// JavaScript Document
var xmlHttp 
function addto_cart(displayitem) 
{	
	url = "add_to_cart.php";
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null) {	
		alert ("Your browser does not support AJAX!");
		return;
	} 
	url =url+"&sid="+Math.random();		
	xmlHttp.onreadystatechange=function stateChanged() {
		if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") {			
			if(xmlHttp.responseText.length>0) {			
				document.getElementById(displayitem).innerHTML=xmlHttp.responseText;							
				if (xmlHttp.responseText=="<font color=red>Sub-categories Not Available.</font>") {			
					document.frmreg.user_name.focus();
					document.getElementById(displayitem).style.display = 'block'; 
					return false;
				}
			}
			else {
				document.getElementById(displayitem).innerHTML="asas";
				document.getElementById(displayitem).style.display = 'none'; 
			}
		}
		else
		{
		 document.getElementById(displayitem).innerHTML="Retrieving Sub-Categories..."; 
		}
	};
	
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

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;
}