// JavaScript Document
function ajaxInit() {

  var xmlhttp;

  try {
     xmlhttp = new XMLHttpRequest();
  } catch(ee) {
     try {
        xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
     } catch(e) {
        try {
           xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
        } catch(E) {
           xmlhttp = false;
        }
     }
  }

  return xmlhttp;

}