Auto login script to prevent pruning?

or you can give me passwords to your most valuable torrent sites and I will login for you :lol:

Bookmark them all in a folder and click it with the mouse wheel to open them all, thus signing into all your trackers at once. You don't need a fancy program to do something so simple :/

That works, but what if his session expires on a tracker? :P He seems to be on a lot of them and it's all too possible he wouldn't notice being logged out.
I know a macro could log one into sites... not sure if there's a recorder that will check if someone is already logged in.