StandardPic = new Image(); 
StandardPic.src = "pics/om-0.gif";
MausPic1 = new Image(); 
MausPic1.src = "pics/om-1.gif";
MausPic2 = new Image(); 
MausPic2.src = "pics/om-2.gif";
MausPic3 = new Image(); 
MausPic3.src = "pics/om-3.gif";
MausPic4 = new Image(); 
MausPic4.src = "pics/om-4.gif";

function ChangePic(Nr,Pic)
    {
    window.document.images[Nr].src = Pic.src;
    }