added CC validation and payment documentation

README.md

@@ -444,8 +444,16 @@ You don't have to do anything for the payment, Domino's Pizza will handle all tr
 
     var pizzapi=require('dominos');
 
+    var cardNumber='4100123422343234';
+
     var cardInfo = new order.PaymentObject();
     cardInfo.Amount = order.Amounts.Customer;
+    cardInfo.Number = cardNumber;
+    cardInfo.CardType = order.validateCC(cardNumber);
+    cardInfo.Expiration = '0115';//  01/15 just the numbers "01/15".replace(/\D/g,'');
+    cardInfo.SecurityCode = '777';
+    cardInfo.PostalCode = '90210'; // Billing Zipcode
+
     order.Payments.push(cardInfo);
 
     order.place(

src/Order.js

@@ -179,6 +179,42 @@ Order.prototype.mergeResponse = function(callback,response){
     }
 }
 
+Order.prototype.validateCC=function(number){
+        var re = {
+            visa        : /^4[0-9]{12}(?:[0-9]{3})?$/,
+            mastercard  : /^5[1-5][0-9]{14}$/,
+            amex        : /^3[47][0-9]{13}$/,
+            diners      : /^3(?:0[0-5]|[68][0-9])[0-9]{11}$/,
+            discover    : /^6(?:011|5[0-9]{2})[0-9]{12}$/,
+            jcb         : /^(?:2131|1800|35\d{3})\d{11}$/,
+            enroute     : /^(?:2014|2149)\d{11}$/
+        };
+
+        if (re.visa.test(number))
+            return 'VISA';
+
+        if (re.mastercard.test(number))
+            return 'MASTERCARD';
+
+        if (re.amex.test(number))
+            return 'AMEX';
+
+        if (re.diners.test(number))
+            return 'DINERS';
+
+        if (re.discover.test(number))
+            return 'DISCOVER';
+
+        if (re.jcb.test(number))
+            return 'JCB';
+
+        if (re.enroute.test(number))
+            return 'JCB';
+
+        return "";
+    }
+}
+
 Order.prototype.PaymentObject=function(){
     Object.defineProperties(
         this,