Hier der ganze Code, da ich mir nicht sicher bin was Du davon brauchst.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Unbenanntes Dokument</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<script language="JavaScript" type="text/JavaScript">
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function MM_reloadPage(init) { //reloads the window if Nav4 resized
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document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);
function MM_findObj(n, d) { //v4.01
var p,i,x; if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
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if(!x && d.getElementById) x=d.getElementById(n); return x;
}
function MM_showHideLayers() { //v6.0
var i,p,v,obj,args=MM_showHideLayers.arguments;
for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
if (obj.style) { obj=obj.style; v=(v=='show')?'visible'

v=='hide')?'hidden':v; }
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}
//-->
</script>
</head>
<body>
<div id="navi" style="position:absolute; left:94px; top:103px; width:118px; height:12px; z-index:1">
<a href="#" onMouseOver="MM_showHideLayers('main','','show','bio','','hide')"
onMouseOut="MM_showHideLayers('main','','show','bio','','hide')">Main</a>____<a href="#"
onMouseOver="MM_showHideLayers('main','','hide','bio','','show')">Bio</a>____</div>
<div id="main" style="position:absolute; left:93px; top:122px; width:64px; height:84px; z-index:2; visibility: hidden;">
<p>heimat</p>
<p>seite</p>
</div>
<div id="bio" style="position:absolute; left:157px; top:122; width:55px; height:84; z-index:3; visibility: hidden;">
<p>lebenslauf</p>
<p>mehr</p>
</div>
</body>
</html>