only validate credit card an cvv if there is data in them

services/web/app/views/subscriptions/new.jade

@@ -69,8 +69,8 @@ block content
 											.row
 												.col-md-12
 													.form-group
-														div(ng-hide="validation.correctCvv") #{translate("invalid")} CVV
-														div(ng-hide="validation.correctCardNumber") #{translate("invalid")} #{translate("credit_card_number")}
+														div.alert.alert-warning.small(ng-hide="validation.correctCvv") #{translate("invalid")} CVV
+														div.alert.alert-warning.small(ng-hide="validation.correctCardNumber") #{translate("invalid")} #{translate("credit_card_number")}
 											.row
 												.col-md-6
 													.form-group(ng-class="validation.correctCardNumber ? '' : 'has-error' ")
@@ -80,7 +80,7 @@ block content
 														input.form-control(ng-model='data.cvv', ng-blur="validateCvv()", placeholder="CVV")
 											.row
 												.col-md-12
-													div(ng-hide="validation.correctExpiry") #{translate("invalid")} #{translate("expiry")}
+													div.alert.alert-warning.small(ng-hide="validation.correctExpiry") #{translate("invalid")} #{translate("expiry")}
 												.col-md-2
 													.form-group(ng-class="validation.correctExpiry ? '' : 'has-error' ")
 														select(data-recurly='month', ng-change="validateExpiry()", ng-model='data.month')

services/web/public/coffee/main/new-subscription.coffee

@@ -15,10 +15,10 @@ define [
 		$scope.paymentMethod = "credit_card"
 
 		$scope.data =
-			number: ""
+			number: undefined
 			month: undefined
 			year: undefined
-			cvv: ""
+			cvv: undefined
 			first_name: ""
 			last_name: ""
 			postal_code: ""
@@ -57,14 +57,16 @@ define [
 			pricing.currency(newCurrency).done()
 
 		$scope.validateCardNumber = ->
-			$scope.validation.correctCardNumber = recurly.validate.cardNumber($scope.data.number)
+			if $scope.data.number?
+				$scope.validation.correctCardNumber = recurly.validate.cardNumber($scope.data.number)
 
 		$scope.validateExpiry = ->
 			if $scope.data.month? and $scope.data.year?
 				$scope.validation.correctExpiry = recurly.validate.expiry($scope.data.month, $scope.data.year)
 
 		$scope.validateCvv = ->
-			$scope.validation.correctCvv = recurly.validate.cvv($scope.data.cvv)
+			if $scope.data.cvv?
+				$scope.validation.correctCvv = recurly.validate.cvv($scope.data.cvv)
 
 		$scope.changePaymentMethod = (paymentMethod)->
 			if paymentMethod == "paypal"