/* Prototype JavaScript framework, version 1.5.1
* (c) 2005-2007 Sam Stephenson
*
* Prototype is freely distributable under the terms of an MIT-style license.
* For details, see the Prototype web site: http://www.prototypejs.org/
*
/*--------------------------------------------------------------------------*/
var Prototype={
Version: '1.5.1',
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},
BrowserFeatures: {
XPath: !!document.evaluate,
ElementExtensions: !!window.HTMLElement,
SpecificElementExtensions:
(document.createElement('div').__proto__ !==
document.createElement('form').__proto__)},
ScriptFragment: '<script[^>]*>([\u0001-\uFFFF]*?)</script>',
JSONFilter: /^\/\*-secure-\s*(.*)\s*\*\/\s*$/,
emptyFunction: function(){ },
K: function(x){ return x }}
var Class={
create: function(){
return function(){
this.initialize.apply(this,arguments);}}}
var Abstract=new Object();
Object.extend=function(destination,source){
for (var property in source){
destination[property]=source[property];}
return destination;}
Object.extend(Object,{
inspect: function(object){
try {
if (object===undefined) return 'undefined';
if (object===null) return 'null';
return object.inspect ? object.inspect():object.toString();} catch (e){
if (e instanceof RangeError) return '...';
throw e;}},
toJSON: function(object){
var type=typeof object;
switch(type){
case 'undefined':
case 'function':
case 'unknown': return;
case 'boolean': return object.toString();}
if (object===null) return 'null';
if (object.toJSON) return object.toJSON();
if (object.ownerDocument===document) return;
var results=[];
for (var property in object){
var value=Object.toJSON(object[property]);
if (value !==undefined)
results.push(property.toJSON()+': '+value);}
return '{'+results.join(', ')+'}';},
keys: function(object){
var keys=[];
for (var property in object)
keys.push(property);
return keys;},
values: function(object){
var values=[];
for (var property in object)
values.push(object[property]);
return values;},
clone: function(object){
return Object.extend({},object);}});
Function.prototype.bind=function(){
var __method=this,args=$A(arguments),object=args.shift();
return function(){
return __method.apply(object,args.concat($A(arguments)));}}
Function.prototype.bindAsEventListener=function(object){
var __method=this,args=$A(arguments),object=args.shift();
return function(event){
return __method.apply(object,[event || window.event].concat(args));}}
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';}});
Date.prototype.toJSON=function(){
return '"'+this.getFullYear()+'-' +
(this.getMonth()+1).toPaddedString(2)+'-' +
this.getDate().toPaddedString(2)+'T' +
this.getHours().toPaddedString(2)+':' +
this.getMinutes().toPaddedString(2)+':' +
this.getSeconds().toPaddedString(2)+'"';};
var Try={
these: function(){
var returnValue;
for (var i=0,length=arguments.length; i < length; i++){
var lambda=arguments[i];
try {
returnValue=lambda();
break;} catch (e){}}
return returnValue;}}
var PeriodicalExecuter=Class.create();
PeriodicalExecuter.prototype={
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);},
stop: function(){
if (!this.timer) return;
clearInterval(this.timer);
this.timer=null;},
onTimerEvent: function(){
if (!this.currentlyExecuting){
try {
this.currentlyExecuting=true;
this.callback(this);} 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=count===undefined ? 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 this;},
truncate: function(length,truncation){
length=length || 30;
truncation=truncation===undefined ? '...':truncation;
return this.length > length ?
this.slice(0,length - truncation.length)+truncation: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=document.createElement('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 (hash[key].constructor !=Array) 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){
var result='';
for (var i=0; i < count; i++) result +=this;
return result;},
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}');},
evalJSON: function(sanitize){
var json=this.unfilterJSON();
try {
if (!sanitize || (/^("(\\.|[^"\\\n\r])*?"|[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t])+?$/.test(json)))
return eval('('+json+')');} catch (e){ }
throw new SyntaxError('Badly formed JSON string: '+this.inspect());},
include: function(pattern){
return this.indexOf(pattern) > -1;},
startsWith: function(pattern){
return this.indexOf(pattern)===0;},
endsWith: function(pattern){
var d=this.length - pattern.length;
return d >=0 && this.lastIndexOf(pattern)===d;},
empty: function(){
return this=='';},
blank: function(){
return /^\s*$/.test(this);}});
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 (typeof replacement=='function') 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();
Template.Pattern=/(^|.|\r|\n)(#\{(.*?)\})/;
Template.prototype={
initialize: function(template,pattern){
this.template=template.toString();
this.pattern=pattern || Template.Pattern;},
evaluate: function(object){
return this.template.gsub(this.pattern,function(match){
var before=match[1];
if (before=='\\') return match[2];
return before+String.interpret(object[match[3]]);});}}
var $break={},$continue=new Error('"throw $continue" is deprecated, use "return" instead');
var Enumerable={
each: function(iterator){
var index=0;
try {
this._each(function(value){
iterator(value,index++);});} catch (e){
if (e !=$break) throw e;}
return this;},
eachSlice: function(number,iterator){
var index=-number,slices=[],array=this.toArray();
while ((index +=number) < array.length)
slices.push(array.slice(index,index+number));
return slices.map(iterator);},
all: function(iterator){
var result=true;
this.each(function(value,index){
result=result && !!(iterator || Prototype.K)(value,index);
if (!result) throw $break;});
return result;},
any: function(iterator){
var result=false;
this.each(function(value,index){
if (result=!!(iterator || Prototype.K)(value,index))
throw $break;});
return result;},
collect: function(iterator){
var results=[];
this.each(function(value,index){
results.push((iterator || Prototype.K)(value,index));});
return results;},
detect: function(iterator){
var result;
this.each(function(value,index){
if (iterator(value,index)){
result=value;
throw $break;}});
return result;},
findAll: function(iterator){
var results=[];
this.each(function(value,index){
if (iterator(value,index))
results.push(value);});
return results;},
grep: function(pattern,iterator){
var results=[];
this.each(function(value,index){
var stringValue=value.toString();
if (stringValue.match(pattern))
results.push((iterator || Prototype.K)(value,index));})
return results;},
include: function(object){
var found=false;
this.each(function(value){
if (value==object){
found=true;
throw $break;}});
return found;},
inGroupsOf: function(number,fillWith){
fillWith=fillWith===undefined ? null:fillWith;
return this.eachSlice(number,function(slice){
while(slice.length < number) slice.push(fillWith);
return slice;});},
inject: function(memo,iterator){
this.each(function(value,index){
memo=iterator(memo,value,index);});
return memo;},
invoke: function(method){
var args=$A(arguments).slice(1);
return this.map(function(value){
return value[method].apply(value,args);});},
max: function(iterator){
var result;
this.each(function(value,index){
value=(iterator || Prototype.K)(value,index);
if (result==undefined || value >=result)
result=value;});
return result;},
min: function(iterator){
var result;
this.each(function(value,index){
value=(iterator || Prototype.K)(value,index);
if (result==undefined || value < result)
result=value;});
return result;},
partition: function(iterator){
var trues=[],falses=[];
this.each(function(value,index){
((iterator || Prototype.K)(value,index) ?
