window.addEvent('domready', function(){
  $('drop_down_menu').getElements('li.section').each( function( elem ){
    var list = elem.getElement('ul.subsection');
    if (list != null) {
    //var myFx = new Fx.Slide(list).hide();
    list.setStyle('display', 'none');
		elem.addEvents({
			'mouseenter' : function(){
				list.setStyle('display', '');
        //myFx.cancel();
				//myFx.show();
				//myFx.slideIn();
			},
			'mouseleave' : function(){
				list.setStyle('display', 'none');
        //myFx.cancel();
				//myFx.hide();
				//myFx.slideOut();
			}
		});
		}
	})
});