Index: trunk/kernel/include/itemdb.php
===================================================================
diff -u -N -r2082 -r2882
--- trunk/kernel/include/itemdb.php	(.../itemdb.php)	(revision 2082)
+++ trunk/kernel/include/itemdb.php	(.../itemdb.php)	(revision 2882)
@@ -391,6 +391,7 @@
   function DetectChanges($name, $value)
   {  	
   	global $objSession;
+  	if( !is_object($objSession) ) return false;
   	
   	//echo "<b>class: ".get_class($this)."</b><br>";
 	if ($this->Data[$name] != $value && $value != '') {