Index: openacs-4/packages/categories/www/cadmin/tree-copy-view.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/categories/www/cadmin/tree-copy-view.tcl,v
diff -u -N -r1.4.2.3 -r1.4.2.4
--- openacs-4/packages/categories/www/cadmin/tree-copy-view.tcl	29 Jul 2014 11:14:18 -0000	1.4.2.3
+++ openacs-4/packages/categories/www/cadmin/tree-copy-view.tcl	5 Aug 2014 13:23:46 -0000	1.4.2.4
@@ -5,8 +5,8 @@
     @author Timo Hentschel (timo@timohentschel.de)
     @cvs-id $Id:
 } {
-    source_tree_id:integer
-    target_tree_id:integer
+    source_tree_id:naturalnum,notnull
+    target_tree_id:naturalnum,notnull
     {locale ""}
     object_id:naturalnum,optional
     ctx_id:naturalnum,optional