var xmlHttp
var page
var setvoucher

function updatePdt(type,pdtID,qty,shoeCat)
{ 
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }

if (qty == "") {
	qty = document.getElementById("selQty").value;	
}

var url="cart-update.php"
url=url+"?pdtID="+pdtID
url=url+"&qty="+qty
url=url+"&action="+type

var totalQty = parseInt(document.getElementById("totalQty").value);
var size = parseInt(0);
//var totalQty = 0;
if (shoeCat == "y") {
	sizeQty = document.getElementById("selShoe").value;
	var itm = sizeQty.split("*")
	size = parseInt(itm[0]);
	totalQty = parseInt(itm[1]);
	
	
	var orderStr = document.getElementById("orderStr").value;
	var itm2 = orderStr.split(",")
	for (var i=0; i<itm2.length; i++) 
	{
		var itmSplit = itm2[i].split("*")
		itmSize = parseInt(itmSplit[0]);
		itmQty = parseInt(itmSplit[1]);
		if (itmSize==size) {
			totalQty = totalQty - itmQty;
		}
	}
	
}

url=url+"&shoeSize="+size
url=url+"&totalQty="+totalQty
xmlHttp.onreadystatechange=stateChanged 
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}

/*
function logout()
{
	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null)
	 {
	 alert ("Browser does not support HTTP Request")
	 return
	 }
	var url="login-validate.php"
	url=url+"?action=logout"
	xmlHttp.onreadystatechange=stateChanged 
	xmlHttp.open("GET",url,true)
	xmlHttp.send(null)		
}

function validateLogin(currentPage,setVoucher)
{ 
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }
var email = document.getElementById("loginEmail").value;
var pwd = document.getElementById("loginPwd").value;
setvoucher = setVoucher;
page = currentPage;
var url="login-validate.php"
url=url+"?email="+email
url=url+"&pwd="+pwd
url=url+"&action=login"
xmlHttp.onreadystatechange=stateChanged 
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}
*/
function stateChanged() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 { 
	 var res = xmlHttp.responseText
/*
	 if (res == "Invalid email/password") {
		 document.getElementById("loginError").innerHTML= res
	 }
	 else if(res == "login") {
		 if (page=="/signup.php") {
			 var dest = "http://www.hengs-empire.com/checkout.php?voucher="+setvoucher;
			 window.location=dest;
		 }
		 else {
			 window.location="http://www.hengs-empire.com/member-welcome.php";
		 }
	 }
	 else if(res == "logout") {
		 window.location="http://www.hengs-empire.com";
	 }
	 else {
*/
		var flag = res.substring(0,1)
		res = res.substring(1)
		document.getElementById("cart-overview").innerHTML=res
		
		if (flag=="y") {
			alert("Your item has been added successfully!", 3);
		}
		else if (flag=="n") {
			alert("You have reached the maximum order quantity for this item.", 3);
		}
		//if (flag=="y") {
			//jAlert('success', 'Your item has been added successfully!', 'Successful');
		//}
		//else {
			//jAlert('error', 'Maximum order quantity per item is 10.', 'Unsuccessful');
		//}
	 //}
 } 
}

function GetXmlHttpObject()
{
var xmlHttp=null;
try
 {
 // Firefox, Opera 8.0+, Safari
 xmlHttp=new XMLHttpRequest();
 }
catch (e)
 {
 //Internet Explorer
 try
  {
  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
  }
 catch (e)
  {
  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
 }
return xmlHttp;
}