--- loncom/interface/lonhtmlcommon.pm	2016/10/31 21:00:49	1.358.2.9
+++ loncom/interface/lonhtmlcommon.pm	2018/12/27 20:10:31	1.394
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common html routines
 #
-# $Id: lonhtmlcommon.pm,v 1.358.2.9 2016/10/31 21:00:49 raeburn Exp $
+# $Id: lonhtmlcommon.pm,v 1.394 2018/12/27 20:10:31 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 '';
    }
@@ -92,7 +96,7 @@ sub raw_href_to_link {
 
 sub entity_encode {
     my ($text)=@_;
-    return &HTML::Entities::encode($text, '<>&"');
+    return &HTML::Entities::encode($text, '\'<>&"');
 }
 
 sub direct_parm_link {
@@ -101,9 +105,13 @@ sub direct_parm_link {
     $filter=&entity_encode($filter);
     $part=&entity_encode($part);
     if (($symb) && (&Apache::lonnet::allowed('opa')) && ($target ne 'tex')) {
-       return "<a target='_top' href='/adm/parmset?symb=$symb&amp;filter=$filter&amp;part=$part'><span class='LC_setting'>$linktext</span></a>";
+        my $target=' target="_top"';
+        if (($env{'request.lti.login'}) && ($env{'request.lti.target'} eq 'iframe')) {
+            $target='';
+        }
+        return "<a".$target." href=\"/adm/parmset?symb=$symb&amp;filter=$filter&amp;part=$part\"><span class=\"LC_setting\">$linktext</span></a>";
     } else {
-       return $linktext;
+        return $linktext;
     }
 }
 ##############################################
@@ -407,7 +415,7 @@ sub textbox {
 ##############################################
 ##############################################
 sub checkbox {
-    my ($name,$checked,$value) = @_;
+    my ($name,$checked,$value,$special) = @_;
     my $Str = '<input type="checkbox" name="'.$name.'" ';
     if (defined($value)) {
         $Str .= 'value="'.$value.'"';
@@ -415,7 +423,7 @@ sub checkbox {
     if ($checked) {
         $Str .= ' checked="checked"';
     }
-    $Str .= ' />';
+    $Str .= $special.' />';
     return $Str;
 }
 
@@ -451,10 +459,12 @@ sub radio {
 &date_setter returns html and javascript for a compact date-setting form.
 To retrieve values from it, use &get_date_from_form.
 
-Inputs
-
 =over 4
 
+=item Inputs
+
+=over
+
 =item $dname 
 
 The name to prepend to the form elements.  
@@ -515,10 +525,12 @@ If true, text boxes for seconds are omit
 
 =back
 
-Bugs
+=item Bugs
 
 The method used to restrict user input will fail in the year 2400.
 
+=back
+
 =cut
 
 ##############################################
@@ -671,7 +683,7 @@ ENDJS
     my $minuteselector = qq{<input type="text" name="$dname\_minute" $special $state value="$min" size="3" />};
     my $secondselector= qq{<input type="text" name="$dname\_second" $special $state value="$sec" size="3" />};
     my $cal_link;
-    if (!$nolink) {
+    unless (($nolink) || ($state eq 'disabled')) {
         $cal_link = qq{<a href="javascript:$dname\_opencalendar()">};
     }
     #
@@ -685,18 +697,20 @@ ENDJS
                       $monthselector,$dayselector,$yearselector,
                       $hourselector).
                    $tzone;
+
     } elsif ($no_ss) {
         $result .= &mt('[_1] [_2] [_3] [_4] [_5]m',
                       $monthselector,$dayselector,$yearselector,
                       $hourselector,$minuteselector).
                    $tzone;
+
     } else {
         $result .= &mt('[_1] [_2] [_3] [_4] [_5]m [_6]s ',
                       $monthselector,$dayselector,$yearselector,
                       $hourselector,$minuteselector,$secondselector).
                    $tzone;
     }
-    if (!$nolink) {
+    unless (($nolink) || ($state eq 'disabled')) {
         $result .= &mt('[_1]Select Date[_2]',$cal_link,'</a>');
     }
     $result .= "</span>\n<!-- end $dname date setting form -->\n";
@@ -741,7 +755,9 @@ sub build_url {
 
 get_date_from_form retrieves the date specified in an &date_setter form.
 
