From 64d0446f24411746424c4a9f004ace7238c2d3fe Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Sun, 15 Mar 2015 22:39:52 -0400
Subject: Epirts.card.cardType(): Implement

---
(limited to 'epirts.js')

diff --git a/epirts.js b/epirts.js
index ad3044f..c7d4712 100644
--- a/epirts.js
+++ b/epirts.js
@@ -94,6 +94,19 @@ var Stripe = Epirts = (function() {
 		};
 
 		pub.cardType = function(number) {
+			var p;
+			var i;
+
+			/* Approximate IIN prefixes */
+			p = {};
+			for (i = 40; i <= 49; ++i) p[i] = 'Visa';
+			for (i = 51; i <= 55; ++i) p[i] = 'MasterCard';
+			p[34] = p[37] = 'American Express';
+			p[35] = 'JCB';
+			p[60] = p[62] = p[64] = p[65] = 'Discover';
+			p[30] = p[36] = p[38] = p[39] = 'Diners Club';
+
+			return p[(number + '').slice(0, 2)] || 'Unknown';
 		};
 
 		return pub;
--
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