--- loncom/cgi/barcode.png	2003/02/03 18:03:52	1.11
+++ loncom/cgi/barcode.png	2005/04/07 06:56:21	1.12
@@ -3,7 +3,7 @@
 # The LearningOnline Network with CAPA
 # barcode.png - A CGI script that dynamically outputs a barcode.
 #
-# $Id: barcode.png,v 1.11 2003/02/03 18:03:52 harris41 Exp $
+# $Id: barcode.png,v 1.12 2005/04/07 06:56:21 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -27,9 +27,6 @@
 #
 # http://www.lon-capa.org/
 #
-# YEAR=2001
-# 8/15,9/28,12/11
-#
 ###
 
 # I'm using format=Code39.
@@ -43,12 +40,13 @@ use strict;
 use GD::Barcode::Code39;
 
 $|=1;   # Autoflush after each print/write
+my %env;
 foreach (split(/&/,$ENV{'QUERY_STRING'})) {
     my ($name, $value) = split(/=/,$_);
     $value =~ tr/+/ /;
     $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
     if ($name eq 'encode') {
-	$ENV{'form.'.$name}=$value;
+	$env{'form.'.$name}=$value;
     }
 }
 
@@ -58,10 +56,10 @@ Content-type: image/png
 
 END
 
-unless(defined($ENV{'form.encode'}) and length($ENV{'form.encode'})) {
-    $ENV{'form.encode'}='***ERROR***UNDEFINED***';
+unless(defined($env{'form.encode'}) and length($env{'form.encode'})) {
+    $env{'form.encode'}='***ERROR***UNDEFINED***';
 }
-my $text = '*'.uc($ENV{'form.encode'}).'*';
+my $text = '*'.uc($env{'form.encode'}).'*';
 my $oGdBar=GD::Barcode::Code39->new($text);
 if ($GD::Barcode::errStr or !defined($oGdBar)) {
     warn($GD::Barcode::errStr);