function get_endchain_firstchild_url($classname,$id,$baseurl) {

      $url = '';
      $passedObjects = array();
      $passedFlag = 0;

      $curObj->id = $id;
      $curObj->class = $this->classes[$classname]->id;

      while ($this->idToClassName[$curObj->class] == $classname) {
        if (isset($this->links->childs[$curObj->class][$curObj->id]) && count($this->links->childs[$curObj->class][$curObj->id])) {
          foreach ($this->links->childs[$curObj->class][$curObj->id] as $child) {
            $passedFlag = 0;
            foreach ($passedObjects as $passed)
              if (($child->class == $passed->class) && ($child->id == $passed->id)) { $passedFlag = 1; break; }
            if (!$passedFlag) {
              $passedObjects[] = $curObj;
              $curObj->class = $child->class;
              $curObj->id = $child->id;
              $url .= '/'.$this->urlnames[$child->class][$child->id];
              break;
            }
          }
          if ($passedFlag)  die('Невозможно создать ссылку на объект! Обнаружено зацикливание ('.$this->urlnames[$curObj->class][$curObj->id].').');
        } else { $url=''; break; }
      }

      return $baseurl.$url;
    }