window.addEvent('domready', function() {
	
	$$('#navigation ul.level1 > li').each(function(liLevel1) {
	    	liLevel1.getElements('ul.level2').each(function(ulLevel2) {
	    		ulLevel2.setStyle('display', 'block');
	    	
	    		var myVerticalSlide = new Fx.Slide(ulLevel2, {
	    			mode: 'vertical',
	    			duration: '300ms',
	    			link: 'cancel',
	    			overflow: 'hidden'    			
	    		});
	    	
	    		myVerticalSlide.hide();
	    	
	    		liLevel1.addEvents({
	    			'mouseenter': function(){
	    				myVerticalSlide.slideIn();
					},
					'mouseleave': function(){
						myVerticalSlide.slideOut();
					}
		 		});
	    	});
	    });
});