Index: openacs-4/packages/calendar/www/admin/calendar-edit.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/calendar/www/admin/calendar-edit.tcl,v
diff -u -r1.4 -r1.4.16.1
--- openacs-4/packages/calendar/www/admin/calendar-edit.tcl	9 Jan 2004 21:54:24 -0000	1.4
+++ openacs-4/packages/calendar/www/admin/calendar-edit.tcl	29 Jul 2014 11:14:17 -0000	1.4.16.1
@@ -5,7 +5,7 @@
     @creation-date Dec 14, 2000
     @cvs-id $Id$
 } {
-    {calendar_id:integer,optional}
+    {calendar_id:naturalnum,optional}
 }
 
 set page_title "Add/Edit Calendar"