var navItemActive = false;
var navSubItemActive = false;

$(initTopNav);

function initTopNav() {

	$("#topNav div ul li.level1:last").addClass("last");
	$("#topNav div ul li.level1:last a.level1").addClass("last");

	$("#topNav ul li").bind("mouseover", function() {
		clearActiveNavItem();
		navItemActive = true;
		$(this).addClass("hover");
	});

	$("#topNav ul li").bind("mouseout", function() {
		setTimeout("clearActiveNavItem()", 500);
		navItemActive = false;
	});

	$("#topNav ul li li").bind("mouseover", function() {
		clearActiveNavSubItem();
		navSubItemActive = true;
		$(this).addClass("hover");
	});

	$("#topNav ul li li").bind("mouseout", function() {
		setTimeout("clearActiveNavSubItem()", 500);
		navSubItemActive = false;
	});
	
}

function clearActiveNavSubItem() {
	if (!navSubItemActive)
		$("#topNav li li").removeClass("hover");
}

function clearActiveNavItem() {
	if (!navItemActive)
		$("#topNav ul li").removeClass("hover");
}