Automaticly returning to index after loggin out / don't make site black and white

[BJv1985]

I have 2 questions/requests. I hope it's possible to do both :

I would like to send users back to the forum index automaticly after they log out instead of sending them to a vBulletin Message page.

The other thing I want to do is disable the black and white function that happens during the popup option message when users click on log out, the reason I want to do that is because a background image on my layout has to reload to become black and white

Is there anyone who knows how to do this?