Filter Question

[Håkan Hagenrud <uhp hagenrud nu>]

I don't know if it can be done, I would like to set up a filter that  
removes mails in a mailbox that is older than two weeks. I'm thinking  
of using something like "today" as first date and "today+2weeks" in  
last date and let the filter remove mails that are older than that.

Can it be done?
I have searched the net with no luck. Thanks for your time.
/Håkan