trues:falses).push(value);});
return [trues,falses];},
pluck: function(property){
var results=[];
this.each(function(value,index){
results.push(value[property]);});
return results;},
reject: function(iterator){
var results=[];
this.each(function(value,index){
if (!iterator(value,index))
results.push(value);});
return results;},
sortBy: function(iterator){
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=$A(arguments);
if (typeof args.last()=='function')
iterator=args.pop();
var collections=[this].concat(args).map($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,
member:Enumerable.include,
entries:Enumerable.toArray});
var $A=Array.from=function(iterable){
if (!iterable) return [];
if (iterable.toArray){
return iterable.toArray();} else {
var results=[];
for (var i=0,length=iterable.length; i < length; i++)
results.push(iterable[i]);
return results;}}
if (Prototype.Browser.WebKit){
$A=Array.from=function(iterable){
if (!iterable) return [];
if (!(typeof iterable=='function' && iterable=='[object NodeList]') &&
iterable.toArray){
return iterable.toArray();} else {
var results=[];
for (var i=0,length=iterable.length; i < length; i++)
results.push(iterable[i]);
return results;}}}
Object.extend(Array.prototype,Enumerable);
if (!Array.prototype._reverse)
Array.prototype._reverse=Array.prototype.reverse;
Object.extend(Array.prototype,{
_each: function(iterator){
for (var i=0,length=this.length; i < length; i++)
iterator(this[i]);},
clear: function(){
this.length=0;
return this;},
first: function(){
return this[0];},
last: function(){
return this[this.length - 1];},
compact: function(){
return this.select(function(value){
return value !=null;});},
flatten: function(){
return this.inject([],function(array,value){
return array.concat(value && value.constructor==Array ?
value.flatten():[value]);});},
without: function(){
var values=$A(arguments);
return this.select(function(value){
return !values.include(value);});},
indexOf: function(object){
for (var i=0,length=this.length; i < length; i++)
if (this[i]==object) return i;
return -1;},
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;});},
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 (value !==undefined) results.push(value);});
return '['+results.join(', ')+']';}});
Array.prototype.toArray=Array.prototype.clone;
function $w(string){
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 (arguments[i].constructor==Array){
for (var j=0,arrayLength=arguments[i].length; j < arrayLength; j++)
array.push(arguments[i][j]);} else {
array.push(arguments[i]);}}
return array;}}
var Hash=function(object){
if (object instanceof Hash) this.merge(object);
else Object.extend(this,object || {});};
Object.extend(Hash,{
toQueryString: function(obj){
var parts=[];
parts.add=arguments.callee.addPair;
this.prototype._each.call(obj,function(pair){
if (!pair.key) return;
var value=pair.value;
if (value && typeof value=='object'){
if (value.constructor==Array) value.each(function(value){
parts.add(pair.key,value);});
return;}
parts.add(pair.key,value);});
return parts.join('&');},
toJSON: function(object){
var results=[];
this.prototype._each.call(object,function(pair){
var value=Object.toJSON(pair.value);
if (value !==undefined) results.push(pair.key.toJSON()+': '+value);});
return '{'+results.join(', ')+'}';}});
Hash.toQueryString.addPair=function(key,value,prefix){
key=encodeURIComponent(key);
if (value===undefined) this.push(key);
else this.push(key+'='+(value==null ? '':encodeURIComponent(value)));}
Object.extend(Hash.prototype,Enumerable);
Object.extend(Hash.prototype,{
_each: function(iterator){
for (var key in this){
var value=this[key];
if (value && value==Hash.prototype[key]) continue;
var pair=[key,value];
pair.key=key;
pair.value=value;
iterator(pair);}},
keys: function(){
return this.pluck('key');},
values: function(){
return this.pluck('value');},
merge: function(hash){
return $H(hash).inject(this,function(mergedHash,pair){
mergedHash[pair.key]=pair.value;
return mergedHash;});},
remove: function(){
var result;
for(var i=0,length=arguments.length; i < length; i++){
var value=this[arguments[i]];
if (value !==undefined){
if (result===undefined) result=value;
else {
if (result.constructor !=Array) result=[result];
result.push(value)}}
delete this[arguments[i]];}
return result;},
toQueryString: function(){
return Hash.toQueryString(this);},
inspect: function(){
return '#<Hash:{'+this.map(function(pair){
return pair.map(Object.inspect).join(': ');}).join(', ')+'}>';},
toJSON: function(){
return Hash.toJSON(this);}});
function $H(object){
if (object instanceof Hash) return object;
return new Hash(object);};
if (function(){
