var AJS={
getElement: function(id){
if(typeof(id)=="string")
return document.getElementById(id)
else
return id
},
getElements: function(){
var elements=new Array()
for(var i=0;i<arguments.length;i++){
var element=this.getElement(arguments[i])
elements.push(element)}
return elements
},
getQueryArgument: function(var_name){
var query=window.location.search.substring(1)
var vars=query.split("&")
for(var i=0;i<vars.length;i++){
var pair=vars[i].split("=")
if(pair[0]==var_name){
return pair[1]}}
return null
},
isIe: function(){
return(navigator.userAgent.toLowerCase().indexOf("msie")!=-1&&navigator.userAgent.toLowerCase().indexOf("opera")==-1)
},
getBody: function(){
return this.getElementsByTagAndClassName('body')[0]
},
getElementsByTagAndClassName: function(tag_name,class_name,parent){
var class_elements=new Array()
if(!this.isDefined(parent))
parent=document
if(!this.isDefined(tag_name))
tag_name='*'
var els=parent.getElementsByTagName(tag_name)
var els_len=els.length
var pattern=new RegExp("(^|\\s)"+class_name+"(\\s|$)")
for(i=0,j=0;i<els_len;i++){
if(pattern.test(els[i].className)|| class_name==null){
class_elements[j]=els[i]
j++}}
return class_elements
},
appendChildNodes: function(node){
if(arguments.length>=2){
for(var i=1;i<arguments.length;i++){
var n=arguments[i]
if(typeof(n)=="string")
n=document.createTextNode(n)
if(this.isDefined(n))
node.appendChild(n)}}
return node
},
replaceChildNodes: function(node){
var child
while((child=node.firstChild)){
node.removeChild(child)}
if(arguments.length<2){
return node
}else{
return this.appendChildNodes.apply(this,arguments)}
},
insertAfter: function(node,referenceNode){
referenceNode.parentNode.insertBefore(node,referenceNode.nextSibling)
},
insertBefore: function(node,referenceNode){
referenceNode.parentNode.insertBefore(node,referenceNode)
},
showElement: function(elm){
elm.style.display=''
},
hideElement: function(elm){
elm.style.display='none'
},
isElementHidden: function(elm){
return elm.style.visibility=="hidden"
},
swapDOM: function(dest,src){
dest=this.getElement(dest)
var parent=dest.parentNode
if(src){
src=this.getElement(src)
parent.replaceChild(src,dest)
}else{
parent.removeChild(dest)}
return src
},
removeElement: function(elm){
this.swapDOM(elm,null)
},
isDict: function(o){
var str_repr=String(o)
return str_repr.indexOf(" Object")!=-1
},
createDOM: function(name,attrs){
var i=0
elm=document.createElement(name)
if(this.isDict(attrs[i])){
for(k in attrs[0]){
if(k=="style")
elm.style.cssText=attrs[0][k]
else if(k=="class")
elm.className=attrs[0][k]
else
elm.setAttribute(k,attrs[0][k])}
i++}
if(attrs[0]==null)
i=1
for(i;i<attrs.length;i++){
var n=attrs[i]
if(this.isDefined(n)){
if(typeof(n)=="string")
n=document.createTextNode(n)
elm.appendChild(n)}}
return elm
},
UL: function(){return this.createDOM.apply(this,["ul",arguments]);},
LI: function(){return this.createDOM.apply(this,["li",arguments]);},
TD: function(){return this.createDOM.apply(this,["td",arguments]);},
TR: function(){return this.createDOM.apply(this,["tr",arguments]);},
TH: function(){return this.createDOM.apply(this,["th",arguments]);},
TBODY: function(){return this.createDOM.apply(this,["tbody",arguments]);},
TABLE: function(){return this.createDOM.apply(this,["table",arguments]);},
INPUT: function(){return this.createDOM.apply(this,["input",arguments]);},
SPAN: function(){return this.createDOM.apply(this,["span",arguments]);},
B: function(){return this.createDOM.apply(this,["b",arguments]);},
A: function(){return this.createDOM.apply(this,["a",arguments]);},
DIV: function(){return this.createDOM.apply(this,["div",arguments]);},
IMG: function(){return this.createDOM.apply(this,["img",arguments]);},
BUTTON: function(){return this.createDOM.apply(this,["button",arguments]);},
H1: function(){return this.createDOM.apply(this,["h1",arguments]);},
H2: function(){return this.createDOM.apply(this,["h2",arguments]);},
H3: function(){return this.createDOM.apply(this,["h3",arguments]);},
BR: function(){return this.createDOM.apply(this,["br",arguments]);},
TEXTAREA: function(){return this.createDOM.apply(this,["textarea",arguments]);},
FORM: function(){return this.createDOM.apply(this,["form",arguments]);},
P: function(){return this.createDOM.apply(this,["p",arguments]);},
SELECT: function(){return this.createDOM.apply(this,["select",arguments]);},
OPTION: function(){return this.createDOM.apply(this,["option",arguments]);},
TN: function(text){return document.createTextNode(text);},
IFRAME: function(){return this.createDOM.apply(this,["iframe",arguments]);},
SCRIPT: function(){return this.createDOM.apply(this,["script",arguments]);},
getXMLHttpRequest: function(){
var try_these=[
function(){return new XMLHttpRequest();},
