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) {
		navi_toppage_over = newImage("navi_parts/navi_toppage-over.gif");
		navi_shopping_over = newImage("navi_parts/navi_shopping-over.gif");
		navi_privacy_over = newImage("navi_parts/navi_privacy-over.gif");
		navi_items_over = newImage("navi_parts/navi_items-over.gif");
		navi_sitemap_over = newImage("navi_parts/navi_sitemap-over.gif");
		navi_info_over = newImage("navi_parts/navi_info-over.gif");
		navi_make_over = newImage("navi_parts/navi_make-over.gif");
		navi_hair_over = newImage("navi_parts/navi_hair-over.gif");
		navi_facial_over = newImage("navi_parts/navi_facial-over.gif");
		navi_bath_over = newImage("navi_parts/navi_bath-over.gif");
		navi_esthe_over = newImage("navi_parts/navi_esthe-over.gif");
		navi_wellness_over = newImage("navi_parts/navi_wellness-over.gif");
		preloadFlag = true;
	}
}