// JavaScript Document
function GetXmlHttpObject() {
   try { return new ActiveXObject("Msxml2.XMLHTTP");  } catch(e) {} //IE
   try { return new ActiveXObject("Microsoft.XMLHTTP"); } catch(e) {} //IE
   try { return new XMLHttpRequest(); } catch(e) {} //Native Javascript
   alert("XML Http Request not found.\n Make sure Your browser's JavaScript is enabled.");
   return null;
}