var Prototype={
Version:'1.6.0.2',
Browser:{
IE:!!(window.attachEvent&&!window.opera),
Opera:!!window.opera,
WebKit:navigator.userAgent.indexOf('AppleWebKit/')>-1,
Gecko:navigator.userAgent.indexOf('Gecko')>-1&&navigator.userAgent.indexOf('KHTML')==-1,
MobileSafari:!!navigator.userAgent.match(/Apple.*Mobile.*Safari/)},
BrowserFeatures:{
XPath:!!document.evaluate,
ElementExtensions:!!window.HTMLElement,
SpecificElementExtensions:
document.createElement('div').__proto__&&
document.createElement('div').__proto__!==
document.createElement('form').__proto__},
ScriptFragment:'<script[^>]*>([\\S\\s]*?)<\/script>',
JSONFilter:/^\/\*-secure-([\s\S]*)\*\/\s*$/,
emptyFunction:function(){},
K:function(x){return x}};
if(Prototype.Browser.MobileSafari)
Prototype.BrowserFeatures.SpecificElementExtensions=false;
var Class={
create:function(){
var parent=null,properties=$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){
var subclass=function(){};
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;}};
Class.Methods={
addMethods:function(source){
var ancestor=this.superclass&&this.superclass.prototype;
var properties=Object.keys(source);
if(!Object.keys({toString:true}).length)
properties.push("toString","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=Object.extend((function(m){
return function(){return ancestor[m].apply(this,arguments)};})(property).wrap(method),{
valueOf:function(){return method},
toString:function(){return method.toString()}});}
this.prototype[property]=value;}
return this;}};
var Abstract={};
Object.extend=function(destination,source){
for(var property in source)
destination[property]=source[property];
return destination;};
Object.extend(Object,{
inspect:function(object){
try{
if(Object.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;}},
toJSON:function(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(Object.isElement(object))return;
var results=[];
for(var property in object){
var value=Object.toJSON(object[property]);
if(!Object.isUndefined(value))
results.push(property.toJSON()+': '+value);}
return '{'+results.join(', ')+'}';},
toQueryString:function(object){
return $H(object).toQueryString();},
toHTML:function(object){
return object&&object.toHTML?object.toHTML():String.interpret(object);},
keys:function(object){
var keys=[];
for(var property in object)
keys.push(property);
return keys;},
values:function(object){
var values=[];
for(var property in object)
values.push(object[property]);
return values;},
clone:function(object){
return Object.extend({},object);},
isElement:function(object){
return object&&object.nodeType==1;},
isArray:function(object){
return object!=null&&typeof object=="object"&&
'splice' in object&&'join' in object;},
isHash:function(object){
return object instanceof Hash;},
isFunction:function(object){
return typeof object=="function";},
isString:function(object){
return typeof object=="string";},
isNumber:function(object){
return typeof object=="number";},
isUndefined:function(object){
return typeof object=="undefined";}});
Object.extend(Function.prototype,{
argumentNames:function(){
var names=this.toString().match(/^[\s\(]*function[^(]*\((.*?)\)/)[1].split(",").invoke("strip");
return names.length==1&&!names[0]?[]:names;},
bind:function(){
if(arguments.length<2&&Object.isUndefined(arguments[0]))return this;
var __method=this,args=$A(arguments),object=args.shift();
return function(){
return __method.apply(object,args.concat($A(arguments)));}},
bindAsEventListener:function(){
var __method=this,args=$A(arguments),object=args.shift();
return function(event){
return __method.apply(object,[event||window.event].concat(args));}},
curry:function(){
if(!arguments.length)return this;
var __method=this,args=$A(arguments);
return function(){
return __method.apply(this,args.concat($A(arguments)));}},
delay:function(){
var __method=this,args=$A(arguments),timeout=args.shift()*1000;
return window.setTimeout(function(){
return __method.apply(__method,args);},timeout);},
wrap:function(wrapper){
var __method=this;
return function(){
return wrapper.apply(this,[__method.bind(this)].concat($A(arguments)));}},
methodize:function(){
if(this._methodized)return this._methodized;
var __method=this;
return this._methodized=function(){
return __method.apply(null,[this].concat($A(arguments)));};}});
Function.prototype.defer=Function.prototype.delay.curry(0.01);
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"';};
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;}};
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();}finally{
this.currentlyExecuting=false;}}}});
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,{
gsub:function(pattern,replacement){
var result='',source=this,match;
replacement=arguments.callee.prepareReplacement(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;},
sub:function(pattern,replacement,count){
replacement=this.gsub.prepareReplacement(replacement);
count=Object.isUndefined(count)?1:count;
return this.gsub(pattern,function(match){
if(--count<0)return match[0];
return replacement(match);});},
scan:function(pattern,iterator){
this.gsub(pattern,iterator);
return String(this);},
truncate:function(length,truncation){
length=length||30;
truncation=Object.isUndefined(truncation)?'...':truncation;
return this.length>length?
this.slice(0,length-truncation.length)+truncation:String(this);},
strip:function(){
return this.replace(/^\s+/,'').replace(/\s+$/,'');},
stripTags:function(){
return this.replace(/<\/?[^>]+>/gi,'');},
stripScripts:function(){
return this.replace(new RegExp(Prototype.ScriptFragment,'img'),'');},
extractScripts:function(){
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];});},
evalScripts:function(){
return this.extractScripts().map(function(script){return eval(script)});},
escapeHTML:function(){
var self=arguments.callee;
self.text.data=this;
return self.div.innerHTML;},
unescapeHTML:function(){
var div=new Element('div');
div.innerHTML=this.stripTags();
return div.childNodes[0]?(div.childNodes.length>1?