-Inputs:
+=over
+
+=item Inputs:
 
 =over 4
 
@@ -755,6 +771,8 @@ The unix time to use as the default in c
 
 =back
 
+=back
+
 Returns: Unix time represented in the form.
 
 =cut
@@ -926,7 +944,9 @@ sub javascript_docopen {
 Returns html for a selection box which allows the user to choose the
 enrollment status of students.  The selection box name is 'Status'.
 
-Inputs:
+=over
+
+=item Inputs:
 
 $status: the currently selected status.  If undefined the value of
 $env{'form.Status'} is taken.  If that is undefined, a value of 'Active'
@@ -940,6 +960,8 @@ $size: the size (number of lines) of the
 $onchange: javascript to use when the value is changed.  Enclosed in 
 double quotes, ""s, not single quotes.
 
+=back
+
 Returns: a perl string as described.
 
 =cut
@@ -987,7 +1009,7 @@ sub StatusOptions {
 
 =pod
 
-=item Progess Window Handling Routines
+=item Progress Window Handling Routines
 
 These routines handle the creation, update, increment, and closure of 
 progress windows.  The progress window reports to the user the number
@@ -1001,25 +1023,34 @@ of items completed and an estimate of th
 Writes javascript to the client to open a progress window and returns a
 data structure used for bookkeeping.
 
-Inputs
+=over
 
-=over 4
+=item Inputs
+
+=over
 
 =item $r Apache request
 
 =item $number_to_do The total number of items being processed.
 
+=item $preamble Optional HTML to display before the progress bar.
+
 =back
 
-Returns a hash containing the progress state data structure.
+=back
 
+Returns a hash containing the progress state data structure.
+If $number_to_do is zero or null, an indeterminate progress bar will
+be used.
 
 =item &Update_PrgWin()
 
 Updates the text in the progress indicator.  Does not increment the count.
 See &Increment_PrgWin.
 
-Inputs:
+=over
+
+=item Inputs:
 
 =over 4
 
@@ -1031,25 +1062,38 @@ Inputs:
 
 =back
 
+=back
+
 Returns: none
 
 
-=item Increment_PrgWin()
+=item &Increment_PrgWin()
 
 Increment the count of items completed for the progress window by $step or 1 if no step is provided.
 
-Inputs:
+=over
+
+=item Inputs:
 
 =over 4
 
-=item $r Apache request
+=item $r 
 
-=item $prog_state Pointer to the data structure returned by Create_PrgWin
+Apache request
+
+=item $prog_state
+
+Pointer to the data structure returned by Create_PrgWin
+
+=item $extraInfo
 
-=item $extraInfo A description of the items being iterated over.  Typically
-'student'.
+A description of the items being iterated over.  Typically 'student'.
 
-=item $step (optional) counter step. Will be set to default 1 if ommited. step must be greater than 0 or empty.
+=item $step
+
+(optional) counter step. Will be set to default 1 if ommited. step must be greater than 0 or empty.
+
+=back
 
 =back
 
@@ -1060,7 +1104,9 @@ Returns: none
 
 Closes the progress window.
 
