/*  Prototype JavaScript framework, version 1.5.0_rc1
 *  (c) 2005 Sam Stephenson <sam@conio.net>
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site: http://prototype.conio.net/
 *
/*--------------------------------------------------------------------------*/

var Prototype={
Version: '1.5.0_rc1',
BrowserFeatures:{
XPath: !!document.evaluate
},
ScriptFragment: '(?:<script.*?>)((\n|\r|.)*?)(?:<\/script>)',
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}
},
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=$A(arguments),object=args.shift()
return function(event){
return __method.apply(object,[(event || window.event)].concat(args).concat($A(arguments)))}}
Object.extend(Number.prototype,{
toColorPart: function(){
var digits=this.toString(16)
if(this<16)return '0'+digits
return digits
},
succ: function(){
return this+1
},
times: function(iterator){
$R(0,this,true).each(iterator)
return this}
})
var Try={
these: function(){
var returnValue
for(var i=0;i<arguments.length;i++){
var lambda=arguments[i]
try{
returnValue=lambda()
break
}catch(e){}}
return returnValue}}
var PeriodicalExecuter=Class.create()
PeriodicalExecuter.prototype={
initialize: function(callback,frequency){
this.callback=callback
this.frequency=frequency
this.currentlyExecuting=false
this.registerCallback()
},
registerCallback: function(){
this.timer=setInterval(this.onTimerEvent.bind(this),this.frequency*1000)
},
stop: function(){
if(!this.timer)return
clearInterval(this.timer)
this.timer=null
},
onTimerEvent: function(){
if(!this.currentlyExecuting){
try{
this.currentlyExecuting=true
this.callback(this)
}finally{
this.currentlyExecuting=false}}}}
Object.extend(String.prototype,{
gsub: function(pattern,replacement){
var result='',source=this,match
replacement=arguments.callee.prepareReplacement(replacement)
while(source.length>0){
if(match=source.match(pattern)){
result+=source.slice(0,match.index)
result+=(replacement(match)|| '').toString()
source=source.slice(match.index+match[0].length)
}else{
result+=source,source=''}}
return result
},
sub: function(pattern,replacement,count){
replacement=this.gsub.prepareReplacement(replacement)
count=count===undefined ? 1 : count
return this.gsub(pattern,function(match){
if(--count<0)return match[0]
return replacement(match)
})
},
scan: function(pattern,iterator){
this.gsub(pattern,iterator)
return this
},
truncate: function(length,truncation){
length=length || 30
truncation=truncation===undefined ? '...' : truncation
return this.length>length ?
this.slice(0,length-truncation.length)+truncation : this
},
strip: function(){
return this.replace(/^\s+/,'').replace(/\s+$/,'')
},
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)})
},
toArray: function(){
return this.split('')
},
camelize: function(){
var oStringList=this.split('-')
if(oStringList.length==1)return oStringList[0]
var camelizedString=this.indexOf('-')==0
? oStringList[0].charAt(0).toUpperCase()+oStringList[0].substring(1)
: oStringList[0]
for(var i=1,len=oStringList.length;i<len;i++){
var s=oStringList[i]
camelizedString+=s.charAt(0).toUpperCase()+s.substring(1)}
return camelizedString
},
inspect: function(useDoubleQuotes){
var escapedString=this.replace(/\\/g,'\\\\')
if(useDoubleQuotes)
return '"'+escapedString.replace(/"/g, '\\"') + '"'
else
return "'"+escapedString.replace(/'/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
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+(object[match[3]] || '').toString()
})}}
var $break=new Object()
var $continue=new Object()
var Enumerable={
each: function(iterator){
var index=0
try{
this._each(function(value){
try{
iterator(value,index++)
}catch(e){
if(e !=$continue)throw e}
})
}catch(e){
if(e !=$break)throw e}
},
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(value,index))
})
return results
},
detect: function(iterator){
var result
this.each(function(value,index){
if(iterator(value,index)){
result=value
throw $break}
})
return result
},
findAll: function(iterator){
var results=[]
this.each(function(value,index){
if(iterator(value,index))
results.push(value)
})
return results
},
invoke: function(method){
var args=$A(arguments).slice(1)
return this.collect(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.collect(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.collect(Prototype.K)
