var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		start_over = newImage("images/local_nav/start_over.gif");
		mutual_over = newImage("images/local_nav/mutual_over.gif");
		after_over = newImage("images/local_nav/after_over.gif");
		contact_over = newImage("images/local_nav/contact_over.gif");
		home_over = newImage("images/local_nav/home_over.gif");
		preloadFlag = true;
	}
}