adding emanating rays

to the PS experts on here:

i want to make a pic that has a human figure in the middle of the pic and the background will be like rays emanating from the middle of the figure and the rays are alternating colors. i don't know how to describe this. i hope someone understands.

anyway, is there an easy way to do this in PS CS?

the way i can think of doing this would involve a layer for each ray which is probably the long way to do this

a big TIA!

i found a tut on what i want exactly

opens new - http://www.good-tutorials.com/track/289