Having a module change positions...

[anniex0r]

I'm sure this is something super easy and simple, but I have no idea how to do it...

I want my login module to move to a different module location once a user has logged in... Can anyone tell me how to do this?

For example, if you're not logged in, the login module would be on the left side of the page, and if you are, it'll be at the bottom, out of the way.