public static function shortcode_callback($atts)
{
//Defaults to null URL. If no limit set, default to 1000 (max album size, besides Timeline)
extract(shortcode_atts(array('url' => '', 'limit' => '1000'), $atts));
self::_set_album_url($url);
self::$album_limit = $limit;
//Sets up album HTML. Gathers data from class variables.
return self::print_album();
}
