added option to set available card types

README.md

@@ -130,6 +130,20 @@ And then:
 
 Basically the directive sends the credit card details directly to stripe, which then returns a token that you can use to charge the card, subscribe a user or to do other things. This ensures that the card details themselves never hit your backend and thus you have to worry a little bit less.
 
+### Configuration
+
+To configure the available cart types (if your payment gateway doesn't support all) you can do so with the following where `myApp' is your angular module. 
+
+The default value is ['amex', 'dinersclub', 'discover', 'jcb', 'maestro', 'mastercard', 'unionpay', 'visa']
+
+	myApp.run(['angularPaymentsOptions', 
+		function(angularPaymentsOptions) {
+			angularPaymentsOptions.enabledCardTypes = ['visa', 'mastercard', 'amex'];
+		}
+	]);
+
+
+
 
 ## Example
 

lib/angular-payments.js

@@ -1,4 +1,10 @@
-angular.module('angularPayments', []);angular.module('angularPayments')
+angular.module('angularPayments', [])
+
+// Cart types accepted
+.value('angularPaymentsOptions', {
+  enabledCardTypes: ['amex', 'dinersclub', 'discover', 'jcb', 'maestro', 'mastercard', 'unionpay', 'visa']
+})
+;angular.module('angularPayments')
 
 .factory('Common', [function(){
 
@@ -33,12 +39,12 @@ angular.module('angularPayments', []);angular.module('angularPayments')
 
 }]);angular.module('angularPayments')
 
-.factory('Cards', [function(){
+.factory('Cards', ['angularPaymentsOptions', '$filter', function(angularPaymentsOptions, $filter){
 
   var defaultFormat = /(\d{1,4})/g;
   var defaultInputFormat =  /(?:^|\s)(\d{4})$/;
 
-        var cards = [
+  var cardDefinitions = [
     {
       type: 'maestro',
       pattern: /^(5018|5020|5038|6304|6759|676[1-3])/,
@@ -114,6 +120,9 @@ angular.module('angularPayments', []);angular.module('angularPayments')
     }
   ];
 
+  var cards = $filter('filter')(cardDefinitions, function(card) {
+    return angularPaymentsOptions.enabledCardTypes.indexOf(card.type) > -1;
+  });
 
   var _fromNumber = function(num){
       var card, i, len;