--- loncom/interface/coursecatalog.pm	2017/02/18 23:39:15	1.91
+++ loncom/interface/coursecatalog.pm	2017/02/20 18:29:22	1.92
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler for displaying the course catalog interface
 #
-# $Id: coursecatalog.pm,v 1.91 2017/02/18 23:39:15 raeburn Exp $
+# $Id: coursecatalog.pm,v 1.92 2017/02/20 18:29:22 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -125,7 +125,7 @@ sub handler {
         }
         my $js = '<script type="text/javascript">'."\n".
                  '// <![CDATA['."\n".
-                 &courselink_javascript()."\n".
+                 &courselink_javascript($r)."\n".
                  '// ]]>'."\n".
                  '</script>'."\n";
         $r->print(&Apache::loncommon::start_page('Search for a Course/Community',$js));
@@ -254,7 +254,7 @@ function setCourseId(caller) {
 }
 
 ENDSCRIPT
-        $catjs .= &courselink_javascript();
+        $catjs .= &courselink_javascript($r);
         if (&user_is_dc($codedom) || $canviewall) {
             $catjs .= <<ENDTOGGJS
 
@@ -352,7 +352,7 @@ sub course_details {
     my %add_entries = (topmargin    => "0",
                        marginheight => "0",);
     my $js = '<script type="text/javascript">'."\n".
-             &courselink_javascript().'</script>'."\n";
+             &courselink_javascript($r).'</script>'."\n";
     my $start_page =
         &Apache::loncommon::start_page('Course/Community Catalog',$js,
                                        {'add_entries' => \%add_entries, });
@@ -416,6 +416,8 @@ END
 }
 
 sub courselink_javascript {
+    my ($r) = @_;
+    my $hostname = $r->hostname();
     return <<"END";
 
 function ToSyllabus(cdom,cnum,usehttp) {
@@ -427,6 +429,10 @@ function ToSyllabus(cdom,cnum,usehttp) {
     }
     document.linklaunch.action = "/public/"+cdom+"/"+cnum+"/syllabus";
     if (usehttp == 1) {
+        var hostname = '$hostname';
+        if (hostname != '') {
+            document.linklaunch.action = 'http://'+hostname+document.linklaunch.action;
+        }
         document.linklaunch.action += '?usehttp=1';
     }
     document.linklaunch.submit();