var http = createRequestObject();

function createRequestObject()
{
	var ro;
	var browser = navigator.appName;
	if(browser == "Microsoft Internet Explorer")
	{
		ro = new ActiveXObject("Microsoft.XMLHTTP");
	}
	else
	{
		ro = new XMLHttpRequest();
	}
	return ro;
}


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;
 }