--- loncom/interface/loncommon.pm	2006/07/19 08:36:11	1.431
+++ loncom/interface/loncommon.pm	2007/03/03 01:40:28	1.513
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.431 2006/07/19 08:36:11 albertel Exp $
+# $Id: loncommon.pm,v 1.513 2007/03/03 01:40:28 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -59,12 +59,14 @@ use Apache::lonnet;
 use GDBM_File;
 use POSIX qw(strftime mktime);
 use Apache::lonmenu();
+use Apache::lonenc();
 use Apache::lonlocal;
 use HTML::Entities;
 use Apache::lonhtmlcommon();
 use Apache::loncoursedata();
 use Apache::lontexconvert();
-use LONCAPA;
+use Apache::lonclonecourse();
+use LONCAPA qw(:DEFAULT :match);
 
 my $readit;
 
@@ -156,7 +158,7 @@ BEGIN {
     opendir(DIR,$designdir);
     while ($filename=readdir(DIR)) {
 	if ($filename!~/\.tab$/) { next; }
-	my ($domain)=($filename=~/^(\w+)\./);
+	my ($domain)=($filename=~/^($match_domain)\./);
 	{
 	    my $designfile = $designdir.'/'.$filename;
 	    if ( open (my $fh,"<$designfile") ) {
@@ -256,7 +258,7 @@ of the element the selection from the se
 sub browser_and_searcher_javascript {
     my ($mode)=@_;
     if (!defined($mode)) { $mode='edit'; }
-    my $resurl=&lastresurl();
+    my $resurl=&escape_single(&lastresurl());
     return <<END;
 // <!-- BEGIN LON-CAPA Internal
     var editbrowser = null;
@@ -285,7 +287,7 @@ sub browser_and_searcher_javascript {
 	}
         url += 'element=' + elementname + '';
         var title = 'Browser';
-        var options = 'scrollbars=1,resizable=1,menubar=1,location=1';
+        var options = 'scrollbars=1,resizable=1,menubar=0,toolbar=1,location=1';
         options += ',width=700,height=600';
         editbrowser = open(url,title,options,'1');
         editbrowser.focus();
@@ -306,7 +308,7 @@ sub browser_and_searcher_javascript {
 	}
         url += 'element=' + elementname + '';
         var title = 'Search';
-        var options = 'scrollbars=1,resizable=1,menubar=0';
+        var options = 'scrollbars=1,resizable=1,menubar=0,toolbar=1,location=1';
         options += ',width=700,height=600';
         editsearcher = open(url,title,options,'1');
         editsearcher.focus();
@@ -385,20 +387,27 @@ sub selectstudent_link {
 }
 
 sub coursebrowser_javascript {
-    my ($domainfilter)=@_;
+    my ($domainfilter,$sec_element,$formname)=@_;
     my $crs_or_grp_alert = &mt('Please select the type of LON-CAPA entity - Course or Group - for which you wish to add/modify a user role');
-   return (<<ENDSTDBRW);
+   my $output = '
 <script type="text/javascript" language="Javascript" >
-    var stdeditbrowser;
+    var stdeditbrowser;'."\n";
+   $output .= <<"ENDSTDBRW";
     function opencrsbrowser(formname,uname,udom,desc,extra_element,multflag,crstype) {
         var url = '/adm/pickcourse?';
-        var filter;
-        if (filter != null) {
-           if (filter != '') {
-               url += 'filter='+filter+'&';
-	   }
+        var domainfilter = '';
+        var formid = getFormIdByName(formname);
+        if (formid > -1) {
+            var domid = getIndexByName(formid,udom);
+            if (domid > -1) {
+                if (document.forms[formid].elements[domid].type == 'select-one') {
+                    domainfilter=document.forms[formid].elements[domid].options[document.forms[formid].elements[domid].selectedIndex].value;
+                }
+                if (document.forms[formid].elements[domid].type == 'hidden') {
+                    domainfilter=document.forms[formid].elements[domid].value;
+                }
+            }
         }
-        var domainfilter='$domainfilter';
         if (domainfilter != null) {
            if (domainfilter != '') {
                url += 'domainfilter='+domainfilter+'&';
@@ -407,11 +416,18 @@ sub coursebrowser_javascript {
         url += 'form=' + formname + '&cnumelement='+uname+
 	                            '&cdomelement='+udom+
                                     '&cnameelement='+desc;
-        if (extra_element !=null && extra_element != '' && formname == 'rolechoice') {
-            url += '&roleelement='+extra_element;
-            if (domainfilter == null || domainfilter == '') {
-                url += '&domainfilter='+extra_element;
+        if (extra_element !=null && extra_element != '') {
+            if (formname == 'rolechoice') {
+                url += '&roleelement='+extra_element;
+                if (domainfilter == null || domainfilter == '') {
+                    url += '&domainfilter='+extra_element;
+                }
             }
+            else {
+                if (formname == 'portform') {
+                    url += '&setroles='+extra_element;
+                }
+            }     
         }
         if (multflag !=null && multflag != '') {
             url += '&multiple='+multflag;
@@ -434,14 +450,74 @@ sub coursebrowser_javascript {
         stdeditbrowser = open(url,title,options,'1');
         stdeditbrowser.focus();
     }
-</script>
+
+    function getFormIdByName(formname) {
+        for (var i=0;i<document.forms.length;i++) {
+            if (document.forms[i].name == formname) {
+                return i;
+            }
+        }
+        return -1; 
+    }
+
+    function getIndexByName(formid,item) {
+        for (var i=0;i<document.forms[formid].elements.length;i++) {
+            if (document.forms[formid].elements[i].name == item) {
+                return i;
+            }
+        }
+        return -1;
+    }
 ENDSTDBRW
+    if ($sec_element ne '') {
+        $output .= &setsec_javascript($sec_element,$formname);
+    }
+    $output .= '
+</script>';
+    return $output;
+}
+
+sub setsec_javascript {
+    my ($sec_element,$formname) = @_;
+    my $setsections = qq|
+function setSect(sectionlist) {
+    var sectionsArray = sectionlist.split(",");
+    var numSections = sectionsArray.length;
+    document.$formname.$sec_element.length = 0;
+    if (numSections == 0) {
+        document.$formname.$sec_element.multiple=false;
+        document.$formname.$sec_element.size=1;
+        document.$formname.$sec_element.options[0] = new Option('No existing sections','',false,false)
+    } else {
+        if (numSections == 1) {
+            document.$formname.$sec_element.multiple=false;
+            document.$formname.$sec_element.size=1;
+            document.$formname.$sec_element.options[0] = new Option('Select','',true,true);
+            document.$formname.$sec_element.options[1] = new Option('No section','',false,false)
+            document.$formname.$sec_element.options[2] = new Option(sectionsArray[0],sectionsArray[0],false,false);
+        } else {
+            for (var i=0; i<numSections; i++) {
+                document.$formname.$sec_element.options[i] = new Option(sectionsArray[i],sectionsArray[i],false,false)
+            }
+            document.$formname.$sec_element.multiple=true
+            if (numSections < 3) {
+                document.$formname.$sec_element.size=numSections;
+            } else {
+                document.$formname.$sec_element.size=3;
+            }
+            document.$formname.$sec_element.options[0].selected = false
+        }
+    }
+}
+|;
+    return $setsections;
 }
 
