function mainmenu(){
$(" #dropdown li").hoverIntent(function(){
		$(this).find('ul:first').css({visibility: "visible",display: "none"}).slideDown("slow");
		},function(){
		$(this).find('ul:first').css({visibility: "hidden"}).slideUp("slow");
		});
}
 $(document).ready(function(){					
	mainmenu();
});