$A(div.childNodes).inject('',function(memo,node){return memo+node.nodeValue}):
div.childNodes[0].nodeValue):'';},
toQueryParams:function(separator){
var match=this.strip().match(/([^?#]*)(#.*)?$/);
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;});},
toArray:function(){
return this.split('');},
succ:function(){
return this.slice(0,this.length-1)+
String.fromCharCode(this.charCodeAt(this.length-1)+1);},
times:function(count){
return count<1?'':new Array(count+1).join(this);},
camelize:function(){
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;},
capitalize:function(){
return this.charAt(0).toUpperCase()+this.substring(1).toLowerCase();},
underscore:function(){
return this.gsub(/::/,'/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase();},
dasherize:function(){
return this.gsub(/_/,'-');},
inspect:function(useDoubleQuotes){
var escapedString=this.gsub(/[\x00-\x1f\\]/,function(match){
var character=String.specialChar[match[0]];
return character?character:'\\u00'+match[0].charCodeAt().toPaddedString(2,16);});
if(useDoubleQuotes)return '"'+escapedString.replace(/"/g,'\\"')+'"';
return "'"+escapedString.replace(/'/g,'\\\'') + "'";},
toJSON:function(){
return this.inspect(true);},
unfilterJSON:function(filter){
return this.sub(filter||Prototype.JSONFilter,'#{1}');},
isJSON:function(){
var str=this;
if(str.blank())return false;
str=this.replace(/\\./g,'@').replace(/"[^"\\\n\r]*"/g,'');
return(/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);},
evalJSON:function(sanitize){
var json=this.unfilterJSON();
try{
if(!sanitize||json.isJSON())return eval('('+json+')');}catch(e){}
throw new SyntaxError('Badly formed JSON string: '+this.inspect());},
include:function(pattern){
return this.indexOf(pattern)>-1;},
startsWith:function(pattern){
return this.indexOf(pattern)===0;},
endsWith:function(pattern){
var d=this.length-pattern.length;
return d>=0&&this.lastIndexOf(pattern)===d;},
empty:function(){
return this=='';},
blank:function(){
return/^\s*$/.test(this);},
interpolate:function(object,pattern){
return new Template(this,pattern).evaluate(object);}});
if(Prototype.Browser.WebKit||Prototype.Browser.IE)Object.extend(String.prototype,{
escapeHTML:function(){
return this.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');},
unescapeHTML:function(){
return this.replace(/&amp;/g,'&').replace(/&lt;/g,'<').replace(/&gt;/g,'>');}});
String.prototype.gsub.prepareReplacement=function(replacement){
if(Object.isFunction(replacement))return replacement;
var template=new Template(replacement);
return function(match){return template.evaluate(match)};};
String.prototype.parseQuery=String.prototype.toQueryParams;
Object.extend(String.prototype.escapeHTML,{
div:document.createElement('div'),
text:document.createTextNode('')});
with(String.prototype.escapeHTML)div.appendChild(text);
var Template=Class.create({
initialize:function(template,pattern){
this.template=template.toString();
this.pattern=pattern||Template.Pattern;},
evaluate:function(object){
if(Object.isFunction(object.toTemplateReplacements))
object=object.toTemplateReplacements();
return this.template.gsub(this.pattern,function(match){
if(object==null)return '';
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].gsub('\\\\]',']'):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 $break={};
var Enumerable={
each:function(iterator,context){
var index=0;
iterator=iterator.bind(context);
try{
this._each(function(value){
iterator(value,index++);});}catch(e){
if(e!=$break)throw e;}
return this;},
eachSlice:function(number,iterator,context){
iterator=iterator?iterator.bind(context):Prototype.K;
var index=-number,slices=[],array=this.toArray();
while((index+=number)<array.length)
slices.push(array.slice(index,index+number));
return slices.collect(iterator,context);},
all:function(iterator,context){
iterator=iterator?iterator.bind(context):Prototype.K;
var result=true;
this.each(function(value,index){
result=result&&!!iterator(value,index);
if(!result)throw $break;});
return result;},
any:function(iterator,context){
iterator=iterator?iterator.bind(context):Prototype.K;
var result=false;
this.each(function(value,index){
if(result=!!iterator(value,index))
throw $break;});
return result;},
collect:function(iterator,context){
iterator=iterator?iterator.bind(context):Prototype.K;
var results=[];
this.each(function(value,index){
results.push(iterator(value,index));});
return results;},
detect:function(iterator,context){
iterator=iterator.bind(context);
var result;
this.each(function(value,index){
if(iterator(value,index)){
result=value;
throw $break;}});
return result;},
findAll:function(iterator,context){
iterator=iterator.bind(context);
var results=[];
this.each(function(value,index){
if(iterator(value,index))
results.push(value);});
return results;},
grep:function(filter,iterator,context){
iterator=iterator?iterator.bind(context):Prototype.K;
var results=[];
if(Object.isString(filter))
filter=new RegExp(filter);
this.each(function(value,index){
if(filter.match(value))
results.push(iterator(value,index));});
return results;},
include:function(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 $break;}});
return found;},
inGroupsOf:function(number,fillWith){
fillWith=Object.isUndefined(fillWith)?null:fillWith;
return this.eachSlice(number,function(slice){
while(slice.length<number)slice.push(fillWith);
return slice;});},
inject:function(memo,iterator,context){
iterator=iterator.bind(context);
this.each(function(value,index){
memo=iterator(memo,value,index);});
return memo;},
invoke:function(method){
var args=$A(arguments).slice(1);
return this.map(function(value){
return value[method].apply(value,args);});},
max:function(iterator,context){
iterator=iterator?iterator.bind(context):Prototype.K;
var result;
this.each(function(value,index){
value=iterator(value,index);
if(result==null||value>=result)
result=value;});
return result;},
min:function(iterator,context){
iterator=iterator?iterator.bind(context):Prototype.K;
var result;
this.each(function(value,index){
value=iterator(value,index);
if(result==null||value<result)
result=value;});
return result;},
partition:function(iterator,context){
iterator=iterator?iterator.bind(context):Prototype.K;
var trues=[],falses=[];
this.each(function(value,index){(iterator(value,index)?
