Index: openacs-4/packages/acs-tcl/tcl/exception-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-tcl/tcl/exception-procs.tcl,v
diff -u -r1.2 -r1.3
--- openacs-4/packages/acs-tcl/tcl/exception-procs.tcl	14 Feb 2005 12:32:07 -0000	1.2
+++ openacs-4/packages/acs-tcl/tcl/exception-procs.tcl	10 Jan 2007 21:22:12 -0000	1.3
@@ -44,10 +44,10 @@
 	}
       }
 
-      if $matched {
-	upvar [lindex $args [expr $i + 1]] var
+      if {$matched} {
+	upvar [lindex $args [expr {$i + 1}]] var
 	set var $result
-	set errno [catch {uplevel [lindex $args [expr $i + 2]]} result]
+	set errno [catch {uplevel [lindex $args [expr {$i + 2}]]} result]
       }
     }