},
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))
})
},
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 $A=Array.from=function(iterable){
if(!iterable)return []
if(iterable.toArray){
return iterable.toArray()
}else{
var results=[]
for(var i=0;i<iterable.length;i++)
results.push(iterable[i])
return results}}
Object.extend(Array.prototype,Enumerable)
if(!Array.prototype._reverse)
Array.prototype._reverse=Array.prototype.reverse
Object.extend(Array.prototype,{
_each: function(iterator){
for(var i=0;i<this.length;i++)
iterator(this[i])
},
clear: function(){
this.length=0
return this
},
first: function(){
return this[0]
},
last: function(){
return this[this.length-1]
},
compact: function(){
return this.select(function(value){
return value !=undefined || value !=null
})
},
without: function(){
var values=$A(arguments)
return this.select(function(value){
return !values.include(value)
})
},
indexOf: function(object){
for(var i=0;i<this.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]
},
inspect: function(){
return '['+this.map(Object.inspect).join(', ')+']'}
})
var Hash={
_each: function(iterator){
for(var key in this){
var value=this[key]
if(typeof value=='function')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')
},
toQueryString: function(){
return this.map(function(pair){
return pair.map(encodeURIComponent).join('=')
}).join('&')
},
inspect: function(){
return '#<Hash:{'+this.map(function(pair){
return pair.map(Object.inspect).join(': ')
}).join(', ')+'}>'}}
function $H(object){
var hash=Object.extend({},object ||{})
Object.extend(hash,Enumerable)
Object.extend(hash,Hash)
return hash}
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)}
function $(){
var results=[],element
for(var i=0;i<arguments.length;i++){
element=arguments[i]
if(typeof element=='string')
element=document.getElementById(element)
results.push(Element.extend(element))}
return results.reduce()}
if(Prototype.BrowserFeatures.XPath){
document._getElementsByXPath=function(expression,parentElement){
var results=[]
var query=document.evaluate(expression,$(parentElement)|| document,
null,XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,null)
for(var i=0,len=query.snapshotLength;i<len;i++)
results.push(query.snapshotItem(i))
return results}}
document.getElementsByClassName=function(className,parentElement){
if(Prototype.BrowserFeatures.XPath){
var q=".//*[contains(concat(' ', @class, ' '), ' "+className+" ')]"
return document._getElementsByXPath(q,parentElement)
}else{
var children=($(parentElement)|| document.body).getElementsByTagName('*')
var elements=[],child
for(var i=0,len=children.length;i<len;i++){
child=children[i]
if(child.className.length==0)continue
if(child.className==className ||
child.className.match(new RegExp("(^|\\s)"+className+"(\\s|$)")))
elements.push(Element.extend(child))}
return elements}}
if(!window.Element)
var Element=new Object()
Element.extend=function(element){
if(!element)return
if(_nativeExtensions || element.nodeType==3)return element
if(!element._extended&&element.tagName&&element !=window){
var methods=Object.clone(Element.Methods),cache=Element.extend.cache
for(var property in methods){
var value=methods[property]
if(typeof value=='function')
element[property]=cache.findOrStore(value)}}
element._extended=true
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){
$(element).innerHTML=html.stripScripts()
setTimeout(function(){html.evalScripts()},10)
return element
},
replace: function(element,html){
element=$(element)
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 $(element).recursivelyCollect('parentNode')
},
descendants: function(element){
element=$(element)
return $A(element.getElementsByTagName('*'))
},
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){
element=$(element)
if(typeof selector=='string')
selector=new Selector(selector)
return selector.match(element)
},
up: function(element,expression,index){
return Selector.findElement($(element).ancestors(),expression,index)
},
down: function(element,expression,index){
return Selector.findElement($(element).descendants(),expression,index)
},
previous: function(element,expression,index){
return Selector.findElement($(element).previousSiblings(),expression,index)
},
