<script>
<!-- ##### //-->
x01 = new Image();
x01.src = "images/buttons/impressum.gif";
y01 = new Image();
y01.src = "images/buttons/impressum_o.gif";
z01 = new Image();
z01.src = "images/buttons/impressum_d.gif";
x02 = new Image();
x02.src = "images/buttons/button_radio_02.gif";
y02 = new Image();
y02.src = "images/buttons/button_radio_02-o.gif";
x03 = new Image();
x03.src = "images/buttons/button_galerie_03.gif";
y03 = new Image();
y03.src = "images/buttons/button_galerie_03-o.gif";
x04 = new Image();
x04.src = "images/buttons/button_ct_04.gif";
y04 = new Image();
y04.src = "images/buttons/button_ct_04-o.gif";
x05 = new Image();
x05.src = "images/buttons/button_setup_05.gif";
y05 = new Image();
y05.src = "images/buttons/button_setup_05-o.gif";
x06 = new Image();
x06.src = "images/buttons/button_globally_03.jpg";
y06 = new Image();
y06.src = "images/buttons/button_globally_03-o.jpg";
<!-- ##### -->
function wechsel(Bildnr,Bildobjekt) {
Bildnr.src = Bildobjekt.src;
window.status = "";
}
<!-- ##### -->
</script>
<td align="center"><a href="impressum.php" onmouseover="wechsel(impressum,y01);" onmouseout="wechsel(impressum,x01);" onmousedown="wechsel(impressum,z01);" target="main"><img name="impressum" border="0" src="images/buttons/impressum.gif" width="117" height="15"></td>