--- loncom/interface/lonhtmlcommon.pm	2017/12/18 16:36:34	1.391
+++ loncom/interface/lonhtmlcommon.pm	2018/04/14 02:29:44	1.392
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common html routines
 #
-# $Id: lonhtmlcommon.pm,v 1.391 2017/12/18 16:36:34 raeburn Exp $
+# $Id: lonhtmlcommon.pm,v 1.392 2018/04/14 02:29:44 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -78,7 +78,11 @@ sub java_not_enabled {
 sub coursepreflink {
    my ($text,$category)=@_;
    if (&Apache::lonnet::allowed('opa',$env{'request.course.id'})) {
-      return '<a target="_top" href="'.&HTML::Entities::encode("/adm/courseprefs?phase=display&actions=$category",'<>&"').'"><span class="LC_setting">'.$text.'</span></a>';
+       my $target =' target="_top"';
+       if (($env{'request.lti.login'}) && ($env{'request.lti.target'} eq 'iframe')) {
+           $target ='';
+       }
+       return '<a'.$target.' href="'.&HTML::Entities::encode("/adm/courseprefs?phase=display&actions=$category",'<>&"').'"><span class="LC_setting">'.$text.'</span></a>';
    } else {
       return '';
    }
@@ -1925,9 +1929,13 @@ returns: nothing
                     }
                 }
             }
+            my $target;
+            unless (($env{'request.lti.login'}) && ($env{'request.lti.target'} eq 'iframe')) {
+                $target='_top';
+            }
             $menulink =  {  href   =>'/adm/menu',
                             title  =>'Go to main menu',
-                            target =>'_top',
+                            target =>$target,
                             text   =>$description,
                             no_mt  =>$no_mt_descr, };
             if($last) {