+
 sub selectcourse_link {
    my ($form,$unameele,$udomele,$desc,$extra_element,$multflag,$selecttype)=@_;
-    return "<a href='".'javascript:opencrsbrowser("'.$form.'","'.$unameele.
-        '","'.$udomele.'","'.$desc.'","'.$extra_element.'","'.$multflag.'","'.$selecttype.'");'."'>".&mt('Select [_1]',$selecttype)."</a>";
+   return "<a href='".'javascript:opencrsbrowser("'.$form.'","'.$unameele.
+        '","'.$udomele.'","'.$desc.'","'.$extra_element.'","'.$multflag.'","'.$selecttype.'");'."'>".&mt('Select Course')."</a>";
 }
 
 sub check_uncheck_jscript {
@@ -672,14 +748,14 @@ sub help_open_topic {
     {
 	$template .= 
   "<table bgcolor='#3333AA' cellspacing='1' cellpadding='1' border='0'><tr>".
-  "<td bgcolor='#5555FF'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
+  "<td bgcolor='#5555FF'><a target=\"_top\" href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
     }
 
     # Add the graphic
     my $title = &mt('Online Help');
     my $helpicon=&lonhttpdurl("/adm/help/gif/smallHelp.gif");
     $template .= <<"ENDTEMPLATE";
- <a href="$link" title="$title"><img src="$helpicon" border="0" alt="(Help: $topic)" /></a>
+ <a target="_top" href="$link" title="$title"><img src="$helpicon" border="0" alt="(Help: $topic)" /></a>
 ENDTEMPLATE
     if ($text ne '') { $template.='</td></tr></table>' };
     return $template;
@@ -728,9 +804,7 @@ sub update_help_link {
     my $banner_link = "/adm/helpmenu?page=banner&amp;topic=$topic&amp;component_help=$component_help&amp;faq=$faq&amp;bug=$bug&amp;origurl=$origurl&amp;stamp=$timestamp&amp;stayonpage=$stayOnPage";
     my $output .= <<"ENDOUTPUT";
 <script type="text/javascript">
-// <!-- BEGIN LON-CAPA Internal
 banner_link = '$banner_link';
-// END LON-CAPA Internal -->
 </script>
 ENDOUTPUT
     return $output;
@@ -766,29 +840,35 @@ sub help_open_menu {
 sub top_nav_help {
     my ($text) = @_;
 
-    my ($topic,$component_help,$faq,$bug,$stayOnPage,$width,$height);
-   
-    $text = "" if (not defined $text);
-    $stayOnPage = 0 if (not defined $stayOnPage);
-    if ($env{'browser.interface'} eq 'textual' ||
-        $env{'environment.remote'} eq 'off' ) {
-        $stayOnPage=1;
-    }
-    $width = 620 if (not defined $width);
-    $height = 600 if (not defined $height);
-    my $link='';
+    $text = &mt($text);
+
+    my $stayOnPage = 
+	($env{'browser.interface'}  eq 'textual' ||
+	 $env{'environment.remote'} eq 'off' );
+    my $link=  ($stayOnPage) ? "javascript:helpMenu('display')"
+	                     : "javascript:helpMenu('open')";
+    my $banner_link = &update_help_link(undef,undef,undef,undef,$stayOnPage);
+
     my $title = &mt('Get help');
-    if ($stayOnPage) {
-	$link = "javascript:helpMenu('display')";
-    } else {
-        $link = "javascript:helpMenu('open')";
-    }
+
+    return <<"END";
+$banner_link
+ <a href="$link" title="$title">$text</a>
+END
+}
+
+sub help_menu_js {
+    my ($text) = @_;
+
+    my $stayOnPage = 
+	($env{'browser.interface'}  eq 'textual' ||
+	 $env{'environment.remote'} eq 'off' );
+
+    my $width = 620;
+    my $height = 600;
     my $helptopic=&general_help();
-    my $banner_link = &update_help_link($topic,$component_help,$faq,$bug,$stayOnPage);
     my $details_link = '/adm/help/'.$helptopic.'.hlp';
-    my $template;
     my $nothing=&Apache::lonhtmlcommon::javascript_nothing();
-    my $helpicon=&lonhttpdurl("/adm/lonIcons/helpgateway.gif");
     my $start_page =
         &Apache::loncommon::start_page('Help Menu', undef,
 				       {'frameset'    => 1,
@@ -800,8 +880,8 @@ sub top_nav_help {
         &Apache::loncommon::end_page({'frameset' => 1,
 				      'js_ready' => 1,});
 
-    $template .= <<"ENDTEMPLATE";
- <script type="text/javascript">
+    my $template .= <<"ENDTEMPLATE";
+<script type="text/javascript">
 // <!-- BEGIN LON-CAPA Internal
 // <![CDATA[
 var banner_link = '';
@@ -830,9 +910,7 @@ function writeHelp(caller) {
 }
 // ]]>
 // END LON-CAPA Internal -->
- </script>
-$banner_link
- <a href="$link" title="$title">$text</a>
+</script>
 ENDTEMPLATE
     return $template;
 }
@@ -868,14 +946,14 @@ sub help_open_bug {
     {
 	$template .= 
   "<table bgcolor='#AA3333' cellspacing='1' cellpadding='1' border='0'><tr>".
-  "<td bgcolor='#FF5555'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
+  "<td bgcolor='#FF5555'><a target=\"_top\" href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
     }
 
     # Add the graphic
     my $title = &mt('Report a Bug');
     my $bugicon=&lonhttpdurl("/adm/lonMisc/smallBug.gif");
     $template .= <<"ENDTEMPLATE";
- <a href="$link" title="$title"><img src="$bugicon" border="0" alt="(Bug: $topic)" /></a>
+ <a target="_top" href="$link" title="$title"><img src="$bugicon" border="0" alt="(Bug: $topic)" /></a>
 ENDTEMPLATE
     if ($text ne '') { $template.='</td></tr></table>' };
     return $template;
@@ -913,14 +991,14 @@ sub help_open_faq {
     {
 	$template .= 
   "<table bgcolor='#337733' cellspacing='1' cellpadding='1' border='0'><tr>".
-  "<td bgcolor='#448844'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
+  "<td bgcolor='#448844'><a target=\"_top\" href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
     }
 
