function GetXmlHttpObject()
{
	var obj=null;
	try
	{
	 	// Firefox, Opera 8.0+, Safari
		obj=new XMLHttpRequest();
	}
	catch (e)
	{
	 	// Internet Explorer
	 	try
	  	{
	  		obj=new ActiveXObject("Msxml2.XMLHTTP");
		}
	 	catch (e)
	  	{
			obj=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	return obj;
}