Problem s componentou Navigation

Zdravim, chcem sa opytat, preco mi pri volani componenty Navigation v sablone pomocou {widget navigation} ladenka vypisuje chybu:

Call to undefined method Navigation\Navigation::setCurrent() ? Vdaka

protected function createComponentNavigation($name) {
	    $nav = new Navigation($this, $name);
	    $nav->setupHomepage("Úvod", $this->link("Homepage:"));
	    $sec = $nav->add("Sekce", $this->link("Vykaz:", array("id" => 1)));
	    $article = $sec->add("Clanok", $this->link("Clanok:", array("id" => 1)));
	    $nav->setCurrent($article);
	}

Editoval isotrexin (4. 10. 2012 1:33)