Casting out nines exercise (JavaScript) by Robin Snyder  ,  robin@RobinSnyder.com , source: JPROBS/exers-07 [NV/asp] [page formatted/updated on 2008/02/15 at 10:32:00 , loaded on 2012/05/21 at 12:25:17 ] versions:    screen-friendly    printer-friendly by Robin Snyder  ,  robin@RobinSnyder.com , source: JPROBS/exers-07 [NV/asp]