Index: openacs-4/packages/chat/www/room-exit.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/chat/www/room-exit.tcl,v
diff -u -N -r1.5 -r1.5.6.1
--- openacs-4/packages/chat/www/room-exit.tcl	19 Nov 2007 01:14:16 -0000	1.5
+++ openacs-4/packages/chat/www/room-exit.tcl	20 Jun 2016 08:40:23 -0000	1.5.6.1
@@ -6,15 +6,15 @@
     @creation-date November 25, 2000
     @cvs-id $Id$
 } {
-    room_id:integer,notnull
+    room_id:naturalnum,notnull
 }
 
 set user_id [ad_conn user_id]
 set read_p [permission::permission_p -object_id $room_id -privilege "chat_read"]
 set write_p [permission::permission_p -object_id $room_id -privilege "chat_write"]
 set ban_p [permission::permission_p -object_id $room_id -privilege "chat_ban"]
 
-if { ($read_p == "0" && $write_p == "0") || ($ban_p == "1") } {
+if { ($read_p == 0 && $write_p == 0) || ($ban_p == 1) } {
     #Display unauthorize privilege page.
     ad_returnredirect unauthorized
     ad_script_abort