if(top.frames.length > 0)
 top.location.href = self.location;

imgPunkt = new Image();
imgPunkt.src = "/pic/m-punkt.gif";
imgPixel = new Image();
imgPixel.src = "/pic/pixel.gif";


function hin(bildname)
{
  document.images[bildname].src = imgPunkt.src;
}

function weg(bildname)
{
  document.images[bildname].src = imgPixel.src;
}