$(document).ready(function(){  
   
     
   
     $("ul.topnav li a").click(function() { //When trigger is clicked...  
   
         //Following events are applied to the subnav itself (moving subnav up and down)  
         $(this).parent().find("ul.subnav").slideDown('fast').show(); //Drop down the subnav on click  
   
         $(this).parent().hover(function() {  
         }, function(){  
             $(this).parent().find("ul.subnav").slideUp('slow'); //When the mouse hovers out of the subnav, move it back up  
        });  
   
        //Following events are applied to the trigger (Hover events for the trigger)  
        }).hover(function() {  
          $(this).addClass("subhover"); //On hover over, add class "subhover"  
         }, function(){  //On Hover Out  
            $(this).removeClass("subhover"); //On hover out, remove class "subhover"  
     });    
 });