if (typeof ActiveXObject != 'undefined' && typeof XMLHttpRequest == 'undefined') {
  XMLHttpRequest = function () {
    try {
      return new ActiveXObject('Msxml2.XMLHTTP');
    } catch (e) {
      try {
        return new ActiveXObject('Microsoft.XMLHTTP');
      } catch (e) {
        throw 'Browser does not support XMLHttpRequest\n' + e;
      }
    }
  };
}