var i=0,Test=function(value){ this.key=value };
Test.prototype.key='foo';
for (var property in new Test('bar')) i++;
return i > 1;}()) Hash.prototype._each=function(iterator){
var cache=[];
for (var key in this){
var value=this[key];
if ((value && value==Hash.prototype[key]) || cache.include(key)) continue;
cache.push(key);
var pair=[key,value];
pair.key=key;
pair.value=value;
iterator(pair);}};
ObjectRange=Class.create();
Object.extend(ObjectRange.prototype,Enumerable);
Object.extend(ObjectRange.prototype,{
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 (typeof responder[callback]=='function'){
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=function(){};
Ajax.Base.prototype={
setOptions: function(options){
this.options={
method:'post',
asynchronous:true,
contentType:'application/x-www-form-urlencoded',
encoding:'UTF-8',
parameters:''}
Object.extend(this.options,options || {});
this.options.method=this.options.method.toLowerCase();
if (typeof this.options.parameters=='string')
this.options.parameters=this.options.parameters.toQueryParams();}}
Ajax.Request=Class.create();
Ajax.Request.Events=
['Uninitialized','Loading','Loaded','Interactive','Complete'];
Ajax.Request.prototype=Object.extend(new Ajax.Base(),{
_complete: false,
initialize: function(url,options){
this.transport=Ajax.getTransport();
this.setOptions(options);
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=Hash.toQueryString(params)){
if (this.method=='get')
this.url +=(this.url.include('?') ? '&':'?')+params;
else if (/Konqueror|Safari|KHTML/.test(navigator.userAgent))
params +='&_=';}
try {
if (this.options.onCreate) this.options.onCreate(this.transport);
Ajax.Responders.dispatch('onCreate',this,this.transport);
this.transport.open(this.method.toUpperCase(),this.url,
this.options.asynchronous);
if (this.options.asynchronous)
setTimeout(function(){ this.respondToReadyState(1) }.bind(this),10);
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 (typeof extras.push=='function')
for (var i=0,length=extras.length; i < length; i +=2)
headers[extras[i]]=extras[i+1];
else
$H(extras).each(function(pair){ headers[pair.key]=pair.value });}
for (var name in headers)
this.transport.setRequestHeader(name,headers[name]);},
success: function(){
return !this.transport.status
|| (this.transport.status >=200 && this.transport.status < 300);},
respondToReadyState: function(readyState){
var state=Ajax.Request.Events[readyState];
var transport=this.transport,json=this.evalJSON();
if (state=='Complete'){
try {
this._complete=true;
(this.options['on'+this.transport.status]
|| this.options['on'+(this.success() ? 'Success':'Failure')]
|| Prototype.emptyFunction)(transport,json);} catch (e){
this.dispatchException(e);}
var contentType=this.getHeader('Content-type');
if (contentType && contentType.strip().
match(/^(text|application)\/(x-)?(java|ecma)script(;.*)?$/i))
this.evalResponse();}
try {
(this.options['on'+state] || Prototype.emptyFunction)(transport,json);
Ajax.Responders.dispatch('on'+state,this,transport,json);} catch (e){
this.dispatchException(e);}
if (state=='Complete'){
this.transport.onreadystatechange=Prototype.emptyFunction;}},
getHeader: function(name){
try {
return this.transport.getResponseHeader(name);} catch (e){ return null }},
evalJSON: function(){
try {
var json=this.getHeader('X-JSON');
return json ? json.evalJSON():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.Updater=Class.create();
Object.extend(Object.extend(Ajax.Updater.prototype,Ajax.Request.prototype),{
initialize: function(container,url,options){
this.container={
success: (container.success || container),
failure: (container.failure || (container.success ? null:container))}
this.transport=Ajax.getTransport();
this.setOptions(options);
var onComplete=this.options.onComplete || Prototype.emptyFunction;
this.options.onComplete=(function(transport,param){
this.updateContent();
onComplete(transport,param);}).bind(this);
this.request(url);},
updateContent: function(){
var receiver=this.container[this.success() ? 'success':'failure'];
var response=this.transport.responseText;
if (!this.options.evalScripts) response=response.stripScripts();
if (receiver=$(receiver)){
if (this.options.insertion)
new this.options.insertion(receiver,response);
else
receiver.update(response);}
if (this.success()){
if (this.onComplete)
setTimeout(this.onComplete.bind(this),10);}}});
Ajax.PeriodicalUpdater=Class.create();
Ajax.PeriodicalUpdater.prototype=Object.extend(new Ajax.Base(),{
initialize: function(container,url,options){
this.setOptions(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(request){
if (this.options.decay){
this.decay=(request.responseText==this.lastText ?