trues:falses).push(value);});
return[trues,falses];},
pluck:function(property){
var results=[];
this.each(function(value){
results.push(value[property]);});
return results;},
reject:function(iterator,context){
iterator=iterator.bind(context);
var results=[];
this.each(function(value,index){
if(!iterator(value,index))
results.push(value);});
return results;},
sortBy:function(iterator,context){
iterator=iterator.bind(context);
return this.map(function(value,index){
return{value:value,criteria:iterator(value,index)};}).sort(function(left,right){
var a=left.criteria,b=right.criteria;
return a<b?-1:a>b?1:0;}).pluck('value');},
toArray:function(){
return this.map();},
zip:function(){
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));});},
size:function(){
return this.toArray().length;},
inspect:function(){
return '#<Enumerable:'+this.toArray().inspect()+'>';}};
Object.extend(Enumerable,{
map:Enumerable.collect,
find:Enumerable.detect,
select:Enumerable.findAll,
filter:Enumerable.findAll,
member:Enumerable.include,
entries:Enumerable.toArray,
every:Enumerable.all,
some:Enumerable.any});
function $A(iterable){
if(!iterable)return[];
if(iterable.toArray)return iterable.toArray();
var length=iterable.length||0,results=new Array(length);
while(length--)results[length]=iterable[length];
return results;}
if(Prototype.Browser.WebKit){
$A=function(iterable){
if(!iterable)return[];
if(!(Object.isFunction(iterable)&&iterable=='[object NodeList]')&&
iterable.toArray)return iterable.toArray();
var length=iterable.length||0,results=new Array(length);
while(length--)results[length]=iterable[length];
return results;};}
Array.from=$A;
Object.extend(Array.prototype,Enumerable);
if(!Array.prototype._reverse)Array.prototype._reverse=Array.prototype.reverse;
Object.extend(Array.prototype,{
_each:function(iterator){
for(var i=0,length=this.length;i<length;i++)
iterator(this[i]);},
clear:function(){
this.length=0;
return this;},
first:function(){
return this[0];},
last:function(){
return this[this.length-1];},
compact:function(){
return this.select(function(value){
return value!=null;});},
flatten:function(){
return this.inject([],function(array,value){
return array.concat(Object.isArray(value)?
value.flatten():[value]);});},
without:function(){
var values=$A(arguments);
return this.select(function(value){
return !values.include(value);});},
reverse:function(inline){
return(inline!==false?this:this.toArray())._reverse();},
reduce:function(){
return this.length>1?this:this[0];},
uniq:function(sorted){
return this.inject([],function(array,value,index){
if(0==index||(sorted?array.last()!=value:!array.include(value)))
array.push(value);
return array;});},
intersect:function(array){
return this.uniq().findAll(function(item){
return array.detect(function(value){return item===value});});},
clone:function(){
return[].concat(this);},
size:function(){
return this.length;},
inspect:function(){
return '['+this.map(Object.inspect).join(', ')+']';},
toJSON:function(){
var results=[];
this.each(function(object){
var value=Object.toJSON(object);
if(!Object.isUndefined(value))results.push(value);});
return '['+results.join(', ')+']';}});
if(Object.isFunction(Array.prototype.forEach))
Array.prototype._each=Array.prototype.forEach;
if(!Array.prototype.indexOf)Array.prototype.indexOf=function(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;};
if(!Array.prototype.lastIndexOf)Array.prototype.lastIndexOf=function(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;};
Array.prototype.toArray=Array.prototype.clone;
function $w(string){
if(!Object.isString(string))return[];
string=string.strip();
return string?string.split(/\s+/):[];}
if(Prototype.Browser.Opera){
Array.prototype.concat=function(){
var array=[];
for(var i=0,length=this.length;i<length;i++)array.push(this[i]);
for(var i=0,length=arguments.length;i<length;i++){
if(Object.isArray(arguments[i])){
for(var j=0,arrayLength=arguments[i].length;j<arrayLength;j++)
array.push(arguments[i][j]);}else{
array.push(arguments[i]);}}
return array;};}
Object.extend(Number.prototype,{
toColorPart:function(){
return this.toPaddedString(2,16);},
succ:function(){
return this +1;},
times:function(iterator){
$R(0,this,true).each(iterator);
return this;},
toPaddedString:function(length,radix){
var string=this.toString(radix||10);
return '0'.times(length-string.length)+string;},
toJSON:function(){
return isFinite(this)?this.toString():'null';}});
$w('abs round ceil floor').each(function(method){
Number.prototype[method]=Math[method].methodize();});
function $H(object){
return new Hash(object);};
var Hash=Class.create(Enumerable,(function(){
function toQueryPair(key,value){
if(Object.isUndefined(value))return key;
return key+'='+encodeURIComponent(String.interpret(value));}
return{
initialize:function(object){
this._object=Object.isHash(object)?object.toObject():Object.clone(object);},
_each:function(iterator){
for(var key in this._object){
var value=this._object[key],pair=[key,value];
pair.key=key;
pair.value=value;
iterator(pair);}},
set:function(key,value){
return this._object[key]=value;},
get:function(key){
return this._object[key];},
unset:function(key){
var value=this._object[key];
delete this._object[key];
return value;},
toObject:function(){
return Object.clone(this._object);},
keys:function(){
return this.pluck('key');},
values:function(){
return this.pluck('value');},
index:function(value){
var match=this.detect(function(pair){
return pair.value===value;});
return match&&match.key;},
merge:function(object){
return this.clone().update(object);},
update:function(object){
return new Hash(object).inject(this,function(result,pair){
result.set(pair.key,pair.value);
return result;});},
toQueryString:function(){
return this.map(function(pair){
var key=encodeURIComponent(pair.key),values=pair.value;
if(values&&typeof values=='object'){
if(Object.isArray(values))
