/********/

var menu_items = [];

function menu_item () {
	this.normal = new Image ();
	this.overlay = new Image ();
}// menu_item;

/********/

function load_image (imagename) {
	var next_image = new menu_item;
	with (next_image) {
		normal.src = "images/" + imagename + "-normal.gif";
		overlay.src = "images/" + imagename + "-overlay.gif";
	}// with;
	menu_items [imagename] = next_image;
}// load_image;

/********/

function preload_images () {
	load_image ("mission");
	load_image ("about-us");
	load_image ("news");
	load_image ("partners");
	load_image ("help");
	load_image ("contact");
	load_image ("archives");
}// preload_images;

/********/

function change_image (image, type, name) {
	if (type == "overlay") image.src = menu_items [name].overlay.src;
	if (type == "normal") image.src = menu_items [name].normal.src;
}// change_image;

/********/