--- loncom/interface/lonnavmaps.pm	2019/07/27 16:44:31	1.509.2.11
+++ loncom/interface/lonnavmaps.pm	2020/07/19 15:48:18	1.509.2.11.2.2
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Navigate Maps Handler
 #
-# $Id: lonnavmaps.pm,v 1.509.2.11 2019/07/27 16:44:31 raeburn Exp $
+# $Id: lonnavmaps.pm,v 1.509.2.11.2.2 2020/07/19 15:48:18 raeburn Exp $
 
 #
 # Copyright Michigan State University Board of Trustees
@@ -577,7 +577,11 @@ sub getLinkForResource {
 	    my $anchor;
 	    if ($res->is_page()) {
 		foreach my $item (@$stack) { if (defined($item)) { $anchor = $item; }  }
-		$anchor=&escape($anchor->shown_symb());
+		if ($anchor->encrypted() && !&advancedUser()) {
+		    $anchor='LC_'.$anchor->id();
+		} else {
+		    $anchor=&escape($anchor->shown_symb());
+		}
 		return ($res->link(),$res->shown_symb(),$anchor);
 	    }
             # in case folder was skipped over as "only sequence"
@@ -1937,7 +1941,7 @@ END
                     $currentJumpDelta) {
                     # Jam the anchor after the <td> tag;
                     # necessary for valid HTML (which Mozilla requires)
-                    $colHTML =~ s/\>/\>\<a name="curloc" \/\>/;
+                    $colHTML =~ s/\>/\>\<a name="curloc" \>\<\/a\>/;
                     $displayedJumpMarker = 1;
                 }
                 $result .= $colHTML . "\n";
@@ -3795,7 +3799,8 @@ sub next {
     # That ends the main iterator logic. Now, do we want to recurse
     # down this map (if this resource is a map)?
     if ( ($self->{HERE}->is_sequence() || (!$closeAllPages && $self->{HERE}->is_page())) &&
-        (defined($self->{FILTER}->{$self->{HERE}->map_pc()}) xor $self->{CONDITION})) {
+        (defined($self->{FILTER}->{$self->{HERE}->map_pc()}) xor $self->{CONDITION}) &&
+        ($env{'request.role.adv'} || !$self->{HERE}->randomout())) { 
         $self->{RECURSIVE_ITERATOR_FLAG} = 1;
         my $firstResource = $self->{HERE}->map_start();
         my $finishResource = $self->{HERE}->map_finish();
@@ -4814,11 +4819,12 @@ sub duedate {
     my $date;
     my @interval=$self->parmval("interval", $part);
     my $due_date=$self->parmval("duedate", $part);
-    if ($interval[0] =~ /\d+/) {
-       my $first_access=&Apache::lonnet::get_first_access($interval[1],
-                                                          $self->{SYMB});
+    if ($interval[0] =~ /^(\d+)/) {
+        my $timelimit = $1;
+        my $first_access=&Apache::lonnet::get_first_access($interval[1],
+                                                           $self->{SYMB});
 	if (defined($first_access)) {
-           my $interval = $first_access+$interval[0];
+            my $interval = $first_access+$timelimit;
 	    $date = (!$due_date || $interval < $due_date) ? $interval 
                                                           : $due_date;
 	} else {