[jQuery] How do I remove/delete a function?

[jQuery] How do I remove/delete a function?


Maybe I'm missing something, but how would I remove a jQuery function
after it's no longer in use? I'm using an ajax driven site, so the
page never is reloaded, so do all the jQuery functions I define just
stay there? Does this cause memory issues? Is there a way to remove it
after it's not longer in use?
Thanks!