/**
  * Кэш приказов угату
  *
  * @return CArrayList
  */
 private static function getCacheUsatuOrders()
 {
     if (is_null(self::$_cacheUsatuOrders)) {
         self::$_cacheUsatuOrders = new CArrayList();
     }
     return self::$_cacheUsatuOrders;
 }