Normal1 = new Image();
Normal1.src = "images/btn_newsletter.gif";
Highlight1 = new Image();
Highlight1.src = "images/btn_newsletter_h.gif";

Normal2 = new Image();
Normal2.src = "images/btn_links.gif";
Highlight2 = new Image();
Highlight2.src = "images/btn_links_h.gif";

Normal3 = new Image();
Normal3.src = "images/btn_kontakt.gif";
Highlight3 = new Image();
Highlight3.src = "images/btn_kontakt_h.gif";

Normal4 = new Image();
Normal4.src = "images/btn_impressum.gif";
Highlight4 = new Image();
Highlight4.src = "images/btn_impressum_h.gif";

Normal5 = new Image();
Normal5.src = "images/btn_glossar.gif";
Highlight5 = new Image();
Highlight5.src = "images/btn_glossar_h.gif";

Normal6 = new Image();
Normal6.src = "images/btn_uebersicht.gif";
Highlight6 = new Image();
Highlight6.src = "images/btn_uebersicht_h.gif";

Normal7 = new Image();
Normal7.src = "images/btn_suchergebnis.gif";
Highlight7 = new Image();
Highlight7.src = "images/btn_suchergebnis_h.gif";

Normal8 = new Image();
Normal8.src = "images/btn_home.gif";
Highlight8 = new Image();
Highlight8.src = "images/btn_home_h.gif";

function Bildwechsel(Bildname,Bildobjekt) {
  window.document.images[Bildname].src = Bildobjekt.src;
}