function(){return new ActiveXObject('Msxml2.XMLHTTP');},
function(){return new ActiveXObject('Microsoft.XMLHTTP');},
function(){return new ActiveXObject('Msxml2.XMLHTTP.4.0');},
function(){throw "Browser does not support XMLHttpRequest";}
]
for(var i=0;i<try_these.length;i++){
var func=try_these[i]
try{
return func()
}catch(e){}}
},
doSimpleXMLHttpRequest: function(url){
var req=this.getXMLHttpRequest()
req.open("GET",url,true)
return this.sendXMLHttpRequest(req)
},
getRequest: function(url,data){
var req=this.getXMLHttpRequest()
req.open("POST",url,true)
req.setRequestHeader("Content-type","application/x-www-form-urlencoded")
return this.sendXMLHttpRequest(req)
},
sendXMLHttpRequest: function(req,data){
var d=new AJSDeferred(req)
var onreadystatechange=function(){
if(req.readyState==4){
try{
status=req.status}
catch(e){}
if(status==200 || status==304 || req.responseText==null){
d.callback(req,data)}
else{
d.errback()}}}
req.onreadystatechange=onreadystatechange
return d
},
reprString: function(o){
return('"'+o.replace(/(["\\])/g, '\\$1') + '"'
).replace(/[\f]/g,"\\f"
).replace(/[\b]/g,"\\b"
).replace(/[\n]/g,"\\n"
).replace(/[\t]/g,"\\t"
).replace(/[\r]/g,"\\r")
},
serializeJSON: function(o){
var objtype=typeof(o)
if(objtype=="undefined"){
return "undefined"
}else if(objtype=="number" || objtype=="boolean"){
return o+""
}else if(o===null){
return "null"}
if(objtype=="string"){
return this.reprString(o)}
var me=arguments.callee
var newObj
if(typeof(o.__json__)=="function"){
newObj=o.__json__()
if(o !==newObj){
return me(newObj)}}
if(typeof(o.json)=="function"){
newObj=o.json()
if(o !==newObj){
return me(newObj)}}
if(objtype !="function"&&typeof(o.length)=="number"){
var res=[]
for(var i=0;i<o.length;i++){
var val=me(o[i])
if(typeof(val)!="string"){
val="undefined"}
res.push(val)}
return "["+res.join(",")+"]"}
res=[]
for(var k in o){
var useKey
if(typeof(k)=="number"){
useKey='"'+k+'"'
}else if(typeof(k)=="string"){
useKey=this.reprString(k)
}else{
continue}
val=me(o[k])
if(typeof(val)!="string"){
continue}
res.push(useKey+":"+val)}
return "{"+res.join(",")+"}"
},
loadJSONDoc: function(url){
var d=this.getRequest(url)
var eval_req=function(req){
var text=req.responseText
return eval('('+text+')')}
d.addCallback(eval_req)
return d
},
keys: function(obj){
var rval=[]
for(var prop in obj){
rval.push(prop)}
return rval
},
urlencode: function(str){
return encodeURIComponent(str.toString())
},
isDefined: function(o){
return(o !="undefined"&&o !=null)
},
isArray: function(obj){
try{return(typeof(obj.length)=="undefined")? false : true;}
catch(e)
{return false;}
},
isObject: function(obj){
return(obj&&typeof obj=='object')
},
exportDOMElements: function(){
UL=this.UL
LI=this.LI
TD=this.TD
TR=this.TR
TH=this.TH
TBODY=this.TBODY
TABLE=this.TABLE
INPUT=this.INPUT
SPAN=this.SPAN
B=this.B
A=this.A
DIV=this.DIV
IMG=this.IMG
BUTTON=this.BUTTON
H1=this.H1
H2=this.H2
H3=this.H3
BR=this.BR
TEXTAREA=this.TEXTAREA
FORM=this.FORM
P=this.P
SELECT=this.SELECT
OPTION=this.OPTION
TN=this.TN
IFRAME=this.IFRAME
SCRIPT=this.SCRIPT
},
exportToGlobalScope: function(){
getElement=this.getElement
getQueryArgument=this.getQueryArgument
isIe=this.isIe
$=this.getElement
getElements=this.getElements
getBody=this.getBody
getElementsByTagAndClassName=this.getElementsByTagAndClassName
appendChildNodes=this.appendChildNodes
ACN=appendChildNodes
replaceChildNodes=this.replaceChildNodes
RCN=replaceChildNodes
insertAfter=this.insertAfter
insertBefore=this.insertBefore
showElement=this.showElement
hideElement=this.hideElement
isElementHidden=this.isElementHidden
swapDOM=this.swapDOM
removeElement=this.removeElement
isDict=this.isDict
createDOM=this.createDOM
this.exportDOMElements()
getXMLHttpRequest=this.getXMLHttpRequest
doSimpleXMLHttpRequest=this.doSimpleXMLHttpRequest
getRequest=this.getRequest
sendXMLHttpRequest=this.sendXMLHttpRequest
reprString=this.reprString
serializeJSON=this.serializeJSON
loadJSONDoc=this.loadJSONDoc
keys=this.keys
isDefined=this.isDefined
isArray=this.isArray}}
AJSDeferred=function(req){
this.callbacks=[]
this.req=req
this.callback=function(res){
while(this.callbacks.length>0){
var fn=this.callbacks.pop()
res=fn(res)}}
this.errback=function(e){
alert("Error encountered:\n"+e)}
this.addErrback=function(fn){
this.errback=fn}
this.addCallback=function(fn){
this.callbacks.unshift(fn)}
this.addCallbacks=function(fn1,fn2){
this.addCallback(fn1)
this.addErrback(fn2)}
this.sendReq=function(data){
if(AJS.isObject(data)){
var post_data=[]
for(k in data){
post_data.push(k+"="+AJS.urlencode(data[k]))}
post_data=post_data.join("&")
this.req.send(post_data)}
else if(AJS.isDefined(data))
this.req.send(data)
else{
this.req.send("")}}}
AJSDeferred.prototype=new AJSDeferred()