype.emptyFunction;
  } else {
    GLOBAL.Element.extend.refresh = function() {
      if (Prototype.BrowserFeatures.ElementExtensions) return;
      Object.extend(Methods, Element.Methods);
      Object.extend(Methods, Element.Methods.Simulated);

      EXTENDED = {};
    };
  }

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

  Element.addMethods(methods);

})(this);
(function() {

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

  function getRawStyle(element, style) {
    element = $(element);

    var value = element.style[style];
    if (!value || value === 'auto') {
      var css = document.defaultView.getComputedStyle(element, null);
      value = css ? css[style] : null;
    }

    if (style === 'opacity') return value ? parseFloat(value) : 1.0;
    return value === 'auto' ? null : value;
  }

  function getRawStyle_IE(element, style) {
    var value = element.style[style];
    if (!value && element.currentStyle) {
      value = element.currentStyle[style];
    }
    return value;
  }

  function getContentWidth(element, context) {
    var boxWidth = element.offsetWidth;

    var bl = getPixelValue(element, 'borderLeftWidth',  context) || 0;
    var br = getPixelValue(element, 'borderRightWidth', context) || 0;
    var pl = getPixelValue(element, 'paddingLeft',      context) || 0;
    var pr = getPixelValue(element, 'paddingRight',     context) || 0;

    return boxWidth - bl - br - pl - pr;
  }

  if ('currentStyle' in document.documentElement) {
    getRawStyle = getRawStyle_IE;
  }


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

    if (value === null || Object.isUndefined(value)) {
      return null;
    }

    if ((/^(?:-)?\d+(\.\d+)?(px)?$/i).test(value)) {
      return window.parseFloat(value);
    }

    var isPercentage = value.include('%'), isViewport = (context === document.viewport);

    if (/\d/.test(value) && element && element.runtimeStyle && !(isPercentage && isViewport)) {
      var style = element.style.left, rStyle = element.runtimeStyle.left;
      element.runtimeStyle.left = element.currentStyle.left;
      element.style.left = value || 0;
      value = element.style.pixelLeft;
      element.style.left = style;
      element.runtimeStyle.left = rStyle;

      return value;
    }

    if (element && isPercentage) {
      context = context || element.parentNode;
      var decimal = toDecimal(value), whole = null;

      var isHorizontal = property.include('left') || property.include('right') ||
       property.include('width');

      var isVertical   = property.include('top') || property.include('bottom') ||
        property.include('height');

      if (context === document.viewport) {
        if (isHorizontal) {
          whole = document.viewport.getWidth();
        } else if (isVertical) {
          whole = document.viewport.getHeight();
        }
      } else {
        if (isHorizontal) {
          whole = $(context).measure('width');
        } else if (isVertical) {
          whole = $(context).measure('height');
        }
      }

      return (whole === null) ? 0 : whole * decimal;
    }

    return 0;
  }

  function toCSSPixels(number) {
    if (Object.isString(number) && number.endsWith('px'))
      return number;
    return number + 'px';
  }

  function isDisplayed(element) {
    while (element && element.parentNode) {
      var display = element.getStyle('display');
      if (display === 'none') {
        return false;
      }
      element = $(element.parentNode);
    }
    return true;
  }

  var hasLayout = Prototype.K;
  if ('currentStyle' in document.documentElement) {
    hasLayout = function(element) {
      if (!element.currentStyle.hasLayout) {
        element.style.zoom = 1;
      }
      return element;
    };
  }

  function cssNameFor(key) {
    if (key.include('border')) key = key + '-width';
    return key.camelize();
  }

  Element.Layout = Class.create(Hash, {
    initialize: function($super, element, preCompute) {
      $super();
      this.element = $(element);

      Element.Layout.PROPERTIES.each( function(property) {
        this._set(property, null);
      }, this);

      if (preCompute) {
        this._preComputing = true;
        this._begin();
        Element.Layout.PROPERTIES.each( this._compute, this );
        this._end();
        this._preComputing = false;
      }
    },

    _set: function(property, value) {
      return Hash.prototype.set.call(this, property, value);
    },

    set: function(property, value) {
      throw "Properties of Element.Layout are read-only.";
    },

    get: function($super, property) {
      var value = $super(property);
      return value === null ? this._compute(property) : value;
    },

    _begin: function() {
      if (this._isPrepared()) return;

      var element = this.element;
      if (isDisplayed(element)) {
        this._setPrepared(true);
        return;
      }


      var originalStyles = {
        position:   element.style.position   || '',
        width:      element.style.width      || '',
        visibility: element.style.visibility || '',
        display:    element.style.display    || ''
      };

      element.store('prototype_original_styles', originalStyles);

      var position = getRawStyle(element, 'position'), width = element.offsetWidth;

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

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

      var tempStyles = {
        visibility: 'hidden',
        display:    'block'
      };

      if (position !== 'fixed') tempStyles.position = 'absolute';

      element.setStyle(tempStyles);

      var positionedWidth = element.offsetWidth, newWidth;
      if (width && (positionedWidth === width)) {
        newWidth = getContentWidth(element, context);
      } else if (position === 'absolute' || position === 'fixed') {
        newWidth = getContentWidth(element, context);
      } else {
        var parent = element.parentNode, pLayout = $(parent).getLayout();

        newWidth = pLayout.get('width') -
         this.get('margin-left') -
         this.get('border-left') -
         this.get('padding-left') -
         this.get('padding-right') -
         this.get('border-right') -
         this.get('margin-right');
      }

      element.setStyle({ width: newWidth + 'px' });

      this._setPrepared(true);
    },

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

    _compute: function(property) {
      var COMPUTATIONS = Element.Layout.COMPUTATIONS;
      if (!(property in COMPUTATIONS)) {
        throw "Property not found.";
      }

      return this._set(property, COMPUTATIONS[property].call(this, this.element));
    },

    _isPrepared: function() {
      return this.element.retrieve('prototype_element_layout_prepared', false);
    },

    _setPrepared: function(bool) {
      return this.element.store('prototype_element_layout_prepared', bool);
    },

    toObject: function() {
      var args = $A(arguments);
      var keys = (args.length === 0) ? Element.Layout.PROPERTIES :
       args.join(' ').split(' ');
      var obj = {};
      keys.each( function(key) {
        if (!Element.Layout.PROPERTIES.include(key)) return;
        var value = this.get(key);
        if (value != null) obj[key] = value;
      }, this);
      return obj;
    },

    toHash: function() {
      var obj = this.toObject.apply(this, arguments);
      return new Hash(obj);
    },

    toCSS: function() {
      var args = $A(arguments);
      var keys = (args.length === 0) ? Element.Layout.PROPERTIES :
       args.join(' ').split(' ');
      var css = {};

      keys.each( function(key) {
        if (!Element.Layout.PROPERTIES.include(key)) return;
        if (Element.Layout.COMPOSITE_PROPERTIES.include(key)) return;

        var value = this.get(key);
        if (value != null) css[cssNameFor(key)] = value + 'px';
      }, this);
      return css;
    },

    inspect: function() {
      return "#<Element.Layout>";
    }
  });

