function GetXmlHttpObject()
{ 
var objXMLHttp = false;
try {
  objXMLHttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
  try {
    objXMLHttp = new ActiveXObject("Microsoft.XMLHTTP");
  } catch (e2) {
    objXMLHttp = false;
  }
}
if (!objXMLHttp && typeof XMLHttpRequest != 'undefined') {
  objXMLHttp = new XMLHttpRequest();
}
return objXMLHttp
}