function newImage(arg) {
if (document.images) {
rslt = new Image();
rslt.src = arg;
return rslt;}}

if (document.images) {
n_bh = newImage("images/n_bh.gif");}

function sh_item(where) {
if (document.images) {
storedLocation=where;
document.images["n"+where].src="images/n_bh.gif"; }}

function hd_item() {
if (document.images) {
where=storedLocation;
document.images["n"+where].src="images/n_b.gif"; }}

function newImage(arg) {
if (document.images) {
rslt = new Image();
rslt.src = arg;
return rslt;}}

function changeImages() {
if (document.images && (preloadFlag == true)) {
for (var i=0; i<changeImages.arguments.length; i+=2) {
document[changeImages.arguments[i]].src = changeImages.arguments[i+1];}}}

var preloadFlag = false;
function preloadImages() {
if (document.images) {
about_over = newImage("images/about-over.gif");
quotation_over = newImage("images/quotation-over.gif");
faq_over = newImage("images/faq-over.gif");
contact_over = newImage("images/contact-over.gif");
search_over = newImage("images/search-over.gif");
links_over = newImage("images/links-over.gif");
preloadFlag = true;}}