-Inputs:
+=over
+
+=item Inputs:
 
 =over 4 
 
@@ -1070,6 +1116,8 @@ Inputs:
 
 =back
 
+=back
+
 Returns: none
 
 =back
@@ -1082,20 +1130,20 @@ Returns: none
 
 # Create progress
 sub Create_PrgWin {
-    my ($r,$number_to_do)=@_;
+    my ($r,$number_to_do,$preamble)=@_;
     my %prog_state;
     $prog_state{'done'}=0;
     $prog_state{'firststart'}=&Time::HiRes::time();
     $prog_state{'laststart'}=&Time::HiRes::time();
     $prog_state{'max'}=$number_to_do;
-    &Apache::loncommon::LCprogressbar($r); 
+    &Apache::loncommon::LCprogressbar($r,$prog_state{'max'},$preamble); 
     return %prog_state;
 }
 
 # update progress
 sub Update_PrgWin {
     my ($r,$prog_state,$displayString)=@_;
-    &Apache::loncommon::LCprogressbarUpdate($r,undef,$displayString);
+    &Apache::loncommon::LCprogressbarUpdate($r,undef,$displayString,$$prog_state{'max'});
     $$prog_state{'laststart'}=&Time::HiRes::time();
 }
 
@@ -1145,7 +1193,7 @@ sub Increment_PrgWin {
     if ($$prog_state{'max'}) {
        $percent=int(100.*$current/$$prog_state{'max'});
     }
-    &Apache::loncommon::LCprogressbarUpdate($r,$percent,$timeinfo);
+    &Apache::loncommon::LCprogressbarUpdate($r,$percent,$timeinfo,$$prog_state{'max'});
     $$prog_state{'laststart'}=&Time::HiRes::time();
 }
 
@@ -1162,7 +1210,7 @@ sub Close_PrgWin {
 sub crumbs {
     my ($uri,$target,$prefix,$form,$skiplast,$onclick)=@_;
 # You cannot crumbnify uploaded or adm resources
-    if ($uri=~/^\/*(uploaded|adm)\//) { return &mt('(Internal Course/Group Content)'); }
+    if ($uri=~/^\/*(uploaded|adm)\//) { return &mt('(Internal Course/Community Content)'); }
     if ($target) {
         $target = ' target="'.
                   &Apache::loncommon::escape_single($target).'"';
@@ -1182,6 +1230,12 @@ sub crumbs {
             } else {
                 $path.='/'; 
             }
+            if ($path eq '/res/') {
+                unless (&Apache::lonnet::allowed('bre',$path)) {
+                    $output.="$dir/";
+                    next;
+                }
+            }
             my $href_path = &HTML::Entities::encode($path,'<>&"');
             &Apache::loncommon::inhibit_menu_check(\$href_path);
             if ($form) {
@@ -1259,9 +1313,9 @@ sub htmlareaheaders {
 ENDEDITOR
 	}
     $s.=(<<ENDJQUERY);
-<script type="text/javascript" src="/adm/jQuery/js/jquery-1.11.3.min.js"></script>
-<script type="text/javascript" src="/adm/jQuery/js/jquery-ui-1.11.4.custom.min.js"></script>
-<link rel="stylesheet" type="text/css" href="/adm/jQuery/css/smoothness/jquery-ui-1.11.4.custom.css" />
+<script type="text/javascript" src="/adm/jQuery/js/jquery-3.2.1.min.js"></script>
+<script type="text/javascript" src="/adm/jQuery/js/jquery-ui-1.12.1.custom.min.js"></script>
+<link rel="stylesheet" type="text/css" href="/adm/jQuery/css/smoothness/jquery-ui-1.12.1.custom.min.css" />
 <script type="text/javascript" src="/adm/jpicker/js/jpicker-1.1.6.min.js" >
 </script>
 <link rel="stylesheet" type="text/css" href="/adm/jpicker/css/jPicker-1.1.6.min.css" />
@@ -1298,6 +1352,68 @@ $(document).ready(function(){
 });';
 }
 
