var Core = {	
	start: function(){
		Menu.start();
	}
};

var Menu = {
	start: function(){
		Menu.makeMenusActive();
	},
	
	makeMenusActive: function(){
		$$('.menu').each(function(el){
			el.addEvent('mouseover', function(){
				Menu.showMenu(el.getProperty('id').replace(/menu_/,'menudrop_'));
			}.bind(this, el));
			
			el.addEvent('mouseout', function(){
				Menu.hideMenu(el.getProperty('id').replace(/menu_/,'menudrop_'));
			}.bind(this, el));
		});
	},
	
	showMenu: function (menu){
		$(menu).addClass('visible');
	},
	
	hideMenu: function (menu){
		$(menu).removeClass('visible');
	}
};

window.addEvent('load', Core.start);