var oReq= null;

	function createXMLHttpRequest(){
		try{
			oReq = new ActiveXObject("MSXML2.XMLHTTP");			
		}
		catch(err_MSXML2){
			try{
				oReq = new ActiveXObject("Microsoft.XMLHTTP");	
			}
			catch(err_Microsoft){	
				if(typeof XMLHttpRequest != "undefined")
					oReq = new XMLHttpRequest();
			}
		}		
	}