// preload navigation images:
function preloadImages() {
	guestrooms_on.src = "/images/nav/guestrooms_on.gif";
	guestrooms_off.src = "/images/nav/guestrooms_off.gif";
	
	rands_on.src = "/images/nav/rands_on.gif";
	rands_off.src = "/images/nav/rands_off.gif";
	
	directions_on.src = "/images/nav/directions_on.gif";
	directions_off.src = "/images/nav/directions_off.gif";
	
	attractions_on.src = "/images/nav/attractions_on.gif";
	attractions_off.src = "/images/nav/attractions_off.gif";
	
	contact_on.src = "/images/nav/contact_on.gif";
	contact_off.src = "/images/nav/contact_off.gif";
	
}