From 67ecaf31f7125c9d24d3c52dded063ad2f5a788f Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@helsinki.at>
Date: Wed, 23 Mar 2016 21:54:50 +0100
Subject: fix accidentially removed function


diff --git a/www/js/clock.js b/www/js/clock.js
index 59f53de..a2b0628 100644
--- a/www/js/clock.js
+++ b/www/js/clock.js
@@ -43,6 +43,10 @@ function Clock() {
     this.draw_callbacks.fireWith(window, [date_str, time_str, get_rd_week(rdtime_ms)]);
   }
 
+  this.addCallback = function(cb) {
+    this.draw_callbacks.add(cb);
+  }
+
   this.ntp_update = function(event) {
     var t4 = (+new Date());
 
-- 
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