  Object.extend(Element.Layout, {
    PROPERTIES: $w('height width top left right bottom border-left border-right border-top border-bottom padding-left padding-right padding-top padding-bottom margin-top margin-bottom margin-left margin-right padding-box-width padding-box-height border-box-width border-box-height margin-box-width margin-box-height'),

    COMPOSITE_PROPERTIES: $w('padding-box-width padding-box-height margin-box-width margin-box-height border-box-width border-box-height'),

    COMPUTATIONS: {
      'height': function(element) {
        if (!this._preComputing) this._begin();

        var bHeight = this.get('border-box-height');
        if (bHeight <= 0) {
          if (!this._preComputing) this._end();
          return 0;
        }

        var bTop = this.get('border-top'),
         bBottom = this.get('border-bottom');

        var pTop = this.get('padding-top'),
         pBottom = this.get('padding-bottom');

        if (!this._preComputing) this._end();

        return bHeight - bTop - bBottom - pTop - pBottom;
      },

      'width': function(element) {
        if (!this._preComputing) this._begin();

        var bWidth = this.get('border-box-width');
        if (bWidth <= 0) {
          if (!this._preComputing) this._end();
          return 0;
        }

        var bLeft = this.get('border-left'),
         bRight = this.get('border-right');

        var pLeft = this.get('padding-left'),
         pRight = this.get('padding-right');

        if (!this._preComputing) this._end();
        return bWidth - bLeft - bRight - pLeft - pRight;
      },

      'padding-box-height': function(element) {
        var height = this.get('height'),
         pTop = this.get('padding-top'),
         pBottom = this.get('padding-bottom');

        return height + pTop + pBottom;
      },

      'padding-box-width': function(element) {
        var width = this.get('width'),
         pLeft = this.get('padding-left'),
         pRight = this.get('padding-right');

        return width + pLeft + pRight;
      },

      'border-box-height': function(element) {
        if (!this._preComputing) this._begin();
        var height = element.offsetHeight;
        if (!this._preComputing) this._end();
        return height;
      },

      'border-box-width': function(element) {
        if (!this._preComputing) this._begin();
        var width = element.offsetWidth;
        if (!this._preComputing) this._end();
        return width;
      },

      'margin-box-height': function(element) {
        var bHeight = this.get('border-box-height'),
         mTop = this.get('margin-top'),
         mBottom = this.get('margin-bottom');

        if (bHeight <= 0) return 0;

        return bHeight + mTop + mBottom;
      },

      'margin-box-width': function(element) {
        var bWidth = this.get('border-box-width'),
         mLeft = this.get('margin-left'),
         mRight = this.get('margin-right');

        if (bWidth <= 0) return 0;

        return bWidth + mLeft + mRight;
      },

      'top': function(element) {
        var offset = element.positionedOffset();
        return offset.top;
      },

      'bottom': function(element) {
        var offset = element.positionedOffset(),
         parent = element.getOffsetParent(),
         pHeight = parent.measure('height');

        var mHeight = this.get('border-box-height');

        return pHeight - mHeight - offset.top;
      },

      'left': function(element) {
        var offset = element.positionedOffset();
        return offset.left;
      },

      'right': function(element) {
        var offset = element.positionedOffset(),
         parent = element.getOffsetParent(),
         pWidth = parent.measure('width');

        var mWidth = this.get('border-box-width');

        return pWidth - mWidth - offset.left;
      },

      'padding-top': function(element) {
        return getPixelValue(element, 'paddingTop');
      },

      'padding-bottom': function(element) {
        return getPixelValue(element, 'paddingBottom');
      },

      'padding-left': function(element) {
        return getPixelValue(element, 'paddingLeft');
      },

      'padding-right': function(element) {
        return getPixelValue(element, 'paddingRight');
      },

      'border-top': function(element) {
        return getPixelValue(element, 'borderTopWidth');
      },

      'border-bottom': function(element) {
        return getPixelValue(element, 'borderBottomWidth');
      },

      'border-left': function(element) {
        return getPixelValue(element, 'borderLeftWidth');
      },

      'border-right': function(element) {
        return getPixelValue(element, 'borderRightWidth');
      },

      'margin-top': function(element) {
        return getPixelValue(element, 'marginTop');
      },

      'margin-bottom': function(element) {
        return getPixelValue(element, 'marginBottom');
      },

      'margin-left': function(element) {
        return getPixelValue(element, 'marginLeft');
      },

      'margin-right': function(element) {
        return getPixelValue(element, 'marginRight');
      }
    }
  });

  if ('getBoundingClientRect' in document.documentElement) {
    Object.extend(Element.Layout.COMPUTATIONS, {
      'right': function(element) {
        var parent = hasLayout(element.getOffsetParent());
        var rect = element.getBoundingClientRect(),
         pRect = parent.getBoundingClientRect();

        return (pRect.right - rect.right).round();
      },

      'bottom': function(element) {
        var parent = hasLayout(element.getOffsetParent());
        var rect = element.getBoundingClientRect(),
         pRect = parent.getBoundingClientRect();

        return (pRect.bottom - rect.bottom).round();
      }
    });
  }

  Element.Offset = Class.create({
    initialize: function(left, top) {
      this.left = left.round();
      this.top  = top.round();

      this[0] = this.left;
      this[1] = this.top;
    },

    relativeTo: function(offset) {
      return new Element.Offset(
        this.left - offset.left,
        this.top  - offset.top
      );
    },

    inspect: function() {
      return "#<Element.Offset left: #{left} top: #{top}>".interpolate(this);
    },

    toString: function() {
      return "[#{left}, #{top}]".interpolate(this);
    },

    toArray: function() {
      return [this.left, this.top];
    }
  });

  function getLayout(element, preCompute) {
    return new Element.Layout(element, preCompute);
  }

  function measure(element, property) {
    return $(element).getLayout().get(property);
  }

