$(document).ready(function(){ 
        $("ul.sf-menu").superfish({ 
            delay:       500,                            // one second delay on mouseout 
            animation:   {opacity:'show',height:'show'},  // fade-in and slide-down animation 
            speed:       'fast',                          // faster animation speed 
            autoArrows:  false,                           // disable generation of arrow mark-up 
            dropShadows: false 
        }); 
    });