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var validateCreditCard = function(field, rules, i, options) { | |
var valid = false, | |
cardNumber = field.val().replace(/ +/g, "").replace(/-+/g, ""); | |
var numDigits = cardNumber.length; | |
if (numDigits >= 14 && numDigits <= 16 && parseInt(cardNumber) > 0) { | |
var pos = 1; | |
var luhn = ""; | |
for (var i = numDigits - 1; i >= 0; i--) { | |
var digit = parseInt(cardNumber.charAt(i)); |