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) {
		ui_headernav_home_5 = newImage("image/ui-headernav-home_5.gif");
		ui_headernav_contact_6 = newImage("image/ui-headernav-contact_6.gif");
		ui_headernav_sitemap_7 = newImage("image/ui-headernav-sitemap_7.gif");
		ui_nav_facilities_10 = newImage("image/ui-nav-facilities_10.gif");
		ui_nav_instructors_11 = newImage("image/ui-nav-instructors_11.gif");
		ui_nav_memberships_12 = newImage("image/ui-nav-memberships_12.gif");
		ui_nav_privatelessons_13 = newImage("image/ui-nav-privatelessons_13.gif");
		ui_nav_contact_14 = newImage("image/ui-nav-contact_14.gif");
		preloadFlag = true;
	}
}