return values.map(toQueryPair.curry(key)).join('&');}
return toQueryPair(key,values);}).join('&');},
inspect:function(){
return '#<Hash:{'+this.map(function(pair){
return pair.map(Object.inspect).join(': ');}).join(', ')+'}>';},
toJSON:function(){
return Object.toJSON(this.toObject());},
clone:function(){
return new Hash(this);}}})());
Hash.prototype.toTemplateReplacements=Hash.prototype.toObject;
Hash.from=$H;
var ObjectRange=Class.create(Enumerable,{
initialize:function(start,end,exclusive){
this.start=start;
this.end=end;
this.exclusive=exclusive;},
_each:function(iterator){
var value=this.start;
while(this.include(value)){
iterator(value);
value=value.succ();}},
include:function(value){
if(value<this.start)
return false;
if(this.exclusive)
return value<this.end;
return value<=this.end;}});
var $R=function(start,end,exclusive){
return new ObjectRange(start,end,exclusive);};
var Ajax={
getTransport:function(){
return Try.these(
function(){return new XMLHttpRequest()},
function(){return new ActiveXObject('Msxml2.XMLHTTP')},
function(){return new ActiveXObject('Microsoft.XMLHTTP')})||false;},
activeRequestCount:0};
Ajax.Responders={
responders:[],
_each:function(iterator){
this.responders._each(iterator);},
register:function(responder){
if(!this.include(responder))
this.responders.push(responder);},
unregister:function(responder){
this.responders=this.responders.without(responder);},
dispatch:function(callback,request,transport,json){
this.each(function(responder){
if(Object.isFunction(responder[callback])){
try{
responder[callback].apply(responder,[request,transport,json]);}catch(e){}}});}};
Object.extend(Ajax.Responders,Enumerable);
Ajax.Responders.register({
onCreate:function(){Ajax.activeRequestCount++},
onComplete:function(){Ajax.activeRequestCount--}});
Ajax.Base=Class.create({
initialize:function(options){
this.options={
method:'post',
asynchronous:true,
contentType:'application/x-www-form-urlencoded',
encoding:'UTF-8',
parameters:'',
evalJSON:true,
evalJS:true};
Object.extend(this.options,options||{});
this.options.method=this.options.method.toLowerCase();
if(Object.isString(this.options.parameters))
this.options.parameters=this.options.parameters.toQueryParams();
else if(Object.isHash(this.options.parameters))
this.options.parameters=this.options.parameters.toObject();}});
Ajax.Request=Class.create(Ajax.Base,{
_complete:false,
initialize:function($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(){
var element=this.Element;
this.Element=function(tagName,attributes){
attributes=attributes||{};
tagName=tagName.toLowerCase();
var cache=Element.cache;
if(Prototype.Browser.IE&&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(this.Element,element||{});}).call(window);
Element.cache={};
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).style.display='none';
return element;},
show:function(element){
$(element).style.display='';
return element;},
remove:function(element){
element=$(element);
element.parentNode.removeChild(element);
return element;},
update:function(element,content){
element=$(element);
if(content&&content.toElement)content=content.toElement();
if(Object.isElement(content))return element.update().insert(content);
content=Object.toHTML(content);
element.innerHTML=content.stripScripts();
content.evalScripts.bind(content).defer();
return element;},
replace:function(element,content){
element=$(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('parentNode');},
descendants:function(element){
return $(element).select("*");},
firstDescendant:function(element){
element=$(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('previousSibling');},
nextSiblings:function(element){
return $(element).recursivelyCollect('nextSibling');},
siblings:function(element){
element=$(element);
return element.previousSiblings().reverse().concat(element.nextSiblings());},
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 $(element.parentNode);
var ancestors=element.ancestors();
return Object.isNumber(expression)?ancestors[expression]:
Selector.findElement(ancestors,expression,index);},
down:function(element,expression,index){
element=$(element);
if(arguments.length==1)return element.firstDescendant();
return Object.isNumber(expression)?element.descendants()[expression]:
element.select(expression)[index||0];},
previous:function(element,expression,index){
element=$(element);
if(arguments.length==1)return $(Selector.handlers.previousElementSibling(element));
var previousSiblings=element.previousSiblings();
return Object.isNumber(expression)?previousSiblings[expression]:
Selector.findElement(previousSiblings,expression,index);},
next:function(element,expression,index){
element=$(element);
if(arguments.length==1)return $(Selector.handlers.nextElementSibling(element));
var nextSiblings=element.nextSiblings();
return Object.isNumber(expression)?nextSiblings[expression]:
Selector.findElement(nextSiblings,expression,index);},
select:function(){
var args=$A(arguments),element=$(args.shift());
return Selector.findChildElements(element,args);},
adjacent:function(){
var args=$A(arguments),element=$(args.shift());
return Selector.findChildElements(element.parentNode,args).without(element);},
identify:function(element){
element=$(element);
var id=element.readAttribute('id'),self=arguments.callee;
if(id)return id;
do{id='anonymous_element_'+self.counter++}while($(id));
element.writeAttribute('id',id);
return id;},
readAttribute:function(element,name){
element=$(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().height;},
getWidth:function(element){
return $(element).getDimensions().width;},
classNames:function(element){
return new Element.ClassNames(element);},
hasClassName:function(element,className){
if(!(element=$(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(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=$(element)))return;
return element[element.hasClassName(className)?
