Communicating between an overlayed iFrame and the underlying page (LAMP)

Posted by stef on Stack Overflow See other posts from Stack Overflow or by stef
Published on 2010-05-16T01:27:53Z Indexed on 2010/05/16 1:40 UTC
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php

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iframe

I have a small form is to be filled in.

If the user is logged in, the form is submitted as normal. If the user is not logged in, I show an overlayer with an iframe'd page that contains a login box where he enters his credentials. If the credentials are correct I can "break out" of the frame to "return" to the main page, but how can I update this main page for example to show "you are now logged in" and to change the JS / PHP login that determines whether or not the form can be submitted normally and not be intercepted again by the overlayer prompt?

Afaik, these two separate pages are not aware of each other so I'm struggling to find a solution to this problem.

This is in a LAMP / jQuery / CodeIgniter environment.

EDIT: Could CodeIgniter's XML RPC class be useful for this?

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