dload = true; return parent::render(); } /*! sets relation for rendering */ protected function set_relation() { if (!isset($_GET[$this->parent_name])) $this->request->set_relation(false); } public function xml_start(){ if (isset($_GET[$this->parent_name])) { return ""; } else { return ""; } } /*! set maximum level of tree @param max_level maximum level */ public function setMaxLevel($max_level) { $this->render->set_max_level($max_level); } public function get_level() { return $this->render->get_level($this->parent_name); } } ?>