+sub countdown {
+
+    # Code to put a due date countdown in 'duedatecountdown' span.
+    # This is currently located in the breadcrumb headers.
+    # note that the dueDateLayout is internatinoalized below.
+    # Here document is used to support the substitution into the javascript below.
+    # ..which unforunately necessitates escaping the $'s in the javascript.
+    # There are several times of importance
+    #
+    # serverDueDate -  The absolute time at which the problem expires.
+    # serverTime    -  The server's time when the problem finished computing.
+    # clientTime    -  The client's time...as close to serverTime as possible.
+    #                  The clientTime will be slightly later due to
+    #                  1. The latency between problem computation and
+    #                     the first network action.
+    #                  2. The time required between the page load-start and the actual
+    #                     initial javascript execution that got clientTime.
+    # These are used as follows:
+    #   The difference between clientTime and serverTime are used to
+    #   correct for differences in clock settings between the browser's system and the
+    #   server's.
+    #
+    #   The difference between clientTime and the time at which the ready() method
+    #   starts executing is used to estimate latencies for page load and submission.
+    #   Since this is an estimate, it is doubled.  The latency estimate + one minute
+    #   is used to determine when the countdown timer turns red to warn the user
+    #   to think about submitting.
+
+
+    my $dueDateLayout = &mt('Due in: {dn} {dl} {hnn}{sep}{mnn}{sep}{snn} [_1]',
+                            "<span id='submitearly'></span>");
+    my $early = '- <b>'.&mt('Submit Early').'</b>';
+    my $pastdue = '- <b>'.&mt('Past Due').'</b>';
+    return <<"JAVASCRIPT";
+
+    var documentReadyTime;
+
+\$(document).ready(function() {
+   if (typeof(dueDate) != "undefined") {
+       documentReadyTime = (new Date()).getTime();
+      \$("#duedatecountdown").countdown({until: dueDate, compact: true,
+         layout: "$dueDateLayout",
+         onTick: function (periods) {
+            var latencyEstimate = (documentReadyTime - clientTime) * 2;
+            if(\$.countdown.periodsToSeconds(periods) < (300 + latencyEstimate)) {
+               \$("#submitearly").html("$early");
+               if (\$.countdown.periodsToSeconds(periods) < 1) {
+                    \$("#submitearly").html("$pastdue");
+               }
+            }
+            if(\$.countdown.periodsToSeconds(periods) < (60 + latencyEstimate)) {
+               \$(this).css("color", "red");   //Highlight last minute.
+            }
+         }
+      });
+   }
+});
+
+JAVASCRIPT
+
+}
+
 # ----------------------------------------- Script to activate only some fields
 
 sub htmlareaselectactive {
@@ -1521,62 +1637,11 @@ sub htmlareaselectactive {
 
 	});
 ';
-    $output .= &color_picker;
-
-    # Code to put a due date countdown in 'duedatecountdown' span.
-    # This is currently located in the breadcrumb headers.
-    # note that the dueDateLayout is internatinoalized below.
-    # Here document is used to support the substitution into the javascript below.
-    # ..which unforunately necessitates escaping the $'s in the javascript.
-    # There are several times of importance
-    #
-    # serverDueDate -  The absolute time at which the problem expires.
-    # serverTime    -  The server's time when the problem finished computing.
-    # clientTime    -  The client's time...as close to serverTime as possible.
-    #                  The clientTime will be slightly later due to
-    #                  1. The latency between problem computation and 
-    #                     the first network action.
-    #                  2. The time required between the page load-start and the actual
-    #                     initial javascript execution that got clientTime.
-    # These are used as follows:
-    #   The difference between clientTime and serverTime are used to 
-    #   correct for differences in clock settings between the browser's system and the
-    #   server's.
-    #
-    #   The difference between clientTime and the time at which the ready() method
-    #   starts executing is used to estimate latencies for page load and submission.
-    #   Since this is an estimate, it is doubled.  The latency estimate + one minute
-    #   is used to determine when the countdown timer turns red to warn the user
-    #   to think about submitting.
+    $output .= &color_picker();
 
-    my $dueDateLayout = &mt('Due in: {dn} {dl} {hnn}{sep}{mnn}{sep}{snn} [_1]',
-                            "<span id='submitearly'></span>");
-    my $early = '- <b>'.&mt('Submit Early').'</b>';
-    my $pastdue = '- <b>'.&mt('Past Due').'</b>';
-    $output .= <<JAVASCRIPT;
+    $output .= &countdown();
 
