external HTML > Hidden Iframe > Div ???

Its the classic problem that Netscape solved years ago with its elegant
< layer src="file.html"> solution.

So cross-browser, is not the problem. I'll do a complete Netscape solution
instead, and offer seperate pages based on a bowser sniff.
The problem is @#$%^# Microsoft.

To get around Microsoft's mingyness I have to load an external file into a
hidden Iframe buffer but because Iframe's play merry hell with z-indexes
(I have pop-up menus using invisible divs) transfer the contents of the
Iframe into a main content div with a z-index of 1.

dynamically populating the Iframe with file.html is no problem.

but I am having weird problems with getting any content into my div

declarations
<iframe name="buffer" width="1" height="1">
<div id="content" onClick=goto("file.htm")></div>

now, from all I read, this should work:

function goto(target) {
frames['buffer'].location.href=target;
document.all.getElementByID['content"].innerHTML=document.frames["buffer"].document.all.innerHTML
}

But in MS6, the red bit isn't working. In fact even:

document.all.getElementByID["content"].innerHTML="Work, damn you, work!"
doesn't work either!! which seems pretty strange.

any helpful hints gratefully received!!

Corrent me if I'm wrong, but the DIV "content" isn't part of the current document (it's a totally separate frame, i.e. document), so you can't reference it using "document.". You must go higher up the DOM.

How odd, my nickname 'round here is stumpy too!

Thanks for responding but, 'fraid you are wrong.
I didn't need to go any further up the Dom at all.
No, the trick is you can't do the lot in one step.

I only realised it when I accidentally clicked twice
and THEN it worked! Thus the need for the second
function triggered by onLoad in the buffer iframe.

the solution is as follows:

<script>
function goto(target) {
frames['buffer'].location.href=target;
}
function loadcontent() {
content.innerHTML=parent.frames['buffer'].document.body.innerHTML;
}
</script>

... onMouseDown="goto('someURI') ...

<div id='content'> </div>

...and hidden at the bottom of the page...
<Iframe name="buffer" onLoad="loadcontent()" height="1" width="1">

works in MSIE 6 anyway!
Gosh, coding for Netscape is going to be relatively dull after all that!