     # Add the graphic
     my $title = &mt('View the FAQ');
     my $faqicon=&lonhttpdurl("/adm/lonMisc/smallFAQ.gif");
     $template .= <<"ENDTEMPLATE";
- <a href="$link" title="$title"><img src="$faqicon" border="0" alt="(FAQ: $topic)" /></a>
+ <a target="_top" href="$link" title="$title"><img src="$faqicon" border="0" alt="(FAQ: $topic)" /></a>
 ENDTEMPLATE
     if ($text ne '') { $template.='</td></tr></table>' };
     return $template;
@@ -1187,37 +1265,13 @@ sub create_text_file {
 ##        Home server <option> list generating code          ##
 ###############################################################
 
-=pod
-
-=head1 Home Server option list generating code
-
-=over 4
-
-=item * get_domains()
-
-Returns an array containing each of the domains listed in the hosts.tab
-file.
-
-=cut
-
-#-------------------------------------------
-sub get_domains {
-    # The code below was stolen from "The Perl Cookbook", p 102, 1st ed.
-    my @domains;
-    my %seen;
-    foreach my $dom (sort(values(%Apache::lonnet::hostdom))) {
-	push(@domains,$dom) unless $seen{$dom}++;
-    }
-    return @domains;
-}
-
 # ------------------------------------------
 
 sub domain_select {
     my ($name,$value,$multiple)=@_;
     my %domains=map { 
 	$_ => $_.' '.$Apache::lonnet::domaindescription{$_} 
-    } &get_domains;
+    } &Apache::lonnet::all_domains();
     if ($multiple) {
 	$domains{''}=&mt('Any domain');
 	return &multiple_select_form($name,$value,4,\%domains);
@@ -1237,11 +1291,11 @@ Returns a string containing a <select> e
 
 Args:
   $name - name of the <select> element
-  $value - sclara or array ref of values that should already be selected
+  $value - scalar or array ref of values that should already be selected
   $size - number of rows long the select element is
   $hash - the elements should be 'option' => 'shown text'
           (shown text should already have been &mt())
-  $order - (optional) array ref of the order to show the elments in
+  $order - (optional) array ref of the order to show the elements in
 
 =cut
 
@@ -1257,8 +1311,16 @@ sub multiple_select_form {
         }
     }
     $output.="\n<select name='$name' size='$size' multiple='1'>";
-    my @order = ref($order) ? @$order
-                            : sort(keys(%$hash));
+    my @order;
+    if (ref($order) eq 'ARRAY')  {
+        @order = @{$order};
+    } else {
+        @order = sort(keys(%$hash));
+    }
+    if (exists($$hash{'select_form_order'})) {
+        @order = @{$$hash{'select_form_order'}};
+    }
+        
     foreach my $key (@order) {
         $output.='<option value="'.&HTML::Entities::encode($key,'"<>&').'" ';
         $output.='selected="selected" ' if ($selected{$key});
@@ -1300,6 +1362,24 @@ sub select_form {
     return $selectform;
 }
 
+# For display filters
+
+sub display_filter {
+    if (!$env{'form.show'}) { $env{'form.show'}=10; }
+    if (!$env{'form.displayfilter'}) { $env{'form.displayfilter'}='currentfolder'; }
+    return '<nobr><label>'.&mt('Records [_1]',
+			       &Apache::lonmeta::selectbox('show',$env{'form.show'},undef,
+							   (&mt('all'),10,20,50,100,1000,10000))).
+	   '</label></nobr> <nobr>'.
+           &mt('Filter [_1]',
+	   &select_form($env{'form.displayfilter'},
+			'displayfilter',
+			('currentfolder' => 'Current folder/page',
+			 'containing' => 'Containing phrase',
+			 'none' => 'None'))).
+			 '<input type="text" name="containingphrase" size="30" value="'.&HTML::Entities::encode($env{'form.containingphrase'}).'" /></nobr>';
+}
+
 sub gradeleveldescription {
     my $gradelevel=shift;
     my %gradelevels=(0 => 'Not specified',
@@ -1355,7 +1435,7 @@ selected");
 #-------------------------------------------
 sub select_dom_form {
     my ($defdom,$name,$includeempty) = @_;
-    my @domains = get_domains();
+    my @domains = &Apache::lonnet::all_domains();
     if ($includeempty) { @domains=('',@domains); }
     my $selectdomain = "<select name=\"$name\" size=\"1\">\n";
     foreach my $dom (@domains) {
@@ -1371,30 +1451,6 @@ sub select_dom_form {
 
 =pod
 
-=item * get_library_servers($domain)
-
-Returns a hash which contains keys like '103l3' and values like 
-'kirk.lite.msu.edu'.  All of the keys will be for machines in the
-given $domain.
-
-=cut
-
-#-------------------------------------------
-sub get_library_servers {
-    my $domain = shift;
-    my %library_servers;
-    foreach my $hostid (keys(%Apache::lonnet::libserv)) {
-        if ($Apache::lonnet::hostdom{$hostid} eq $domain) {
-            $library_servers{$hostid} = $Apache::lonnet::hostname{$hostid};
-        }
-    }
-    return %library_servers;
-}
-
-#-------------------------------------------
-
-=pod
-
 =item * home_server_option_list($domain)
 
 returns a string which contains an <option> list to be used in a 
@@ -1405,7 +1461,7 @@ returns a string which contains an <opti
 #-------------------------------------------
 sub home_server_option_list {
     my $domain = shift;
-    my %servers = &get_library_servers($domain);
+    my %servers = &Apache::lonnet::get_servers($domain,'library');
     my $result = '';
     foreach my $hostid (sort(keys(%servers))) {
         $result.=
@@ -2048,6 +2104,9 @@ sub nickname {
 
 sub getnames {
     my ($uname,$udom)=@_;
+    if ($udom eq 'public' && $uname eq 'public') {
+	return ('lastname' => &mt('Public'));
+    }
     my $id=$uname.':'.$udom;
     my ($names,$cached)=&Apache::lonnet::is_cached_new('namescache',$id);
     if ($cached) {
@@ -2061,6 +2120,27 @@ sub getnames {
     }
 }
 
+sub getemails {
+    my ($uname,$udom)=@_;
+    if ($udom eq 'public' && $uname eq 'public') {
+	return;
+    }
+    if (!$udom) { $udom=$env{'user.domain'}; }
+    if (!$uname) { $uname=$env{'user.name'}; }
+    my $id=$uname.':'.$udom;
+    my ($names,$cached)=&Apache::lonnet::is_cached_new('emailscache',$id);
+    if ($cached) {
+	return %{$names};
+    } else {
+	my %loadnames=&Apache::lonnet::get('environment',
+                    			   ['notification','critnotification',
+					    'permanentemail'],
+					   $udom,$uname);
+	&Apache::lonnet::do_cache_new('emailscache',$id,\%loadnames);
+	return %loadnames;
+    }
+}
+
 # ------------------------------------------------------------------ Screenname
 
