var xmlHttp=null;
var xmlHttp1=null;
var xmlHttp2=null;
function GetXmlHttpObject()
{
var xmlReq=null;
try
 {
 // Firefox, Opera 8.0+, Safari
 xmlReq=new XMLHttpRequest();
 }
catch (e)
 {
 //Internet Explorer
 try
  {
  xmlReq=new ActiveXObject("Msxml2.XMLHTTP");
  }
 catch (e)
  {
  xmlReq=new ActiveXObject("Microsoft.XMLHTTP");
  }
 }
return xmlReq;
}