--- loncom/interface/loncommon.pm	2010/12/25 17:35:53	1.948.2.18
+++ loncom/interface/loncommon.pm	2011/02/26 12:54:52	1.1001
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.948.2.18 2010/12/25 17:35:53 raeburn Exp $
+# $Id: loncommon.pm,v 1.1001 2011/02/26 12:54:52 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -409,7 +409,7 @@ sub studentbrowser_javascript {
 <script type="text/javascript" language="Javascript">
 // <![CDATA[
     var stdeditbrowser;
-    function openstdbrowser(formname,uname,udom,roleflag,ignorefilter,courseadvonly) {
+    function openstdbrowser(formname,uname,udom,clicker,roleflag,ignorefilter,courseadvonly) {
         var url = '/adm/pickstudent?';
         var filter;
 	if (!ignorefilter) {
@@ -421,7 +421,8 @@ sub studentbrowser_javascript {
 	   }
         }
         url += 'form=' + formname + '&unameelement='+uname+
-                                    '&udomelement='+udom;
+                                    '&udomelement='+udom+
+                                    '&clicker='+clicker;
 	if (roleflag) { url+="&roles=1"; }
         if (courseadvonly) { url+="&courseadvonly=1"; }
         var title = 'Student_Browser';
@@ -436,14 +437,17 @@ ENDSTDBRW
 }
 
 sub selectstudent_link {
-   my ($form,$unameele,$udomele,$courseadvonly)=@_;
-   my $callargs = "'".$form."','".$unameele."','".$udomele."'";
+   my ($form,$unameele,$udomele,$courseadvonly,$clickerid)=@_;
+   my $callargs = "'".&Apache::lonhtmlcommon::entity_encode($form)."','".
+                      &Apache::lonhtmlcommon::entity_encode($unameele)."','".
+                      &Apache::lonhtmlcommon::entity_encode($udomele)."'";
    if ($env{'request.course.id'}) {  
        if (!&Apache::lonnet::allowed('srm',$env{'request.course.id'})
 	   && !&Apache::lonnet::allowed('srm',$env{'request.course.id'}.
 					'/'.$env{'request.course.sec'})) {
 	   return '';
        }
+       $callargs.=",'".&Apache::lonhtmlcommon::entity_encode($clickerid)."'";
        if ($courseadvonly)  {
            $callargs .= ",'',1,1";
        }
@@ -1090,7 +1094,11 @@ a new window using Javascript. (Default
 
 $width and $height are optional numerical parameters that will
 override the width and height of the popped up window, which may
-be useful for certain help topics with big pictures included. 
+be useful for certain help topics with big pictures included.
+
+$imgid is the id of the img tag used for the help icon. This may be
+used in a javascript call to switch the image src.  See 
+lonhtmlcommon::htmlareaselectactive() for an example.
 
 =cut
 
@@ -1130,9 +1138,9 @@ sub help_open_topic {
     $template.=' <a target="_top" href="'.$link.'" title="'.$title.'">'
               .'<img src="'.$helpicon.'" border="0"'
               .' alt="'.&mt('Help: [_1]',$topic).'"'
-              .' title="'.$title.'" style="vertical-align:middle;"'.$imgid
+              .' title="'.$title.'" style="vertical-align:middle;"'.$imgid 
               .' /></a>';
-    if ($text ne "") {
+    if ($text ne "") {	
         $template.='</span>';
     }
     return $template;
@@ -1205,12 +1213,7 @@ ENDOUTPUT
 sub help_open_menu {
     my ($topic,$component_help,$faq,$bug,$stayOnPage,$width,$height,$text) 
 	= @_;    
-    $stayOnPage = 0 if (not defined $stayOnPage);
-    # only use pop-up help (stayOnPage == 0)
-    # if environment.remote is on (using remote control UI)
-    if ($env{'environment.remote'} eq 'off' ) {
-        $stayOnPage=1;
-    }
+    $stayOnPage = 1;
     my $output;
     if ($component_help) {
 	if (!$text) {
@@ -1231,8 +1234,8 @@ sub help_open_menu {
 sub top_nav_help {
     my ($text) = @_;
     $text = &mt($text);
-    my $stay_on_page = 
-	($env{'environment.remote'} eq 'off' );
+    my $stay_on_page = 1;
+
     my $link = ($stay_on_page) ? "javascript:helpMenu('display')"
 	                     : "javascript:helpMenu('open')";
     my $banner_link = &update_help_link(undef,undef,undef,undef,$stay_on_page);
@@ -1247,10 +1250,7 @@ END
 
 sub help_menu_js {
     my ($text) = @_;
-
-    my $stayOnPage = 
-	($env{'environment.remote'} eq 'off' );
-
+    my $stayOnPage = 1;
     my $width = 620;
     my $height = 600;
     my $helptopic=&general_help();
@@ -1307,10 +1307,7 @@ sub help_open_bug {
     unless ($env{'user.adv'}) { return ''; }
     unless ($Apache::lonnet::perlvar{'BugzillaHost'}) { return ''; }
     $text = "" if (not defined $text);
-    $stayOnPage = 0 if (not defined $stayOnPage);
-    if ($env{'environment.remote'} eq 'off' ) {
 	$stayOnPage=1;
-    }
     $width = 600 if (not defined $width);
     $height = 600 if (not defined $height);
 
