$(function(){  
            //$('ul.sf-menu').superfish();  
            $('ul.sf-menu').superfish({  
              delay: 100,        // one second delay on mouseout   
              animation: { opacity: 'show', height: 'show' },   // fade-in and slide-down animation   
              speed: 'fast',      // slow animation speed   
              autoArrows: true,   // enable generation of arrow mark-up
              dropShadows: true   // enable drop shadows   
            });               
          });