discover card validation regex incorrect

[langel-tc]

mootools-more-1.4.0.1.js
@@ -4965,7 +4965,7 @@

    Form.Validator.addAllThese([
            if (ccNum.test(/^4[0-9]{12}([0-9]{3})?$/)) valid_type = 'Visa';
            else if (ccNum.test(/^5[1-5]([0-9]{14})$/)) valid_type = 'Master Card';
            else if (ccNum.test(/^3[47][0-9]{13}$/)) valid_type = 'American Express';
-           else if (ccNum.test(/^6011[0-9]{12}$/)) valid_type = 'Discover';
+           else if (ccNum.test(/^6(?:011|5[0-9]{2})[0-9]{12}$/)) valid_type = 'Discover';

            if (valid_type){
                var sum = 0;

[fakedarren]

@anutron?