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

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

  function getDimensions(element) {
    element = $(element);
    var display = Element.getStyle(element, 'display');

    if (display && display !== 'none') {
      return { width: element.offsetWidth, height: element.offsetHeight };
    }

    var style = element.style;
    var originalStyles = {
      visibility: style.visibility,
      position:   style.position,
      display:    style.display
    };

    var newStyles = {
      visibility: 'hidden',
      display:    'block'
    };

    if (originalStyles.position !== 'fixed')
      newStyles.position = 'absolute';

    Element.setStyle(element, newStyles);

    var dimensions = {
      width:  element.offsetWidth,
      height: element.offsetHeight
    };

    Element.setStyle(element, originalStyles);

    return dimensions;
  }

  function getOffsetParent(element) {
    element = $(element);

    if (isDocument(element) || isDetached(element) || isBody(element) || isHtml(element))
      return $(document.body);

    var isInline = (Element.getStyle(element, 'display') === 'inline');
    if (!isInline && element.offsetParent) return $(element.offsetParent);

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

    return $(document.body);
  }


  function cumulativeOffset(element) {
    element = $(element);
    var valueT = 0, valueL = 0;
    if (element.parentNode) {
      do {
        valueT += element.offsetTop  || 0;
        valueL += element.offsetLeft || 0;
        element = element.offsetParent;
      } while (element);
    }
    return new Element.Offset(valueL, valueT);
  }

  function positionedOffset(element) {
    element = $(element);

    var layout = element.getLayout();

    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
      if (element) {
        if (isBody(element)) break;
        var p = Element.getStyle(element, 'position');
        if (p !== 'static') break;
      }
    } while (element);

    valueL -= layout.get('margin-top');
    valueT -= layout.get('margin-left');

    return new Element.Offset(valueL, valueT);
  }

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

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

    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;
  }


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


  function makePositioned(element) {
    element = $(element);
    var position = Element.getStyle(element, 'position'), styles = {};
    if (position === 'static' || !position) {
      styles.position = 'relative';
      if (Prototype.Browser.Opera) {
        styles.top  = 0;
        styles.left = 0;
      }
      Element.setStyle(element, styles);
      Element.store(element, 'prototype_made_positioned', true);
    }
    return element;
  }

  function undoPositioned(element) {
    element = $(element);
    var storage = Element.getStorage(element),
     madePositioned = storage.get('prototype_made_positioned');

    if (madePositioned) {
      storage.unset('prototype_made_positioned');
      Element.setStyle(element, {
        position: '',
        top:      '',
        bottom:   '',
        left:     '',
        right:    ''
      });
    }
    return element;
  }

  function makeClipping(element) {
    element = $(element);

    var storage = Element.getStorage(element),
     madeClipping = storage.get('prototype_made_clipping');

    if (Object.isUndefined(madeClipping)) {
      var overflow = Element.getStyle(element, 'overflow');
      storage.set('prototype_made_clipping', overflow);
      if (overflow !== 'hidden')
        element.style.overflow = 'hidden';
    }

    return element;
  }

  function undoClipping(element) {
    element = $(element);
    var storage = Element.getStorage(element),
     overflow = storage.get('prototype_made_clipping');

    if (!Object.isUndefined(overflow)) {
      storage.unset('prototype_made_clipping');
      element.style.overflow = overflow || '';
    }

    return element;
  }

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

    source  = $(source);
    element = $(element);
    var p, delta, layout, styles = {};

    if (options.setLeft || options.setTop) {
      p = Element.viewportOffset(source);
      delta = [0, 0];
      if (Element.getStyle(element, 'position') === 'absolute') {
        var parent = Element.getOffsetParent(element);
        if (parent !== document.body) delta = Element.viewportOffset(parent);
      }
    }

    if (options.setWidth || options.setHeight) {
      layout = Element.getLayout(source);
    }

    if (options.setLeft)
      styles.left = (p[0] - delta[0] + options.offsetLeft) + 'px';
    if (options.setTop)
      styles.top  = (p[1] - delta[1] + options.offsetTop)  + 'px';

    if (options.setWidth)
      styles.width  = layout.get('border-box-width')  + 'px';
    if (options.setHeight)
      styles.height = layout.get('border-box-height') + 'px';

    return Element.setStyle(element, styles);
  }


  if (Prototype.Browser.IE) {
    getOffsetParent = getOffsetParent.wrap(
      function(proceed, element) {
        element = $(element);

        if (isDocument(element) || isDetached(element) || isBody(element) || isHtml(element))
          return $(document.body);

        var position = element.getStyle('position');
        if (position !== 'static') return proceed(element);

        element.setStyle({ position: 'relative' });
        var value = proceed(element);
        element.setStyle({ position: position });
        return value;
      }
    );

    positionedOffset = positionedOffset.wrap(function(proceed, element) {
      element = $(element);
      if (!element.parentNode) return new Element.Offset(0, 0);
      var position = element.getStyle('position');
      if (position !== 'static') return proceed(element);

      var offsetParent = element.getOffsetParent();
      if (offsetParent && offsetParent.getStyle('position') === 'fixed')
        hasLayout(offsetParent);

      element.setStyle({ position: 'relative' });
      var value = proceed(element);
      element.setStyle({ position: position });
      return value;
    });
  } else if (Prototype.Browser.Webkit) {
    cumulativeOffset = function(element) {
      element = $(element);
      var valueT = 0, valueL = 0;
      do {
        valueT += element.offsetTop  || 0;
        valueL += element.offsetLeft || 0;
        if (element.offsetParent == document.body) {
          if (Element.getStyle(element, 'position') == 'absolute') break;
        }

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

      return new Element.Offset(valueL, valueT);
    };
  }


  Element.addMethods({
    getLayout:              getLayout,
    measure:                measure,
    getWidth:               getWidth,
    getHeight:              getHeight,
    getDimensions:          getDimensions,
    getOffsetParent:        getOffsetParent,
    cumulativeOffset:       cumulativeOffset,
    positionedOffset:       positionedOffset,
    cumulativeScrollOffset: cumulativeScrollOffset,
    viewportOffset:         viewportOffset,
    absolutize:             absolutize,
    relativize:             relativize,
    scrollTo:               scrollTo,
    makePositioned:         makePositioned,
    undoPositioned:         undoPositioned,
    makeClipping:           makeClipping,
    undoClipping:           undoClipping,
    clonePosition:          clonePosition
  });

  function isBody(element) {
    return element.nodeName.toUpperCase() === 'BODY';
  }

  function isHtml(element) {
    return element.nodeName.toUpperCase() === 'HTML';
  }

  function isDocument(element) {
    return element.nodeType === Node.DOCUMENT_NODE;
  }

  function isDetached(element) {
    return element !== document.body &&
     !Element.descendantOf(element, document.body);
  }

  if ('getBoundingClientRect' in document.documentElement) {
    Element.addMethods({
      viewportOffset: function(element) {
        element = $(element);
        if (isDetached(element)) return new Element.Offset(0, 0);

        var rect = element.getBoundingClientRect(),
         docEl = document.documentElement;
        return new Element.Offset(rect.left - docEl.clientLeft,
         rect.top - docEl.clientTop);
      }
    });
  }


