I hope this is the right place to post this...
Firstly Id like to say thanks for such a fantastically useful mod.
I have recently set it up on my sites forum and it worked without any pains whatsoever.

However, Id like to be able to allow my users to login also using a javascript/gwt interface, which makes up most of the sites functionality. (the forum is really supplementary, but handles the login for everything).
I have managed to emulate the login submission form using gwt, and it works to log people in...provided they were already logged in with their OpenID host.
If they wernt logged in already normally the mod (openid_login.php) would redirect them. But as Id like them to stay on the same page, I need to think another way to do this. If I could just load the redirect/login page into an iFrame I think I could get it to work neatly. Only I'm not sure how to integrate this with your code.
I assume Id need to make a copy of "openid_login.php" such as "openid_login_forjavascript.php" and point the javascript based form to that. Then make a few adjustments for it to return a url for the login rather then redirect the page? (or possibly echo back the whole page contents?).
I'm reasonably good with php, so just a few pointers should help me.
Naturally I want to be as non-destructive as possible and not interfere with the normal functionality of the mod.
Cheers,