$(document).ready(function(){

	$(".nav").children("li").each(function() {
		var current = "nav current-" + ($(this).attr("class"));
		var parentClass = $(".nav").attr("class");
		if (parentClass != current) {
			$(this).children("a").css({backgroundImage:"none"});
		}
	});	

	attachNavEvents(".nav", "n1");
	attachNavEvents(".nav", "n2");
	attachNavEvents(".nav", "n3");
	attachNavEvents(".nav", "n4");
	attachNavEvents(".nav", "n5");

	function attachNavEvents(parent, myClass) {
		$(parent + " ." + myClass).mouseover(function() {
			$(this).append('<div class="nav-' + myClass + '"></div>');
			$("div.nav-" + myClass).css({display:"none"}).fadeIn(200);
		}).mouseout(function() {
			// fade out & destroy pseudo-link
			$("div.nav-" + myClass).fadeOut(200, function() {
				$(this).remove();
			});
		});
	}

});