// JavaScript Document
var XMLHTTPREQUEST_MS_PROGIDS = new Array("Msxml2.XMLHTTP.7.0","Msxml2.XMLHTTP.6.0","Msxml2.XMLHTTP.5.0","Msxml2.XMLHTTP.4.0","MSXML2.XMLHTTP.3.0","MSXML2.XMLHTTP","Microsoft.XMLHTTP");
function getXMLHttpRequest()
{
  var httpRequest = null;
  // Create the appropriate HttpRequest object for the browser.
  if (window.XMLHttpRequest != null)
    httpRequest = new window.XMLHttpRequest();
  else if (window.ActiveXObject != null)
  {
    // Must be IE, find the right ActiveXObject.
    var success = false;
    for (var i = 0;i < XMLHTTPREQUEST_MS_PROGIDS.length && !success;i++)
    {
      try
      {
        httpRequest = new ActiveXObject(XMLHTTPREQUEST_MS_PROGIDS[i]);
        success = true;
      }
      catch (ex)
      {}
    }
  }
   // Display an error if we couldn't create one.
  if (httpRequest == null)
    alert("Error in HttpRequest():\n\n" + "Cannot create an XMLHttpRequest object.");
  // Return it.
  return httpRequest;
  }  
   var objXMLHttpRequest = getXMLHttpRequest();