this.decay * this.options.decay:1);
this.lastText=request.responseText;}
this.timer=setTimeout(this.onTimerEvent.bind(this),
this.decay * this.frequency * 1000);},
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 (typeof element=='string')
element=document.getElementById(element);
return Element.extend(element);}
if (Prototype.BrowserFeatures.XPath){
document._getElementsByXPath=function(expression,parentElement){
var results=[];
var query=document.evaluate(expression,$(parentElement) || document,
null,XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,null);
for (var i=0,length=query.snapshotLength; i < length; i++)
results.push(query.snapshotItem(i));
return results;};
document.getElementsByClassName=function(className,parentElement){
var q=".//*[contains(concat(' ', @class, ' '), ' "+className+" ')]";
return document._getElementsByXPath(q, parentElement);}} else document.getElementsByClassName=function(className,parentElement){
var children=($(parentElement) || document.body).getElementsByTagName('*');
var elements=[],child;
for (var i=0,length=children.length; i < length; i++){
child=children[i];
if (Element.hasClassName(child,className))
elements.push(Element.extend(child));}
return elements;};
if (!window.Element) var Element={};
Element.extend=function(element){
var F=Prototype.BrowserFeatures;
if (!element || !element.tagName || element.nodeType==3 ||
element._extended || F.SpecificElementExtensions || element==window)
return element;
var methods={},tagName=element.tagName,cache=Element.extend.cache,
T=Element.Methods.ByTag;
if (!F.ElementExtensions){
Object.extend(methods,Element.Methods),
Object.extend(methods,Element.Methods.Simulated);}
if (T[tagName]) Object.extend(methods,T[tagName]);
for (var property in methods){
var value=methods[property];
if (typeof value=='function' && !(property in element))
element[property]=cache.findOrStore(value);}
element._extended=Prototype.emptyFunction;
return element;};
Element.extend.cache={
findOrStore: function(value){
return this[value]=this[value] || function(){
return value.apply(null,[this].concat($A(arguments)));}}};
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,html){
html=typeof html=='undefined' ? '':html.toString();
$(element).innerHTML=html.stripScripts();
setTimeout(function(){html.evalScripts()},10);
return element;},
replace: function(element,html){
element=$(element);
html=typeof html=='undefined' ? '':html.toString();
if (element.outerHTML){
element.outerHTML=html.stripScripts();} else {
var range=element.ownerDocument.createRange();
range.selectNodeContents(element);
element.parentNode.replaceChild(
range.createContextualFragment(html.stripScripts()),element);}
setTimeout(function(){html.evalScripts()},10);
return element;},
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 $A($(element).getElementsByTagName('*')).each(Element.extend);},
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 (typeof selector=='string')
selector=new Selector(selector);
return selector.match($(element));},
up: function(element,expression,index){
element=$(element);
if (arguments.length==1) return $(element.parentNode);
var ancestors=element.ancestors();
return expression ? Selector.findElement(ancestors,expression,index) :
ancestors[index || 0];},
down: function(element,expression,index){
element=$(element);
if (arguments.length==1) return element.firstDescendant();
var descendants=element.descendants();
return expression ? Selector.findElement(descendants,expression,index) :
descendants[index || 0];},
previous: function(element,expression,index){
element=$(element);
if (arguments.length==1) return $(Selector.handlers.previousElementSibling(element));
var previousSiblings=element.previousSiblings();
return expression ? Selector.findElement(previousSiblings,expression,index) :
previousSiblings[index || 0];},
next: function(element,expression,index){
element=$(element);
if (arguments.length==1) return $(Selector.handlers.nextElementSibling(element));
var nextSiblings=element.nextSiblings();
return expression ? Selector.findElement(nextSiblings,expression,index) :
nextSiblings[index || 0];},
getElementsBySelector: function(){
var args=$A(arguments),element=$(args.shift());
return Selector.findChildElements(element,args);},
getElementsByClassName: function(element,className){
return document.getElementsByClassName(className,element);},
readAttribute: function(element,name){
element=$(element);
if (Prototype.Browser.IE){
if (!element.attributes) return null;
var t=Element._attributeTranslations;
if (t.values[name]) return t.values[name](element,name);
if (t.names[name])name=t.names[name];
var attribute=element.attributes[name];
return attribute ? attribute.nodeValue:null;}
return element.getAttribute(name);},
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;
if (elementClassName.length==0) return false;
if (elementClassName==className ||
elementClassName.match(new RegExp("(^|\\s)"+className+"(\\s|$)")))
return true;
return false;},
addClassName: function(element,className){
if (!(element=$(element))) return;
Element.classNames(element).add(className);
return element;},
removeClassName: function(element,className){
if (!(element=$(element))) return;
Element.classNames(element).remove(className);
return element;},
toggleClassName: function(element,className){
if (!(element=$(element))) return;
Element.classNames(element)[element.hasClassName(className) ? 'remove':'add'](className);
return element;},
observe: function(){
Event.observe.apply(Event,arguments);
return $A(arguments).first();},
stopObserving: function(){
Event.stopObserving.apply(Event,arguments);
return $A(arguments).first();},
cleanWhitespace: function(element){
element=$(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=$(ancestor);
while (element=element.parentNode)
if (element==ancestor) return true;
return false;},
scrollTo: function(element){
element=$(element);
var pos=Position.cumulativeOffset(element);
window.scrollTo(pos[0],pos[1]);
return element;},
getStyle: function(element,style){
element=$(element);
style=style=='float' ? 'cssFloat':style.camelize();
var value=element.style[style];
if (!value){
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 $(element).getStyle('opacity');},
setStyle: function(element,styles,camelized){
element=$(element);
var elementStyle=element.style;
for (var property in styles)
if (property=='opacity') element.setOpacity(styles[property])
else
elementStyle[(property=='float' || property=='cssFloat') ?