})();

(function() {

  var IS_OLD_OPERA = Prototype.Browser.Opera &&
   (window.parseFloat(window.opera.version()) < 9.5);
  var ROOT = null;
  function getRootElement() {
    if (ROOT) return ROOT;
    ROOT = IS_OLD_OPERA ? document.body : document.documentElement;
    return ROOT;
  }

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

  function getWidth() {
    return getRootElement().clientWidth;
  }

  function getHeight() {
    return getRootElement().clientHeight;
  }

  function getScrollOffsets() {
    var x = window.pageXOffset || document.documentElement.scrollLeft ||
     document.body.scrollLeft;
    var y = window.pageYOffset || document.documentElement.scrollTop ||
     document.body.scrollTop;

    return new Element.Offset(x, y);
  }

  document.viewport = {
    getDimensions:    getDimensions,
    getWidth:         getWidth,
    getHeight:        getHeight,
    getScrollOffsets: getScrollOffsets
  };

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

Prototype.Selector = (function() {

  function select() {
    throw new Error('Method "Prototype.Selector.select" must be defined.');
  }

  function match() {
    throw new Error('Method "Prototype.Selector.match" must be defined.');
  }

  function find(elements, expression, index) {
    index = index || 0;
    var match = Prototype.Selector.match, length = elements.length, matchIndex = 0, i;

    for (i = 0; i < length; i++) {
      if (match(elements[i], expression) && index == matchIndex++) {
        return Element.extend(elements[i]);
      }
    }
  }

  function extendElements(elements) {
    for (var i = 0, length = elements.length; i < length; i++) {
      Element.extend(elements[i]);
    }
    return elements;
  }


  var K = Prototype.K;

  return {
    select: select,
    match: match,
    find: find,
    extendElements: (Element.extend === K) ? K : extendElements,
    extendElement: Element.extend
  };
})();
/*!
 * Sizzle CSS Selector Engine
 *  Copyright 2011, 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,
	rBackslash = /\\/g,
	rNonWord = /\W/;

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

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

	var origContext = context;

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

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

	var m, set, checkSet, extra, ret, cur, pop, i,
		prune = true,
		contextXML = Sizzle.isXML( context ),
		parts = [],
		soFar = selector;

	do {
		chunker.exec( "" );
		m = chunker.exec( soFar );

		if ( m ) {
			soFar = m[3];

			parts.push( m[1] );

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

	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]) ) {

			ret = Sizzle.find( parts.shift(), context, contextXML );
			context = ret.expr ?
				Sizzle.filter( ret.expr, ret.set )[0] :
				ret.set[0];
		}

		if ( context ) {
			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 ) {
				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 ) {
		Sizzle.error( cur || selector );
	}

	if ( toString.call(checkSet) === "[object Array]" ) {
		if ( !prune ) {
			results.push.apply( results, checkSet );

		} else if ( context && context.nodeType === 1 ) {
			for ( i = 0; checkSet[i] != null; i++ ) {
				if ( checkSet[i] && (checkSet[i] === true || checkSet[i].nodeType === 1 && Sizzle.contains(context, checkSet[i])) ) {
					results.push( set[i] );
				}
			}

		} else {
			for ( 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.matchesSelector = function( node, expr ) {
	return Sizzle( expr, null, null, [node] ).length > 0;
};

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

	if ( !expr ) {
		return [];
	}

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

		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( rBackslash, "" );
				set = Expr.find[ type ]( match, context, isXML );

				if ( set != null ) {
					expr = expr.replace( Expr.match[ type ], "" );
					break;
				}
			}
		}
	}

	if ( !set ) {
		set = typeof context.getElementsByTagName !== "undefined" ?
			context.getElementsByTagName( "*" ) :
			[];
	}

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

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

	while ( expr && set.length ) {
		for ( var type in Expr.filter ) {
			if ( (match = Expr.leftMatch[ type ].exec( expr )) != null && match[2] ) {
				var found, item,
					filter = Expr.filter[ type ],
					left = match[1];

				anyFound = false;

				match.splice(1,1);

				if ( left.substr( left.length - 1 ) === "\\" ) {
					continue;
				}

				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 ) {
				Sizzle.error( expr );

			} else {
				break;
			}
		}

		old = expr;
	}

	return curLoop;
};

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

var Expr = Sizzle.selectors = {
	order: [ "ID", "NAME", "TAG" ],

	match: {
		ID: /#((?:[\w\u00c0-\uFFFF\-]|\\.)+)/,
		CLASS: /\.((?:[\w\u00c0-\uFFFF\-]|\\.)+)/,
		NAME: /\[name=['"]*((?:[\w\u00c0-\uFFFF\-]|\\.)+)['"]*\]/,
		ATTR: /\[\s*((?:[\w\u00c0-\uFFFF\-]|\\.)+)\s*(?:(\S?=)\s*(?:(['"])(.*?)\3|(#?(?:[\w\u00c0-\uFFFF\-]|\\.)*)|)|)\s*\]/,
		TAG: /^((?:[\w\u00c0-\uFFFF\*\-]|\\.)+)/,
		CHILD: /:(only|nth|last|first)-child(?:\(\s*(even|odd|(?:[+\-]?\d+|(?:[+\-]?\d*)?n\s*(?:[+\-]\s*\d+)?))\s*\))?/,
		POS: /:(nth|eq|gt|lt|first|last|even|odd)(?:\((\d*)\))?(?=[^\-]|$)/,
		PSEUDO: /:((?:[\w\u00c0-\uFFFF\-]|\\.)+)(?:\((['"]?)((?:\([^\)]+\)|[^\(\)]*)+)\2\))?/
	},

	leftMatch: {},

	attrMap: {
		"class": "className",
		"for": "htmlFor"
	},

	attrHandle: {
		href: function( elem ) {
			return elem.getAttribute( "href" );
		},
		type: function( elem ) {
			return elem.getAttribute( "type" );
		}
	},

	relative: {
		"+": function(checkSet, part){
			var isPartStr = typeof part === "string",
				isTag = isPartStr && !rNonWord.test( part ),
				isPartStrNotTag = isPartStr && !isTag;

			if ( isTag ) {
				part = part.toLowerCase();
			}

			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.toLowerCase() === part ?
						elem || false :
						elem === part;
				}
			}

			if ( isPartStrNotTag ) {
				Sizzle.filter( part, checkSet, true );
			}
		},

		">": function( checkSet, part ) {
			var elem,
				isPartStr = typeof part === "string",
				i = 0,
				l = checkSet.length;

			if ( isPartStr && !rNonWord.test( part ) ) {
				part = part.toLowerCase();

				for ( ; i < l; i++ ) {
					elem = checkSet[i];

					if ( elem ) {
						var parent = elem.parentNode;
						checkSet[i] = parent.nodeName.toLowerCase() === part ? parent : false;
					}
				}