'removeClassName':'addClassName'](className);},
cleanWhitespace:function(element){
element=$(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=$(ancestor);
var originalAncestor=ancestor;
if(element.compareDocumentPosition)
return(element.compareDocumentPosition(ancestor)&8)===8;
if(element.sourceIndex&&!Prototype.Browser.Opera){
var e=element.sourceIndex,a=ancestor.sourceIndex,
nextAncestor=ancestor.nextSibling;
if(!nextAncestor){
do{ancestor=ancestor.parentNode;}
while(!(nextAncestor=ancestor.nextSibling)&&ancestor.parentNode);}
if(nextAncestor&&nextAncestor.sourceIndex)
return(e>a&&e<nextAncestor.sourceIndex);}
while(element=element.parentNode)
if(element==originalAncestor)return true;
return false;},
scrollTo:function(element){
element=$(element);
var pos=element.cumulativeOffset();
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){
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=$(element).getStyle('display');
if(display!='none'&&display!=null)
return{width:element.offsetWidth,height:element.offsetHeight};
var els=element.style;
var originalVisibility=els.visibility;
var originalPosition=els.position;
var originalDisplay=els.display;
els.visibility='hidden';
els.position='absolute';
els.display='block';
var originalWidth=element.clientWidth;
var originalHeight=element.clientHeight;
els.display=originalDisplay;
els.position=originalPosition;
els.visibility=originalVisibility;
return{width:originalWidth,height:originalHeight};},
makePositioned:function(element){
element=$(element);
var pos=Element.getStyle(element,'position');
if(pos=='static'||!pos){
element._madePositioned=true;
element.style.position='relative';
if(window.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=$(element);
if(!element._overflow)return element;
element.style.overflow=element._overflow=='auto'?'':element._overflow;
element._overflow=null;
return element;},
cumulativeOffset:function(element){
var valueT=0,valueL=0;
do{
valueT+=element.offsetTop||0;
valueL+=element.offsetLeft||0;
element=element.offsetParent;}while(element);
return Element._returnOffset(valueL,valueT);},
positionedOffset:function(element){
var valueT=0,valueL=0;
do{
valueT+=element.offsetTop||0;
valueL+=element.offsetLeft||0;
element=element.offsetParent;
if(element){
if(element.tagName=='BODY')break;
var p=Element.getStyle(element,'position');
if(p!=='static')break;}}while(element);
return Element._returnOffset(valueL,valueT);},
absolutize:function(element){
element=$(element);
if(element.getStyle('position')=='absolute')return;
var offsets=element.positionedOffset();
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('position')=='relative')return;
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 $(document.body);},
viewportOffset:function(forElement){
var valueT=0,valueL=0;
var element=forElement;
do{
valueT+=element.offsetTop||0;
valueL+=element.offsetLeft||0;
if(element.offsetParent==document.body&&
Element.getStyle(element,'position')=='absolute')break;}while(element=element.offsetParent);
element=forElement;
do{
if(!Prototype.Browser.Opera||element.tagName=='BODY'){
valueT-=element.scrollTop||0;
valueL-=element.scrollLeft||0;}}while(element=element.parentNode);
return Element._returnOffset(valueL,valueT);},
clonePosition:function(element,source){
var options=Object.extend({
setLeft:true,
setTop:true,
setWidth:true,
setHeight:true,
offsetTop:0,
offsetLeft:0},arguments[2]||{});
source=$(source);
var p=source.viewportOffset();
element=$(element);
var delta=[0,0];
var parent=null;
if(Element.getStyle(element,'position')=='absolute'){
parent=element.getOffsetParent();
delta=parent.viewportOffset();}
if(parent==document.body){
delta[0]-=document.body.offsetLeft;
delta[1]-=document.body.offsetTop;}
if(options.setLeft)element.style.left=(p[0]-delta[0]+options.offsetLeft)+'px';
if(options.setTop)element.style.top=(p[1]-delta[1]+options.offsetTop)+'px';
if(options.setWidth)element.style.width=source.offsetWidth+'px';
if(options.setHeight)element.style.height=source.offsetHeight+'px';
return element;}};
Element.Methods.identify.counter=1;
Object.extend(Element.Methods,{
getElementsBySelector:Element.Methods.select,
childElements:Element.Methods.immediateDescendants});
Element._attributeTranslations={
write:{
names:{
className:'class',
htmlFor:'for'},
values:{}}};
if(Prototype.Browser.Opera){
Element.Methods.getStyle=Element.Methods.getStyle.wrap(
function(proceed,element,style){
switch(style){
case 'left':case 'top':case 'right':case 'bottom':
if(proceed(element,'position')==='static')return null;
case 'height':case 'width':
if(!Element.visible(element))return null;
var dim=parseInt(proceed(element,style),10);
if(dim!==element['offset'+style.capitalize()])
return dim+'px';
var properties;
if(style==='height'){
properties=['border-top-width','padding-top',
'padding-bottom','border-bottom-width'];}
else{
properties=['border-left-width','padding-left',
'padding-right','border-right-width'];}
return properties.inject(dim,function(memo,property){
var val=proceed(element,property);
return val===null?memo:memo-parseInt(val,10);})+'px';
default:return proceed(element,style);}});
Element.Methods.readAttribute=Element.Methods.readAttribute.wrap(
function(proceed,element,attribute){
if(attribute==='title')return element.title;
return proceed(element,attribute);});}
else if(Prototype.Browser.IE){
Element.Methods.getOffsetParent=Element.Methods.getOffsetParent.wrap(
function(proceed,element){
element=$(element);
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);
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.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={
read:{
names:{
'class':'className',
'for':'htmlFor'},
values:{
_getAttr:function(element,attribute){
return element.getAttribute(attribute,2);},
_getAttrNode:function(element,attribute){
var node=element.getAttributeNode(attribute);
return node?node.value:"";},
_getEv:function(element,attribute){
attribute=element.getAttribute(attribute);
return attribute?attribute.toString().slice(23,-2):null;},
_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={};
$w('colSpan rowSpan vAlign dateTime accessKey tabIndex '+
'encType maxLength readOnly longDesc').each(function(attr){