@@ -1351,10 +1348,7 @@ sub help_open_faq {
     unless ($env{'user.adv'}) { return ''; }
     unless ($Apache::lonnet::perlvar{'FAQHost'}) { return ''; }
     $text = "" if (not defined $text);
-    $stayOnPage = 0 if (not defined $stayOnPage);
-    if ($env{'environment.remote'} eq 'off' ) {
 	$stayOnPage=1;
-    }
     $width = 350 if (not defined $width);
     $height = 400 if (not defined $height);
 
@@ -1870,7 +1864,7 @@ sub multiple_select_form {
 Returns a string containing a <select name='$name' size='1'> form to 
 allow a user to select options from a ref to a hash containing:
 option_name => displayed text. An optional $onchange can include
-a javascript onchange item, e.g., onchange="this.form.submit();"
+a javascript onchange item, e.g., onchange="this.form.submit();"  
 
 See lonrights.pm for an example invocation and use.
 
@@ -1886,9 +1880,9 @@ sub select_form {
     my $selectform = "<select name=\"$name\" size=\"1\"$onchange>\n";
     my @keys;
     if (exists($hashref->{'select_form_order'})) {
-        @keys=@{$hashref->{'select_form_order'}};
+	@keys=@{$hashref->{'select_form_order'}};
     } else {
-        @keys=sort(keys(%{$hashref}));
+	@keys=sort(keys(%{$hashref}));
     }
     foreach my $key (@keys) {
         $selectform.=
@@ -2287,7 +2281,7 @@ function set_auth_radio_buttons(newvalue
     var numauthchoices = currentform.login.length;
     if (typeof numauthchoices  == "undefined") {
         return;
-    }
+    } 
     var i=0;
     while (i < numauthchoices) {
         if (currentform.login[i].value == newvalue) { break; }
@@ -3260,7 +3254,7 @@ sub filemimetype {
 sub filecategoryselect {
     my ($name,$value)=@_;
     return &select_form($value,$name,
-			{'' => &mt('Any category'), map { $_,$_ } sort(keys(%category_extensions))});
+                        {'' => &mt('Any category'), map { $_,$_ } sort(keys(%category_extensions))});
 }
 
 =pod
@@ -3570,23 +3564,23 @@ sub format_previous_attempt_value {
         my @anskeys = sort(keys(%answers));
         if (@anskeys == 1) {
             my $answer = $answers{$anskeys[0]};
-            if ($answer =~ m{\Q\0\E}) {
-                $answer =~ s{\Q\0\E}{, }g;
+            if ($answer =~ m{\0}) {
+                $answer =~ s{\0}{,}g;
             }
             my $tag_internal_answer_name = 'INTERNAL';
             if ($anskeys[0] eq $tag_internal_answer_name) {
-                $value = $answer;
+                $value = $answer; 
             } else {
                 $value = $anskeys[0].'='.$answer;
             }
         } else {
             foreach my $ans (@anskeys) {
                 my $answer = $answers{$ans};
-                if ($answer =~ m{\Q\0\E}) {
-                    $answer =~ s{\Q\0\E}{, }g;
+                if ($answer =~ m{\0}) {
+                    $answer =~ s{\0}{,}g;
                 }
                 $value .=  $ans.'='.$answer.'<br />';;
-            }
+            } 
         }
     } else {
 	$value = &unescape($value);
@@ -4496,7 +4490,7 @@ Returns: HTML div with $content
 sub head_subbox {
     my ($content)=@_;
     my $output =
-        '<div id="LC_head_subbox">'
+        '<div class="LC_head_subbox">'
        .$content
        .'</div>'
 }
@@ -4592,9 +4586,6 @@ Inputs:
 
 =item * $bgcolor, used to override the bgcolor on a webpage to a specific value
 
-=item * $no_inline_link, if true and in remote mode, don't show the 
-         'Switch To Inline Menu' link
-
 =item * $args, optional argument valid values are
             no_auto_mt_title -> prevents &mt()ing the title arg
             inherit_jsmath -> when creating popup window in a page,
@@ -4612,7 +4603,7 @@ other decorations will be returned.
 
