var receiveReq = searchAjax();

var bustcachevar=1 //bust potential caching of external pages after initial request? (1=yes, 0=no)
var loadstatustext="<img src='"+JURL+"/www/searchtabs/loading.gif' /> Searching..."
var enabletabpersistence=0 //enable tab persistence via session only cookies, so selected tab is remembered (1=yes, 0=no)?

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

function ajaxpage(url, containerid, targetobj)
{
	var page_request = false
	if (window.XMLHttpRequest) // if Mozilla, IE7, Safari etc
		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=""  //deselect all tabs
targetobj.parentNode.className="selected"  //highlight currently clicked on tab
if (url.indexOf("#default")!=-1)
{ //if simply show default content within container (verus fetch it via ajax)
	document.getElementById(containerid).innerHTML=defaultcontentarray[containerid]
	return
}
document.getElementById(containerid).innerHTML=loadstatustext
page_request.onreadystatechange=function(){
loadpage(page_request, containerid)
}
if (bustcachevar) //if bust caching of external page
	bustcacheparameter=(url.indexOf("?")!=-1)? "&"+new Date().getTime() : "?"+new Date().getTime()
	page_request.open('GET', url+bustcacheparameter, true)
	page_request.send(null)
}

function loadpage(page_request, containerid){
if (((page_request.readyState == 4 ) || (page_request.readyState == 0))&& (page_request.status==200 || window.location.href.indexOf("http")==-1))
	document.getElementById(containerid).innerHTML=page_request.responseText
}

function loadobjs(revattribute)
{
	if (revattribute!=null && revattribute!=""){ //if "rev" attribute is defined (load external .js or .css files)
	var objectlist=revattribute.split(/\s*,\s*/) //split the files and store as array
		for (var i=0; i<objectlist.length; i++){
		var file=objectlist[i]
		var fileref=""
		if (loadedobjects.indexOf(file)==-1){ //Check to see if this object has not already been added to page before proceeding
			if (file.indexOf(".js")!=-1){ //If object is a js file
				fileref=document.createElement('script')
		fileref.setAttribute("type","text/javascript");
		fileref.setAttribute("src", file);
	}
else if (file.indexOf(".css")!=-1){ //If object is a css file
	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+" " //Remember this object as being already added to page
}
}
}
}



function savedefaultcontent(contentid){// save default ajax tab content
if (typeof defaultcontentarray[contentid]=="undefined") //if default content hasn't already been saved
	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=/)
}

///////////////////////////////////////////////////////////////
function searchAjax() 
{ 
	var xmlhttp=false; 
	try 
	{ 
		//AJAX object for new versions of IE
		xmlhttp=new ActiveXObject("Msxml2.XMLHTTP"); 
	} 
	catch(e) 
		{ 
			try 
			{ 
				// AJAX object for old versions of IE 
				xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); 
			} 
			catch(E) { xmlhttp=false; } 
		} 
	if (!xmlhttp && window.XMLHttpRequest) 
	{ 
		// AJAX object for non IE browsers
		xmlhttp=new XMLHttpRequest(); 
	} 
	return xmlhttp; 
}

function searchProducts(searchString,page,showProd,sortby) {
	//If the XmlHttpRequest object is not in the middle of a request, star a new asynchronous call.
	if (receiveReq.readyState == 4 || receiveReq.readyState == 0) {
	//Set the connection as a GET to CargarEstructura.html.
	receiveReq.open("GET", JURL+'/searchSiteProducts/'+searchString+'/'+page+'/'+showProd+'/'+sortby+'/', true);
	//Set the function that will be called each time the object changes its state.
	receiveReq.onreadystatechange = handleSearchProducts; 
	//Make the actual request.
	receiveReq.send(null);	}	
	
}
			
function handleSearchProducts() {
//Check if the state of XmlHttpRequests is finished.
if (receiveReq.readyState == 4) {
	//Set the content of the tag where results will be shown.
	document.getElementById('ajaxcontentarea').innerHTML = receiveReq.responseText;
	}
}
/////////////////////////////////////////////////////////////////////////////////////////////

function searchArticles(searchString,page,showArt) {
	//If the XmlHttpRequest object is not in the middle of a request, star a new asynchronous call.
	if (receiveReq.readyState == 4 || receiveReq.readyState == 0) {
	//Set the connection as a GET to CargarEstructura.html.
	receiveReq.open("GET", JURL+'/searchSiteArticles/'+searchString+'/'+page+'/'+showArt+'/', true);
	//Set the function that will be called each time the object changes its state.
	receiveReq.onreadystatechange = handleSearchArticles; 
	//Make the actual request.
	receiveReq.send(null);	}	
	
}
			
function handleSearchArticles() {
//Check if the state of XmlHttpRequests is finished.
if (receiveReq.readyState == 4) {
	//Set the content of the tag where results will be shown.
	document.getElementById('ajaxcontentarea').innerHTML = receiveReq.responseText;
	}
}

///////////////////////////////////////////////////////

function searchMisc(searchString,page,showMisc) {
	//If the XmlHttpRequest object is not in the middle of a request, star a new asynchronous call.
	if (receiveReq.readyState == 4 || receiveReq.readyState == 0) {
	//Set the connection as a GET to CargarEstructura.html.
	receiveReq.open("GET", JURL+'/searchSiteMiscellaneous/'+searchString+'/'+page+'/'+showMisc+'/', true);
	//Set the function that will be called each time the object changes its state.
	receiveReq.onreadystatechange = handleSearchMisc; 
	//Make the actual request.
	receiveReq.send(null);	}	
	
}
			
function handleSearchMisc() {
//Check if the state of XmlHttpRequests is finished.
if (receiveReq.readyState == 4) {
	//Set the content of the tag where results will be shown.
	document.getElementById('ajaxcontentarea').innerHTML = receiveReq.responseText;
	}
}