function GetXmlHttpObject(){
	var XMLHttp = null;
	// active x internetexplorer ---------------------------------------------------------
	try	{
		XMLHttp = new ActiveXObject('MSXML2.XMLHTTP.3.0'); // ie7
	}catch (e){
				try	{
					XMLHttp = new ActiveXObject("Msxml2.XMLHTTP"); //ie 6
				}catch(e){
				try{
					XMLHttp = new ActiveXObject("Microsoft.XMLHTTP");//ie older versions
				}catch(e){
			
			}	
	}
	}
	// active x internetexplorer ---------------------------------------------------------
	
	if (XMLHttp == null)
	{
	XMLHttp = new XMLHttpRequest();
	}
	return XMLHttp; 
}