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) {
home_over = newImage("images/home-over.png");
news_over = newImage("images/news-over.png");
gigs_over = newImage("images/gigs-over.png");
about_over = newImage("images/about-over.png");
multimedia_over = newImage("images/multimedia-over.png");
community_over = newImage("images/community-over.png");
contact_over = newImage("images/contact-over.png");
preloadFlag = true;
}
}