var offset = 0;

function getHTTPObject()
{
	var xmlhttp;
	/*@cc_on
	@if(@_jscript_version >=5)
	try
	{
		xmlhttp=new ActiveXObject("Msxml2.XMLHTTP");
	}
	catch(e)
	{
		try
		{
			xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
		catch(E)
		{
			xmlhttp=false;
		}
	}
	@else
		xmlhttp=false;
	@end @*/
	if(!xmlhttp && typeof XMLHttpRequest != 'undefined')
	{
		try
		{
			xmlhttp=new XMLHttpRequest();
		}
		catch(e)
		{
			xmlhttp=false;
		}
	}
	return xmlhttp;
}

function serialMsg()
{
	if(http.readyState == 4)
	{
	//	alert(http.responseText);
		document.getElementById("sermsg").innerHTML = http.responseText;
	}
}
function checkSerial()
{
	var serial = document.getElementById('serial').value;
	var url= 'checkserial.php?serial=' + serial;			
//alert(url);
	http.open("GET",url, true);
	http.onreadystatechange=serialMsg;
	http.send(null);
}
function getPosition(e)
{
        e = e || window.event;
        var cursor = {x:0, y:0};
        if (e.pageX || e.pageY)
        {
                cursor.x = e.pageX;
                cursor.y = e.pageY;
        }
        else
        {
                var de = document.documentElement;
                var b = document.body;
                cursor.x = e.clientX +
                (de.scrollLeft || b.scrollLeft) - (de.clientLeft || 0);
                cursor.y = e.clientY +
                (de.scrollTop || b.scrollTop) - (de.clientTop || 0);
        }
        return cursor;
}
function showEdit()
{
	document.getElementById('editdiv1').style.display = 'none';
	document.getElementById('editdiv2').style.display = '';
}
function newProd()
{
	if(http.readyState == 4)
	{
	//	alert(http.responseText);
		document.getElementById("currprod").innerHTML = http.responseText;
		document.getElementById('editdiv1').style.display = '';
		document.getElementById('editdiv2').style.display = 'none';
	}
}
function updateProduct(selelm,id)
{
	var prodid = selelm.options[selelm.selectedIndex].value;
	var url= 'upprod.php?id=' + id + '&prodid=' + prodid;			
//alert(url);
	http.open("GET",url, true);
	http.onreadystatechange=newProd;
	http.send(null);
}
function showDetail()
{
	if(http.readyState == 4)
	{
	//	alert(http.responseText);
		document.getElementById('detaildiv').innerHTML = http.responseText;
		document.getElementById('detaildiv').style.display = '';
	}
}
function getDetail(selelm)
{
	var cat = selelm.options[selelm.selectedIndex].value;
	if(cat == '') return false;
	var url= 'getcatdetail.php?cat=' + cat;			
//alert(url);
	http.open("GET",url, true);
	http.onreadystatechange=showDetail;
	http.send(null);
}