function MakeRequestObject()
  {
   var xmlHttp;
   try
    {
     // Firefox, Opera 8.0+, Safari
     xmlHttp=new XMLHttpRequest();
    } catch (e) {
       // Internet Explorer
       try
        {
         xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
         try
          {
           xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
          } catch (e) {
           // alert("Your browser does not support AJAX!");        
           // Browser is not support AJAX
           return false;
          }
        }
     }
   return xmlHttp;
  }