			} else {
				for ( ; i < l; i++ ) {
					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 nodeCheck,
				doneName = done++,
				checkFn = dirCheck;

			if ( typeof part === "string" && !rNonWord.test( part ) ) {
				part = part.toLowerCase();
				nodeCheck = part;
				checkFn = dirNodeCheck;
			}

			checkFn( "parentNode", part, doneName, checkSet, nodeCheck, isXML );
		},

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

			if ( typeof part === "string" && !rNonWord.test( part ) ) {
				part = part.toLowerCase();
				nodeCheck = part;
				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.parentNode ? [m] : [];
			}
		},

		NAME: function( match, context ) {
			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 ) {
			if ( typeof context.getElementsByTagName !== "undefined" ) {
				return context.getElementsByTagName( match[1] );
			}
		}
	},
	preFilter: {
		CLASS: function( match, curLoop, inplace, result, not, isXML ) {
			match = " " + match[1].replace( rBackslash, "" ) + " ";

			if ( isXML ) {
				return match;
			}

			for ( var i = 0, elem; (elem = curLoop[i]) != null; i++ ) {
				if ( elem ) {
					if ( not ^ (elem.className && (" " + elem.className + " ").replace(/[\t\n\r]/g, " ").indexOf(match) >= 0) ) {
						if ( !inplace ) {
							result.push( elem );
						}

					} else if ( inplace ) {
						curLoop[i] = false;
					}
				}
			}

			return false;
		},

		ID: function( match ) {
			return match[1].replace( rBackslash, "" );
		},

		TAG: function( match, curLoop ) {
			return match[1].replace( rBackslash, "" ).toLowerCase();
		},

		CHILD: function( match ) {
			if ( match[1] === "nth" ) {
				if ( !match[2] ) {
					Sizzle.error( match[0] );
				}

				match[2] = match[2].replace(/^\+|\s*/g, '');

				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;
			}
			else if ( match[2] ) {
				Sizzle.error( match[0] );
			}

			match[0] = done++;

			return match;
		},

		ATTR: function( match, curLoop, inplace, result, not, isXML ) {
			var name = match[1] = match[1].replace( rBackslash, "" );

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

			match[4] = ( match[4] || match[5] || "" ).replace( rBackslash, "" );

			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 ) {
			if ( elem.parentNode ) {
				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 ) {
			var attr = elem.getAttribute( "type" ), type = elem.type;
			return elem.nodeName.toLowerCase() === "input" && "text" === type && ( attr === type || attr === null );
		},

		radio: function( elem ) {
			return elem.nodeName.toLowerCase() === "input" && "radio" === elem.type;
		},

		checkbox: function( elem ) {
			return elem.nodeName.toLowerCase() === "input" && "checkbox" === elem.type;
		},

		file: function( elem ) {
			return elem.nodeName.toLowerCase() === "input" && "file" === elem.type;
		},

		password: function( elem ) {
			return elem.nodeName.toLowerCase() === "input" && "password" === elem.type;
		},

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

		image: function( elem ) {
			return elem.nodeName.toLowerCase() === "input" && "image" === elem.type;
		},

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

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

		input: function( elem ) {
			return (/input|select|textarea|button/i).test( elem.nodeName );
		},

		focus: function( elem ) {
			return elem === elem.ownerDocument.activeElement;
		}
	},
	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 || Sizzle.getText([ elem ]) || "").indexOf(match[3]) >= 0;

			} else if ( name === "not" ) {
				var not = match[3];

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

				return true;

			} else {
				Sizzle.error( name );
			}
		},

		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.toLowerCase() === 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,
	fescape = function(all, num){
		return "\\" + (num - 0 + 1);
	};

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.replace(/\\(\d+)/g, fescape) );
}

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 )[0].nodeType;

} catch( e ) {
	makeArray = function( array, results ) {
		var i = 0,
			ret = results || [];

		if ( toString.call(array) === "[object Array]" ) {
			Array.prototype.push.apply( ret, array );

		} else {
			if ( typeof array.length === "number" ) {
				for ( var l = array.length; i < l; i++ ) {
					ret.push( array[i] );
				}

			} else {
				for ( ; array[i]; i++ ) {
					ret.push( array[i] );
				}
			}
		}

		return ret;
	};
}

var sortOrder, siblingCheck;

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

		if ( !a.compareDocumentPosition || !b.compareDocumentPosition ) {
			return a.compareDocumentPosition ? -1 : 1;
		}

		return a.compareDocumentPosition(b) & 4 ? -1 : 1;
	};

} else {
	sortOrder = function( a, b ) {
		if ( a === b ) {
			hasDuplicate = true;
			return 0;

		} else if ( a.sourceIndex && b.sourceIndex ) {
			return a.sourceIndex - b.sourceIndex;
		}

		var al, bl,
			ap = [],
			bp = [],
			aup = a.parentNode,
			bup = b.parentNode,
			cur = aup;

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

		} else if ( !aup ) {
			return -1;

		} else if ( !bup ) {
			return 1;
		}

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

		cur = bup;

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

		al = ap.length;
		bl = bp.length;

		for ( var i = 0; i < al && i < bl; i++ ) {
			if ( ap[i] !== bp[i] ) {
				return siblingCheck( ap[i], bp[i] );
			}
		}

		return i === al ?
			siblingCheck( a, bp[i], -1 ) :
			siblingCheck( ap[i], b, 1 );
	};

	siblingCheck = function( a, b, ret ) {
		if ( a === b ) {
			return ret;
		}

		var cur = a.nextSibling;

