$(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").hover(function() { // When trigger is hovered ...

        // Following events are applied to the subnav itself (moving subnav up and down)
        $(this).parent().find("ul.subnav").stop().slideDown('fast').show('slow', function() {
            $(this).height("auto");
        }); // Drop down the subnav on click

        $(this).parent().hover(function() {
        }, function() {
            $(this).parent().find("ul.subnav").stop().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"
    });

});