var xmlHttp;
function createXMLHttpRequest() {
  if (window.ActiveXObject) {
      xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
  }
  else if (window.XMLHttpRequest) {
      xmlHttp = new XMLHttpRequest();                
  }
  if (!xmlHttp) { 
	window.alert(JS_LANG['jsObjectExam']);
	return false;
  }
}