window.addEvent('domready', function(){
	$('drop_down_menu').getElements('li.menu').each( function( elem ){
	
		var liste = elem.getElements('ul.links');
		
		if(liste && liste.length>0) { 

		  var slideFX = new Fx.Slide(liste[0], {
		   duration: 300
          ,transition: Fx.Transitions.Quart.easeOut
		  });
		
		  slideFX.hide();
		  elem.setStyles({'display':'block'});
		
		  elem.addEvents({
			'mouseenter' : function(){
				slideFX.cancel();
				slideFX.slideIn();
			},
			'mouseleave' : function(){
				slideFX.cancel();
				slideFX.slideOut();
			}
		  });
		  
		}
		
	})
});