/**
  * Возвращает синглтон
  * @return ForumOnline
  */
 public static function Instance($Cat = '0', $Topic = '0', $MainPage = false)
 {
     if (!self::$_instance instanceof ForumOnline) {
         self::$_instance = new ForumOnline();
         self::$_instance->Process($Cat, $Topic);
         self::$_instance->LoadOnline($MainPage);
     }
     return self::$_instance;
 }