static function public_init()
 {
     $dir = dirname(__FILE__) . '/';
     require_once $dir . 'class-feed-photo.php';
     require_once $dir . 'class-api-photo.php';
     require_once $dir . 'class-feed.php';
     require_once $dir . 'class-fetcher.php';
     require_once $dir . 'class-display.php';
     require_once $dir . 'class-public.php';
     Slickr_Flickr_Public::init();
 }
 static function note_active()
 {
     self::$is_present = true;
 }
 function set_options($options)
 {
     if (count($options) > 0) {
         $s = sprintf('jQuery("#%1$s").data("options",%2$s);', $this->id, json_encode($options));
         if (Slickr_Flickr_Options::get_option('scripts_in_footer')) {
             Slickr_Flickr_Public::add_jquery($s);
             //save for later
         } else {
             return sprintf('<script type="text/javascript">%1$s</script>', $s);
             //output it now
         }
     }
     return '';
 }