Only count children's unread if they exist.

git-svn-id: https://svn.roundcube.net/trunk@1702 208e9e7b-5314-0410-a742-e7e81cd9613c

1 files changed, 3 insertions, 3 deletions

diff --git a/roundcubemail/program/js/app.js b/roundcubemail/program/js/app.js
index 3db117f3b..c94db5ca3 100644
--- a/roundcubemail/program/js/app.js
+++ b/roundcubemail/program/js/app.js
@@ -3499,9 +3499,9 @@ function rcube_webmail()
       text_obj = item.getElementsByTagName('a')[0];
       reg = /\s+\([0-9]+\)$/i;
 
-      div = item.getElementsByTagName('div')[0];
-	  childcount = 0;
-      if (div.className.match(/collapsed/))
+      childcount = 0;
+      if ((div = item.getElementsByTagName('div')[0]) &&
+          div.className.match(/collapsed/))
         {
         // add children's counters
         children = item.getElementsByTagName('li');