50/50 php traffic filter

[calmlikeabomb]

Hey, do you want this script to operate on a per visitor basis?

Example, it rotates 50/50 between the two URLs on each individuals click(s).

OR

on a global level where each click made by ALL visitors is stored and recorded by the system and the 50/50 chance is based on all clicks being made throughout the system..

Thanks,
Levi