var bustcachevar=1 
var loadstatustext=""
var loadstatustext2=""
var enabletabpersistence=1 

var loadedobjects=""
var defaultcontentarray=new Object()
var bustcacheparameter=""

function ajaxpage(url, containerid, targetobj){
var page_request = false
if (window.XMLHttpRequest) 
page_request = new XMLHttpRequest()
else if (window.ActiveXObject){ // if IE
try {
page_request = new ActiveXObject("Msxml2.XMLHTTP")
} 
catch (e){
try{
page_request = new ActiveXObject("Microsoft.XMLHTTP")
}
catch (e){}
}
}
else
return false
var ullist=targetobj.parentNode.parentNode.getElementsByTagName("li")
for (var i=0; i<ullist.length; i++)
ullist[i].className=""  
targetobj.parentNode.className="selected" 
if (url.indexOf("#default")!=-1){ 
document.getElementById(containerid).innerHTML=defaultcontentarray[containerid]
return
}
//document.getElementById(containerid).innerHTML=loadstatustext2
page_request.onreadystatechange=function(){
loadpage(page_request, containerid)
}
if (bustcachevar) 
bustcacheparameter=(url.indexOf("?")!=-1)? "&"+new Date().getTime() : "?"+new Date().getTime()
page_request.open('GET', url, true)
page_request.send(null)
}

function loadpage(page_request, containerid){
    if (page_request.readyState == 4 && (page_request.status == 200 || window.location.href.indexOf("http") == -1)) {
        document.getElementById(containerid).innerHTML = page_request.responseText
    } else {
        
    }
}


function loadobjs(revattribute){
if (revattribute!=null && revattribute!=""){ 
var objectlist=revattribute.split(/\s*,\s*/)
for (var i=0; i<objectlist.length; i++){
var file=objectlist[i]
var fileref=""
if (loadedobjects.indexOf(file)==-1){ 
if (file.indexOf(".js")!=-1){ 
fileref=document.createElement('script')
fileref.setAttribute("type","text/javascript");
fileref.setAttribute("src", file);
}
else if (file.indexOf(".css")!=-1){ 
fileref=document.createElement("link")
fileref.setAttribute("rel", "stylesheet");
fileref.setAttribute("type", "text/css");
fileref.setAttribute("href", file);
}
}
if (fileref!=""){
document.getElementsByTagName("head").item(0).appendChild(fileref)
loadedobjects+=file+" " 
}
}
}
}

function expandtab(tabcontentid, tabnumber){ 
var thetab=document.getElementById(tabcontentid).getElementsByTagName("a")[tabnumber]
if (thetab.getAttribute("rel")){
ajaxpage(thetab.getAttribute("href"), thetab.getAttribute("rel"), thetab)
loadobjs(thetab.getAttribute("rev"))
}
}

function savedefaultcontent(contentid){
if (typeof defaultcontentarray[contentid]=="undefined") 
defaultcontentarray[contentid]=document.getElementById(contentid).innerHTML
}

function startajaxtabs(){
for (var i=0; i<arguments.length; i++){ //loop through passed UL ids
var ulobj=document.getElementById(arguments[i])
var ulist=ulobj.getElementsByTagName("li") //array containing the LI elements within UL
var persisttabindex=(enabletabpersistence==1)? parseInt(getCookie(arguments[i])) : "" //get index of persisted tab (if applicable)
var isvalidpersist=(persisttabindex<ulist.length)? true : false //check if persisted tab index falls within range of defined tabs
for (var x=0; x<ulist.length; x++){ //loop through each LI element
var ulistlink=ulist[x].getElementsByTagName("a")[0]
ulistlink.index=x
if (ulistlink.getAttribute("rel")){
var modifiedurl=ulistlink.getAttribute("href").replace(/^http:\/\/[^\/]+\//i, "http://"+window.location.hostname+"/")
ulistlink.setAttribute("href", modifiedurl) //replace URL's root domain with dynamic root domain, for ajax security sake
savedefaultcontent(ulistlink.getAttribute("rel")) //save default ajax tab content
ulistlink.onclick=function(){
ajaxpage(this.getAttribute("href"), this.getAttribute("rel"), this)
loadobjs(this.getAttribute("rev"))
saveselectedtabindex(this.parentNode.parentNode.id, this.index)
return false
}
if ((enabletabpersistence==1 && persisttabindex<ulist.length && x==persisttabindex) || (enabletabpersistence==0 && ulist[x].className=="selected")){
ajaxpage(ulistlink.getAttribute("href"), ulistlink.getAttribute("rel"), ulistlink) //auto load currenly selected tab content
loadobjs(ulistlink.getAttribute("rev")) //auto load any accompanying .js and .css files
}
}
}
}
}

////////////Persistence related functions//////////////////////////

function saveselectedtabindex(ulid, index){ //remember currently selected tab (based on order relative to other tabs)
if (enabletabpersistence==1) //if persistence feature turned on
setCookie(ulid, index)
}

function getCookie(Name){ 
var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair
if (document.cookie.match(re)) //if cookie found
return document.cookie.match(re)[0].split("=")[1] //return its value
return ""
}

function setCookie(name, value){
document.cookie = name+"="+value //cookie value is domain wide (path=/)
}