function getHTTPObject() {
   var xmlhttp;
   /*@cc_on
   @if (@_jscript_version >= 5)
     try {
         xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
     } catch (e) {
         try {
            xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
         } catch (E) {
            xmlhttp = false;
         }
     }
     @else xmlhttp = false;
     @end @*/
     if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
         try { xmlhttp = new XMLHttpRequest(); } catch (e) { xmlhttp = false; }
     }
     return xmlhttp;
}