function init() {
	$('.navbtn').hover(navOver, navOut);
	$('.navbtn').find('.item').hover(navOverItem, navOutItem);
}

function navOver(e) {
	$(this).children("img").attr("src",  $(this).children("img").attr("src").substring(0, $(this).children("img").attr("src").length-4) + "_over.gif");
	$(this).find(".subnav").css("display", "block");
}

function navOut(e) {
	if ($(this).children("img").attr("src").indexOf("_over") > -1) {
		$(this).children("img").attr("src",  $(this).children("img").attr("src").substring(0, $(this).children("img").attr("src").length-9) + ".gif");
		$(this).find(".subnav").css("display", "none");
	}
}


function navOverItem(e) {
	$(this).css("background-color", "#00336c");
	$(this).find("a").css("color", "#fff");
}

function navOutItem(e) {
	$(this).css("background-color", "transparent");
	$(this).find("a").css("color", "#00336c");
}