window.addEvent('domready', function(){
	$$('ul#main-menu li').each(function(el){
		el.addEvent('mouseover', function(){
			if(subMenu=this.getElement('ul')){
				subMenu.setStyle('display','block');
			}
		});

		el.addEvent('mouseleave', function(){
			if(subMenu=this.getElement('ul')){
				subMenu.setStyle('display','none');
			}
		});

	});
	
});