 sub bodytag {
     my ($title,$function,$addentries,$bodyonly,$domain,$forcereg,
-        $no_nav_bar,$bgcolor,$no_inline_link,$args)=@_;
+        $no_nav_bar,$bgcolor,$args)=@_;
 
     my $public;
     if ((($env{'user.name'} eq 'public') && ($env{'user.domain'} eq 'public'))
@@ -4654,8 +4645,6 @@ sub bodytag {
     }
 
     if (!$realm) { $realm='&nbsp;'; }
-# Set messages
-    my $messages=&domainlogo($domain);
 
     my $extra_body_attr = &make_attr_string($forcereg,\%design);
 
@@ -4673,7 +4662,7 @@ sub bodytag {
     } else {
 	$name = &aboutmewrapper($name,$env{'user.name'},$env{'user.domain'});
     }
-
+    
     my $titleinfo = '<h1>'.$title.'</h1>';
     #
     # Extra info if you are the DC
@@ -4689,8 +4678,6 @@ sub bodytag {
     $role = '<span class="LC_nobreak">('.$role.')</span>' if $role;
     &get_unprocessed_cgi($ENV{'QUERY_STRING'}, ['inhibitmenu']);
 
-    if ($env{'environment.remote'} eq 'off') {
-        # No Remote
         if ($no_nav_bar || $env{'form.inhibitmenu'} eq 'yes') { 
             return $bodytag; 
         } 
@@ -4732,7 +4719,7 @@ sub bodytag {
             $bodytag .= Apache::lonmenu::serverform();
             $bodytag .= Apache::lonhtmlcommon::scripttag('', 'end');
             if ($env{'request.state'} eq 'construct') {
-                $bodytag .= &Apache::lonmenu::innerregister($forcereg,'',
+                $bodytag .= &Apache::lonmenu::innerregister($forcereg,
                                 $args->{'bread_crumbs'});
             } elsif ($forcereg) { 
                 $bodytag .= &Apache::lonmenu::innerregister($forcereg);
@@ -4745,40 +4732,6 @@ sub bodytag {
         }
 
         return $bodytag;
-    }
-
-#
-# Top frame rendering, Remote is up
-#
-
-    my $imgsrc = $img;
-    if ($img =~ /^\/adm/) {
-        $imgsrc = &lonhttpdurl($img);
-    }
-    my $upperleft='<img src="'.$imgsrc.'" alt="'.$function.'" />';
-
-    # Explicit link to get inline menu
-    my $menu= ($no_inline_link?''
-	       :'<a href="/adm/remote?action=collapse" target="_top">'.&mt('Switch to Inline Menu Mode').'</a>');
-
-    if ($dc_info) {
-        $dc_info = qq|<span class="LC_cusr_subheading">($dc_info)</span>|;
-    }
-
-    $bodytag .= qq|<div id="LC_nav_bar">$name $role</div>
-            <ol class="LC_primary_menu LC_right">
-                <li>$menu</li>
-            </ol><div id="LC_realm"> $realm $dc_info</div>| unless $env{'form.inhibitmenu'};
-    return(<<ENDBODY);
-$bodytag
-<table id="LC_title_bar" class="LC_with_remote">
-<tr><td>$upperleft</td>
-    <td>$messages&nbsp;</td>
-</tr>
-<tr><td>$titleinfo $dc_info $menu</td>
-</tr>
-</table>
-ENDBODY
 }
 
 sub dc_courseid_toggle {
@@ -4810,22 +4763,8 @@ sub make_attr_string {
 		delete($attr_ref->{$key});
 	    }
 	}
-	$attr_ref->{'onload'}  =
-	    &Apache::lonmenu::loadevents().  $on_load;
-	$attr_ref->{'onunload'}=
-	    &Apache::lonmenu::unloadevents().$on_unload;
-    }
-
-# Accessibility font enhance
-    if ($env{'browser.fontenhance'} eq 'on') {
-	my $style;
-	foreach my $key (keys(%{$attr_ref})) {
-	    if (lc($key) eq 'style') {
-		$style.=$attr_ref->{$key}.';';
-		delete($attr_ref->{$key});
-	    }
-	}
-	$attr_ref->{'style'}=$style.'; font-size: x-large;';
+	$attr_ref->{'onload'}  = $on_load;
+	$attr_ref->{'onunload'}= $on_unload;
     }
 
     my $attr_string;
@@ -4923,6 +4862,7 @@ sub standard_css {
       $env{'browser.type'} eq 'safari'     ) ? '0 2px 0 2px'
                                              : '0 3px 0 4px';
 
+
     return <<END;
 
 /* needed for iframe to allow 100% height in FF */
@@ -5153,19 +5093,16 @@ td.LC_table_cell_checkbox {
   overflow: hidden;
   margin: 0;
   padding: 0;
+  text-align: left;
 }
 
