/***********************************************
* Ajax Tabs Content script- © Dynamic Drive DHTML code library (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code
***********************************************/
//Change Log:
//* Updated: July 11th, 07: Fixed bug with persistence not working. Doh.
//* Updated: July 9th, 07: Added session only persistence to tabs (set "enabletabpersistence" var below). Only .js file changed.
//* Updated Nov 8th, 06. Ability to select a tab dynamically, by calling a method (ie: via a link). Only .js file changed.
/*//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////*/

var bustcachevar=1
var loadstatustext="<p align='center' style='margin-top: 50px;'><img src='images/loading.gif' /> �ang tải dữ liệu...</p>"
var enabletabpersistence=1

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

function GetXmlHttpObject()
{
	var xmlHttp=null;
	try{
		xmlHttp=new XMLHttpRequest();
	}
	catch (e){
		try{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e){
			xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	return xmlHttp;
}
function adactiontabpage(url, containerid, targetobj, loading){
	var page_request = GetXmlHttpObject();
	if (page_request==null){
		alert ("Your browser does not support AJAX!");
		return;
	} 
	/*var ullist=targetobj.parentNode.parentNode.getElementsByTagName("li")
	for (var i=0; i<ullist.length; i++)
	ullist[i].className="tab"
	targetobj.parentNode.className="selected"
	if (url.indexOf("#default")!=-1){
		document.getElementById(containerid).innerHTML=defaultcontentarray[containerid]
		return
	}*/
	if (loading){document.getElementById(containerid).innerHTML=loadstatustext}
	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+bustcacheparameter, 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
}
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 expandtab(tabcontentid, tabnumber){
	var thetab=document.getElementById(tabcontentid).getElementsByTagName("a")[tabnumber]
	if (thetab.getAttribute("rel")){
		changebgimage('wrapper', tabnumber)
		adactiontabpage(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++){
		var ulobj=document.getElementById(arguments[i])
		var ulist=ulobj.getElementsByTagName("li")
		var persisttabindex=(enabletabpersistence==1)? parseInt(getCookie(arguments[i])) : ""
		var isvalidpersist=(persisttabindex<ulist.length)? true : false
		for (var x=0; x<ulist.length; x++){
			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)
				savedefaultcontent(ulistlink.getAttribute("rel"))
				ulistlink.onclick=function(){
					changebgimage('wrapper', this.index)
					adactiontabpage(changefsearch(this.index, false), "headadv", this, false)
					adactiontabpage(changefsearch(this.index, true), "contentright", this, false)//fsearch
					//document.getElementById("contentsup").style.display="none";
					//document.getElementById(this.getAttribute("rel")).style.display="block";
					adactiontabpage(this.getAttribute("href"), this.getAttribute("rel"), this, true)//main
					//document.getElementById("contentsup").innerHTML="";
					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")){
					changebgimage('wrapper', ulistlink.index)
					adactiontabpage(changefsearch(ulistlink.index, false), "headadv", ulistlink, false)
					adactiontabpage(changefsearch(ulistlink.index, true), "contentright", ulistlink, false)//fsearch
					adactiontabpage(ulistlink.getAttribute("href"), ulistlink.getAttribute("rel"), ulistlink, true)
					loadobjs(ulistlink.getAttribute("rev"))
				}
			}
		}
	}
}
function changebgimage(wrapper, tabnumber) {
	var wrap;
	//if (document.all){
	//	wrap=document.all.getElementById(wrapper);
	//}else{
		wrap=document.getElementById(wrapper);
	//}
	wrap.className="";
	switch(tabnumber){
		case 0:
			wrap.className="wraHotel";
			break;
		case 1:
			wrap.className="wraTour";
			break;
		case 2:
			wrap.className="wraTransport";
			break;
		case 3:
			wrap.className="wraPlaneticket";
			break;
		default:
			wrap.className="wraCulture";
			break;
	}
}
function changefsearch(tabnumber, criteria){
	var tmp;
	switch(tabnumber){
		case 0:
			tmp = (criteria)? "hotelfsearch.asp" : "hoteltitle.htm";
			break;
		case 1:
			tmp = (criteria)? "tourfsearch.asp" : "tourtitle.htm";
			break;
		case 2:
			tmp = (criteria)? "transportfsearch.asp" : "transporttitle.htm";
			break;
		case 3:
			tmp = (criteria)? "planeticketfsearch.asp" : "planetickettitle.htm";
			break;
		default:
			tmp = (criteria)? "culturefsearch.asp" : "culturetitle.htm";
			break;
	}
	return tmp;
}
function saveselectedtabindex(ulid, index){
	if (enabletabpersistence==1)
	setCookie(ulid, index)
}
function getCookie(Name){
	var re=new RegExp(Name+"=[^;]+", "i");
	if (document.cookie.match(re))
		return document.cookie.match(re)[0].split("=")[1]
	return ""
}
function setCookie(name, value){
	document.cookie = name+"="+value
}