// drop down menu

$(document).ready(function () {

  $("ul.subnav").parent().prepend("<span></span>"); //Only shows drop down trigger when js is enabled (Adds empty span tag after ul.subnav*) 

  $("ul.topnavigation li a").hover(function () { //When trigger is hovered...     
    //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 hover 
    $(this).parent().find("span").addClass("subhover"); //On hover over, add class "subhover" 

    $(this).parent().hover(function () {
    }, function () {
      $(this).parent().find("ul.subnav").slideUp('slow'); //When the mouse hovers out of the subnav, move it back up 
      $(this).parent().find("span").removeClass("subhover"); //On hover out, remove class "subhover" 
    });
  });

});