-/* Preliminary fix to hide breadcrumbs inside remote control window */
-#LC_remote #LC_breadcrumbs {
-  display:none;
-}
-
-#LC_head_subbox {
+.LC_head_subbox {
   clear:both;
   background: #F8F8F8; /* $sidebg; */
   border: 1px solid $sidebg;
   margin: 0 0 10px 0;      
   padding: 3px;
+  text-align: left;
 }
 
 .LC_fontsize_medium {
@@ -5700,16 +5637,6 @@ table.LC_group_priv td {
   padding: 0;
 }
 
-table.LC_notify_front_page {
-  background: white;
-  border: 1px solid black;
-  padding: 8px;
-}
-
-table.LC_notify_front_page td {
-  padding: 8px;
-}
-
 .LC_navbuttons {
   margin: 2ex 0ex 2ex 0ex;
 }
@@ -6143,6 +6070,7 @@ fieldset > legend {
 
 #LC_nav_bar {
   float: left;
+  background-color: $pgbg_or_bgcolor;
   margin: 0 0 2px 0;
 }
 
@@ -6151,6 +6079,7 @@ fieldset > legend {
   padding: 0;
   font-weight: bold;
   text-align: center;
+  background-color: $pgbg_or_bgcolor;
 }
 
 #LC_nav_bar em {
@@ -6158,19 +6087,10 @@ fieldset > legend {
   font-style: normal;
 }
 
-/* Preliminary fix to hide nav_bar inside bookmarks window */
-#LC_bookmarks #LC_nav_bar {
-  display:none;
-}
-
 ol.LC_primary_menu {
   float: right;
   margin: 0;
-}
-
-span.LC_new_message{
-  font-weight:bold;
-  color: darkred;
+  background-color: $pgbg_or_bgcolor;
 }
 
 ol#LC_PathBreadcrumbs {
@@ -6193,6 +6113,11 @@ ol.LC_primary_menu a {
   text-decoration: none;
 }
 
+ol.LC_primary_menu a.LC_new_message {
+  font-weight:bold;
+  color: darkred;
+}
+
 ol.LC_docs_parameters {
   margin-left: 0;
   padding: 0;
@@ -6225,6 +6150,7 @@ ul#LC_secondary_menu {
   padding: 0;
   margin: 0;
   width: 100%;
+  text-align: left;
 }
 
 ul#LC_secondary_menu li {
@@ -6334,7 +6260,7 @@ ul.LC_TabContentBigger li a {
   text-align: center;
   display: block;
   text-decoration: none;
-  outline: none;
+  outline: none;  
 }
 
 ul.LC_TabContentBigger li.active a {
@@ -6358,9 +6284,9 @@ ul.LC_TabContentBigger li.active b {
   background:url('/adm/lonIcons/tabbgright.gif') right top no-repeat;
   color:$font;
   border: 0;
-  cursor:default;
 }
 
+
 ul.LC_CourseBreadcrumbs {
   background: $sidebg;
   line-height: 32px;
@@ -6529,14 +6455,6 @@ a#LC_content_toolbar_firsthomework {
   background-image:url(/res/adm/pages/open-first-problem.gif);
 }
 
-a#LC_content_toolbar_launchnav {
-  background-image:url(/res/adm/pages/start-navigation.gif);
-}
-
-a#LC_content_toolbar_closenav {
-  background-image:url(/res/adm/pages/close-navigation.gif);
-}
-
 a#LC_content_toolbar_everything {
   background-image:url(/res/adm/pages/show-all.gif);
 }
@@ -6627,6 +6545,10 @@ ul.LC_funclist li {
   padding: 0px 4px
 }
 
+.LC_hidden {
+  display: none;
+}
+
 END
 }
 
@@ -6678,8 +6600,8 @@ sub headtag {
     if (!$args->{'frameset'}) {
 	$result .= &Apache::lonhtmlcommon::htmlareaheaders();
     }
-    if ($args->{'force_register'}) {
-	$result .= &Apache::lonmenu::registerurl(1);
+    if ($args->{'force_register'} && $env{'request.noversionuri'} !~ m{^/res/adm/pages/}) {
+        $result .= Apache::lonxml::display_title();
     }
     if (!$args->{'no_nav_bar'} 
 	&& !$args->{'only_body'}
@@ -6705,7 +6627,7 @@ ADDMETA
     $result .= '<title> LON-CAPA '.$title.'</title>'
 	.'<link rel="stylesheet" type="text/css" href="'.$url.'" />'
 	.$head_extra;
-    return $result;
+    return $result.'</head>';
 }
 
