From 8bcf95404d905af8b86756dbf8ed673656768c4e Mon Sep 17 00:00:00 2001
From: MinRK <benjaminrk@gmail.com>
Date: Fri, 11 Oct 2013 09:03:33 +0200
Subject: [PATCH] add unregister_target to CommManagers

---
 IPython/html/static/services/kernels/js/comm.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/IPython/html/static/services/kernels/js/comm.js b/IPython/html/static/services/kernels/js/comm.js
index 3351e42c4..91760aca1 100644
--- a/IPython/html/static/services/kernels/js/comm.js
+++ b/IPython/html/static/services/kernels/js/comm.js
@@ -45,6 +45,11 @@ var IPython = (function (IPython) {
         this.targets[target_name] = f;
     };
     
+    CommManager.prototype.unregister_target = function (target_name, f) {
+        // Unregister a target function for a given target name
+        delete this.targets[target_name];
+    };
+
     CommManager.prototype.register_comm = function (comm) {
         // Register a comm in the mapping
         this.comms[comm.comm_id] = comm;