function ajaxAdminPW($param = NULL)
 {
     try {
         if (empty($_POST["pwNew"]) || empty($_POST["pwConfirm"])) {
             throw new Exception("Password cannot be empty.");
         }
         $userOperator = new UserBatchOperator();
         if (!$this->user->isAdmin) {
             throw new Exception("Access Denied");
         }
         $userOperator->adminSetPassword($param["userId"], $_POST["pwNew"], $_POST["pwConfirm"]);
         $result["error"] = 0;
         $result["msg"] = "Amendment is successful";
     } catch (Exception $ex) {
         $result["error"] = 1;
         $result["msg"] = $ex->getMessage();
     }
     echo json_encode($result);
 }