$(document).ready(function(){ 
     $("ul.subnav").parent().append("<span></span>"); //Only shows drop down trigger when js is enabled (Adds empty span tag after ul.subnav*)  
   
     $("ul.topnav li span").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"  
     });  
   
 });
 function top() {
    if (document.body.scrollTop != 0 ||
        document.documentElement.scrollTop != 0) {
        window.scrollBy(0, -40);
        t = setTimeout("top()", 10);
    } else {
		if(t)
        clearTimeout(t);
    }
}