 =pod
@@ -2085,9 +2165,9 @@ sub screenname {
 sub messagewrapper {
     my ($link,$username,$domain,$subject,$text)=@_;
     return 
-        '<a href="/adm/email?compose=individual&'.
-        'recname='.$username.'&recdom='.$domain.
-	'&subject='.&escape($subject).'&text='.&escape($text).'" '.
+        '<a href="/adm/email?compose=individual&amp;'.
+        'recname='.$username.'&amp;recdom='.$domain.
+	'&amp;subject='.&escape($subject).'&amp;text='.&escape($text).'" '.
         'title="'.&mt('Send message').'">'.$link.'</a>';
 }
 # --------------------------------------------------------------- Notes Wrapper
@@ -2101,8 +2181,11 @@ sub noteswrapper {
 
 sub aboutmewrapper {
     my ($link,$username,$domain,$target)=@_;
+    if (!defined($username)  && !defined($domain)) {
+        return;
+    }
     return '<a href="/adm/'.$domain.'/'.$username.'/aboutme"'.
-	($target?' target="$target"':'').' title="'.&mt('View this users personal page').'">'.$link.'</a>';
+	($target?' target="$target"':'').' title="'.&mt("View this user's personal page").'">'.$link.'</a>';
 }
 
 # ------------------------------------------------------------ Syllabus Wrapper
@@ -2131,7 +2214,22 @@ sub track_student_link {
         $target = '';
     }
     if ($start) { $link.='&amp;start='.$start; }
-    return qq{<a href="$link" title="$title" $target>$linktext</a>};
+    
+    return qq{<a href="$link" title="$title" $target>$linktext</a>}.
+	&help_open_topic('View_recent_activity');
+}
+
+# ===================================================== Display a student photo
+
+
+sub student_image_tag {
+    my ($domain,$user)=@_;
+    my $imgsrc=&Apache::lonnet::studentphoto($domain,$user,'jpg');
+    if (($imgsrc) && ($imgsrc ne '/adm/lonKaputt/lonlogo_broken.gif')) {
+	return '<img src="'.$imgsrc.'" align="right" />';
+    } else {
+	return '';
+    }
 }
 
 =pod
@@ -2342,7 +2440,8 @@ sub preferred_languages {
 	         $env{'course.'.$env{'request.course.id'}.'.languages'}));
     }
     if ($env{'environment.languages'}) {
-	@languages=split(/\s*(\,|\;|\:)\s*/,$env{'environment.languages'});
+	@languages=(@languages,
+		    split(/\s*(\,|\;|\:)\s*/,$env{'environment.languages'}));
     }
     my $browser=(split(/\;/,$ENV{'HTTP_ACCEPT_LANGUAGE'}))[0];
     if ($browser) {
@@ -2565,7 +2664,9 @@ sub get_student_answers {
   }
   $moreenv{'grade_target'}='answer';
   %moreenv=(%form,%moreenv);
-  my $userview=&Apache::lonnet::ssi('/res/'.$feedurl,%moreenv);
+  $feedurl = &Apache::lonnet::clutter($feedurl);
+  &Apache::lonenc::check_encrypt(\$feedurl);
+  my $userview=&Apache::lonnet::ssi($feedurl,%moreenv);
   return $userview;
 }
 
@@ -2584,7 +2685,7 @@ sub submlink {
     my ($text,$uname,$udom,$symb,$target)=@_;
     if (!($uname && $udom)) {
 	(my $cursymb, my $courseid,$udom,$uname)=
-	    &Apache::lonxml::whichuser($symb);
+	    &Apache::lonnet::whichuser($symb);
 	if (!$symb) { $symb=$cursymb; }
     }
     if (!$symb) { $symb=&Apache::lonnet::symbread(); }
@@ -2630,7 +2731,7 @@ sub pprmlink {
     my ($text,$uname,$udom,$symb,$target)=@_;
     if (!($uname && $udom)) {
 	(my $cursymb, my $courseid,$udom,$uname)=
-	    &Apache::lonxml::whichuser($symb);
+	    &Apache::lonnet::whichuser($symb);
 	if (!$symb) { $symb=$cursymb; }
     }
     if (!$symb) { $symb=&Apache::lonnet::symbread(); }
@@ -2679,31 +2780,376 @@ sub maketime {
 #########################################
 
 sub findallcourses {
-    my ($roles) = @_;
+    my ($roles,$uname,$udom) = @_;
     my %roles;
     if (ref($roles)) { %roles = map { $_ => 1 } @{$roles}; }
     my %courses;
     my $now=time;
-    foreach my $key (keys(%env)) {
-	if ( $key=~m{^user\.role\.(\w+)\./(\w+)/(\w+)} ) {
-	    my ($role,$domain,$id) = ($1,$2,$3);
-	    next if ($role eq 'ca' || $role eq 'aa');
-	    next if (%roles && !exists($roles{$role}));
-	    my ($starttime,$endtime)=split(/\./,$env{$key});
-            my $active=1;
-            if ($starttime) {
-		if ($now<$starttime) { $active=0; }
+    if (!defined($uname)) {
+        $uname = $env{'user.name'};
+    }
+    if (!defined($udom)) {
+        $udom = $env{'user.domain'};
+    }
+    if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
+        my %roleshash = &Apache::lonnet::dump('roles',$udom,$uname);
+        if (!%roles) {
+            %roles = (
+                       cc => 1,
+                       in => 1,
+                       ep => 1,
+                       ta => 1,
+                       cr => 1,
+                       st => 1,
+             );
+        }
+        foreach my $entry (keys(%roleshash)) {
+            my ($trole,$tend,$tstart) = split(/_/,$roleshash{$entry});
+            if ($trole =~ /^cr/) { 
+                next if (!exists($roles{$trole}) && !exists($roles{'cr'}));
+            } else {
+                next if (!exists($roles{$trole}));
+            }
+            if ($tend) {
+                next if ($tend < $now);
+            }
+            if ($tstart) {
+                next if ($tstart > $now);
             }
-            if ($endtime) {
-                if ($now>$endtime) { $active=0; }
+            my ($cdom,$cnum,$sec,$cnumpart,$secpart,$role,$realsec);
+            (undef,$cdom,$cnumpart,$secpart) = split(/\//,$entry);
+            if ($secpart eq '') {
+                ($cnum,$role) = split(/_/,$cnumpart); 
+                $sec = 'none';
+                $realsec = '';
+            } else {
+                $cnum = $cnumpart;
+                ($sec,$role) = split(/_/,$secpart);
+                $realsec = $sec;
+            }
+            $courses{$cdom.'_'.$cnum}{$sec} = $trole.'/'.$cdom.'/'.$cnum.'/'.$realsec;
+        }
+    } else {
+        foreach my $key (keys(%env)) {
+	    if ( $key=~m{^user\.role\.(\w+)\./($match_domain)/($match_courseid)/?(\w*)$} ||
+                 $key=~m{^user\.role\.(cr/$match_domain/$match_username/\w+)\./($match_domain)/($match_courseid)/?(\w*)$}) {
+	        my ($role,$cdom,$cnum,$sec) = ($1,$2,$3,$4);
+	        next if ($role eq 'ca' || $role eq 'aa');
+	        next if (%roles && !exists($roles{$role}));
+	        my ($starttime,$endtime)=split(/\./,$env{$key});
+                my $active=1;
+                if ($starttime) {
+		    if ($now<$starttime) { $active=0; }
+                }
+                if ($endtime) {
+                    if ($now>$endtime) { $active=0; }
+                }
+                if ($active) {
+                    if ($sec eq '') {
+                        $sec = 'none';
+                    }
+                    $courses{$cdom.'_'.$cnum}{$sec} = 
+                                     $role.'/'.$cdom.'/'.$cnum.'/'.$sec;
+                }
             }
-            if ($active) { $courses{$domain.'_'.$id}=1; }
         }
     }
-    return keys(%courses);
+    return %courses;
 }
 
