--- loncom/auth/lonacc.pm	2007/11/06 02:42:40	1.113
+++ loncom/auth/lonacc.pm	2008/03/08 02:45:14	1.114
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Cookie Based Access Handler
 #
-# $Id: lonacc.pm,v 1.113 2007/11/06 02:42:40 albertel Exp $
+# $Id: lonacc.pm,v 1.114 2008/03/08 02:45:14 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -57,7 +57,7 @@ sub goodbye {
 ###############################################
 
 sub get_posted_cgi {
-    my ($r) = @_;
+    my ($r,$fields) = @_;
 
     my $buffer;
     if ($r->header_in('Content-length')) {
@@ -73,6 +73,9 @@ sub get_posted_cgi {
 	    $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
 	    $name  =~ tr/+/ /;
 	    $name  =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
+            if (ref($fields) eq 'ARRAY') {
+                next if (!grep(/^\Q$name\E$/,@{$fields}));
+            }
 	    &Apache::loncommon::add_to_env("form.$name",$value);
 	}
     } else {
@@ -93,6 +96,9 @@ sub get_posted_cgi {
 		    } else {
 			$value=~s/\s+$//s;
 		    }
+                    if (ref($fields) eq 'ARRAY') {
+                        next if (!grep(/^\Q$name\E$/,@{$fields}));
+                    }
 		    &Apache::loncommon::add_to_env("form.$name",$value);
 		}
 		if ($i<$#lines) {