From 209c195d5b94de50ef5b727a1294b5130b7d46fa Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Sun, 15 Mar 2015 23:19:49 -0400
Subject: Epirts.card.validateExpiry(): Implement

---
diff --git a/epirts.js b/epirts.js
index c7d4712..1e03ef4 100644
--- a/epirts.js
+++ b/epirts.js
@@ -81,6 +81,22 @@ var Stripe = Epirts = (function() {
 		};
 
 		pub.validateExpiry = function(month, year) {
+			var today;
+
+			today = new Date();
+			month = parseInt(month, 10);
+			year = parseInt(year, 10);
+			if (isNaN(month) || isNaN(year)) {
+				return false;
+			} else if (month < 1 || month > 12) {
+				return false;
+			} else if (year < today.getFullYear()) {
+				return false;
+			} else if (year === today.getFullYear() &&
+					month <= today.getMonth()) {
+				return false;
+			}
+			return true;
 		};
 
 		pub.validateCVC = function(cvc) {
--
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