and while the original version was easily understandable ven for the layman the final version needs an added comment so you know why it works. As if JS wasn't easily enough obfuscated without even trying...
on another note: while the original version got three (most likely consecutive) numbers the other versions just get one. So the "randomness" of the resulting color (and additionally the "randomness" of all generated colors if more than one is needed) changes, depending on implementation of the PRNG. Of course, in a perfect RNG this would not matter, but... :-)
