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) {
		// Hauptnavigation
		gruppe_over = newImage("../img/gruppe-over.gif");
		presse_over = newImage("../img/presse-over.gif");
		karriere_over = newImage("../img/karriere-over.gif");
		business_over = newImage("../img/business-over.gif");
		produkte_over = newImage("../img/produkte-over.gif");
		// Logos
		baedeker_over = newImage("../img/baedecker-over.gif");
		marcopolo_over = newImage("../img/marcopolo-over.gif");
		shell_over = newImage("../img/shell-over.jpg");
		hb_over = newImage("../img/hb-over.jpg");
		falk_over = newImage("../img/falk-over.gif");
		kompass_over = newImage("../img/kompass-over.gif");
		// Navi links unten
		kontakt_over = newImage("../img/kontakt-over.gif");
		anreise_over = newImage("../img/anreise-over.gif");
		suche_over = newImage("../img/suche-over.gif");
		sitemap_over = newImage("../img/sitemap-over.gif");
		impressum_over = newImage("../img/impressum-over.gif");
		
		preloadFlag = true;
	}
}