 =pod
@@ -6758,43 +6680,6 @@ sub xml_begin {
 
 =pod
 
-=item * &endheadtag()
-
-Returns a uniform </head> for LON-CAPA web pages.
-
-Inputs: none
-
-=cut
-
-sub endheadtag {
-    return '</head>';
-}
-
-=pod
-
-=item * &head()
-
-Returns a uniform complete <head>..</head> section for LON-CAPA web pages.
-
-Inputs:
-
-=over 4
-
-$title - optional title for the page
-
-$head_extra - optional extra HTML to put inside the <head>
-
-=back
-
-=cut
-
-sub head {
-    my ($title,$head_extra,$args) = @_;
-    return &headtag($title,$head_extra,$args).&endheadtag();
-}
-
-=pod
-
 =item * &start_page()
 
 Returns a complete <html> .. <body> section for LON-CAPA web pages.
@@ -6832,8 +6717,6 @@ $args - additional optional args support
              skip_phases    -> hash ref of 
                                     head -> skip the <html><head> generation
                                     body -> skip all <body> generation
-             no_inline_link -> if true and in remote mode, don't show the 
-                                    'Switch To Inline Menu' link
              no_auto_mt_title -> prevent &mt()ing the title arg
              inherit_jsmath -> when creating popup window in a page,
                                     should it have jsmath forced on by the
@@ -6850,6 +6733,14 @@ $args - additional optional args support
 sub start_page {
     my ($title,$head_extra,$args) = @_;
     #&Apache::lonnet::logthis("start_page ".join(':',caller(0)));
+#SD
+#I don't see why we copy certain elements of %$args to %head_args
+#head args is passed to headtag() and this routine only reads those
+#keys that are needed. There doesn't happen any writes or any processing
+#of other keys.
+#proposal: just pass $args to headtag instead of \%head_args and delete 
+#marked lines
+#<- MARK
     my %head_args;
     foreach my $arg ('redirect','force_register','domain','function',
 		     'bgcolor','frameset','no_nav_bar','only_body',
@@ -6858,13 +6749,16 @@ sub start_page {
 	    $head_args{$arg} = $args->{$arg};
 	}
     }
+#MARK ->
 
     $env{'internal.start_page'}++;
     my $result;
+
     if (! exists($args->{'skip_phases'}{'head'}) ) {
-	$result.=
-	    &xml_begin().
-	    &headtag($title,$head_extra,\%head_args).&endheadtag();
+        $result .= 
+                  &xml_begin() . &headtag($title,$head_extra,\%head_args);
+#replace prev line by
+#                 &xml_begin() . &headtag($title, $head_extra, $args);
     }
     
     if (! exists($args->{'skip_phases'}{'body'}) ) {
@@ -6878,8 +6772,7 @@ sub start_page {
                          $args->{'function'},       $args->{'add_entries'},
                          $args->{'only_body'},      $args->{'domain'},
                          $args->{'force_register'}, $args->{'no_nav_bar'},
-                         $args->{'bgcolor'},        $args->{'no_inline_link'},
-                         $args);
+                         $args->{'bgcolor'},        $args);
         }
     }
 
@@ -6895,14 +6788,10 @@ sub start_page {
     #            $result .= &build_functionlist();
     #}
 
-    # Don't add anything more if only_body wanted
-    return $result if $args->{'only_body'};
+    # Don't add anything more if only_body wanted or in const space
+    return $result if    $args->{'only_body'} 
+                      || $env{'request.state'} eq 'construct';
 
-    #Breadcrumbs for Construction Space provided by &bodytag. 
-    if (($env{'environment.remote'} eq 'off') && ($env{'request.state'} eq 'construct')) {
-        return $result;
-    }
- 
     #Breadcrumbs
     if (exists($args->{'bread_crumbs'}) or exists($args->{'bread_crumbs_component'})) {
 		&Apache::lonhtmlcommon::clear_breadcrumbs();
@@ -6923,28 +6812,6 @@ sub start_page {
     return $result;
 }
 
-
-=pod
-
-=item * &head()
-
-Returns a complete </body></html> section for LON-CAPA web pages.
-
-Inputs:         $args - additional optional args supported are:
-                 js_ready     -> return a string ready for being used in 
-                                 a javascript writeln
-                 html_encode  -> return a string ready for being used in 
-                                 a html attribute
-                 frameset     -> if true will start with a <frameset>
-                                 rather than <body>
-                 dicsussion   -> if true will get discussion from
-                                  lonxml::xmlend
-                                 (you can pass the target and parser arguments
-                                  through optional 'target' and 'parser' args
-                                  to this routine)
-
-=cut
-
 sub end_page {
     my ($args) = @_;
     $env{'internal.end_page'}++;
@@ -7019,6 +6886,19 @@ sub validate_page {
     }
 }
 
