Index: branches/RC/core/kernel/db/db_event_handler.php
===================================================================
diff -u -N -r10961 -r10962
--- branches/RC/core/kernel/db/db_event_handler.php	(.../db_event_handler.php)	(revision 10961)
+++ branches/RC/core/kernel/db/db_event_handler.php	(.../db_event_handler.php)	(revision 10962)
@@ -1611,11 +1611,11 @@
 							break;
 
 						case 'OnMassMoveUp':
-							$object->SetDBField('Priority', $object->GetDBField($order_field) + 1);
+							$object->SetDBField($order_field, $object->GetDBField($order_field) + 1);
 							break;
 
 						case 'OnMassMoveDown':
-							$object->SetDBField('Priority', $object->GetDBField($order_field) - 1);
+							$object->SetDBField($order_field, $object->GetDBField($order_field) - 1);
 							break;
 					}