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

			cur = cur.nextSibling;
		}

		return 1;
	};
}

Sizzle.getText = function( elems ) {
	var ret = "", elem;

	for ( var i = 0; elems[i]; i++ ) {
		elem = elems[i];

		if ( elem.nodeType === 3 || elem.nodeType === 4 ) {
			ret += elem.nodeValue;

		} else if ( elem.nodeType !== 8 ) {
			ret += Sizzle.getText( elem.childNodes );
		}
	}

	return ret;
};

(function(){
	var form = document.createElement("div"),
		id = "script" + (new Date()).getTime(),
		root = document.documentElement;

	form.innerHTML = "<a name='" + id + "'/>";

	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;
})();

(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;
})();

if ( document.querySelectorAll ) {
	(function(){
		var oldSizzle = Sizzle,
			div = document.createElement("div"),
			id = "__sizzle__";

		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 && !Sizzle.isXML(context) ) {
				var match = /^(\w+$)|^\.([\w\-]+$)|^#([\w\-]+$)/.exec( query );

				if ( match && (context.nodeType === 1 || context.nodeType === 9) ) {
					if ( match[1] ) {
						return makeArray( context.getElementsByTagName( query ), extra );

					} else if ( match[2] && Expr.find.CLASS && context.getElementsByClassName ) {
						return makeArray( context.getElementsByClassName( match[2] ), extra );
					}
				}

				if ( context.nodeType === 9 ) {
					if ( query === "body" && context.body ) {
						return makeArray( [ context.body ], extra );

					} else if ( match && match[3] ) {
						var elem = context.getElementById( match[3] );

						if ( elem && elem.parentNode ) {
							if ( elem.id === match[3] ) {
								return makeArray( [ elem ], extra );
							}

						} else {
							return makeArray( [], extra );
						}
					}

					try {
						return makeArray( context.querySelectorAll(query), extra );
					} catch(qsaError) {}

				} else if ( context.nodeType === 1 && context.nodeName.toLowerCase() !== "object" ) {
					var oldContext = context,
						old = context.getAttribute( "id" ),
						nid = old || id,
						hasParent = context.parentNode,
						relativeHierarchySelector = /^\s*[+~]/.test( query );

					if ( !old ) {
						context.setAttribute( "id", nid );
					} else {
						nid = nid.replace( /'/g, "\\$&" );
					}
					if ( relativeHierarchySelector && hasParent ) {
						context = context.parentNode;
					}

					try {
						if ( !relativeHierarchySelector || hasParent ) {
							return makeArray( context.querySelectorAll( "[id='" + nid + "'] " + query ), extra );
						}

					} catch(pseudoError) {
					} finally {
						if ( !old ) {
							oldContext.removeAttribute( "id" );
						}
					}
				}
			}

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

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

		div = null;
	})();
}

(function(){
	var html = document.documentElement,
		matches = html.matchesSelector || html.mozMatchesSelector || html.webkitMatchesSelector || html.msMatchesSelector;

	if ( matches ) {
		var disconnectedMatch = !matches.call( document.createElement( "div" ), "div" ),
			pseudoWorks = false;

		try {
			matches.call( document.documentElement, "[test!='']:sizzle" );

		} catch( pseudoError ) {
			pseudoWorks = true;
		}

		Sizzle.matchesSelector = function( node, expr ) {
			expr = expr.replace(/\=\s*([^'"\]]*)\s*\]/g, "='$1']");

			if ( !Sizzle.isXML( node ) ) {
				try {
					if ( pseudoWorks || !Expr.match.PSEUDO.test( expr ) && !/!=/.test( expr ) ) {
						var ret = matches.call( node, expr );

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

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

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

	div.innerHTML = "<div class='test e'></div><div class='test'></div>";

	if ( !div.getElementsByClassName || 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;
})();

function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
	for ( var i = 0, l = checkSet.length; i < l; i++ ) {
		var elem = checkSet[i];

		if ( elem ) {
			var match = false;

			elem = elem[dir];

			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.toLowerCase() === cur ) {
					match = elem;
					break;
				}

				elem = elem[dir];
			}

			checkSet[i] = match;
		}
	}
}

function dirCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
	for ( var i = 0, l = checkSet.length; i < l; i++ ) {
		var elem = checkSet[i];

		if ( elem ) {
			var match = false;

			elem = elem[dir];

			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;
		}
	}
}

if ( document.documentElement.contains ) {
	Sizzle.contains = function( a, b ) {
		return a !== b && (a.contains ? a.contains(b) : true);
	};

} else if ( document.documentElement.compareDocumentPosition ) {
	Sizzle.contains = function( a, b ) {
		return !!(a.compareDocumentPosition(b) & 16);
	};

} else {
	Sizzle.contains = function() {
		return false;
	};
}

Sizzle.isXML = function( elem ) {
	var documentElement = (elem ? elem.ownerDocument || elem : 0).documentElement;

	return documentElement ? documentElement.nodeName !== "HTML" : false;
};

var posProcess = function( selector, context ) {
	var match,
		tmpSet = [],
		later = "",
		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;

})();

Prototype._original_property = window.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) {
        value = value.gsub(/(\r)?\n/, '\r\n');
        value = encodeURIComponent(value);
        value = value.gsub(/%20/, '+');
        return result + (result ? '&' : '') + encodeURIComponent(key) + '=' + 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('*');
    var element, results = [], serializers = Form.Element.Serializers;

    for (var i = 0; element = elements[i]; i++) {
      if (serializers[element.tagName.toLowerCase()])
        results.push(Element.extend(element));
    }
    return results;
  },

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

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

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

    return matchingInputs;
  },

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

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

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

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

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

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

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

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

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

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

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


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

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

Form.Element.Methods = {

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

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

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

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

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

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

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

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

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

var Field = Form.Element;

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

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

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

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

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

  function select(element, value) {
    if (Object.isUndefined(value))
      return (element.type === 'select-one' ? selectOne : selectMany)(element);

    var opt, currentValue, single = !Object.isArray(value);
    for (var i = 0, length = element.length; i < length; i++) {
      opt = element.options[i];
      currentValue = this.optionValue(opt);
      if (single) {
        if (currentValue == value) {
          opt.selected = true;
          return;
        }
      }
      else opt.selected = value.include(currentValue);
    }
  }

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

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

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

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

  return {
    input:         input,
    inputSelector: inputSelector,
    textarea:      valueSelector,
    select:        select,
    selectOne:     selectOne,
    selectMany:    selectMany,
    optionValue:   optionValue,
    button:        valueSelector
  };
})();