(elementStyle.styleFloat===undefined ? 'cssFloat':'styleFloat') :
(camelized ? property:property.camelize())]=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.style.overflow || 'auto';
if ((Element.getStyle(element,'overflow') || 'visible') !='hidden')
element.style.overflow='hidden';
return element;},
undoClipping: function(element){
element=$(element);
if (!element._overflow) return element;
element.style.overflow=element._overflow=='auto' ? '':element._overflow;
element._overflow=null;
return element;}};
Object.extend(Element.Methods,{
childOf: Element.Methods.descendantOf,
childElements: Element.Methods.immediateDescendants});
if (Prototype.Browser.Opera){
Element.Methods._getStyle=Element.Methods.getStyle;
Element.Methods.getStyle=function(element,style){
switch(style){
case 'left':
case 'top':
case 'right':
case 'bottom':
if (Element._getStyle(element,'position')=='static') return null;
default: return Element._getStyle(element,style);}};}
else if (Prototype.Browser.IE){
Element.Methods.getStyle=function(element,style){
element=$(element);
style=(style=='float' || style=='cssFloat') ? 'styleFloat':style.camelize();
var value=element.style[style];
if (!value && element.currentStyle) value=element.currentStyle[style];
if (style=='opacity'){
if (value=(element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
if (value[1]) return parseFloat(value[1]) / 100;
return 1.0;}
if (value=='auto'){
if ((style=='width' || style=='height') && (element.getStyle('display') !='none'))
return element['offset'+style.capitalize()]+'px';
return null;}
return value;};
Element.Methods.setOpacity=function(element,value){
element=$(element);
var filter=element.getStyle('filter'),style=element.style;
if (value==1 || value===''){
style.filter=filter.replace(/alpha\([^\)]*\)/gi,'');
return element;} else if (value < 0.00001) value=0;
style.filter=filter.replace(/alpha\([^\)]*\)/gi, '') +
'alpha(opacity='+(value * 100)+')';
return element;};
Element.Methods.update=function(element, html){
element=$(element);
html=typeof html=='undefined' ? '':html.toString();
var tagName=element.tagName.toUpperCase();
if (['THEAD','TBODY','TR','TD'].include(tagName)){
var div=document.createElement('div');
switch (tagName){
case 'THEAD':
case 'TBODY':
div.innerHTML='<table><tbody>' +html.stripScripts()+'</tbody></table>';
depth=2;
break;
case 'TR':
div.innerHTML='<table><tbody><tr>' +html.stripScripts()+'</tr></tbody></table>';
depth=3;
break;
case 'TD':
div.innerHTML='<table><tbody><tr><td>' +html.stripScripts()+'</td></tr></tbody></table>';
depth=4;}
$A(element.childNodes).each(function(node){ element.removeChild(node) });
depth.times(function(){ div=div.firstChild });
$A(div.childNodes).each(function(node){ element.appendChild(node) });} else {
element.innerHTML=html.stripScripts();}
setTimeout(function(){ html.evalScripts() },10);
return element;}}
else if (Prototype.Browser.Gecko){
Element.Methods.setOpacity=function(element,value){
element=$(element);
element.style.opacity=(value==1) ? 0.999999 :
(value==='') ? '':(value < 0.00001) ? 0:value;
return element;};}
Element._attributeTranslations={
names: {
colspan:"colSpan",
rowspan:"rowSpan",
valign:"vAlign",
datetime:"dateTime",
accesskey:"accessKey",
tabindex:"tabIndex",
enctype:"encType",
maxlength:"maxLength",
readonly:"readOnly",
longdesc:"longDesc"},
values: {
_getAttr: function(element,attribute){
return element.getAttribute(attribute,2);},
_flag: function(element,attribute){
return $(element).hasAttribute(attribute) ? attribute:null;},
style: function(element){
return element.style.cssText.toLowerCase();},
title: function(element){
var node=element.getAttributeNode('title');
return node.specified ? node.nodeValue:null;}}};
(function(){
Object.extend(this,{
href:this._getAttr,
src:this._getAttr,
type:this._getAttr,
disabled:this._flag,
checked:this._flag,
readonly:this._flag,
multiple:this._flag});}).call(Element._attributeTranslations.values);
Element.Methods.Simulated={
hasAttribute: function(element,attribute){
var t=Element._attributeTranslations,node;
attribute=t.names[attribute] || attribute;
node=$(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.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 (tagName.constructor==Array) 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;
var cache=Element.extend.cache;
for (var property in methods){
var value=methods[property];
if (!onlyIfAbsent || !(property in destination))
destination[property]=cache.findOrStore(value);}}
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 (typeof klass=="undefined") continue;
copy(T[tag],klass.prototype);}}
Object.extend(Element,Element.Methods);
delete Element.ByTag;};
var Toggle={ display: Element.toggle };
Abstract.Insertion=function(adjacency){
this.adjacency=adjacency;}
Abstract.Insertion.prototype={
initialize: function(element,content){
this.element=$(element);
this.content=content.stripScripts();
if (this.adjacency && this.element.insertAdjacentHTML){
try {
this.element.insertAdjacentHTML(this.adjacency,this.content);} catch (e){
var tagName=this.element.tagName.toUpperCase();
if (['TBODY','TR'].include(tagName)){
this.insertContent(this.contentFromAnonymousTable());} else {
throw e;}}} else {
this.range=this.element.ownerDocument.createRange();
if (this.initializeRange) this.initializeRange();
