Index: trunk/kernel/constants.php
===================================================================
diff -u -r4287 -r4451
--- trunk/kernel/constants.php	(.../constants.php)	(revision 4287)
+++ trunk/kernel/constants.php	(.../constants.php)	(revision 4451)
@@ -1,14 +1,20 @@
 <?php
 
+	// kDBList filtering
 	define('HAVING_FILTER', 1);
 	define('WHERE_FILTER', 2);
 	define('AGGREGATE_FILTER', 3);
 	
 	define('FLT_TYPE_AND',	'AND');
 	define('FLT_TYPE_OR',	'OR');
 
+	// item statuses
 	safeDefine('STATUS_DISABLED', 0);
 	safeDefine('STATUS_ACTIVE', 1);
 	safeDefine('STATUS_PENDING', 2);
+	
+	// sections
+	safeDefine('stTREE', 1);
+	safeDefine('stTAB', 2);
 
 ?>
\ No newline at end of file