Index: openacs-4/packages/calendar/www/cal-item-delete-all-occurrences.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/calendar/www/cal-item-delete-all-occurrences.tcl,v
diff -u -r1.4 -r1.5
--- openacs-4/packages/calendar/www/cal-item-delete-all-occurrences.tcl	9 Jan 2004 22:55:52 -0000	1.4
+++ openacs-4/packages/calendar/www/cal-item-delete-all-occurrences.tcl	27 Oct 2014 16:41:08 -0000	1.5
@@ -5,7 +5,7 @@
     @author Ben Adida (ben@openforce.net)
     @creation-date April 25, 2002
 } {
-    recurrence_id
+    recurrence_id:naturalnum,notnull
     {return_url "./"}
 }