For a production ready alternative, take a look at http://creditcardjs.com http://creditcardjs.com, which was posted on HN a while back. The web site points out

For a production ready alternative, take a look at http://creditcardjs.com http://creditcardjs.com, which was posted on HN a while back. The web site points out common mistakes when implementing credit card forms and delves into the motivation behind every design decision.