From dd4b038bbf8825f32e63ef728729aedb54221545 Mon Sep 17 00:00:00 2001
From: Dongsheng Cai <unoter@gmail.com>
Date: Thu, 19 Nov 2009 03:27:53 +0000
Subject: [PATCH] "MDL-20886, fixed message popup window for guest user"

---
 lib/moodlelib.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/moodlelib.php b/lib/moodlelib.php
index d2a3fcd461c..aa62641bc26 100644
--- a/lib/moodlelib.php
+++ b/lib/moodlelib.php
@@ -8046,7 +8046,7 @@ function message_popup_window() {
     $popuplimit = 30;     // Minimum seconds between popups
 
     if (!defined('MESSAGE_WINDOW')) {
-        if (isset($USER->id) and !isguestuser()) {
+        if (!empty($USER->id) and !isguestuser()) {
             if (!isset($USER->message_lastpopup)) {
                 $USER->message_lastpopup = 0;
             }