var currentNavState;
var currentNavQuery;
var topNavElements = ["jewellery-dd", "watches-dd", "diamonds-dd", "personalised-dd"];

function init() {
	initTopNav();
}

function initTopNav() {
	dojo.forEach(topNavElements, function(element) {
		var menuItem = dojo.byId(element);
		var menuList = dojo.byId(element + "-nav");
		dojo.connect(menuItem, "mouseenter", function() {showNav(element);});
		dojo.connect(menuItem, "mouseleave", function(e) {hideNav(element);});
	});
}

function showNav(nav) {
	var navItem = dojo.byId(nav);
	var navContents = dojo.byId(nav + "-nav");
	dojo.addClass(navItem, "highlighted");
	dojo.style(navContents, "visibility", "visible");
	dojo.style(navContents, "zIndex", "99");
}

function hideNav(nav) {
	var navItem = dojo.byId(nav);
	var navContents = dojo.byId(nav + "-nav");
	dojo.style(navContents, "visibility", "hidden");
	dojo.removeClass(navItem, "highlighted");
}