 ###############################################
+
+sub blockcheck {
+    my ($setters,$activity,$uname,$udom) = @_;
+
+    if (!defined($udom)) {
+        $udom = $env{'user.domain'};
+    }
+    if (!defined($uname)) {
+        $uname = $env{'user.name'};
+    }
+
+    # If uname and udom are for a course, check for blocks in the course.
+
+    if (&Apache::lonnet::is_course($udom,$uname)) {
+        my %records = &Apache::lonnet::dump('comm_block',$udom,$uname);
+        my ($startblock,$endblock)=&get_blocks($setters,$activity,$udom,$uname);
+        return ($startblock,$endblock);
+    }
+
+    my $startblock = 0;
+    my $endblock = 0;
+    my %live_courses = &findallcourses(undef,$uname,$udom);
+
+    # If uname is for a user, and activity is course-specific, i.e.,
+    # boards, chat or groups, check for blocking in current course only.
+
+    if (($activity eq 'boards' || $activity eq 'chat' ||
+         $activity eq 'groups') && ($env{'request.course.id'})) {
+        foreach my $key (keys(%live_courses)) {
+            if ($key ne $env{'request.course.id'}) {
+                delete($live_courses{$key});
+            }
+        }
+    }
+
+    my $otheruser = 0;
+    my %own_courses;
+    if ((($uname ne $env{'user.name'})) || ($udom ne $env{'user.domain'})) {
+        # Resource belongs to user other than current user.
+        $otheruser = 1;
+        # Gather courses for current user
+        %own_courses = 
+            &findallcourses(undef,$env{'user.name'},$env{'user.domain'});
+    }
+
+    # Gather active course roles - course coordinator, instructor, 
+    # exam proctor, ta, student, or custom role.
+
+    foreach my $course (keys(%live_courses)) {
+        my ($cdom,$cnum);
+        if ((defined($env{'course.'.$course.'.domain'})) && (defined($env{'course.'.$course.'.num'}))) {
+            $cdom = $env{'course.'.$course.'.domain'};
+            $cnum = $env{'course.'.$course.'.num'};
+        } else {
+            ($cdom,$cnum) = split(/_/,$course); 
+        }
+        my $no_ownblock = 0;
+        my $no_userblock = 0;
+        if ($otheruser) {
+            # Check if current user has 'evb' priv for this
+            if (defined($own_courses{$course})) {
+                foreach my $sec (keys(%{$own_courses{$course}})) {
+                    my $checkrole = 'cm./'.$cdom.'/'.$cnum;
+                    if ($sec ne 'none') {
+                        $checkrole .= '/'.$sec;
+                    }
+                    if (&Apache::lonnet::allowed('evb',undef,undef,$checkrole)) {
+                        $no_ownblock = 1;
+                        last;
+                    }
+                }
+            }
+            # if they have 'evb' priv and are currently not playing student
+            next if (($no_ownblock) &&
+                 ($env{'request.role'} !~ m{^st\./$cdom/$cnum}));
+        }
+        foreach my $sec (keys(%{$live_courses{$course}})) {
+            my $checkrole = 'cm./'.$cdom.'/'.$cnum;
+            if ($sec ne 'none') {
+                $checkrole .= '/'.$sec;
+            }
+            if ($otheruser) {
+                # Resource belongs to user other than current user.
+                # Assemble privs for that user, and check for 'evb' priv.
+                my ($trole,$tdom,$tnum,$tsec);
+                my $entry = $live_courses{$course}{$sec};
+                if ($entry =~ /^cr/) {
+                    ($trole,$tdom,$tnum,$tsec) = 
+                      ($entry =~ m|^(cr/$match_domain/$match_username/\w+)\./($match_domain)/($match_username)/?(\w*)$|);
+                } else {
+                    ($trole,$tdom,$tnum,$tsec) = split(/\//,$entry);
+                }
+                my ($spec,$area,$trest,%allroles,%userroles);
+                $area = '/'.$tdom.'/'.$tnum;
+                $trest = $tnum;
+                if ($tsec ne '') {
+                    $area .= '/'.$tsec;
+                    $trest .= '/'.$tsec;
+                }
+                $spec = $trole.'.'.$area;
+                if ($trole =~ /^cr/) {
+                    &Apache::lonnet::custom_roleprivs(\%allroles,$trole,
+                                                      $tdom,$spec,$trest,$area);
+                } else {
+                    &Apache::lonnet::standard_roleprivs(\%allroles,$trole,
+                                                       $tdom,$spec,$trest,$area);
+                }
+                my ($author,$adv) = &Apache::lonnet::set_userprivs(\%userroles,\%allroles);
+                if ($userroles{'user.priv.'.$checkrole} =~ /evb\&([^\:]*)/) {
+                    if ($1) {
+                        $no_userblock = 1;
+                        last;
+                    }
+                }
+            } else {
+                # Resource belongs to current user
+                # Check for 'evb' priv via lonnet::allowed().
+                if (&Apache::lonnet::allowed('evb',undef,undef,$checkrole)) {
+                    $no_ownblock = 1;
+                    last;
+                }
+            }
+        }
+        # if they have the evb priv and are currently not playing student
+        next if (($no_ownblock) &&
+                 ($env{'request.role'} !~ m{^st\./\Q$cdom\E/\Q$cnum\E}));
+        next if ($no_userblock);
+
+        # Retrieve blocking times and identity of blocker for course
+        # of specified user, unless user has 'evb' privilege.
+        
+        my ($start,$end)=&get_blocks($setters,$activity,$cdom,$cnum);
+        if (($start != 0) && 
+            (($startblock == 0) || ($startblock > $start))) {
+            $startblock = $start;
+        }
+        if (($end != 0)  &&
+            (($endblock == 0) || ($endblock < $end))) {
+            $endblock = $end;
+        }
+    }
+    return ($startblock,$endblock);
+}
+
+sub get_blocks {
+    my ($setters,$activity,$cdom,$cnum) = @_;
+    my $startblock = 0;
+    my $endblock = 0;
