From f49eaf39ce20bf327004320b00d6a11f1c2136cd Mon Sep 17 00:00:00 2001
From: Ralf Becker <ralfbecker@outdoor-training.de>
Date: Wed, 8 Sep 2010 07:45:38 +0000
Subject: [PATCH] fixed in some update situations called unset_datetime on
 egw_minimal object

---
 phpgwapi/inc/class.preferences.inc.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/phpgwapi/inc/class.preferences.inc.php b/phpgwapi/inc/class.preferences.inc.php
index 020040c368..f33a026c44 100644
--- a/phpgwapi/inc/class.preferences.inc.php
+++ b/phpgwapi/inc/class.preferences.inc.php
@@ -405,7 +405,7 @@ class preferences
 			//echo "<p>".__METHOD__."() tz=$prefs[tz] --> tz_offset={$GLOBALS['egw_info']['user']['preferences']['common']['tz_offset']}</p>\n";
 
 			// ToDo: get rid of that
-			if (isset($GLOBALS['egw']) && is_object($GLOBALS['egw']))
+			if (isset($GLOBALS['egw']) && is_a($GLOBALS['egw'],'egw'))
 			{
 				$GLOBALS['egw']->unset_datetime();	// to force an update
 			}