$(document).ready(function(){    
    $("ul.topnav li a").mouseover(function() { //When trigger is clicked...			
        $(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('normal'); //When the mouse hovers out of the subnav, move it back up
            });

    }).hover(function() { 
        $(this).addClass("subhover"); //On hover over, add class "subhover"
    }, function(){	//On Hover Out
        $(this).removeClass("subhover"); //On hover out, remove class "subhover"
    });
});