Configure idle timeout via PAM?

[Shawn Kennedy]

Hello,

I want to be able to customize the TMOUT variable 
on a per-user basis, but at the same time get that 
value via pam_radius (the idle_session value). 
I know that TMOUT can be globally set in /etc/profile
(and of course made readonly), but is there a way to 
take the value sent down from RADIUS and update that
variable on a per user basis?

Thanks!

Shawn