--- loncom/interface/loncommon.pm	2013/01/01 19:58:11	1.1075.2.25
+++ loncom/interface/loncommon.pm	2013/01/15 18:48:17	1.1075.2.28
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.1075.2.25 2013/01/01 19:58:11 raeburn Exp $
+# $Id: loncommon.pm,v 1.1075.2.28 2013/01/15 18:48:17 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -68,6 +68,7 @@ use Apache::loncoursedata();
 use Apache::lontexconvert();
 use Apache::lonclonecourse();
 use Apache::lonuserutils();
+use Apache::lonuserstate();
 use LONCAPA qw(:DEFAULT :match);
 use DateTime::TimeZone;
 use DateTime::Locale::Catalog;
@@ -11604,7 +11605,7 @@ sub cleanup_empty_dirs {
             my $numitems = 0;
             foreach my $item (@dircontents) {
                 if (-d "$path/$item") {
-                    &recurse_dirs("$path/$item");
+                    &cleanup_empty_dirs("$path/$item");
                     if (-e "$path/$item") {
                         $numitems ++;
                     }
@@ -14123,6 +14124,32 @@ sub update_content_constraints {
     return;
 }
 
+sub allmaps_incourse {
+    my ($cdom,$cnum,$chome,$cid) = @_;
+    if ($cdom eq '' || $cnum eq '' || $chome eq '' || $cid eq '') {
+        $cid = $env{'request.course.id'};
+        $cdom = $env{'course.'.$cid.'.domain'};
+        $cnum = $env{'course.'.$cid.'.num'};
+        $chome = $env{'course.'.$cid.'.home'};
+    }
+    my %allmaps = ();
+    my $lastchange =
+        &Apache::lonnet::get_coursechange($cdom,$cnum);
+    if ($lastchange > $env{'request.course.tied'}) {
+        my ($furl,$ferr) = &Apache::lonuserstate::readmap("$cdom/$cnum");
+        unless ($ferr) {
+            &update_content_constraints($cdom,$cnum,$chome,$cid);
+        }
+    }
+    my $navmap = Apache::lonnavmaps::navmap->new();
+    if (defined($navmap)) {
+        foreach my $res ($navmap->retrieveResources(undef,sub { $_[0]->is_map() },1,0,1)) {
+            $allmaps{$res->src()} = 1;
+        }
+    }
+    return \%allmaps;
+}
+
 sub parse_supplemental_title {
     my ($title) = @_;
 
@@ -14332,7 +14359,7 @@ sub check_captcha {
                       output_folder => $captcha_params{'output_dir'},
                       data_folder   => $captcha_params{'db_dir'},
                   );
-    my $captcha_chk = $captcha->check_code($code,$md5sum);
+    $captcha_chk = $captcha->check_code($code,$md5sum);
     my %captcha_hash = (
                         0       => 'Code not checked (file error)',
                        -1      => 'Failed: code expired',