/**
  * Дочерние разделы
  * @param integer $level
  * @return array
  */
 public function getChilds($level = 1)
 {
     $ret = self::getListByField("=IBLOCK_SECTION_ID", $this->ID)->fetchAll();
     if ($level !== 1) {
         $nowLevel = 1;
         foreach ($ret as $row) {
             $row = new self($row);
             $ret = array_merge($ret, $row->getChilds());
             $nowLevel++;
             if ($nowLevel == $level) {
                 break;
             }
         }
     }
     return $ret;
 }