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_nav_03_9 = newImage("image/ui-nav_03_9.gif");
		ui_nav_04_10 = newImage("image/ui-nav_04_10.gif");
		ui_nav_05_11 = newImage("image/ui-nav_05_11.gif");
		ui_nav_06_12 = newImage("image/ui-nav_06_12.gif");
		ui_nav_07_13 = newImage("image/ui-nav_07_13.gif");
		ui_nav_media_14 = newImage("image/ui-nav-media_14.gif");
		ui_nav_contact_15 = newImage("image/ui-nav-contact_15.gif");
		ui_nav_imagelibrary_on = newImage("image/ui-nav-imagelibrary-on.gif");
		ui_nav_enews_16 = newImage("image/ui-nav-enews_16.gif");
		preloadFlag = true;
	}
}