$(document).ready(function(){

	// remove link background images since we're re-doing the hover interaction below 
	// (doing it this way retains the CSS default hover states for non-javascript-enabled browsers)
	// we also want to only remove the image on non-selected nav items, so this is a bit more complicated
	$(".nav").children("li").each(function() {
		var current = "nav selected-" + ($(this).attr("class"));
		var parentClass = $(".nav").attr("class");
		if (parentClass != current) {
			$(this).children("a").css({backgroundImage:"none"});
		}
	});
	$("h1 a.homelink").css({backgroundImage:"none"});


	// create events for each nav item
	attachNavEvents(".nav", "home-page");
	attachNavEvents(".nav", "features");
	attachNavEvents(".nav", "pricing");
	attachNavEvents(".nav", "sign-up");
	attachNavEvents(".nav", "tour");
	attachNavEvents(".nav", "blog");

	attachNavEvents("h1", "homelink");


	function attachNavEvents(parent, myClass) {
		$(parent + " ." + myClass).mouseover(function() {
			$(this).append('<span class="nav-' + myClass + '"></span>');
			$("span.nav-" + myClass).css({display:"none"}).fadeIn(200);
		}).mouseout(function() {
			$("span.nav-" + myClass).fadeOut(200, function() {
				$(this).remove();
			});
		}).mousedown(function() {
			$("span.nav-" + myClass).attr("class", "nav-" + myClass + "-click");
		}).mouseup(function() {
			$("span.nav-" + myClass + "-click").attr("class", "nav-" + myClass);
		});
	}


});