Index: branches/RC/core/kernel/db/db_event_handler.php
===================================================================
diff -u -N -r10868 -r10961
--- branches/RC/core/kernel/db/db_event_handler.php	(.../db_event_handler.php)	(revision 10868)
+++ branches/RC/core/kernel/db/db_event_handler.php	(.../db_event_handler.php)	(revision 10961)
@@ -1592,7 +1592,12 @@
 
 			if ($ids) {
 				$status_field = array_shift( $this->Application->getUnitOption($event->Prefix,'StatusField') );
+				$order_field = $this->Application->getUnitOption($event->Prefix,'OrderField');
 
+				if (!$order_field) {
+					$order_field = 'Priority';
+				}
+
 				foreach ($ids as $id) {
 					$object->Load($id);
 
@@ -1606,11 +1611,11 @@
 							break;
 
 						case 'OnMassMoveUp':
-							$object->SetDBField('Priority', $object->GetDBField('Priority') + 1);
+							$object->SetDBField('Priority', $object->GetDBField($order_field) + 1);
 							break;
 
 						case 'OnMassMoveDown':
-							$object->SetDBField('Priority', $object->GetDBField('Priority') - 1);
+							$object->SetDBField('Priority', $object->GetDBField($order_field) - 1);
 							break;
 					}