How to tell which generation surf I have.

[night trunker]

Hi all, I'm new here. Was wondering how I can tell what generation 1,2,3 or 4 my hilux is. This would help others (and me) identify any configurations unique to the gen number when asking questions. Would post a photo, but asks for gen number.
Cheers all.

[Dixie.t]

http://en.wikipedia.org/wiki/Toyota_4Runner
http://en.wikipedia.org/wiki/Toyota_Hilux_Surf