Element._attributeTranslations.write.names[attr.toLowerCase()]=attr;
Element._attributeTranslations.has[attr.toLowerCase()]=attr;});(function(v){
Object.extend(v,{
href:v._getAttr,
src:v._getAttr,
type:v._getAttr,
action:v._getAttrNode,
disabled:v._flag,
checked:v._flag,
readonly:v._flag,
multiple:v._flag,
onload:v._getEv,
onunload:v._getEv,
onclick:v._getEv,
ondblclick:v._getEv,
onmousedown:v._getEv,
onmouseup:v._getEv,
onmouseover:v._getEv,
onmousemove:v._getEv,
onmouseout:v._getEv,
onfocus:v._getEv,
onblur:v._getEv,
onkeypress:v._getEv,
onkeydown:v._getEv,
onkeyup:v._getEv,
onsubmit:v._getEv,
onreset:v._getEv,
onselect:v._getEv,
onchange:v._getEv});})(Element._attributeTranslations.read.values);}
else if(Prototype.Browser.Gecko&&/rv:1\.8\.0/.test(navigator.userAgent)){
Element.Methods.setOpacity=function(element,value){
element=$(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=$(element);
element.style.opacity=(value==1||value==='')?'':(value<0.00001)?0:value;
if(value==1)
if(element.tagName=='IMG'&&element.width){
element.width++;element.width--;}else try{
var n=document.createTextNode(' ');
element.appendChild(n);
element.removeChild(n);}catch(e){}
return element;};
Element.Methods.cumulativeOffset=function(element){
var valueT=0,valueL=0;
do{
valueT+=element.offsetTop||0;
valueL+=element.offsetLeft||0;
if(element.offsetParent==document.body)
if(Element.getStyle(element,'position')=='absolute')break;
element=element.offsetParent;}while(element);
return Element._returnOffset(valueL,valueT);};}
if(Prototype.Browser.IE||Prototype.Browser.Opera){
Element.Methods.update=function(element,content){
element=$(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 in Element._insertionTranslations.tags){
$A(element.childNodes).each(function(node){element.removeChild(node)});
Element._getContentFromAnonymousElement(tagName,content.stripScripts())
.each(function(node){element.appendChild(node)});}
else element.innerHTML=content.stripScripts();
content.evalScripts.bind(content).defer();
return element;};}
if('outerHTML' in document.createElement('div')){
Element.Methods.replace=function(element,content){
element=$(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 $A(div.childNodes);};
Element._insertionTranslations={
before:function(element,node){
element.parentNode.insertBefore(node,element);},
top:function(element,node){
element.insertBefore(node,element.firstChild);},
bottom:function(element,node){
element.appendChild(node);},
after:function(element,node){
element.parentNode.insertBefore(node,element.nextSibling);},
tags:{
TABLE:['<table>','</table>',1],
TBODY:['<table><tbody>','</tbody></table>',2],
TR:['<table><tbody><tr>','</tr></tbody></table>',3],
TD:['<table><tbody><tr><td>','</td></tr></tbody></table>',4],
SELECT:['<select>','</select>',1]}};(function(){
Object.extend(this.tags,{
THEAD:this.tags.TBODY,
TFOOT:this.tags.TBODY,
TH:this.tags.TD});}).call(Element._insertionTranslations);
Element.Methods.Simulated={
hasAttribute:function(element,attribute){
attribute=Element._attributeTranslations.has[attribute]||attribute;
var node=$(element).getAttributeNode(attribute);
return node&&node.specified;}};
Element.Methods.ByTag={};
Object.extend(Element,Element.Methods);
if(!Prototype.BrowserFeatures.ElementExtensions&&
document.createElement('div').__proto__){
window.HTMLElement={};
window.HTMLElement.prototype=document.createElement('div').__proto__;
Prototype.BrowserFeatures.ElementExtensions=true;}
Element.extend=(function(){
if(Prototype.BrowserFeatures.SpecificElementExtensions)
return Prototype.K;
var Methods={},ByTag=Element.Methods.ByTag;
var extend=Object.extend(function(element){
if(!element||element._extendedByPrototype||
element.nodeType!=1||element==window)return element;
var methods=Object.clone(Methods),
tagName=element.tagName,property,value;
if(ByTag[tagName])Object.extend(methods,ByTag[tagName]);
for(property in methods){
value=methods[property];
if(Object.isFunction(value)&&!(property in element))
element[property]=value.methodize();}
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];
window[klass]={};
window[klass].prototype=document.createElement(tagName).__proto__;
return window[klass];}
if(F.ElementExtensions){
copy(Element.Methods,HTMLElement.prototype);
copy(Element.Methods.Simulated,HTMLElement.prototype,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(){
var dimensions={};
var B=Prototype.Browser;
$w('width height').each(function(d){
var D=d.capitalize();
dimensions[d]=(B.WebKit&&!document.evaluate)?self['inner'+D]:(B.Opera)?document.body['client'+D]:document.documentElement['client'+D];});
return dimensions;},
getWidth:function(){
return this.getDimensions().width;},
getHeight:function(){
return this.getDimensions().height;},
getScrollOffsets:function(){
return Element._returnOffset(
window.pageXOffset||document.documentElement.scrollLeft||document.body.scrollLeft,
window.pageYOffset||document.documentElement.scrollTop||document.body.scrollTop);}};
var Selector=Class.create({
initialize:function(expression){
this.expression=expression.strip();
this.compileMatcher();},
shouldUseXPath: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(this.expression))
return false;
return true;},
compileMatcher:function(){
if(this.shouldUseXPath())
return this.compileXPathMatcher();
var e=this.expression,ps=Selector.patterns,h=Selector.handlers,
c=Selector.criteria,le,p,m;
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 in ps){
p=ps[i];
if(m=e.match(p)){
this.matcher.push(Object.isFunction(c[i])?c[i](m):
new Template(c[i]).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;
if(Selector._cache[e]){
this.xpath=Selector._cache[e];return;}
this.matcher=['.//*'];
while(e&&le!=e&&(/\S/).test(e)){
le=e;
for(var i in ps){
if(m=e.match(ps[i])){
this.matcher.push(Object.isFunction(x[i])?x[i](m):
new Template(x[i]).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;
if(this.xpath)return document._getElementsByXPath(this.xpath,root);
return this.matcher(root);},
match:function(element){
this.tokens=[];
var e=this.expression,ps=Selector.patterns,as=Selector.assertions;
var le,p,m;
while(e&&le!==e&&(/\S/).test(e)){
le=e;
for(var i in ps){
p=ps[i];
if(m=e.match(p)){
