button1 = new Image();
button1.src = "image/untern0d.gif";
overbutton1 = new Image();
overbutton1.src = "image/untern1d.gif";

button2 = new Image();
button2.src = "image/leistu0d.gif";
overbutton2 = new Image();
overbutton2.src = "image/leistu1d.gif";

button3 = new Image();
button3.src = "image/projek0d.gif";
overbutton3 = new Image();
overbutton3.src = "image/projek1d.gif";

button4 = new Image();
button4.src = "image/kontak0d.gif";
overbutton4 = new Image();
overbutton4.src = "image/kontak1d.gif";

button5 = new Image();
button5.src = "image/anfahr0d.gif";
overbutton5 = new Image();
overbutton5.src = "image/anfahr1d.gif";

button6 = new Image();
button6.src = "image/impres0d.gif";
overbutton6 = new Image();
overbutton6.src = "image/impres1d.gif";

button7 = new Image();
button7.src = "image/home0.gif";
overbutton7 = new Image();
overbutton7.src = "image/home1.gif";

button8 = new Image();
button8.src = "image/profil0d.gif";
overbutton8 = new Image();
overbutton8.src = "image/profil1d.gif";

button9 = new Image();
button9.src = "image/mitarb0d.gif";
overbutton9 = new Image();
overbutton9.src = "image/mitarb1d.gif";

button10 = new Image();
button10.src = "image/kunden0d.gif";
overbutton10 = new Image();
overbutton10.src = "image/kunden1d.gif";

button11 = new Image();
button11.src = "image/senden0d.gif";
overbutton11 = new Image();
overbutton11.src = "image/senden1d.gif";

button12 = new Image();
button12.src = "image/loesch0d.gif";
overbutton12 = new Image();
overbutton12.src = "image/loesch1d.gif";



function Bildwechsel(Bildnr,Bildobjekt) {

 window.document.images[Bildnr].src = Bildobjekt.src;

}