at least he got the job done

Yeah you are right, I forgot why I wrote that statement but it should be totally fine without it. I guess I wanted to do some validation on the parameters.

I second that. Nice one, tdj

see above (don't forget the spoiler flag ;) ).

try it on arrays of millions of different elements, you'll see.

the first loop does that (in a very inefficient manner x) )

The error must be due to unwanted spaces.