home = new Image();
home.src = "img/home.gif";

email = new Image();
email.src = "img/email.gif";

impressum = new Image();
impressum.src = "img/impressum.gif";

news = new Image();
news.src = "img/news.gif";

projektablauf = new Image();
projektablauf.src = "img/projektablauf.gif";

spezialgebiete = new Image();
spezialgebiete.src = "img/spezialgebiete.gif";

philosophie = new Image();
philosophie.src = "img/philosophie.gif";

kontakt = new Image();
kontakt.src = "img/kontakt.gif";

function change(wich) {
	normal = window.document.menu.src;
	window.document.menu.src = wich.src;
}
function restore() {
	window.document.menu.src = normal;
}