window.addEvent('domready', function(){
    $('drop_down_menu').getElements('ul.links').setStyle('display','');
    $('drop_down_menu').getElements('li.menu').each( function( elem ){
        var list = elem.getElement('ul.links');
        var myFx = new Fx.Slide(list).hide();
        elem.addEvents({
            'mouseenter' : function(){
                myFx.cancel();
                myFx.slideIn();
                elem.getElement('a').setStyle('color','Yellow')
                elem.getElement('a').setStyle('background-image','url(/images/dd_nav_bg_hover.png)')
                elem.getElement('a').setStyle('text-decoration','none')
            },
            'mouseleave' : function(){
                myFx.cancel();
                myFx.slideOut();
                elem.getElement('a').setStyle('color','White')
                elem.getElement('a').setStyle('background-image','url(/images/dd_nav_bg.png)')
            }
        });

    });
});