Index: openacs-4/packages/acs-subsite/www/shared/ajax/chat.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-subsite/www/shared/ajax/Attic/chat.tcl,v
diff -u -r1.1.2.3 -r1.1.2.4
--- openacs-4/packages/acs-subsite/www/shared/ajax/chat.tcl	14 Jun 2019 09:26:11 -0000	1.1.2.3
+++ openacs-4/packages/acs-subsite/www/shared/ajax/chat.tcl	28 Oct 2020 15:39:19 -0000	1.1.2.4
@@ -14,7 +14,7 @@
   {mode ""}
 }
 
-if {[info commands ::xo::ChatClass] eq "" ||
+if {[namespace which ::xo::ChatClass] eq "" ||
     ![::xo::ChatClass is_chat_p $class]} {
   ns_returnnotfound