+
+sub start_scrollbox {
+    my ($outerwidth,$width,$height)=@_;
+    unless ($outerwidth) { $outerwidth='520px'; }
+    unless ($width) { $width='500px'; }
+    unless ($height) { $height='200px'; }
+    return "<table style='width: $outerwidth; border: 1px solid black;'><tr><td style='width: $width;' bgcolor='#FFFFFF'><div style='overflow:auto; width:$width; height: $height;'>";
+}
+
+sub end_scrollbox {
+    return '</td></tr></table>';
+}
+
 sub simple_error_page {
     my ($r,$title,$msg) = @_;
     my $page =
@@ -7048,28 +6928,30 @@ sub simple_error_page {
     sub start_data_table {
 	my ($add_class) = @_;
 	my $css_class = (join(' ','LC_data_table',$add_class));
-        &start_data_table_count();
+	&start_data_table_count();
 	return '<table class="'.$css_class.'">'."\n";
     }
 
     sub end_data_table {
-        &end_data_table_count();
+	&end_data_table_count();
 	return '</table>'."\n";;
     }
 
     sub start_data_table_row {
-	my ($add_class) = @_;
+	my ($add_class, $id) = @_;
 	$row_count[0]++;
 	my $css_class = ($row_count[0] % 2)?'LC_odd_row':'LC_even_row';
 	$css_class = (join(' ',$css_class,$add_class)) unless ($add_class eq '');
-	return  '<tr class="'.$css_class.'">'."\n";;
+        $id = (' id="'.$id.'"') unless ($id eq '');
+        return  '<tr class="'.$css_class.'"'.$id.'>'."\n";
     }
     
     sub continue_data_table_row {
-	my ($add_class) = @_;
+	my ($add_class, $id) = @_;
 	my $css_class = ($row_count[0] % 2)?'LC_odd_row':'LC_even_row';
-	$css_class = (join(' ',$css_class,$add_class)) unless ($add_class eq '');;
-	return  '<tr class="'.$css_class.'">'."\n";;
+	$css_class = (join(' ',$css_class,$add_class)) unless ($add_class eq '');
+        $id = (' id="'.$id.'"') unless ($id eq '');
+        return  '<tr class="'.$css_class.'"'.$id.'>'."\n";
     }
 
     sub end_data_table_row {
@@ -7816,7 +7698,7 @@ sub get_secgrprole_info {
 }
 
 sub user_picker {
-    my ($dom,$srch,$forcenewuser,$caller,$cancreate,$usertype) = @_;
+    my ($dom,$srch,$forcenewuser,$caller,$cancreate,$usertype,$context) = @_;
     my $currdom = $dom;
     my %curr_selected = (
                         srchin => 'dom',
@@ -7907,10 +7789,15 @@ sub user_picker {
     $srchtypesel .= "\n  </select>\n";
 