-    var documentReadyTime;
-
-\$(document).ready(function() {
-   if (typeof(dueDate) != "undefined") {
-       documentReadyTime = (new Date()).getTime();
-      \$("#duedatecountdown").countdown({until: dueDate, compact: true, 
-         layout: "$dueDateLayout",
-         onTick: function (periods) {
-	    var latencyEstimate = (documentReadyTime - clientTime) * 2;
-            if(\$.countdown.periodsToSeconds(periods) < (300 + latencyEstimate)) {
-               \$("#submitearly").html("$early");
-               if (\$.countdown.periodsToSeconds(periods) < 1) {
-                    \$("#submitearly").html("$pastdue");
-               }
-            }
-            if(\$.countdown.periodsToSeconds(periods) < (60 + latencyEstimate)) {
-               \$(this).css("color", "red");   //Highlight last minute.
-            }
-         }
-      });
-   }
-});
+    $output .= <<"JAVASCRIPT";
 
     /* This code describes the spellcheck options that will be used for
        items with class 'spellchecked'.  It is necessary for those objects'
@@ -1670,7 +1735,8 @@ sub show_return_link {
     if ($env{'request.noversionuri'}=~m{^/priv/} ||
         $env{'request.uri'}=~m{^/priv/}) { return 1; }
     return if ($env{'request.noversionuri'} eq '/adm/supplemental');
-
+    return if (($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') &&
+               (!$env{'request.role.adv'}));
     if (($env{'request.noversionuri'} =~ m{^/adm/(viewclasslist|navmaps)($|\?)})
         || ($env{'request.noversionuri'} =~ m{^/adm/.*/aboutme($|\?)})) {
 
@@ -1684,7 +1750,7 @@ sub show_return_link {
             (($env{'request.noversionuri'}=~/^\/adm\//) &&
              ($env{'request.noversionuri'}!~/^\/adm\/wrapper\//) &&
              ($env{'request.noversionuri'}!~
-              m{^/adm/.*/(smppg|bulletinboard)($|\?)})
+              m{^/adm/.*/(smppg|bulletinboard|ext\.tool)($|\?)})
            ));
 }
 
@@ -1758,19 +1824,54 @@ A link to help for the component will be
 
 All inputs can be undef without problems.
 
-Inputs: $component (the text on the right side of the breadcrumbs trail),
-        $component_help (the help item filename (without .tex extension).
-        $menulink (boolean, controls whether to include a link to /adm/menu)
-        $helplink (if 'nohelp' don't include the orange help link)
-        $css_class (optional name for the class to apply to the table for CSS)
-        $no_mt (optional flag, 1 if &mt() is _not_ to be applied to $component
-           when including the text on the right.
-        $CourseBreadcrumbs (optional flag, 1 if &breadcrumbs called from &docs_breadcrumbs,
-           because breadcrumbs are being)
-        $topic_help (optional help item to be displayed on right side of the breadcrumbs 
-           row, using loncommon::help_open_topic() to generate the link.
-        $topic_help_text (text to include in the link in the optional help item 
-           on the right side of the breadcrumbs row.
+=over
+
+=item Inputs:
+
+=over
+
+=item $component
+
+the text on the right side of the breadcrumbs trail
+
+=item $component_help
+
+the help item filename (without .tex extension).
+
+=item $menulink
+
+boolean, controls whether to include a link to /adm/menu
+
+=item $helplink
+
+if 'nohelp' don't include the orange help link
+
+=item $css_class
+
+optional name for the class to apply to the table for CSS
+
+=item $no_mt 
+
+optional flag, 1 if &mt() is _not_ to be applied to $component when including the text on the right
+
+=item $CourseBreadcrumbs
+
+optional flag, 1 if &breadcrumbs called from &docs_breadcrumbs, because breadcrumbs are being
+used to display hierarchy for current folder shown in the Course Editor. 
+
+=item $topic_help
+
+optional help item to be displayed on right side of the breadcrumbs row, using 
+loncommon::help_open_topic() to generate the link. 
+
+=item $topic_help_text
+
+text to include in the link in the optional help item ($topic_help) on the right
+side of the breadcrumbs row.
+
+=back
+
+=back
 
 Returns a string containing breadcrumbs for the current page.
 
