PawelDecowski/jQuery-CreditCardValidator — pull request #1 by jamesallardice (2012-03-14 10:38:45+00:00)
Title: JCB card number lengths are incorrectly reported invalid

As the title states, JCB card number lengths are always reported to be invalid, even when the length is correct (16). This is caused by calling `Array.prototype.indexOf` on a number, rather than an array.