redirecting to previous page

[eluser]bigtimslim[/eluser]
How do you all go about redirecting to a previous page in CI?

My situation: I have a message board like system with links to private message posters. When clicked, the private message page loads and they submit it... now I want to send the user back to the board page he came from.

Would you guys just use HTTP_REFERER? is there a better way to do this in CI?


edit: sorry, I should have posted this in Code and Application Development