static function thumb_top($theme, $item)
 {
     if (favourites_configuration::isUsersOnly() && identity::active_user()->name == "guest") {
         return;
     }
     if ($item->type == "album" && favourites_configuration::canSelectAlbums() || $item->type != "album" && favourites_configuration::canSelectItems()) {
         $view = new View("add_to_favourites.html");
         $view->item = $item;
         $view->favourites = Favourites::getOrCreate();
         return $view->render();
     }
 }
 public function clear_favourites()
 {
     Favourites::getOrCreate()->clear();
 }