Index: openacs-4/packages/dotlrn-homework/www/folder-contents.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/dotlrn-homework/www/folder-contents.tcl,v
diff -u -N -r1.4.12.1 -r1.4.12.2
--- openacs-4/packages/dotlrn-homework/www/folder-contents.tcl	18 Aug 2014 21:53:43 -0000	1.4.12.1
+++ openacs-4/packages/dotlrn-homework/www/folder-contents.tcl	18 Aug 2014 21:58:08 -0000	1.4.12.2
@@ -5,7 +5,7 @@
     @author Don Baccus (dhogaza@pacifier.com)
 
 } {
-    folder_id:integer,notnull
+    folder_id:naturalnum,notnull
     {min_level:integer ""}
     {max_level:integer ""}
 } -validate {