     my ($newuserscript,$new_user_create);
-
+    my $context_dom = $env{'request.role.domain'};
+    if ($context eq 'requestcrs') {
+        if ($env{'form.coursedom'} ne '') { 
+            $context_dom = $env{'form.coursedom'};
+        }
+    }
     if ($forcenewuser) {
         if (ref($srch) eq 'HASH') {
-            if ($srch->{'srchby'} eq 'uname' && $srch->{'srchtype'} eq 'exact' && $srch->{'srchin'} eq 'dom' && $srch->{'srchdomain'} eq $env{'request.role.domain'}) {
+            if ($srch->{'srchby'} eq 'uname' && $srch->{'srchtype'} eq 'exact' && $srch->{'srchin'} eq 'dom' && $srch->{'srchdomain'} eq $context_dom) {
                 if ($cancreate) {
                     $new_user_create = '<p> <input type="submit" name="forcenew" value="'.&HTML::Entities::encode(&mt('Make new user "[_1]"',$srchterm),'<>&"').'" onclick="javascript:setSearch(\'1\','.$caller.');" /> </p>';
                 } else {
@@ -7949,7 +7836,7 @@ function setSearch(createnew,callingForm
             }
         }
         for (var i=0; i<callingForm.srchdomain.length; i++) {
-            if (callingForm.srchdomain.options[i].value == '$env{'request.role.domain'}') {
+            if (callingForm.srchdomain.options[i].value == '$context_dom') {
                 callingForm.srchdomain.selectedIndex = i;
             }
         }
@@ -8492,7 +8379,7 @@ sub ask_for_embedded_content {
         $url .= $current_path;
         $getpropath = 1;
     } elsif (($actionurl eq '/adm/upload') || ($actionurl eq '/adm/testbank') ||
-             ($actionurl eq '/adm/imsimport')) {
+             ($actionurl eq '/adm/imsimport')) { 
         ($uname,my $rest) = ($args->{'current_path'} =~ m{/priv/($match_username)/?(.*)$});
         $url = '/home/'.$uname.'/public_html/';
         $toplevel = $url;
@@ -8543,7 +8430,7 @@ sub ask_for_embedded_content {
     }
     foreach my $path (keys(%subdependencies)) {
         my %currsubfile;
-        if (($actionurl eq '/adm/portfolio') || ($actionurl eq '/adm/coursegrp_portfolio')) {
+        if (($actionurl eq '/adm/portfolio') || ($actionurl eq '/adm/coursegrp_portfolio')) { 
             my @subdir_list = &Apache::lonnet::dirlist($url.$path,$udom,$uname,$getpropath);
             foreach my $line (@subdir_list) {
                 my ($file_name,$rest) = split(/\&/,$line,2);
@@ -8651,7 +8538,7 @@ sub ask_for_embedded_content {
     } elsif ($applies) {
         $output = '<b>'.&mt('Referenced files').'</b>:<br />';
         if ($applies > 1) {
-            $output .=
+            $output .=  
                 &mt('No files need to be uploaded, as one of the following applies to each reference:').'<ul>';
             if ($numremref) {
                 $output .= '<li>'.&mt('reference is to a URL which points to another server').'</li>'."\n";
@@ -8681,7 +8568,7 @@ sub ask_for_embedded_content {
                                                   $embed_file,\%mapping,
                                                   $allfiles,$codebase);
             } else {
-                $pathchange_output .=
+                $pathchange_output .= 
                     &start_data_table_row().
                     '<td><input type ="checkbox" name="namechange" value="'.
                     $chgcount.'" checked="checked" /></td>'.
@@ -8700,7 +8587,7 @@ sub ask_for_embedded_content {
             $output .= '<input type ="hidden" name="number_pathchange_items" value="'.
                        $numpathchg.'" />'."\n";
         }
-        if (($actionurl eq '/adm/upload') || ($actionurl eq '/adm/testbank') ||
+        if (($actionurl eq '/adm/upload') || ($actionurl eq '/adm/testbank') || 
             ($actionurl eq '/adm/imsimport')) {
             $output .= '<input type="hidden" name="phase" value="three" />'."\n";
         } elsif ($actionurl eq '/adm/portfolio' || $actionurl eq '/adm/coursegrp_portfolio') {
@@ -8712,8 +8599,8 @@ sub ask_for_embedded_content {
         my %pathchange = ();
         $output .= &modify_html_form('pathchange',$actionurl,$state,\%pathchange,$pathchange_output);
         if (($actionurl eq '/adm/portfolio') || ($actionurl eq '/adm/coursegrp_portfolio')) {
-            $output .= '<p>'.&mt('or').'</p>';
-        }
+            $output .= '<p>'.&mt('or').'</p>'; 
+        } 
     }
     return ($output,$num,$numpathchg);
 }
@@ -8728,7 +8615,7 @@ sub embedded_file_element {
     }
     $output .= '<input name="embedded_orig_'.$num.'" type="hidden" value="'.
                &escape($embed_file).'" />';
-    unless (($context eq 'upload_embedded') &&
+    unless (($context eq 'upload_embedded') && 
             ($mapping->{$embed_file} eq $embed_file)) {
         $output .='
         <input name="embedded_ref_'.$num.'" type="hidden" value="'.&escape($mapping->{$embed_file}).'" />';
@@ -8829,7 +8716,7 @@ sub upload_embedded {
                     next;
                 } else {
                     $output .= &mt('Uploaded [_1]','<span class="LC_filename">'.
-                               $path.$fname.'</span>').'<br />'; 
+                               $path.$fname.'</span>').'<br />';     
                 }
             }
         } elsif ($context eq 'coursedoc') {
@@ -8936,7 +8823,7 @@ sub modify_html_form {
                     '<input type="hidden" name="embedded_orig_'.$i.'" value="'.
                     &escape($env{'form.embedded_orig_'.$i}).'" /></td>'.
                     &end_data_table_row();
-            }
+            } 
         }
     } else {
         $modifyform = $pathchgtable;
@@ -8987,7 +8874,7 @@ sub modify_html_refs {
         $content = &Apache::lonnet::getfile($container);
         return if ($content eq '-1');
     } else {
-        return unless ($container =~ /^\Q$dir_root\E/);
+        return unless ($container =~ /^\Q$dir_root\E/); 
         if (open(my $fh,"<$container")) {
             $content = join('', <$fh>);
             close($fh);
@@ -8999,7 +8886,7 @@ sub modify_html_refs {
     my $mm = new File::MMagic;
     my $mime_type = $mm->checktype_contents($content);
     if ($mime_type eq 'text/html') {
-        my $parse_result =
+        my $parse_result = 
             &Apache::lonnet::extract_embedded_items($container,\%allfiles,
                                                     \%codebase,\$content);
         if ($parse_result eq 'ok') {
@@ -9032,7 +8919,7 @@ sub modify_html_refs {
                         my ($fname) = ($container =~ m{/([^/]+)$});
                         $output = '<p>'.&mt('Updated [quant,_1,reference] in [_2].',
                                             $count,'<span class="LC_filename">'.
-                                            $fname.'</span>').'</p>';
+                                            $fname.'</span>').'</p>'; 
                     } else {
                          $output = '<p class="LC_error">'.
                                    &mt('Error: update failed for: [_1].',
@@ -9084,10 +8971,10 @@ sub check_for_upload {
     my $filesize = length($env{'form.'.$element});
     if (!$filesize) {
         my $msg = '<span class="LC_error">'.
-                  &mt('Unable to upload [_1]. (size = [_2] bytes)',
+                  &mt('Unable to upload [_1]. (size = [_2] bytes)', 
                       '<span class="LC_filename">'.$fname.'</span>',
                       $filesize).'<br />'.
-                  &mt('Either the file you uploaded was empty, or your web browser was unable to read its contents.').'<br />';
+                  &mt('Either the file you attempted to upload was empty, or your web browser was unable to read its contents.').'<br />';
                   '</span>';
         return ('zero_bytes',$msg);
     }
@@ -9097,6 +8984,11 @@ sub check_for_upload {
                                             $getpropath);
     my $found_file = 0;
     my $locked_file = 0;
+    my @lockers;
+    my $navmap;
+    if ($env{'request.course.id'}) {
+        $navmap = Apache::lonnavmaps::navmap->new();
+    }
     foreach my $line (@dir_list) {
         my ($file_name,$rest)=split(/\&/,$line,2);
         if ($file_name eq $fname){
@@ -9105,8 +8997,28 @@ sub check_for_upload {
                 $file_name = $group.$file_name;
             }
             $found_file = 1;
-            if (&Apache::lonnet::is_locked($file_name,$udom,$uname) eq 'true') {
-                $locked_file = 1;
+            if (&Apache::lonnet::is_locked($file_name,$udom,$uname,\@lockers) eq 'true') {
+                foreach my $lock (@lockers) {
+                    if (ref($lock) eq 'ARRAY') {
+                        my ($symb,$crsid) = @{$lock};
+                        if ($crsid eq $env{'request.course.id'}) {
+                            if (ref($navmap)) {
+                                my $res = $navmap->getBySymb($symb);
+                                foreach my $part (@{$res->parts()}) { 
+                                    my ($slot_status,$slot_time,$slot_name)=$res->check_for_slot($part);
+                                    unless (($slot_status == $res->RESERVED) ||
+                                            ($slot_status == $res->RESERVED_LOCATION)) {
+                                        $locked_file = 1;
+                                    }
+                                }
+                            } else {
+                                $locked_file = 1;
+                            }
+                        } else {
+                            $locked_file = 1;
+                        }
+                    }
+                }
             } else {
                 my @info = split(/\&/,$rest);
                 my $currsize = $info[6]/1000;
@@ -11109,6 +11021,8 @@ sub construct_course {
 ############################################################
 ############################################################
 
