start1 = new Image();
start1.src = "images/navi/st_n.gif";
start2 = new Image();
start2.src = "images/navi/st_a.gif";

sfsu1 = new Image();
sfsu1.src = "images/navi/sfsu_n.gif";
sfsu2 = new Image();
sfsu2.src = "images/navi/sfsu_a.gif";

dj1 = new Image();
dj1.src = "images/navi/dj_n.gif";
dj2 = new Image();
dj2.src = "images/navi/dj_a.gif";

local1 = new Image();
local1.src = "images/navi/loc_n.gif";
local2 = new Image();
local2.src = "images/navi/loc_a.gif";

veran1 = new Image();
veran1.src = "images/navi/vera_n.gif";
veran2 = new Image();
veran2.src = "images/navi/vera_a.gif";

kontakt1 = new Image();
kontakt1.src = "images/navi/kontakt_n.gif";
kontakt2 = new Image();
kontakt2.src = "images/navi/kontakt_a.gif";

wuu1 = new Image();
wuu1.src = "images/navi/wuu_n.gif";
wuu2 = new Image();
wuu2.src = "images/navi/wuu_a.gif";

impressum1 = new Image();
impressum1.src = "images/navi/impressum_n.gif";
impressum2 = new Image();
impressum2.src = "images/navi/impressum_a.gif";

forum1 = new Image();
forum1.src = "images/navi/forum_n.gif";
forum2 = new Image();
forum2.src = "images/navi/forum_a.gif";


var index, button;

function wechsel(index, button)
{
 window.document.images[index].src=button.src;
 }