@@ -1799,7 +1900,7 @@ returns: nothing
     
     sub breadcrumbs {
         my ($component,$component_help,$menulink,$helplink,$css_class,$no_mt, 
-            $CourseBreadcrumbs,$topic_help,$topic_help_text) = @_;
+            $CourseBreadcrumbs,$topic_help,$topic_help_text,$crstype) = @_;
         #
         $css_class ||= 'LC_breadcrumbs';
 
@@ -1824,7 +1925,7 @@ returns: nothing
                     $env{'course.'.$env{'request.course.id'}.'.description'};
                 $no_mt_descr = 1;
                 if ($env{'request.noversionuri'} =~ 
-                    m{^/public/($match_domain)/($match_courseid)/syllabus$}) {
+                    m{^/?public/($match_domain)/($match_courseid)/syllabus$}) {
                     unless (($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1) &&
                             ($env{'course.'.$env{'request.course.id'}.'.num'} eq $2)) {
                         $description = 'Menu';
@@ -1832,9 +1933,13 @@ returns: nothing
                     }
                 }
             }
+            my $target = '_top';
+            if (($env{'request.lti.login'}) && ($env{'request.lti.target'} eq 'iframe')) {
+                $target='';
+            }
             $menulink =  {  href   =>'/adm/menu',
                             title  =>'Go to main menu',
-                            target =>'_top',
+                            target =>$target,
                             text   =>$description,
                             no_mt  =>$no_mt_descr, };
             if($last) {
@@ -1853,7 +1958,10 @@ returns: nothing
                             class => 'LC_menubuttons_link',
                           };
             if ($env{'request.noversionuri'} eq '/adm/searchcat') {
-                $hashref->{'target'} = '_top'; 
+                $hashref->{'target'} = '_top';
+                if (($env{'request.lti.login'}) && ($env{'request.lti.target'} eq 'iframe')) {
+                    $hashref->{'target'} = '';
+                }
             }
             $links=&htmltag( 'a','<img src="/res/adm/pages/tolastloc.png" alt="'.$alttext.'" class="LC_icon" />',
                              $hashref);
@@ -1977,7 +2085,9 @@ Adds $html to $category of the breadcrum
 $html is usually a link to a page that invokes a function on the currently 
 displayed data (e.g. print when viewing a problem)
 
-Currently there are 3 possible values for $category: 
+=over
+
+=item Currently there are 3 possible values for $category: 
 
 =over 
 
@@ -1991,7 +2101,9 @@ remaining items in right of breadcrumbs
 advanced tools shown in a separate box below breadcrumbs line 
 
 =back
- 
+
+=back
+
 returns: nothing
 
 =cut
@@ -2040,8 +2152,17 @@ returns: a hash containing the current b
 Creates html for breadcrumb tools (categories navigation and tools) and inserts 
 \$breadcrumbs at the correct position.
 
-input: \$breadcrumbs - a reference to the string containing prepared 
-breadcrumbs.
+=over
+
+=item input: 
+
+=over
+
+=item \$breadcrumbs - a reference to the string containing prepared breadcrumbs.
+
+=back
+
+=back
 
 returns: nothing
 
@@ -2067,8 +2188,17 @@ returns: nothing
 Creates html for advanced tools (category advtools) and inserts \$breadcrumbs 
 at the correct position.
 
