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) {
		Galerie_over = newImage("fileadmin/v_frey/nilpferdgeschichten/img/Galerie-over.gif");
		Shop_over = newImage("fileadmin/v_frey/nilpferdgeschichten/img/Shop-over.gif");
		Vera_Frey_over = newImage("fileadmin/v_frey/nilpferdgeschichten/img/Vera-Frey-over.gif");
		Links_over = newImage("fileadmin/v_frey/nilpferdgeschichten/img/Links-over.gif");
		Kontakt_over = newImage("fileadmin/v_frey/nilpferdgeschichten/img/Kontakt-over.gif");
		preloadFlag = true;
	}
}