Problem with oncontextmenu and frames

[whizza]

My webpage consists of 3 frames.

Frame 2 contains radio buttons which when clicked call
a function that generates Frame 3 using writeln.

All 3 Frames have several <input type=submit> buttons to
which I have just added oncontextmenu as follows.

-- snip --
function helpwind(theURL) {
window.open(theURL,'helpwindow','toolbar=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=400,height=400,left=250,top=50')
}
-- snip --
<a href oncontextmenu=&quot;helpwind('/cgi-bin/fc/fc.exe?ico_hlp=HELPS/ICOGFPB3.HTM','',''); return false&quot; class='help'>
<input name='ico_gfp' value='First Page' type='submit' title='Load first page' class='input' onclick=&quot;javascript:Clear23();&quot;>
</a>
-- snip --

After right clicking the <input type=submit> buttons a new
browser window opens and shows a help page.

The problem:

All works fine until the right click has been used to view a help file.
After a help file has been shown any subsequent clicks on the Frame 2
radio buttons causes Internet Explorer 5/5.5/6 to crash.
Using view source on frame 3 reveals the frameset document.