+    my $course = $cdom.'_'.$cnum;
+    $setters->{$course} = {};
+    $setters->{$course}{'staff'} = [];
+    $setters->{$course}{'times'} = [];
+    my %records = &Apache::lonnet::dump('comm_block',$cdom,$cnum);
+    foreach my $record (keys(%records)) {
+        my ($start,$end) = ($record =~ m/^(\d+)____(\d+)$/);
+        if ($start <= time && $end >= time) {
+            my ($staff_name,$staff_dom,$title,$blocks) =
+                &parse_block_record($records{$record});
+            if ($blocks->{$activity} eq 'on') {
+                push(@{$$setters{$course}{'staff'}},[$staff_name,$staff_dom]);
+                push(@{$$setters{$course}{'times'}}, [$start,$end]);
+                if ( ($startblock == 0) || ($startblock > $start) ) {
+                    $startblock = $start;
+                }
+                if ( ($endblock == 0) || ($endblock < $end) ) {
+                    $endblock = $end;
+                }
+            }
+        }
+    }
+    return ($startblock,$endblock);
+}
+
+sub parse_block_record {
+    my ($record) = @_;
+    my ($setuname,$setudom,$title,$blocks);
+    if (ref($record) eq 'HASH') {
+        ($setuname,$setudom) = split(/:/,$record->{'setter'});
+        $title = &unescape($record->{'event'});
+        $blocks = $record->{'blocks'};
+    } else {
+        my @data = split(/:/,$record,3);
+        if (scalar(@data) eq 2) {
+            $title = $data[1];
+            ($setuname,$setudom) = split(/@/,$data[0]);
+        } else {
+            ($setuname,$setudom,$title) = @data;
+        }
+        $blocks = { 'com' => 'on' };
+    }
+    return ($setuname,$setudom,$title,$blocks);
+}
+
+sub build_block_table {
+    my ($startblock,$endblock,$setters) = @_;
+    my %lt = &Apache::lonlocal::texthash(
+        'cacb' => 'Currently active communication blocks',
+        'cour' => 'Course',
+        'dura' => 'Duration',
+        'blse' => 'Block set by'
+    );
+    my $output;
+    $output = '<br />'.$lt{'cacb'}.':<br />';
+    $output .= &start_data_table();
+    $output .= '
+<tr>
+ <th>'.$lt{'cour'}.'</th>
+ <th>'.$lt{'dura'}.'</th>
+ <th>'.$lt{'blse'}.'</th>
+</tr>
+';
+    foreach my $course (keys(%{$setters})) {
+        my %courseinfo=&Apache::lonnet::coursedescription($course);
+        for (my $i=0; $i<@{$$setters{$course}{staff}}; $i++) {
+            my ($uname,$udom) = @{$$setters{$course}{staff}[$i]};
+            my $fullname = &plainname($uname,$udom);
+            if (defined($env{'user.name'}) && defined($env{'user.domain'})
+                && $env{'user.name'} ne 'public' 
+                && $env{'user.domain'} ne 'public') {
+                $fullname = &aboutmewrapper($fullname,$uname,$udom);
+            }
+            my ($openblock,$closeblock) = @{$$setters{$course}{times}[$i]};
+            $openblock = &Apache::lonlocal::locallocaltime($openblock);
+            $closeblock= &Apache::lonlocal::locallocaltime($closeblock);
+            $output .= &Apache::loncommon::start_data_table_row().
+                       '<td>'.$courseinfo{'description'}.'</td>'.
+                       '<td>'.$openblock.' to '.$closeblock.'</td>'.
+                       '<td>'.$fullname.'</td>'.
+                        &Apache::loncommon::end_data_table_row();
+        }
+    }
+    $output .= &end_data_table();
+}
+
+sub blocking_status {
+    my ($activity,$uname,$udom) = @_;
+    my %setters;
+    my ($blocked,$output,$ownitem,$is_course);
+    my ($startblock,$endblock)=&blockcheck(\%setters,$activity,$uname,$udom);
+    if ($startblock && $endblock) {
+        $blocked = 1;
+        if (wantarray) {
+            my $category;
+            if ($activity eq 'boards') {
+                $category = 'Discussion posts in this course';
+            } elsif ($activity eq 'blogs') {
+                $category = 'Blogs';
+            } elsif ($activity eq 'port') {
+                if (defined($uname) && defined($udom)) {
+                    if ($uname eq $env{'user.name'} &&
+                        $udom eq $env{'user.domain'}) {
+                        $ownitem = 1;
+                    }
+                }
+                $is_course = &Apache::lonnet::is_course($udom,$uname);
+                if ($ownitem) { 
+                    $category = 'Your portfolio files';  
+                } elsif ($is_course) {
+                    my $coursedesc;
+                    foreach my $course (keys(%setters)) {
+                        my %courseinfo =
+                             &Apache::lonnet::coursedescription($course);
+                        $coursedesc = $courseinfo{'description'};
+                    }
+                    $category = "Group files in the course '$coursedesc'";
+                } else {
+                    $category = 'Portfolio files belonging to ';
+                    if ($env{'user.name'} eq 'public' && 
+                        $env{'user.domain'} eq 'public') {
+                        $category .= &plainname($uname,$udom);
+                    } else {
+                        $category .= &aboutmewrapper(&plainname($uname,$udom),$uname,$udom);  
+                    }
+                }
+            } elsif ($activity eq 'groups') {
+                $category = 'Groups in this course';
+            }
+            my $showstart = &Apache::lonlocal::locallocaltime($startblock);
+            my $showend = &Apache::lonlocal::locallocaltime($endblock);
+            $output = '<br />'.&mt('[_1] will be inaccessible between [_2] and [_3] because communication is being blocked.',$category,$showstart,$showend).'<br />';
+            if (!($activity eq 'port' && !($ownitem) && !($is_course))) { 
+                $output .= &build_block_table($startblock,$endblock,\%setters);
+            }
+        }
+    }
+    if (wantarray) {
+        return ($blocked,$output);
+    } else {
+        return $blocked;
+    }
+}
+
 ###############################################
 