this.insertContent([this.range.createContextualFragment(this.content)]);}
setTimeout(function(){content.evalScripts()},10);},
contentFromAnonymousTable: function(){
var div=document.createElement('div');
div.innerHTML='<table><tbody>'+this.content+'</tbody></table>';
return $A(div.childNodes[0].childNodes[0].childNodes);}}
var Insertion=new Object();
Insertion.Before=Class.create();
Insertion.Before.prototype=Object.extend(new Abstract.Insertion('beforeBegin'),{
initializeRange: function(){
this.range.setStartBefore(this.element);},
insertContent: function(fragments){
fragments.each((function(fragment){
this.element.parentNode.insertBefore(fragment,this.element);}).bind(this));}});
Insertion.Top=Class.create();
Insertion.Top.prototype=Object.extend(new Abstract.Insertion('afterBegin'),{
initializeRange: function(){
this.range.selectNodeContents(this.element);
this.range.collapse(true);},
insertContent: function(fragments){
fragments.reverse(false).each((function(fragment){
this.element.insertBefore(fragment,this.element.firstChild);}).bind(this));}});
Insertion.Bottom=Class.create();
Insertion.Bottom.prototype=Object.extend(new Abstract.Insertion('beforeEnd'),{
initializeRange: function(){
this.range.selectNodeContents(this.element);
this.range.collapse(this.element);},
insertContent: function(fragments){
fragments.each((function(fragment){
this.element.appendChild(fragment);}).bind(this));}});
Insertion.After=Class.create();
Insertion.After.prototype=Object.extend(new Abstract.Insertion('afterEnd'),{
initializeRange: function(){
this.range.setStartAfter(this.element);},
insertContent: function(fragments){
fragments.each((function(fragment){
this.element.parentNode.insertBefore(fragment,
this.element.nextSibling);}).bind(this));}});
Element.ClassNames=Class.create();
Element.ClassNames.prototype={
initialize: function(element){
this.element=$(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);
var Selector=Class.create();
Selector.prototype={
initialize: function(expression){
this.expression=expression.strip();
this.compileMatcher();},
compileMatcher: function(){
if (Prototype.BrowserFeatures.XPath && !(/\[[\w-]*?:/).test(this.expression))
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(typeof c[i]=='function' ? 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(typeof x[i]=='function' ? 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){
return this.findElements(document).include(element);},
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:"[@#{1}]",
attr: function(m){
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 (typeof h==='function') return h(m);
return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m);},
operators: {
'=':"[@#{1}='#{3}']",
'!=':"[@#{1}!='#{3}']",
'^=':"[starts-with(@#{1}, '#{3}')]",
'$=':"[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",
'*=':"[contains(@#{1}, '#{3}')]",
'~=':"[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
'|=':"[contains(concat('-', @#{1}, '-'), '-#{3}-')]"},
pseudos: {
'first-child':'[not(preceding-sibling::*)]',
'last-child':'[not(following-sibling::*)]',
'only-child':'[not(preceding-sibling::* or following-sibling::*)]',
'empty':"[count(*) = 0 and (count(text()) = 0 or translate(text(), ' \t\r\n', '') = '')]",
'checked':"[@checked]",
'disabled':"[@disabled]",
'enabled':"[not(@disabled)]",
'not': function(m){
var e=m[6], p=Selector.patterns,
x=Selector.xpath,le,m,v;
var exclusion=[];
while (e && le !=e && (/\S/).test(e)){
le=e;
for (var i in p){
if (m=e.match(p[i])){
v=typeof x[i]=='function' ? x[i](m):new Template(x[i]).evaluate(m);
exclusion.push("("+v.substring(1,v.length - 1)+")");
e=e.replace(m[0],'');
break;}}}
return "[not("+exclusion.join(" and ")+")]";},
'nth-child':function(m){
return Selector.xpath.pseudos.nth("(count(./preceding-sibling::*) + 1) ",m);},
'nth-last-child': function(m){
return Selector.xpath.pseudos.nth("(count(./following-sibling::*) + 1) ",m);},
'nth-of-type':function(m){
return Selector.xpath.pseudos.nth("position() ",m);},
'nth-last-of-type': function(m){
return Selector.xpath.pseudos.nth("(last() + 1 - position()) ",m);},
'first-of-type':function(m){
m[6]="1"; return Selector.xpath.pseudos['nth-of-type'](m);},
'last-of-type':function(m){
m[6]="1"; return Selector.xpath.pseudos['nth-last-of-type'](m);},
'only-of-type':function(m){
var p=Selector.xpath.pseudos; return p['first-of-type'](m) + p['last-of-type'](m);},
nth: function(fragment,m){
var mm,formula=m[6],predicate;
if (formula=='even') formula='2n+0';
if (formula=='odd') formula='2n+1';
if (mm=formula.match(/^(\d+)$/))
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 = false;',
attr: function(m){
m[3]=(m[5] || m[6]);
return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}"); 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|([^'"][^\]]*?)))?\]/},
handlers: {
concat: function(a, b){
for (var i=0,node; node=b[i]; i++)
a.push(node);
return a;},
mark: function(nodes){
for (var i=0,node; node=nodes[i]; i++)
node._counted=true;
return nodes;},
unmark: function(nodes){
for (var i=0,node; node=nodes[i]; i++)
node._counted=undefined;
return nodes;},
index: function(parentNode,reverse,ofType){
parentNode._counted=true;
if (reverse){
for (var nodes=parentNode.childNodes,i=nodes.length - 1,j=1; i >=0; i--){
node=nodes[i];