+#SD
+# only Community and Course, or anything else?
 sub course_type {
     my ($cid) = @_;
     if (!defined($cid)) {
@@ -11274,15 +11188,12 @@ sub init_user_environment {
     my %userenv = &Apache::lonnet::dump('environment',$domain,$username);
     my ($tmp) = keys(%userenv);
     if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
-	# default remote control to off
-	if ($userenv{'remote'} ne 'on') { $userenv{'remote'} = 'off'; }
     } else {
 	undef(%userenv);
     }
     if (($userenv{'interface'}) && (!$form->{'interface'})) {
 	$form->{'interface'}=$userenv{'interface'};
     }
-    $env{'environment.remote'}=$userenv{'remote'};
     if ($userenv{'texengine'} eq 'ttm') { $clientmathml=1; }
 
 # --------------- Do not trust query string to be put directly into environment
@@ -11314,14 +11225,12 @@ sub init_user_environment {
 	    $initial_env{"browser.localres"}   = $form->{'localres'};
         }
 	
-	if ($public) {
-	    $initial_env{"environment.remote"} = "off";
-	}
 	if ($form->{'interface'}) {
 	    $form->{'interface'}=~s/\W//gs;
 	    $initial_env{"browser.interface"} = $form->{'interface'};
 	    $env{'browser.interface'}=$form->{'interface'};
 	}
+
         my %is_adv = ( is_adv => $env{'user.adv'} );
         my %domdef = &Apache::lonnet::get_domain_defaults($domain);