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) {
		startseite_over = newImage("nav_images/startseite-over.gif");
		unternehmen_over = newImage("nav_images/unternehmen-over.gif");
		richard_kricke_over = newImage("nav_images/richard_kricke-over.gif");
		renate_senk_over = newImage("nav_images/renate_senk-over.gif");
		unsere_werte_over = newImage("nav_images/unsere_werte-over.gif");
		unsere_leistungen_over = newImage("nav_images/unsere_leistungen-over.gif");
		lohn_gehalt_over = newImage("nav_images/lohn_gehalt-over.gif");
		personal_administration_management_over = newImage("nav_images/personal_administration_-23.gif");
		altersversorgung_over = newImage("nav_images/altersversorgung-over.gif");
		travelmanagement_over = newImage("nav_images/travelmanagement-over.gif");
		gesundheitsmanagement_over = newImage("nav_images/gesundheitsmanagement-over.gif");
		kosten_over = newImage("nav_images/kosten-over.gif");
		netzwerk_over = newImage("nav_images/netzwerk-over.gif");
		jobboerse_over = newImage("nav_images/jobboerse-over.gif");
		tagungszentrum_over = newImage("nav_images/tagungszentrum-over.gif");		
		kontakt_over = newImage("nav_images/kontakt-over.gif");
		impressum_over = newImage("nav_images/impressum-over.gif");
		preloadFlag = true;
	}
}