if (Drupal.jsEnabled) {
  $(document).ready(function(){
    $('.superfish').find('ul').addClass('sf-menu');
    $('ul.sf-menu').superfish({ 
      delay:       '500',
      animation:   {opacity:'show'},
      speed:       'fast',
      autoArrows:  false,
      dropShadows: false
    });
  });
}