Fixed 'page expired' prevention (white screen/warnings after session timout).

diff --git a/includes/session.inc b/includes/session.inc
index 37591d3489e8bdbceffdb78b28eece26c6053966..f68dd38e8aed6bd99ec306d9c768d04597a613de 100644 (file)
--- a/includes/session.inc
+++ b/includes/session.inc
@@ -451,7 +451,7 @@ if (strstr($_SERVER['PHP_SELF'], 'logout.php') == false){
                        // Incorrect password
                                login_fail();
                        }
-                       elseif(!$_SESSION['timeout']['post'])
+                       elseif(isset($_SESSION['timeout']) && !$_SESSION['timeout']['post'])
                        {
                                // in case of GET request redirect to avoid confirmation dialog 
                                // after return from menu option