--- loncom/interface/lonnavmaps.pm	2016/02/22 03:37:02	1.512
+++ loncom/interface/lonnavmaps.pm	2016/03/02 14:06:30	1.514
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Navigate Maps Handler
 #
-# $Id: lonnavmaps.pm,v 1.512 2016/02/22 03:37:02 raeburn Exp $
+# $Id: lonnavmaps.pm,v 1.514 2016/03/02 14:06:30 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -2121,7 +2121,7 @@ sub change_user {
 
 
 
-    # Now clear the parm cache and reconstruct the parm hash fromt he big_hash
+    # Now clear the parm cache and reconstruct the parm hash from the big_hash
     # param.xxxx keys.
 
     $self->{PARM_CACHE} = {};
@@ -2881,7 +2881,7 @@ sub getcourseparam {
     # 
     # We want the course level stuff from the way
     # parmval_real operates 
-    # TODO: Fator some of this stuff out of
+    # TODO: Factor some of this stuff out of
     # both parmval_real and here
     #
     my $courselevel = $cid . '.' .  $what;
@@ -2898,7 +2898,7 @@ sub getcourseparam {
     }
     # Try for the group's course level option:
 
-    if ($uname ne '' and defined($courseopt)) {
+    if ($cgroup ne '' and defined($courseopt)) {
 	if (defined($$courseopt{$grplevel})) {
 	    return $$courseopt{$grplevel};
 	}
@@ -2906,12 +2906,12 @@ sub getcourseparam {
 
     #  Try for section level parameters:
 
-    if ($csec and defined($courseopt)) {
+    if ($csec ne '' and defined($courseopt)) {
 	if (defined($$courseopt{$seclevel})) {
 	    return $$courseopt{$seclevel};
 	}
     }
-    # Try for 'additional' course parameterse:
+    # Try for 'additional' course parameters:
 
     if (defined($courseopt)) {
 	if (defined($$courseopt{$courselevel})) {
@@ -4532,7 +4532,7 @@ sub duedate {
     my $due_date=$self->parmval("duedate", $part);
     if ($interval[0] =~ /\d+/) {
        my $first_access=&Apache::lonnet::get_first_access($interval[1],
-                                                          $self->symb);
+                                                          $self->{SYMB});
 	if (defined($first_access)) {
            my $interval = $first_access+$interval[0];
 	    $date = (!$due_date || $interval < $due_date) ? $interval 
@@ -4614,7 +4614,7 @@ sub part_display {
     my $self= shift(); my $partID = shift();
     if (! defined($partID)) { $partID = '0'; }
     my $display=&Apache::lonnet::EXT('resource.'.$partID.'.display',
-                                     $self->symb);
+                                     $self->{SYMB});
     if (! defined($display) || $display eq '') {
         $display = $partID;
     }