You'll want to use Window.Opener to reference the original window.

Here's an example:
window.opener.document.reload(true);

Here's more info:
[url]http://www.mozilla.org/docs/dom/domref/dom_window_ref77.html[/url]

--
I hope this helps,
Steve C. Orr, MCSD
[url]http://Steve.Orr.net[/url]


"David" <centraldevelopment@nospam.com> wrote in message
news:09ed01c35da3$abc12480$a301280a@phx.gbl...
> Hello
>
> I have a datalist containing customer account details
> including the customer's address all the other customer
> details can be maintained directly on this page but
> because an address can belong to multiple customer
> accounts. I maintain the address details through
> a 'popup' window. I've got it all working to this point
> its just that on update I need to refresh the data on the
> main page and have not found a way to this yet.
>
> Is it possible to refresh the data on the principal page
> on update of the popup
>
> Can anyone suggest a way to do this?
>
> Thanks
>
> David