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) {
		aboutthegallerysub_over = newImage("/images/sidebar/aboutthegallerysub-over.gif");
		exhibitionssub_over = newImage("/images/sidebar/exhibitionssub-over.gif");
		galleryartistssub_over = newImage("/images/sidebar/galleryartistssub-over.gif");
		africanartsub_over = newImage("/images/sidebar/africanartsub-over.gif");
		contactussub_over = newImage("/images/sidebar/contactussub-over.gif");
		home_over = newImage("/images/sidebar/home-over.gif");
		aboutthegallery_over = newImage("/images/sidebar/aboutthegallery-over.gif");
		exhibitions_over = newImage("/images/sidebar/exhibitions-over.gif");
		galleryartists_over = newImage("/images/sidebar/galleryartists-over.gif");
		africanart_over = newImage("/images/sidebar/africanart-over.gif");
		contactus_over = newImage("/images/sidebar/contactus-over.gif");
		preloadFlag = true;
	}
}