$(
  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").hover(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"
      });

  });