Index: openacs-4/packages/acs-tcl/tcl/whos-online-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-tcl/tcl/whos-online-procs.tcl,v
diff -u -r1.3 -r1.4
--- openacs-4/packages/acs-tcl/tcl/whos-online-procs.tcl	8 Jan 2004 09:53:48 -0000	1.3
+++ openacs-4/packages/acs-tcl/tcl/whos-online-procs.tcl	10 Jan 2007 21:22:12 -0000	1.4
@@ -34,7 +34,7 @@
     array set last_hit [nsv_array get last_hit]
     set onliners_out [list]
     set interval 1
-    set oldtime [expr [ns_time] - [interval]]
+    set oldtime [expr {[ns_time] - [interval]}]
 
     for { set search [array startsearch last_hit] } { [array anymore last_hit $search] } {} {
         set user [array nextelement last_hit $search]
@@ -91,7 +91,7 @@
     @author Peter Marklund
 } {
     if { [nsv_exists last_hit $user_id] } {
-        return [expr [ns_time] - [nsv_get last_hit $user_id]]
+        return [expr {[ns_time] - [nsv_get last_hit $user_id]}]
     } else {
         return {}
     }
@@ -104,7 +104,7 @@
     @author Peter Marklund
 } {
     if { [nsv_exists last_hit $user_id] } {
-        return [expr [ns_time] - [nsv_get first_hit $user_id]]
+        return [expr {[ns_time] - [nsv_get first_hit $user_id]}]
     } else {
         return {}
     }
@@ -136,7 +136,7 @@
 } {
     array set last_hit [nsv_array get last_hit]
     set onliners [list]
-    set oldtime [expr [ns_time] - [interval]]
+    set oldtime [expr {[ns_time] - [interval]}]
 
     for { set search [array startsearch last_hit] } { [array anymore last_hit $search] } {} {
         set user_id [array nextelement last_hit $search]