function InitializeRequest()
   {
    try
    {
     request = new ActiveXObject("Microsoft.XMLHTTP");
     //Try creating an XMLHTTP Object
    }
    catch(Ex)
    {
     try
     {
      //First failure, try again creating an XMLHTTP Object
      request = new ActiveXObject("Microsoft.XMLHTTP");
     }
     catch(Ex)
     {
        //Else assign null to request

    request = null;
     }
    }
    if(!request&&typeof XMLHttpRequest != 'undefined')
    {
     request = new XMLHttpRequest();
    }
   }
   
function ajax_CreateXMLHTTPRequest()
{
    var xmlHttpRequest = null;
    if (window.XMLHttpRequest)
    {
        xmlHttpRequest = new XMLHttpRequest();
    }
    else if (typeof ActiveXObject != "undefined")
    {
        xmlHttpRequest = new ActiveXObject("Microsoft.XMLHTTP");
    }
    return xmlHttpRequest; 
}