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


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

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

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

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

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

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

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

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

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

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

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

Form.EventObserver = Class.create(Abstract.EventObserver, {
  getValue: function() {
    return Form.serialize(this.element);
  }
});
(function(GLOBAL) {
  var DIV = document.createElement('div');
  var docEl = document.documentElement;
  var MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED = 'onmouseenter' in docEl
   && 'onmouseleave' in docEl;

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


  var isIELegacyEvent = function(event) { return false; };

  if (window.attachEvent) {
    if (window.addEventListener) {
      isIELegacyEvent = function(event) {
        return !(event instanceof window.Event);
      };
    } else {
      isIELegacyEvent = function(event) { return true; };
    }
  }

  var _isButton;

  function _isButtonForDOMEvents(event, code) {
    return event.which ? (event.which === code + 1) : (event.button === code);
  }

  var legacyButtonMap = { 0: 1, 1: 4, 2: 2 };
  function _isButtonForLegacyEvents(event, code) {
    return event.button === legacyButtonMap[code];
  }

  function _isButtonForWebKit(event, code) {
    switch (code) {
      case 0: return event.which == 1 && !event.metaKey;
      case 1: return event.which == 2 || (event.which == 1 && event.metaKey);
      case 2: return event.which == 3;
      default: return false;
    }
  }

  if (window.attachEvent) {
    if (!window.addEventListener) {
      _isButton = _isButtonForLegacyEvents;
    } else {
      _isButton = function(event, code) {
        return isIELegacyEvent(event) ? _isButtonForLegacyEvents(event, code) :
         _isButtonForDOMEvents(event, code);
      }
    }
  } else if (Prototype.Browser.WebKit) {
    _isButton = _isButtonForWebKit;
  } else {
    _isButton = _isButtonForDOMEvents;
  }

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

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

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

  function element(event) {
    return Element.extend(_element(event));
  }

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

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

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

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

    return Element.extend(node);
  }

  function findElement(event, expression) {
    var element = _element(event), match = Prototype.Selector.match;
    if (!expression) return Element.extend(element);
    while (element) {
      if (Object.isElement(element) && match(element, expression))
        return Element.extend(element);
      element = element.parentNode;
    }
  }

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

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

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

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

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


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

    event.stopped = true;
  }


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

    element:     element,
    findElement: findElement,

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

    stop: stop
  };

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

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

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

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

      if (!isIELegacyEvent(event)) return event;

      if (event._extendedByPrototype) return event;
      event._extendedByPrototype = Prototype.emptyFunction;

      var pointer = Event.pointer(event);

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

      Object.extend(event, methods);
      Object.extend(event, additionalMethods);

      return event;
    };
  } else {
    Event.extend = Prototype.K;
  }

  if (window.addEventListener) {
    Event.prototype = window.Event.prototype || document.createEvent('HTMLEvents').__proto__;
    Object.extend(Event.prototype, methods);
  }

  var EVENT_TRANSLATIONS = {
    mouseenter: 'mouseover',
    mouseleave: 'mouseout'
  };

  function getDOMEventName(eventName) {
    return EVENT_TRANSLATIONS[eventName] || eventName;
  }

  if (MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED)
    getDOMEventName = Prototype.K;

  function getUniqueElementID(element) {
    if (element === window) return 0;

    if (typeof element._prototypeUID === 'undefined')
      element._prototypeUID = Element.Storage.UID++;
    return element._prototypeUID;
  }

  function getUniqueElementID_IE(element) {
    if (element === window) return 0;
    if (element == document) return 1;
    return element.uniqueID;
  }

  if ('uniqueID' in DIV)
    getUniqueElementID = getUniqueElementID_IE;

  function isCustomEvent(eventName) {
    return eventName.include(':');
  }

  Event._isCustomEvent = isCustomEvent;

  function getRegistryForElement(element, uid) {
    var CACHE = GLOBAL.Event.cache;
    if (Object.isUndefined(uid))
      uid = getUniqueElementID(element);
    if (!CACHE[uid]) CACHE[uid] = { element: element };
    return CACHE[uid];
  }

  function destroyRegistryForElement(element, uid) {
    if (Object.isUndefined(uid))
      uid = getUniqueElementID(element);
    delete GLOBAL.Event.cache[uid];
  }


  function register(element, eventName, handler) {
    var registry = getRegistryForElement(element);
    if (!registry[eventName]) registry[eventName] = [];
    var entries = registry[eventName];

    var i = entries.length;
    while (i--)
      if (entries[i].handler === handler) return null;

    var uid = getUniqueElementID(element);
    var responder = GLOBAL.Event._createResponder(uid, eventName, handler);
    var entry = {
      responder: responder,
      handler:   handler
    };

    entries.push(entry);
    return entry;
  }

  function unregister(element, eventName, handler) {
    var registry = getRegistryForElement(element);
    var entries = registry[eventName];
    if (!entries) return;

    var i = entries.length, entry;
    while (i--) {
      if (entries[i].handler === handler) {
        entry = entries[i];
        break;
      }
    }

    if (!entry) return;

    var index = entries.indexOf(entry);
    entries.splice(index, 1);

    return entry;
  }


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

    if (entry === null) return element;

    var responder = entry.responder;
    if (isCustomEvent(eventName))
      observeCustomEvent(element, eventName, responder);
    else
      observeStandardEvent(element, eventName, responder);

    return element;
  }

  function observeStandardEvent(element, eventName, responder) {
    var actualEventName = getDOMEventName(eventName);
    if (element.addEventListener) {
      element.addEventListener(actualEventName, responder, false);
    } else {
      element.attachEvent('on' + actualEventName, responder);
    }
  }

  function observeCustomEvent(element, eventName, responder) {
    if (element.addEventListener) {
      element.addEventListener('dataavailable', responder, false);
    } else {
      element.attachEvent('ondataavailable', responder);
      element.attachEvent('onlosecapture',   responder);
    }
  }

  function stopObserving(element, eventName, handler) {
    element = $(element);
    var handlerGiven = !Object.isUndefined(handler),
     eventNameGiven = !Object.isUndefined(eventName);

    if (!eventNameGiven && !handlerGiven) {
      stopObservingElement(element);
      return element;
    }

    if (!handlerGiven) {
      stopObservingEventName(element, eventName);
      return element;
    }

    var entry = unregister(element, eventName, handler);

    if (!entry) return element;
    removeEvent(element, eventName, entry.responder);
    return element;
  }

  function stopObservingStandardEvent(element, eventName, responder) {
    var actualEventName = getDOMEventName(eventName);
    if (element.removeEventListener) {
      element.removeEventListener(actualEventName, responder, false);
    } else {
      element.detachEvent('on' + actualEventName, responder);
    }
  }

