var xmlHttp

function showProducts(str,pg)
{ 
var url="dispproduct.php?sid=" + Math.random() + "&subcat=" + str + "&page=" + pg ;
xmlHttp=GetXmlHttpObject(stateChanged)
xmlHttp.open("GET", url , true)
xmlHttp.send(null)
} 


function showSubCat(str)
{ 
var url="dispsubcat.php?sid=" + Math.random() + "&subcat=" + str 
xmlHttp=GetXmlHttpObject(stateChanged)
xmlHttp.open("GET", url , true)
xmlHttp.send(null)
} 

function showProductDetails(product,cat)
{ 
var url="productdetails.php?sid=" + Math.random() + "&product=" + product + "&cat=" + cat
xmlHttp=GetXmlHttpObject(stateChanged)
xmlHttp.open("GET", url , true)
xmlHttp.send(null)
}
/*
function AddCart()
{ 
var product_id = document.getElementById("productid").value
var quantity = document.getElementById("quantity").value
var str= "productid=" + product_id + "&quantity=" +quantity
var url="displaycart.php?sid=" + Math.random() + "&action=add" ;
xmlHttp=GetXmlHttpObject(stateChanged)
xmlHttp.open("POST", url , true)
xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=UTF-8");
xmlHttp.send(str);
return false;
}

function UpdateCart()
{ 
var product_id = document.getElementById("productid").value
var quantity = document.getElementById("quantity").value
var str= "productid=" + product_id + "&quantity=" +quantity
var url="displaycart.php?sid=" + Math.random() + "&action=add" ;
xmlHttp=GetXmlHttpObject(stateChanged)
xmlHttp.open("POST", url , true)
xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=UTF-8");
xmlHttp.send(str);
return false;
}
*/
function stateChanged() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
{ 
document.getElementById("cont").innerHTML=xmlHttp.responseText 
} 
} 

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
}
}