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_about_7 = newImage("image/ui-nav-about_7.gif");
		ui_nav_news_8 = newImage("image/ui-nav-news_8.gif");
		ui_nav_news_9 = newImage("image/ui-nav-news_9.gif");
		ui_nav_marketingprograms_10 = newImage("image/ui-nav-marketingprograms_10.gif");
		ui_nav_marketingprograms_11 = newImage("image/ui-nav-marketingprograms_11.gif");
		ui_nav_partners_12 = newImage("image/ui-nav-partners_12.gif");
		ui_nav_partners_13 = newImage("image/ui-nav-partners_13.gif");
		ui_nav_gallery_14 = newImage("image/ui-nav-gallery_14.gif");
		ui_nav_gallery_15 = newImage("image/ui-nav-gallery_15.gif");
		ui_nav_contact_16 = newImage("image/ui-nav-contact_16.gif");
		ui_nav_contact_17 = newImage("image/ui-nav-contact_17.gif");
		preloadFlag = true;
	}
}