private function newBlock($pl_id)
{
$pl = new playlist();
$pl->getPlaylistByID($pl_id);
$block = new playlist_bloecke();
$block->pl_id = $pl_id;
$block->pb_sort_order = $pl->getNextSortorder();
$block->pb_id = 'new';
$block->saveBlock();
echo $block->renderHTML($block->pb_sort_order) . '<div id="playlistBlockZiel"></div>';
}