 =pod
@@ -2842,6 +3288,9 @@ Inputs:
 =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
+
 =back
 
 Returns: A uniform header for LON-CAPA web pages.  
@@ -2853,9 +3302,9 @@ other decorations will be returned.
 
 sub bodytag {
     my ($title,$function,$addentries,$bodyonly,$domain,$forcereg,$customtitle,
-	$notopbar,$bgcolor,$notitle,$no_inline_link)=@_;
+	$notopbar,$bgcolor,$notitle,$no_inline_link,$args)=@_;
 
-    $title=&mt($title);
+    if (!$args->{'no_auto_mt_title'}) { $title = &mt($title); }
 
     $function = &get_users_function() if (!$function);
     my $img =    &designparm($function.'.img',$domain);
@@ -2868,13 +3317,13 @@ sub bodytag {
                    'alink'   => &designparm($function.'.alink',$domain),
 		   'vlink'   => &designparm($function.'.vlink',$domain),
 		   'link'    => &designparm($function.'.link',$domain),);
-    @$addentries{keys(%design)} = @design{keys(%design)};
+    @design{keys(%$addentries)} = @$addentries{keys(%$addentries)}; 
 
  # role and realm
     my ($role,$realm) = split(/\./,$env{'request.role'},2);
     if ($role  eq 'ca') {
-        my ($rdom,$rname) = ($realm =~ m-^/(\w+)/(\w+)$-);
-        $realm = &plainname($rname,$rdom).':'.$rdom;
+        my ($rdom,$rname) = ($realm =~ m{^/($match_domain)/($match_username)$});
+        $realm = &plainname($rname,$rdom);
     } 
 # realm
     if ($env{'request.course.id'}) {
@@ -2885,6 +3334,7 @@ sub bodytag {
     } else {
         $role = &Apache::lonnet::plaintext($role);
     }
+
     if (!$realm) { $realm='&nbsp;'; }
 # Set messages
     my $messages=&domainlogo($domain);
@@ -2892,7 +3342,7 @@ sub bodytag {
     my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'};
     if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; }
 
-    my $extra_body_attr = &make_attr_string($forcereg,$addentries);
+    my $extra_body_attr = &make_attr_string($forcereg,\%design);
 
 # construct main body tag
     my $bodytag = "<body $extra_body_attr>".
@@ -2913,6 +3363,11 @@ sub bodytag {
     }
 
     my $name = &plainname($env{'user.name'},$env{'user.domain'});
+    if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
+	undef($role);
+    } else {
+	$name = &aboutmewrapper($name,$env{'user.name'},$env{'user.domain'});
+    }
     
     my $roleinfo=(<<ENDROLE);
 <td class="LC_title_bar_who">
@@ -3152,8 +3607,8 @@ sub standard_css {
     my $mono                 = 'monospace';
     my $data_table_head      = $tabbg;
     my $data_table_light     = '#EEEEEE';
-    my $data_table_dark      = '#DDD';
-    my $data_table_darker    = '#CCC';
+    my $data_table_dark      = '#DDDDDD';
+    my $data_table_darker    = '#CCCCCC';
     my $data_table_highlight = '#FFFF00';
     my $mail_new             = '#FFBB77';
     my $mail_new_hover       = '#DD9955';
@@ -3164,15 +3619,28 @@ sub standard_css {
     my $mail_other           = '#99BBBB';
     my $mail_other_hover     = '#669999';
     my $table_header         = '#DDDDDD';
+    my $feedback_link_bg     = '#BBBBBB';
 
     my $border = ($env{'browser.type'} eq 'explorer') ? '0px 2px 0px 2px'
 	                                              : '0px 3px 0px 4px';
+
     return <<END;
 h1, h2, h3, th { font-family: $sans }
 a:focus { color: red; background: yellow } 
-table.thinborder { border-collapse: collapse; }
-table.thinborder tr th {  border-style: solid; border-width: 1px; background: $tabbg;}
-table.thinborder tr td { border-style: solid; border-width: 1px}
+table.thinborder,
+table.LC_optres_prior {
+  border-collapse: collapse;
+}
+table.thinborder tr th {
+  border-style: solid;
+  border-width: 1px;
+  background: $tabbg;
+}
+table.thinborder tr td, 
+table.LC_optres_prior tr td {
+  border-style: solid;
+  border-width: 1px
+}
 
 form, .inline { display: inline; }
 .center { text-align: center; }
@@ -3181,12 +3649,22 @@ form, .inline { display: inline; }
   color: red;
   font-size: larger;
 }
-.LC_warning {
+.LC_warning,
+.LC_diff_removed {
   color: red;
 }
-.LC_success {
+.LC_success,
+.LC_diff_added {
   color: green;
 }
+.LC_icon {
+  border: 0px;
+}
+
+table.LC_pastsubmission {
+  border: 1px solid black;
+  margin: 2px;
+}
 
 table#LC_top_nav, table#LC_menubuttons {
   width: 100%;
@@ -3227,6 +3705,9 @@ table#LC_title_bar td.LC_title_bar_who {
   font: small $sans;
   text-align: right;
 }
+span.LC_metadata {
+    font-family: $sans;
+}
 span.LC_title_bar_title {
   font: bold x-large $sans;
 }
@@ -3262,14 +3743,22 @@ table#LC_top_nav td a, div#LC_top_nav a
 }
 table#LC_top_nav td.LC_top_nav_logo {
   background: $tabbg;
-  text-align: right;
+  text-align: left;
   white-space: nowrap;
-  font-weight: bold;
+  width: 31px;
 }
 table#LC_top_nav td.LC_top_nav_logo img {
-  margin-left: 0.2em;
+  border: 0px;
   vertical-align: bottom;
 }
+table#LC_top_nav td.LC_top_nav_exit,
+table#LC_top_nav td.LC_top_nav_help {
+  width: 2.0em;
+}
+table#LC_top_nav td.LC_top_nav_login {
+  width: 4.0em;
+  text-align: center;
+}
 table.LC_breadcrumbs td, table.LC_docs_path td  {
   background: $tabbg;
   color: $font;
@@ -3310,6 +3799,11 @@ td.LC_menubuttons_img {
   font-weight: bold;
 }
 
+table.LC_aboutme_port {
+  border: 0px;
+  border-collapse: collapse;
+  border-spacing: 0px;
+}
 table.LC_data_table, table.LC_mail_list {
   border: 1px solid #000000;
   border-collapse: separate;
@@ -3318,28 +3812,95 @@ table.LC_data_table, table.LC_mail_list
 .LC_data_table_dense {
   font-size: small;
 }
+table.LC_nested_outer {
+  border: 1px solid #000000;
+  border-collapse: separate;
+  border-spacing: 0px;
+  width: 100%;
+}
+table.LC_nested {
+  border: 0px;
+  border-collapse: separate;
+  border-spacing: 0px;
+  width: 100%;
+}
 table.LC_data_table tr th, table.LC_calendar tr th, table.LC_mail_list tr th {
   font-weight: bold;
   background-color: $data_table_head;
   font-size: smaller;
 }
-table.LC_data_table tr td {
+table.LC_data_table tr td, 
+table.LC_aboutme_port tr td {
   background-color: $data_table_light;
   padding: 2px;
 }
-table.LC_data_table tr.LC_even_row td {
+table.LC_data_table tr.LC_even_row td,
+table.LC_aboutme_port tr.LC_even_row td {
   background-color: $data_table_dark;
 }
 table.LC_data_table tr.LC_data_table_highlight td {
   background-color: $data_table_darker;
 }
-table.LC_data_table tr.LC_empty_row td {
+table.LC_data_table tr.LC_empty_row td,
+table.LC_nested tr.LC_empty_row td {
   background-color: #FFFFFF;
   font-weight: bold;
   font-style: italic;
   text-align: center;
   padding: 8px;
 }
+table.LC_nested tr.LC_empty_row td {
+  padding: 4ex
+}
+table.LC_nested_outer tr th {
+  font-weight: bold;
+  background-color: $data_table_head;
+  font-size: smaller;
+  border-bottom: 1px solid #000000;
+}
+table.LC_nested_outer tr td.LC_subheader {
+  background-color: $data_table_head;
+  font-weight: bold;
+  font-size: small;
+  border-bottom: 1px solid #000000;
+  text-align: right;
+}
+table.LC_nested tr.LC_info_row td {
+  background-color: #CCC;
+  font-weight: bold;
+  font-size: small;
+  text-align: center;
+}
+table.LC_nested tr.LC_info_row td.LC_left_item {
+  text-align: left;
+}
+table.LC_nested td {
+  background-color: #FFF;
+  font-size: small;
+}
+table.LC_nested_outer tr th.LC_right_item,
+table.LC_nested tr.LC_info_row td.LC_right_item,
+table.LC_nested tr.LC_odd_row td.LC_right_item,
+table.LC_nested tr td.LC_right_item {
+  text-align: right;
+}
+
+table.LC_nested tr.LC_odd_row td {
+  background-color: #EEE;
+}
+
+table.LC_createuser {
+}
+
+table.LC_createuser tr.LC_section_row td {
+  font-size: smaller;
+}
+
+table.LC_createuser tr.LC_info_row td  {
+  background-color: #CCC;
+  font-weight: bold;
+  text-align: center;
+}
 
