var xmlHttp;

function upcart(prod)
{
qtyelem="qty"+prod;

qty=document.getElementById(qtyelem).value;
var url="upcart.php?sid=" + Math.random() + "&action=update_product&products_id=" + prod + "&qty=" + qty;
xmlHttp=GetXmlHttpObject(stateChangedon);
xmlHttp.open("GET", url , true);
xmlHttp.send(null);
//showmenu(str,ind);
}

function stateChangedon()
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
{ resp=xmlHttp.responseText;
  resparr=resp.split(",");
  divqty="div"+resparr[2];
  document.getElementById(divqty).innerHTML=resparr[0];
  document.getElementById("carttot").innerHTML="<font color=white><b>"+resparr[1]+"</b>";
} 
} 

function GetXmlHttpObject(handler)
{ 
var objXmlHttp=null;

if (navigator.userAgent.indexOf("Opera")>=0)
{
alert("This example doesn't work in Opera");
return 
}
if (navigator.userAgent.indexOf("MSIE")>=0)
{ 
var strName="Msxml2.XMLHTTP";
if (navigator.appVersion.indexOf("MSIE 5.5")>=0)
{
strName="Microsoft.XMLHTTP";
} 
try
{ 
objXmlHttp=new ActiveXObject(strName);
objXmlHttp.onreadystatechange=handler;
return objXmlHttp;
} 
catch(e)
{ 
alert("Error. Scripting for ActiveX might be disabled");
return 
} 
} 
if (navigator.userAgent.indexOf("Mozilla")>=0)
{
objXmlHttp=new XMLHttpRequest();
objXmlHttp.onload=handler;
objXmlHttp.onerror=handler;
return objXmlHttp;
}
}