mouseover bei imagemap

[Andi]

<img src="images\imagemap.jpg" width=786 height=406 border=0 usemap="#imagemap">
<map name="imagemap">
  <area shape="rect" coords="76,48,210,70" onMouseover="document.images[1].src='../images/index/ueber_uns_yellow.jpg';" onMouseout="document.images[1].src='../images/index/ueber_uns.jpg" href="ueber_uns.php4">
  <area shape="rect" coords="534,47,715,69" onMouseover="document.images[2].src='../images/index/weiter_yellow.jpg';" onMouseout="document.images[2].src='../images/index/weiter.jpg" href="ueber_uns.php4">
</map>

So hier mein Quelltext!