diff --git a/client/scripts/network.js b/client/scripts/network.js
index eb59901..7f50e67 100644
--- a/client/scripts/network.js
+++ b/client/scripts/network.js
@@ -512,6 +512,10 @@ class Events {
     static on(type, callback) {
         return window.addEventListener(type, callback, false);
     }
+
+    static off(type, callback) {
+        return window.removeEventListener(type, callback, false);
+    }
 }