Topic: trying to reload iframe from other iframe (Page 1 of 1)

I'm trying to reload a page in an iframe (a content page) from a page in another iframe (hidden, that checks for updates). The parent for both of these iframes is the main window. I'm trying to do this with javascript. The following is the source code that loads into iframe fr1, which is trying to reload iframe fr2.

function updateWindow() {
window.frames[fr2].location = url;
} 
window.onload = updateWindow;

But this doesn't seem to be working. What am I doing wrong here?

If that code is loaded in the first frame, then window.frames is a reference to the first frame's frames (I assume it has none).
To get the frames of the main window, you will need to use parent.frames.
And if you had multiple levels of frames, you could get to the main by using top.frames.

Also, I'm assuming fr2 is a global variable defined in the top frame?
If so, then you will need to reference it as parent.fr2 or top.fr2.

This may help you.
http://www.oreillynet.com/pub/a/javascript/excerpt/jstdg_ch13/index.html?page=7#multwinfram

(Edited by Kyle the Feared on 03-04-2009 06:19)

Beside, I'm wondering what's the use case for frames & iframes these days beside sandboxing web widgets and ads. Since you already require JavaScript to be enabled, surely you XHR chunks of information and dynamically update parts of the of page. After all it's the 21st century and all.

Just give the frame / iframe a name and submit a form with target="frame name" it will work regardless to the frame level
(I won't ask why using frames...)