// Source :
// http://www.kriesi.at/archives/create-a-multilevel-dropdown-menu-with-css-and-improve-it-via-jquery
function mainmenu(zone){
$(" #"+zone+" ul ").css({display: "none"}); // Opera Fix
$(" #"+zone+" li").hover(function(){
		$(this).find('ul:first').css({visibility: "visible",display: "none"}).show(400);
		},function(){
		$(this).find('ul:first').css({visibility: "hidden"});
		});
}

 
 
 $(document).ready(function(){					
	mainmenu('nav');
	mainmenu('nav2');
});