Ng = new Image(); 
Ng.src = "gif/fx-g.gif";
Hg = new Image(); 
Hg.src = "gif/fx-g2.gif";

function LiteOn(Bild)
{
document.images[Bild].src = Hg.src 
}
function LiteOff(Bild)
{
document.images[Bild].src = Ng.src 
}