peits: Link von iframe zu iframe

Hy leute ich habe ein Problem ich möchte einen Link von aus einem Iframe Heraus zu einem anderen iframe machen !

Aber es funktioniert nicht!!!

Die Seite ist etwas kompliezierter deshalb muss man sich im quelltext erst zurechtfinden!!!

Quelltext :

<html><head>
<title></title>

<script>
<!--
var old;
var memold;

if(document.layers)
{
        window.captureEvents(Event.MOUSEDOWN);
        window.onmousedown=do_out;
} else
{
        document.onmousedown=do_out;
}

/*
if(document.layers)
{
        window.captureEvents(Event.MOUSEUP);
        window.onmouseup=do_out;
} else
{
        document.onmouseup=do_out;
}
*/

function show_layer(x)
{
        if(document.layers)
                document.layers[x].visibility="show";
        else
                document.all[x].style.visibility="visible";
}

function hide_layer(x)
{
        if(document.layers)
                document.layers[x].visibility="hide";
        else
                document.all[x].style.visibility="hidden";
}

function do_menu(x)
{
        if(!old)
                old=memold;

if(old!=x)
        {
                show_layer(x);
                old=x;
        } else
                old="";
}

function do_check(x)
{
        if(old && old!=x)
        {
                hide_layer(old);
                show_layer(x);
                old=x;
        }
}

function do_out()
{
        if(old)
                hide_layer(old);

memold=old;
        old="";
}

// -->
</script>

<style>

.menu
{
        position: absolute;
        top:0;
        z-index: 2;
}

.submenu
{
        position: absolute;
        top: 22;
        z-index: 0;
        visibility: hide;
        visibility: hidden;
}

</style>

</head>

<body background="b1.jpg" bgcolor = #000000 text=#000000 link=#000000 vlink=#000000 alink=#000000>

<a href="uleb.htm" ><i><u><b>test</b></u></i></a>
<div id="m1" class="menu" style="left: 0 ;top:0 ; z-index: 2 ">
<table bgcolor=#000000 cellspacing=0 cellpadding=2 border=0 width=100>
<tr><td><a href="javascript:do_menu('m1x')" onmouseover="do_check('m1x')"><img src="a.gif" alt="" height="40" width="120" border="0"></a>
</table>
<br>
</div>

<div id="m1x" class="submenu" style="left: 125; top:0 ;  z-index: 0;">
<table bgcolor=#FFFFFF cellspacing=0 cellpadding=2 border=0 width=100>
<tr><td>
<a><font size="+1">Downloads</font></a><br>
<a href="Web.htm" target="mainframe" >Webseite</a><br><br>
<a href="Downloads.htm" target="mainframe" >Delphi<br>Games</a><br><br>
<a href="Need.htm" target="mainframe" >sourcecodes</a><br><br>
</table>
<br>
</div>

<div id="m2" class="menu" style="left:0; top:40 ;">
<table bgcolor=#000000 cellspacing=0 cellpadding=2 border=0 width=100>
<tr><td><a href=