private static function checkUserIsIntranet($userId)
 {
     if (!isset(self::$cache['INTRANET_USERS'][$userId]) || !self::$cacheData) {
         self::$cache['INTRANET_USERS'][$userId] = CTasksTools::IsIntranetUser($userId);
     }
     return self::$cache['INTRANET_USERS'][$userId];
 }
 private function __isIntranetUser($userID)
 {
     return CTasksTools::IsIntranetUser($userID);
 }