From e94a8135871b1e6d00dd6b58af0bbfee9b5ea789 Mon Sep 17 00:00:00 2001
From: Simon Grim <scary@tasty.sexy>
Date: Sat, 9 Jan 2016 00:03:11 +0500
Subject: [PATCH] add check if cbFunc is function to focusModalWithElement()

---
 js/interface_common.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/js/interface_common.js b/js/interface_common.js
index 197fee9..45ba036 100644
--- a/js/interface_common.js
+++ b/js/interface_common.js
@@ -148,7 +148,8 @@ function resumeModal(event) {
 
 function focusModalWithElement(elem, cbFunc, cbArg) {
     if (elem.jquery ? elem.is('html *') : $(elem).is('html *')) {
-        cbFunc(cbArg);
+        if (typeof cbFunc === 'function')
+            cbFunc(cbArg);
         return true;
     }