if (node.nodeType==1 && (!ofType || node._counted)) node.nodeIndex=j++;}} else {
for (var i=0,j=1,nodes=parentNode.childNodes; node=nodes[i]; i++)
if (node.nodeType==1 && (!ofType || node._counted)) 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])._counted){
n._counted=true;
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,children=[],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){
tagName=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()==tagName) results.push(node);
return results;} else return root.getElementsByTagName(tagName);},
id: function(nodes,root,id,combinator){
var targetNode=$(id),h=Selector.handlers;
if (!nodes && root==document) return targetNode ? [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){
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){
if (!nodes) nodes=root.getElementsByTagName("*");
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 $R(1,total).inject([],function(memo,i){
if (0==(i - b) % a && (i - b) / a >=0) memo.push(i);
return memo;});},
nth: function(nodes,formula,root,reverse,ofType){
if (nodes.length==0) return [];
if (formula=='even') formula='2n+0';
if (formula=='odd') formula='2n+1';
var h=Selector.handlers,results=[],indexed=[],m;
h.mark(nodes);
for (var i=0,node; node=nodes[i]; i++){
if (!node.parentNode._counted){
h.index(node.parentNode,reverse,ofType);
indexed.push(node.parentNode);}}
if (formula.match(/^\d+$/)){
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*$/))) continue;
results.push(node);}
return results;},
'not': function(nodes,selector,root){
var h=Selector.handlers,selectorType,m;
var exclusions=new Selector(selector).findElements(root);
h.mark(exclusions);
for (var i=0,results=[],node; node=nodes[i]; i++)
if (!node._counted) results.push(node);
h.unmark(exclusions);
return results;},
'enabled': function(nodes,value,root){
for (var i=0,results=[],node; node=nodes[i]; i++)
if (!node.disabled) results.push(node);
return results;},
'disabled': function(nodes,value,root){
for (var i=0,results=[],node; node=nodes[i]; i++)
if (node.disabled) results.push(node);
return results;},
'checked': function(nodes,value,root){
for (var i=0,results=[],node; node=nodes[i]; i++)
if (node.checked) results.push(node);
return results;}},
operators: {
'=':function(nv,v){ return nv==v; },
'!=':function(nv,v){ return nv !=v; },
'^=':function(nv,v){ return nv.startsWith(v); },
'$=':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()+'-'); }},
matchElements: function(elements,expression){
var matches=new Selector(expression).findElements(),h=Selector.handlers;
h.mark(matches);
for (var i=0,results=[],element; element=elements[i]; i++)
if (element._counted) results.push(element);
h.unmark(matches);
return results;},
findElement: function(elements,expression,index){
if (typeof expression=='number'){
index=expression; expression=false;}
return Selector.matchElements(elements,expression || '*')[index || 0];},
findChildElements: function(element,expressions){
var exprs=expressions.join(','),expressions=[];
exprs.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/,function(m){
expressions.push(m[1].strip());});
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;}});
function $$(){
return Selector.findChildElements(document,$A(arguments));}
var Form={
reset: function(form){
$(form).reset();
return form;},
serializeElements: function(elements,getHash){
var data=elements.inject({},function(result,element){
if (!element.disabled && element.name){
var key=element.name,value=$(element).getValue();
if (value !=null){
if (key in result){
if (result[key].constructor !=Array) result[key]=[result[key]];
result[key].push(value);}
else result[key]=value;}}
return result;});
return getHash ? data:Hash.toQueryString(data);}};
Form.Methods={
serialize: function(form,getHash){
return Form.serializeElements(Form.getElements(form),getHash);},
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){
return $(form).getElements().find(function(element){
return element.type !='hidden' && !element.disabled &&
['input','select','textarea'].include(element.tagName.toLowerCase());});},
focusFirstElement: function(form){
form=$(form);
form.findFirstElement().activate();
return form;},
request: function(form,options){
form=$(form),options=Object.clone(options || {});
var params=options.parameters;
options.parameters=form.serialize(true);
if (params){
if (typeof params=='string') params=params.toQueryParams();
Object.extend(options.parameters,params);}
if (form.hasAttribute('method') && !options.method)
options.method=form.method;
return new Ajax.Request(form.readAttribute('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 Hash.toQueryString(pair);}}
return '';},
getValue: function(element){
element=$(element);
var method=element.tagName.toLowerCase();
return Form.Element.Serializers[method](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 $F=Form.Element.Methods.getValue;
Form.Element.Serializers={
input: function(element){
switch (element.type.toLowerCase()){
case 'checkbox':
case 'radio':
return Form.Element.Serializers.inputSelector(element);
default:
return Form.Element.Serializers.textarea(element);}},
inputSelector: function(element){
return element.checked ? element.value:null;},
textarea: function(element){
return element.value;},
select: function(element){
return this[element.type=='select-one' ?
