[DustyPorViva]

As long as you had the 'remember me' checked when you signed in, it won't log you out unless you clear your cookies, or try to log in from a different computer.

As long as you don't have to literally log in, by typing in your account and password and typing log in, you should still be able to post.

Don't clear your cookies, and you'll be fine. Make sure your browser isn't set to clear them upon closing, and the only way you'll be logged out is if you clear your cookies yourself, or log out yourself.