  function stopObservingCustomEvent(element, eventName, responder) {
    if (element.removeEventListener) {
      element.removeEventListener('dataavailable', responder, false);
    } else {
      element.detachEvent('ondataavailable', responder);
      element.detachEvent('onlosecapture',   responder);
    }
  }



  function stopObservingElement(element) {
    var uid = getUniqueElementID(element),
     registry = getRegistryForElement(element, uid);

    destroyRegistryForElement(element, uid);

    var entries, i;
    for (var eventName in registry) {
      if (eventName === 'element') continue;

      entries = registry[eventName];
      i = entries.length;
      while (i--)
        removeEvent(element, eventName, entries[i].responder);
    }
  }

  function stopObservingEventName(element, eventName) {
    var registry = getRegistryForElement(element);
    var entries = registry[eventName];
    if (!entries) return;
    delete registry[eventName];

    var i = entries.length;
    while (i--)
      removeEvent(element, eventName, entries[i].responder);
  }


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



  function getFireTarget(element) {
    if (element !== document) return element;
    if (document.createEvent && !element.dispatchEvent)
      return document.documentElement;
    return element;
  }

  function fire(element, eventName, memo, bubble) {
    element = getFireTarget($(element));
    if (Object.isUndefined(bubble)) bubble = true;
    memo = memo || {};

    var event = fireEvent(element, eventName, memo, bubble);
    return Event.extend(event);
  }

  function fireEvent_DOM(element, eventName, memo, bubble) {
    var event = document.createEvent('HTMLEvents');
    event.initEvent('dataavailable', bubble, true);

    event.eventName = eventName;
    event.memo = memo;

    element.dispatchEvent(event);
    return event;
  }

  function fireEvent_IE(element, eventName, memo, bubble) {
    var event = document.createEventObject();
    event.eventType = bubble ? 'ondataavailable' : 'onlosecapture';

    event.eventName = eventName;
    event.memo = memo;

    element.fireEvent(event.eventType, event);
    return event;
  }

  var fireEvent = document.createEvent ? fireEvent_DOM : fireEvent_IE;



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


    start: function() {
      Event.observe(this.element, this.eventName, this.handler);
      return this;
    },

    stop: function() {
      Event.stopObserving(this.element, this.eventName, this.handler);
      return this;
    },

    handleEvent: function(event) {
      var element = Event.findElement(event, this.selector);
      if (element) this.callback.call(this.element, event, element);
    }
  });

  function on(element, eventName, selector, callback) {
    element = $(element);
    if (Object.isFunction(selector) && Object.isUndefined(callback)) {
      callback = selector, selector = null;
    }

    return new Event.Handler(element, eventName, selector, callback).start();
  }

  Object.extend(Event, Event.Methods);

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

  Element.addMethods({
    fire:          fire,

    observe:       observe,

    stopObserving: stopObserving,

    on:            on
  });

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

    observe:       observe.methodize(),

    stopObserving: stopObserving.methodize(),

    on:            on.methodize(),

    loaded:        false
  });

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

  GLOBAL.Event.cache = {};

  function destroyCache_IE() {
    GLOBAL.Event.cache = null;
  }

  if (window.attachEvent)
    window.attachEvent('onunload', destroyCache_IE);

  DIV = null;
  docEl = null;
})(this);

(function(GLOBAL) {
  /* Code for creating leak-free event responders is based on work by
   John-David Dalton. */

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

  function isSimulatedMouseEnterLeaveEvent(eventName) {
    return !MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED &&
     (eventName === 'mouseenter' || eventName === 'mouseleave');
  }

  function createResponder(uid, eventName, handler) {
    if (Event._isCustomEvent(eventName))
      return createResponderForCustomEvent(uid, eventName, handler);
    if (isSimulatedMouseEnterLeaveEvent(eventName))
      return createMouseEnterLeaveResponder(uid, eventName, handler);

    return function(event) {
      var cacheEntry = Event.cache[uid];
      var element = cacheEntry.element;

      Event.extend(event, element);
      handler.call(element, event);
    };
  }

  function createResponderForCustomEvent(uid, eventName, handler) {
    return function(event) {
      var cacheEntry = Event.cache[uid], element = cacheEntry.element;

      if (Object.isUndefined(event.eventName))
        return false;

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

      Event.extend(event, element);
      handler.call(element, event);
    };
  }

  function createMouseEnterLeaveResponder(uid, eventName, handler) {
    return function(event) {
      var cacheEntry = Event.cache[uid], element = cacheEntry.element;

      Event.extend(event, element);
      var parent = event.relatedTarget;

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

      if (parent === element) return;
      handler.call(element, event);
    }
  }

  GLOBAL.Event._createResponder = createResponder;
  docEl = null;
})(this);

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

  var TIMER;

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

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

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

    fireContentLoadedEvent();
  }

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

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


Element.addMethods();
/*------------------------------- DEPRECATED -------------------------------*/

Hash.toQueryString = Object.toQueryString;

var Toggle = { display: Element.toggle };

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

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

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

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

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

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

var Position = {
  includeScrollOffsets: false,

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

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

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

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

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

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

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


  cumulativeOffset: Element.Methods.cumulativeOffset,

  positionedOffset: Element.Methods.positionedOffset,

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

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

  realOffset: Element.Methods.cumulativeScrollOffset,

  offsetParent: Element.Methods.getOffsetParent,

  page: Element.Methods.viewportOffset,

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

(function() {
  window.Selector = Class.create({
    initialize: function(expression) {
      this.expression = expression.strip();
    },

    findElements: function(rootElement) {
      return Prototype.Selector.select(this.expression, rootElement);
    },

    match: function(element) {
      return Prototype.Selector.match(element, this.expression);
    },

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

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

  Object.extend(Selector, {
    matchElements: function(elements, expression) {
      var match = Prototype.Selector.match,
          results = [];

      for (var i = 0, length = elements.length; i < length; i++) {
        var element = elements[i];
        if (match(element, expression)) {
          results.push(Element.extend(element));
        }
      }
      return results;
    },

    findElement: function(elements, expression, index) {
      index = index || 0;
      var matchIndex = 0, element;
      for (var i = 0, length = elements.length; i < length; i++) {
        element = elements[i];
        if (Prototype.Selector.match(element, expression) && index === matchIndex++) {
          return Element.extend(element);
        }
      }
    },

    findChildElements: function(element, expressions) {
      var selector = expressions.toArray().join(', ');
      return Prototype.Selector.select(selector, element || document);
    }
  });
})();