'selectOne':'selectMany'](element);},
selectOne: function(element){
var index=element.selectedIndex;
return index >=0 ? this.optionValue(element.options[index]):null;},
selectMany: function(element){
var values,length=element.length;
if (!length) return null;
for (var i=0,values=[]; i < length; i++){
var opt=element.options[i];
if (opt.selected) values.push(this.optionValue(opt));}
return values;},
optionValue: function(opt){
return Element.extend(opt).hasAttribute('value') ? opt.value:opt.text;}}
Abstract.TimedObserver=function(){}
Abstract.TimedObserver.prototype={
initialize: function(element,frequency,callback){
this.frequency=frequency;
this.element=$(element);
this.callback=callback;
this.lastValue=this.getValue();
this.registerCallback();},
registerCallback: function(){
setInterval(this.onTimerEvent.bind(this),this.frequency * 1000);},
onTimerEvent: function(){
var value=this.getValue();
var changed=('string'==typeof this.lastValue && 'string'==typeof value
? this.lastValue !=value:String(this.lastValue) !=String(value));
if (changed){
this.callback(this.element,value);
this.lastValue=value;}}}
Form.Element.Observer=Class.create();
Form.Element.Observer.prototype=Object.extend(new Abstract.TimedObserver(),{
getValue: function(){
return Form.Element.getValue(this.element);}});
Form.Observer=Class.create();
Form.Observer.prototype=Object.extend(new Abstract.TimedObserver(),{
getValue: function(){
return Form.serialize(this.element);}});
Abstract.EventObserver=function(){}
Abstract.EventObserver.prototype={
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.bind(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();
Form.Element.EventObserver.prototype=Object.extend(new Abstract.EventObserver(),{
getValue: function(){
return Form.Element.getValue(this.element);}});
Form.EventObserver=Class.create();
Form.EventObserver.prototype=Object.extend(new Abstract.EventObserver(),{
getValue: function(){
return Form.serialize(this.element);}});
if (!window.Event){
var Event=new Object();}
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,
element: function(event){
return $(event.target || event.srcElement);},
isLeftClick: function(event){
return (((event.which) && (event.which==1)) ||
((event.button) && (event.button==1)));},
pointerX: function(event){
return event.pageX || (event.clientX +
(document.documentElement.scrollLeft || document.body.scrollLeft));},
pointerY: function(event){
return event.pageY || (event.clientY +
(document.documentElement.scrollTop || document.body.scrollTop));},
stop: function(event){
if (event.preventDefault){
event.preventDefault();
event.stopPropagation();} else {
event.returnValue=false;
event.cancelBubble=true;}},
findElement: function(event,tagName){
var element=Event.element(event);
while (element.parentNode && (!element.tagName ||
(element.tagName.toUpperCase() !=tagName.toUpperCase())))
element=element.parentNode;
return element;},
observers: false,
_observeAndCache: function(element,name,observer,useCapture){
if (!this.observers) this.observers=[];
if (element.addEventListener){
this.observers.push([element,name,observer,useCapture]);
element.addEventListener(name,observer,useCapture);} else if (element.attachEvent){
this.observers.push([element,name,observer,useCapture]);
element.attachEvent('on'+name,observer);}},
unloadCache: function(){
if (!Event.observers) return;
for (var i=0,length=Event.observers.length; i < length; i++){
Event.stopObserving.apply(this,Event.observers[i]);
Event.observers[i][0]=null;}
Event.observers=false;},
observe: function(element,name,observer,useCapture){
element=$(element);
useCapture=useCapture || false;
if (name=='keypress' &&
(Prototype.Browser.WebKit || element.attachEvent))
name='keydown';
Event._observeAndCache(element,name,observer,useCapture);},
stopObserving: function(element,name,observer,useCapture){
element=$(element);
useCapture=useCapture || false;
if (name=='keypress' &&
(Prototype.Browser.WebKit || element.attachEvent))
name='keydown';
if (element.removeEventListener){
element.removeEventListener(name,observer,useCapture);} else if (element.detachEvent){
try {
element.detachEvent('on'+name,observer);} catch (e){}}}});
if (Prototype.Browser.IE)
Event.observe(window,'unload',Event.unloadCache,false);
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;},
realOffset: function(element){
var valueT=0,valueL=0;
do {
valueT +=element.scrollTop || 0;
valueL +=element.scrollLeft || 0;
element=element.parentNode;} while (element);
return [valueL,valueT];},
cumulativeOffset: function(element){
var valueT=0,valueL=0;
do {
valueT +=element.offsetTop || 0;
valueL +=element.offsetLeft || 0;
element=element.offsetParent;} while (element);
return [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=='relative' || p=='absolute') break;}} while (element);
return [valueL,valueT];},
offsetParent: 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;},
within: function(element,x,y){
if (this.includeScrollOffsets)
return this.withinIncludingScrolloffsets(element,x,y);
this.xcomp=x;
this.ycomp=y;
this.offset=this.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=this.realOffset(element);
this.xcomp=x+offsetcache[0] - this.deltaX;
this.ycomp=y+offsetcache[1] - this.deltaY;
this.offset=this.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;},
page: function(forElement){
var valueT=0,valueL=0;
var element=forElement;
do {
valueT +=element.offsetTop || 0;
valueL +=element.offsetLeft || 0;
if (element.offsetParent==document.body)
if (Element.getStyle(element,'position')=='absolute') break;} while (element=element.offsetParent);
element=forElement;
do {
if (!window.opera || element.tagName=='BODY'){
valueT -=element.scrollTop || 0;
valueL -=element.scrollLeft || 0;}} while (element=element.parentNode);
return [valueL,valueT];},
clone: function(source,target){
var options=Object.extend({
setLeft:true,
setTop:true,
setWidth:true,
setHeight:true,
offsetTop:0,
offsetLeft:0},arguments[2] || {})
source=$(source);
var p=Position.page(source);
target=$(target);
var delta=[0,0];
var parent=null;
if (Element.getStyle(target,'position')=='absolute'){
parent=Position.offsetParent(target);
delta=Position.page(parent);}
if (parent==document.body){
delta[0] -=document.body.offsetLeft;
delta[1] -=document.body.offsetTop;}
if(options.setLeft) target.style.left=(p[0] - delta[0]+options.offsetLeft)+'px';
if(options.setTop) target.style.top=(p[1] - delta[1]+options.offsetTop)+'px';
if(options.setWidth) target.style.width=source.offsetWidth+'px';
if(options.setHeight) target.style.height=source.offsetHeight+'px';},
absolutize: function(element){
element=$(element);
if (element.style.position=='absolute') return;
Position.prepare();
var offsets=Position.positionedOffset(element);
var top=offsets[1];
var left=offsets[0];
var width=element.clientWidth;
var height=element.clientHeight;
element._originalLeft=left - parseFloat(element.style.left || 0);
element._originalTop=top - parseFloat(element.style.top || 0);
element._originalWidth=element.style.width;
element._originalHeight=element.style.height;
element.style.position='absolute';
element.style.top=top+'px';
element.style.left=left+'px';
element.style.width=width+'px';
element.style.height=height+'px';},
relativize: function(element){
element=$(element);
if (element.style.position=='relative') return;
Position.prepare();
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;}}
if (Prototype.Browser.WebKit){
Position.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 [valueL,valueT];}}
Element.addMethods();