Get all opened IE page from client

[Franck]

Hi,
Got my page which opens another website default page in a popup.
(windows.open(""))
All I'd like to do is to fill the authentication form from the popup
page.

But I can't find a way to retrieve the correct page.
Is it possible to list all opened IE page from client and find the one
I'm lookin for ?

Thks for help.