Best way to pull off a "success" message?

[eluser]Shpigford[/eluser]
I forgot to mention that I do a redirect() after the form is processed (to avoid somehow hitting refresh and resending the form.

So unless I'm mistaken, I can't really pass that. To my knowledge it'd need to be more of a setup with a unique session that is created on success and then cleared once it's displayed.

I could probably create a helper to do this but wasn't sure if something already existed.