-input: \$breadcrumbs - a reference to the string containing prepared 
-breadcrumbs (after render_tools call).
+=over
+
+=item input:
+
+=over
+
+=item \$breadcrumbs - a reference to the string containing prepared breadcrumbs (after render_tools call).
+
+=back
+
+=back
 
 returns: nothing
 
@@ -2101,11 +2231,11 @@ sub docs_breadcrumbs {
         my $foldername=shift(@folders);
         if ($folderpath) {$folderpath.='&';}
         $folderpath.=$folder.'&'.$foldername;
-        my $url;
+        my $url = $env{'request.use_absolute'};
         if ($allowed) {
-            $url = '/adm/coursedocs?folderpath=';
+            $url .= '/adm/coursedocs?folderpath=';
         } else {
-            $url = '/adm/supplemental?folderpath=';
+            $url .= '/adm/supplemental?folderpath=';
         }
         $url .= &escape($folderpath);
         my $name=&unescape($foldername);
@@ -3377,7 +3507,17 @@ function go(url) {
    if (url!='' && url!= null) {
        currentURL = null;
        currentSymb= null;
-       window.location.href=url;
+       var lcHostname = setLCHost();
+       if (lcHostname!='' && lcHostname!= null) {
+           var RegExp = /^https?\:/;
+           if (RegExp.test(url)) {
+               window.location.href=url;
+           } else {
+               window.location.href=lcHostname+url;
+           }
+       } else {
+           window.location.href=url;
+       }
    }
 }
 
@@ -3396,8 +3536,8 @@ ENDUTILITY
 
 sub jump_to_editres {
     my ($cfile,$home,$switchserver,$forceedit,$forcereg,$symb,$folderpath,
-        $title,$idx,$suppurl,$todocs,$suppanchor) = @_;
-    my ($jscall,$anchor);
+        $title,$hostname,$idx,$suppurl,$todocs,$suppanchor) = @_;
+    my ($jscall,$anchor,$usehttp,$usehttps,$is_ext);
     if ($switchserver) {
         if ($home) {
             $cfile = '/adm/switchserver?otherserver='.$home.'&amp;role='.
@@ -3417,9 +3557,37 @@ sub jump_to_editres {
         }
     } else {
         unless ($cfile =~ m{^/priv/}) {
-            if ($cfile =~ m{^(/adm/wrapper/ext/[^#]+)#([^#]+)$}) {
+            if ($cfile =~ m{^(/adm/wrapper/ext/([^#]+))#([^#]+)$}) {
                 $cfile = $1;
-                $anchor = $2;
+                my $extlink = $2;
+                $anchor = $3;
+                $is_ext = 1;
+                if (($extlink !~ /^https:/) && ($ENV{'SERVER_PORT'} == 443)) {
+                    unless (&Apache::lonnet::uses_sts()) {
+                        $usehttp = 1;
+                    }
+                } elsif ($env{'request.use_absolute'}) {
+                    if ($env{'request.use_absolute'} =~ m{^https://}) {
+                        $usehttps = 1;
+                    }
+                } 
+            } elsif ($cfile =~ m{^/?public/($match_domain)/($match_courseid)/syllabus}) {
+                if ($ENV{'SERVER_PORT'} == 443) {
+                    my ($cdom,$cnum) = ($1,$2);
+                    if (($env{'request.course.id'}) &&
+                        ($env{'course.'.$env{'request.course.id'}.'.num'} eq $cnum) &&
+                        ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $cdom)) {
+                        if ($env{'course.'.$env{'request.course.id'}.'.externalsyllabus'} =~ m{^http://}) {
+                            unless (&Apache::lonnet::uses_sts()) {
+                                $usehttp = 1;
+                            }
+                        }
+                    }
+                } elsif ($env{'request.use_absolute'}) {
+                    if ($env{'request.use_absolute'} =~ m{^https://}) {
+                        $usehttps = 1;
+                    }
+                }
             }
             if ($symb) {
                 if ($anchor ne '') {
@@ -3445,6 +3613,18 @@ sub jump_to_editres {
             }
             if ($forceedit) {
                 $cfile .= (($cfile=~/\?/)?'&amp;':'?').'forceedit=1';
+                if ($usehttps) {
+                    $cfile = $env{'request.use_absolute'}.(($cfile =~ /^\//)? '':'/').$cfile;
+                }
+            } elsif ($usehttp) {
+                if ($hostname ne '') {
+                    $cfile = 'http://'.$hostname.(($cfile =~ /^\//)? '':'/').$cfile;
+                }
+                unless ($is_ext) {
+                    $cfile .= (($cfile=~/\?/)?'&amp;':'?').'usehttp=1';
+                }
+            } elsif ($usehttps) {
+                $cfile = $env{'request.use_absolute'}.(($cfile =~ /^\//)? '':'/').$cfile;
             }
             if ($forcereg) {
                 $cfile .= (($cfile=~/\?/)?'&amp;':'?').'register=1';
@@ -3471,15 +3651,18 @@ sub jump_to_editres {
 # javascript_valid_email
 #
 # Generates javascript to validate an e-mail address.
-# Returns a javascript function which accetps a form field as argumnent, and
+# Returns a javascript function which accepts a form field as argument, and
 # returns false if field.value does not satisfy two regular expression matches
 # for a valid e-mail address.  Backwards compatible with old browsers without
 # support for javascript RegExp (just checks for @ in field.value in this case). 
 