if(as[i]){
this.tokens.push([i,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()+">";}});
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}')]",
'$=':"[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",
'*=':"[contains(@#{1}, '#{3}')]",
'~=':"[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
'|=':"[contains(concat('-', @#{1}, '-'), '-#{3}-')]"},
pseudos:{
'first-child':'[not(preceding-sibling::*)]',
'last-child':'[not(following-sibling::*)]',
'only-child':'[not(preceding-sibling::* or following-sibling::*)]',
'empty':"[count(*) = 0 and (count(text()) = 0 or translate(text(), ' \t\r\n', '') = '')]",
'checked':"[@checked]",
'disabled':"[@disabled]",
'enabled':"[not(@disabled)]",
'not':function(m){
var e=m[6],p=Selector.patterns,
x=Selector.xpath,le,v;
var exclusion=[];
while(e&&le!=e&&(/\S/).test(e)){
le=e;
for(var i in p){
if(m=e.match(p[i])){
v=Object.isFunction(x[i])?x[i](m):new Template(x[i]).evaluate(m);
exclusion.push("("+v.substring(1,v.length-1)+")");
e=e.replace(m[0],'');
break;}}}
return "[not("+exclusion.join(" and ")+")]";},
'nth-child':function(m){
return Selector.xpath.pseudos.nth("(count(./preceding-sibling::*) + 1) ",m);},
'nth-last-child':function(m){
return Selector.xpath.pseudos.nth("(count(./following-sibling::*) + 1) ",m);},
'nth-of-type':function(m){
return Selector.xpath.pseudos.nth("position() ",m);},
'nth-last-of-type':function(m){
return Selector.xpath.pseudos.nth("(last() + 1 - position()) ",m);},
'first-of-type':function(m){
m[6]="1";return Selector.xpath.pseudos['nth-of-type'](m);},
'last-of-type':function(m){
m[6]="1";return Selector.xpath.pseudos['nth-last-of-type'](m);},
'only-of-type':function(m){
var p=Selector.xpath.pseudos;return p['first-of-type'](m)+p['last-of-type'](m);},
nth:function(fragment,m){
var mm,formula=m[6],predicate;
if(formula=='even')formula='2n+0';
if(formula=='odd')formula='2n+1';
if(mm=formula.match(/^(\d+)$/))
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:{
laterSibling:/^\s*~\s*/,
child:/^\s*>\s*/,
adjacent:/^\s*\+\s*/,
descendant:/^\s/,
tagName:/^\s*(\*|[\w\-]+)(\b|$)?/,
id:/^#([\w\-\*]+)(\b|$)/,
className:/^\.([\w\-\*]+)(\b|$)/,
pseudo:/^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)(\((.*?)\))?(\b|$|(?=\s|[:+~>]))/,
attrPresence:/^\[([\w]+)\]/,
attr:/\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/},
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(nodes){
for(var i=0,node;node=nodes[i];i++)
node._countedByPrototype=undefined;
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(!(n=nodes[i])._countedByPrototype){
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(!targetNode)return[];
if(!nodes&&root==document)return[targetNode];
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&&!node.innerHTML.match(/^\s*$/)))continue;
results.push(node);}
return results;},
'not':function(nodes,selector,root){
var h=Selector.handlers,selectorType,m;
var exclusions=new Selector(selector).findElements(root);
h.mark(exclusions);
for(var i=0,results=[],node;node=nodes[i];i++)
if(!node._countedByPrototype)results.push(node);
h.unmark(exclusions);
return results;},
'enabled':function(nodes,value,root){
for(var i=0,results=[],node;node=nodes[i];i++)
if(!node.disabled)results.push(node);
return results;},
'disabled':function(nodes,value,root){
for(var i=0,results=[],node;node=nodes[i];i++)
if(node.disabled)results.push(node);
return results;},
'checked':function(nodes,value,root){
for(var i=0,results=[],node;node=nodes[i];i++)
if(node.checked)results.push(node);
return results;}},
operators:{
'=':function(nv,v){return nv==v;},
'!=':function(nv,v){return nv!=v;},
'^=':function(nv,v){return nv.startsWith(v);},
'$=':function(nv,v){return nv.endsWith(v);},
'*=':function(nv,v){return 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=$$(expression),h=Selector.handlers;
h.mark(matches);
for(var i=0,results=[],element;element=elements[i];i++)
if(element._countedByPrototype)results.push(element);
h.unmark(matches);
return results;},
findElement:function(elements,expression,index){
if(Object.isNumber(expression)){
index=expression;expression=false;}
return Selector.matchElements(elements,expression||'*')[index||0];},
findChildElements:function(element,expressions){
expressions=Selector.split(expressions.join(','));
var results=[],h=Selector.handlers;
for(var i=0,l=expressions.length,selector;i<l;i++){
selector=new Selector(expressions[i].strip());
h.concat(results,selector.findElements(element));}
return(l>1)?h.unique(results):results;}});
if(Prototype.Browser.IE){
Object.extend(Selector.handlers,{
concat:function(a,b){
for(var i=0,node;node=b[i];i++)
if(node.tagName!=="!")a.push(node);
return a;},
unmark:function(nodes){
for(var i=0,node;node=nodes[i];i++)
node.removeAttribute('_countedByPrototype');
return nodes;}});}
function $$(){
return Selector.findChildElements(document,$A(arguments));}
var Form={
reset:function(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!='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){
return $A($(form).getElementsByTagName('*')).inject([],
function(elements,child){
if(Form.Element.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'].include(element.tagName.toLowerCase());});},
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'].include(element.type)))
element.select();}catch(e){}
return element;},
disable:function(element){
element=$(element);
element.blur();
element.disabled=true;
return element;},
enable:function(element){
element=$(element);
element.disabled=false;
return element;}};
var Field=Form.Element;
var $F=Form.Element.Methods.getValue;
Form.Element.Serializers={
input:function(element,value){
switch(element.type.toLowerCase()){
case 'checkbox':
case 'radio':
return Form.Element.Serializers.inputSelector(element,value);
default:
return Form.Element.Serializers.textarea(element,value);}},
inputSelector:function(element,value){
if(Object.isUndefined(value))return element.checked?element.value:null;
else element.checked=!!value;},
textarea:function(element,value){
if(Object.isUndefined(value))return element.value;
else element.value=value;},
select:function(element,index){
if(Object.isUndefined(index))
return this[element.type=='select-one'?