next: function(element,expression,index){
return Selector.findElement($(element).nextSiblings(),expression,index)
},
getElementsBySelector: function(){
var args=$A(arguments),element=$(args.shift())
return Selector.findChildElements(element,args)
},
getElementsByClassName: function(element,className){
element=$(element)
return document.getElementsByClassName(className,element)
},
getHeight: function(element){
element=$(element)
return element.offsetHeight
},
classNames: function(element){
return new Element.ClassNames(element)
},
hasClassName: function(element,className){
if(!(element=$(element)))return
return Element.classNames(element).include(className)
},
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
},
observe: function(){
Event.observe.apply(Event,arguments)
return $A(arguments).first()
},
stopObserving: function(){
Event.stopObserving.apply(Event,arguments)
return $A(arguments).first()
},
childOf: function(element,ancestor){
element=$(element),ancestor=$(ancestor)
while(element=element.parentNode)
if(element==ancestor)return true
return false
},
getStyle: function(element,style){
element=$(element)
var value=element.style[style.camelize()]
if(!value){
if(document.defaultView&&document.defaultView.getComputedStyle){
var css=document.defaultView.getComputedStyle(element,null)
value=css ? css.getPropertyValue(style): null
}else if(element.currentStyle){
value=element.currentStyle[style.camelize()]}}
if(window.opera&&['left','top','right','bottom'].include(style))
if(Element.getStyle(element,'position')=='static')value='auto'
return value=='auto' ? null : value
},
setStyle: function(element,style){
element=$(element)
for(var name in style)
element.style[name.camelize()]=style[name]
return element}}
var _nativeExtensions=false
if(!window.HTMLElement&&/Konqueror|Safari|KHTML/.test(navigator.userAgent)){
['','Form','Input','TextArea','Select'].each(function(tag){
var klass=window['HTML'+tag+'Element']={}
klass.prototype=document.createElement(tag ? tag.toLowerCase(): 'div').__proto__
})}
Element.addMethods=function(methods){
Object.extend(Element.Methods,methods ||{})
function copy(methods,destination){
var cache=Element.extend.cache
for(var property in methods){
var value=methods[property]
destination[property]=cache.findOrStore(value)}}}
var Toggle=new Object()
Toggle.display=Element.toggle
Element.ClassNames=Class.create()
Element.ClassNames.prototype={
initialize: function(element){
this.element=$(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(this.toArray().concat(classNameToAdd).join(' '))
},
remove: function(classNameToRemove){
if(!this.include(classNameToRemove))return
this.set(this.select(function(className){
return className !=classNameToRemove
}).join(' '))
},
toString: function(){
return this.toArray().join(' ')}}
function $$(){
return Selector.findChildElements(document,$A(arguments))}
Abstract.TimedObserver=function(){}
Abstract.TimedObserver.prototype={
initialize: function(element,frequency,callback){
this.frequency=frequency
this.element=$(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()
if(this.lastValue !=value){
this.callback(this.element,value)
this.lastValue=value}}}
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(){
var elements=Form.getElements(this.element)
for(var i=0;i<elements.length;i++)
this.registerCallback(elements[i])
},
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}}}}
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;i<Event.observers.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'&&
(navigator.appVersion.match(/Konqueror|Safari|KHTML/)
|| element.attachEvent))
name='keydown'
Event._observeAndCache(element,name,observer,useCapture)
},
stopObserving: function(element,name,observer,useCapture){
element=$(element)
useCapture=useCapture || false
if(name=='keypress'&&
(navigator.appVersion.match(/Konqueror|Safari|KHTML/)
|| element.detachEvent))
name='keydown'
if(element.removeEventListener){
element.removeEventListener(name,observer,useCapture)
}else if(element.detachEvent){
try{
element.detachEvent('on'+name,observer)
}catch(e){}}}
})
if(navigator.appVersion.match(/\bMSIE\b/))
Event.observe(window,'unload',Event.unloadCache,false)
if(/Konqueror|Safari|KHTML/.test(navigator.userAgent)){
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()