 sub javascript_valid_email {
     my $scripttag .= <<'END';
-function validmail(field) {
+function validmail(field,suffix) {
     var str = field.value;
+    if (suffix != '' && suffix != undefined) {
+        str += suffix;
+    }
     if (window.RegExp) {
         var reg1str = "(@.*@)|(\\.\\.)|(@\\.)|(\\.@)|(^\\.)";
         var reg2str = "^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$"; //"
@@ -3589,7 +3772,9 @@ sub scripttag {
 
 Constructs a XHTML list from \@array.
 
-input: 
+=over
+
+=item input: 
 
 =over
 
@@ -3603,7 +3788,9 @@ Attributes for <ul> and <li> passed in a
 See htmltag() for more details.
 
 =back
- 
+
+=back
+
 returns: XHTML list as String. 
 
 =cut   
@@ -3722,13 +3909,19 @@ should be included in this list.
 
 If the optional headline text is not provided, a default text will be used.
 
+=over
+
+=item Related routines:
 
-Related routines:
 =over 4
-add_item_funclist
-end_funclist
+
+=item add_item_funclist
+
+=item end_funclist
+
 =back
 
+=back
 
 Inputs: (optional) headline text
 
@@ -3755,10 +3948,18 @@ sub start_funclist {
 
 Adds an item to the list of available functions
 
-Related routines:
+=over
+
+=item Related routines:
+
 =over 4
-start_funclist
-end_funclist
+
+=item start_funclist
+
+=item end_funclist
+
+=back
+
 =back
 
 Inputs: content item with text and link to function
@@ -3781,10 +3982,13 @@ sub add_item_funclist {
 
 End list of available functions
 
-Related routines:
-=over 4
-start_funclist
-add_item_funclist
+=over
+
+=item Related routines:
+
+ start_funclist
+ add_item_funclist
+
 =back
 
 Inputs: ./.
@@ -3817,7 +4021,7 @@ A string that's used as visually highlig
 it's value evaluates to false.
 
 =back
- 
+
 returns: XHTML list as string. 
 
 =back
@@ -3830,7 +4034,7 @@ sub funclist_from_array {
     $args->{legend} ||= mt('Functions');
     return list_from_array( [$args->{legend}, @$items], 
                { listattr => {class => 'LC_funclist'} });
-}   
+}
 
 =pod
 
@@ -3852,8 +4056,8 @@ e.g. a file operation in Authoring Space
 A reference to the array containing text. Details: sub funclist_from_array
 
 =back
- 
-Returns: XHTML div as string.
+
+Returns: XHTML div as string. 
 
 =back