'selectOne':'selectMany'](element);
else{
var opt,value,single=!Object.isArray(index);
for(var i=0,length=element.length;i<length;i++){
opt=element.options[i];
value=this.optionValue(opt);
if(single){
if(value==index){
opt.selected=true;
return;}}
else opt.selected=index.include(value);}}},
selectOne:function(element){
var index=element.selectedIndex;
return index>=0?this.optionValue(element.options[index]):null;},
selectMany:function(element){
var values,length=element.length;
if(!length)return null;
for(var i=0,values=[];i<length;i++){
var opt=element.options[i];
if(opt.selected)values.push(this.optionValue(opt));}
return values;},
optionValue:function(opt){
return Element.extend(opt).hasAttribute('value')?opt.value:opt.text;}};
Abstract.TimedObserver=Class.create(PeriodicalExecuter,{
initialize:function($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);}});
if(!window.Event)var Event={};
Object.extend(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:{},
relatedTarget:function(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);}});
Event.Methods=(function(){
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);};}
return{
isLeftClick:function(event){return isButton(event,0)},
isMiddleClick:function(event){return isButton(event,1)},
isRightClick:function(event){return isButton(event,2)},
element:function(event){
var node=Event.extend(event).target;
return Element.extend(node.nodeType==Node.TEXT_NODE?node.parentNode:node);},
findElement:function(event,expression){
var element=Event.element(event);
if(!expression)return element;
var elements=[element].concat(element.ancestors());
return Selector.findElement(elements,expression,0);},
pointer:function(event){
return{
x:event.pageX||(event.clientX+(document.documentElement.scrollLeft||document.body.scrollLeft)),
y:event.pageY||(event.clientY+(document.documentElement.scrollTop||document.body.scrollTop))};},
pointerX:function(event){return Event.pointer(event).x},
pointerY:function(event){return Event.pointer(event).y},
stop:function(event){
Event.extend(event);
event.preventDefault();
event.stopPropagation();
event.stopped=true;}};})();
Event.extend=(function(){
var methods=Object.keys(Event.Methods).inject({},function(m,name){
m[name]=Event.Methods[name].methodize();
return m;});
if(Prototype.Browser.IE){
Object.extend(methods,{
stopPropagation:function(){this.cancelBubble=true},
preventDefault:function(){this.returnValue=false},
inspect:function(){return "[object Event]"}});
return function(event){
if(!event)return false;
if(event._extendedByPrototype)return event;
event._extendedByPrototype=Prototype.emptyFunction;
var pointer=Event.pointer(event);
Object.extend(event,{
target:event.srcElement,
relatedTarget:Event.relatedTarget(event),
pageX:pointer.x,
pageY:pointer.y});
return Object.extend(event,methods);};}else{
Event.prototype=Event.prototype||document.createEvent("HTMLEvents").__proto__;
Object.extend(Event.prototype,methods);
return Prototype.K;}})();
Object.extend(Event,(function(){
var cache=Event.cache;
function getEventID(element){
if(element._prototypeEventID)return element._prototypeEventID[0];
arguments.callee.id=arguments.callee.id||1;
return element._prototypeEventID=[++arguments.callee.id];}
function getDOMEventName(eventName){
if(eventName&&eventName.include(':'))return "dataavailable";
return eventName;}
function getCacheForID(id){
return cache[id]=cache[id]||{};}
function getWrappersForEventName(id,eventName){
var c=getCacheForID(id);
return c[eventName]=c[eventName]||[];}
function createWrapper(element,eventName,handler){
var id=getEventID(element);
var c=getWrappersForEventName(id,eventName);
if(c.pluck("handler").include(handler))return false;
var wrapper=function(event){
if(!Event||!Event.extend||(event.eventName&&event.eventName!=eventName))
return false;
Event.extend(event);
handler.call(element,event);};
wrapper.handler=handler;
c.push(wrapper);
return wrapper;}
function findWrapper(id,eventName,handler){
var c=getWrappersForEventName(id,eventName);
return c.find(function(wrapper){return wrapper.handler==handler});}
function destroyWrapper(id,eventName,handler){
var c=getCacheForID(id);
if(!c[eventName])return false;
c[eventName]=c[eventName].without(findWrapper(id,eventName,handler));}
function destroyCache(){
for(var id in cache)
for(var eventName in cache[id])
cache[id][eventName]=null;}
if(window.attachEvent){
window.attachEvent("onunload",destroyCache);}
return{
observe:function(element,eventName,handler){
element=$(element);
var name=getDOMEventName(eventName);
var wrapper=createWrapper(element,eventName,handler);
if(!wrapper)return element;
if(element.addEventListener){
element.addEventListener(name,wrapper,false);}else{
element.attachEvent("on"+name,wrapper);}
return element;},
stopObserving:function(element,eventName,handler){
element=$(element);
var id=getEventID(element),name=getDOMEventName(eventName);
if(!handler&&eventName){
getWrappersForEventName(id,eventName).each(function(wrapper){
element.stopObserving(eventName,wrapper.handler);});
return element;}else if(!eventName){
Object.keys(getCacheForID(id)).each(function(eventName){
element.stopObserving(eventName);});
return element;}
var wrapper=findWrapper(id,eventName,handler);
if(!wrapper)return element;
if(element.removeEventListener){
element.removeEventListener(name,wrapper,false);}else{
element.detachEvent("on"+name,wrapper);}
destroyWrapper(id,eventName,handler);
return element;},
fire:function(element,eventName,memo){
element=$(element);
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="ondataavailable";}
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);
Element.addMethods({
fire:Event.fire,
observe:Event.observe,
stopObserving:Event.stopObserving});
Object.extend(document,{
fire:Element.Methods.fire.methodize(),
observe:Element.Methods.observe.methodize(),
stopObserving:Element.Methods.stopObserving.methodize(),
loaded:false});(function(){
var timer;
function fireContentLoadedEvent(){
if(document.loaded)return;
if(timer)window.clearInterval(timer);
document.fire("dom:loaded");
document.loaded=true;}
if(document.addEventListener){
if(Prototype.Browser.WebKit){
timer=window.setInterval(function(){
if(/loaded|complete/.test(document.readyState))
fireContentLoadedEvent();},0);
Event.observe(window,"load",fireContentLoadedEvent);}else{
document.addEventListener("DOMContentLoaded",
fireContentLoadedEvent,false);}}else{
document.write("<script id=__onDOMContentLoaded defer src=//:><\/script>");
$("__onDOMContentLoaded").onreadystatechange=function(){
if(this.readyState=="complete"){
this.onreadystatechange=null;
fireContentLoadedEvent();}};}})();
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);
Element.addMethods();