 table.LC_calendar {
   border: 1px solid #000000;
@@ -3383,6 +3944,11 @@ table.LC_mail_list tr.LC_mail_other {
 table.LC_mail_list tr.LC_mail_other:hover {
   background-color: $mail_other_hover;
 }
+table.LC_mail_list tr.LC_mail_even {
+}
+table.LC_mail_list tr.LC_mail_odd {
+}
+
 
 table#LC_portfolio_actions {
   width: auto;
@@ -3439,7 +4005,8 @@ table#LC_browser tr.LC_browser_file_unpu
 table#LC_browser tr.LC_browser_file_obsolete {
   background: #AAAAAA;
 }
-table#LC_browser tr.LC_browser_file_modified {
+table#LC_browser tr.LC_browser_file_modified,
+table#LC_browser tr.LC_browser_file_metamodified {
   background: #FFFF77;
 }
 table#LC_browser tr.LC_browser_folder {
@@ -3626,6 +4193,13 @@ table.LC_descriptive_input td.LC_descrip
   text-align: right;
   font-weight: bold;
 }
+table.LC_feedback_link {
+    background: $feedback_link_bg;
+}
+span.LC_feedback_link {
+    background: $feedback_link_bg;
+    font-size: larger;
+}
 
 END
 }
@@ -3654,6 +4228,8 @@ Inputs: $title - optional title for the
                                domain
             function       -> force usage of a specific rolish color scheme
             bgcolor        -> override the default page bgcolor
+            no_auto_mt_title
+                           -> prevent &mt()ing the title arg
 
 =back
 
@@ -3666,6 +4242,7 @@ sub headtag {
     my $domain   = $args->{'domain'}   || &determinedomain();
     my $bgcolor  = $args->{'bgcolor'}  || &designparm($function.'.pgbg',$domain);
     my $url = join(':',$env{'user.name'},$env{'user.domain'},
+		   $Apache::lonnet::perlvar{'lonVersion'},
 		   #time(),
 		   $env{'environment.color.timestamp'},
 		   $function,$domain,$bgcolor);
@@ -3674,12 +4251,19 @@ sub headtag {
 
     my $result =
 	'<head>'.
-	&font_settings().
-	&Apache::lonhtmlcommon::htmlareaheaders();
+	&font_settings();
 
+    if (!$args->{'frameset'}) {
+	$result .= &Apache::lonhtmlcommon::htmlareaheaders();
+    }
     if ($args->{'force_register'}) {
 	$result .= &Apache::lonmenu::registerurl(1);
     }
+    if (!$args->{'no_nav_bar'} 
+	&& !$args->{'only_body'}
+	&& !$args->{'frameset'}) {
+	$result .= &help_menu_js();
+    }
 
     if (ref($args->{'redirect'})) {
 	my ($time,$url,$inhibit_continue) = @{$args->{'redirect'}};
@@ -3695,8 +4279,8 @@ ADDMETA
     if (!defined($title)) {
 	$title = 'The LearningOnline Network with CAPA';
     }
-    
-    $result .= '<title> LON-CAPA '.&mt($title).'</title>'
+    if (!$args->{'no_auto_mt_title'}) { $title = &mt($title); }
+    $result .= '<title> LON-CAPA '.$title.'</title>'
 	.'<link rel="stylesheet" type="text/css" href="'.$url.'" />'
 	.$head_extra;
     return $result;
@@ -3840,6 +4424,8 @@ Inputs: $title - optional title for the
                   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
+
 =back
 
 =cut
@@ -3849,7 +4435,8 @@ sub start_page {
     #&Apache::lonnet::logthis("start_page ".join(':',caller(0)));
     my %head_args;
     foreach my $arg ('redirect','force_register','domain','function',
-		     'bgcolor') {
+		     'bgcolor','frameset','no_nav_bar','only_body',
+		     'no_auto_mt_title') {
 	if (defined($args->{$arg})) {
 	    $head_args{$arg} = $args->{$arg};
 	}
@@ -3875,7 +4462,8 @@ sub start_page {
 			 $args->{'only_body'},      $args->{'domain'},
 			 $args->{'force_register'}, $args->{'body_title'},
 			 $args->{'no_nav_bar'},     $args->{'bgcolor'},
-			 $args->{'no_title'},       $args->{'no_inline_link'});
+			 $args->{'no_title'},       $args->{'no_inline_link'},
+			 $args);
 	}
     }
 
@@ -3904,6 +4492,11 @@ Inputs:         $args - additional optio
                                  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
 
@@ -4015,6 +4608,13 @@ sub simple_error_page {
 	$css_class = (join(' ',$css_class,$add_class));
 	return  '<tr class="'.$css_class.'">'."\n";;
     }
+    
+    sub continue_data_table_row {
+	my ($add_class) = @_;
+	my $css_class = ($row_count % 2)?'':'LC_even_row';
+	$css_class = (join(' ',$css_class,$add_class));
+	return  '<tr class="'.$css_class.'">'."\n";;
+    }
 
     sub end_data_table_row {
 	return '</tr>'."\n";;
@@ -4320,13 +4920,20 @@ sub get_course_users {
         }
     }
     if ((@{$roles} > 1) || ((@{$roles} == 1) && ($$roles[0] ne "st"))) {
-        my @coursepersonnel = &Apache::lonnet::getkeys('nohist_userroles',$cdom,$cnum);
-        foreach my $person (@coursepersonnel) {
+        my %coursepersonnel = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
+        my $now = time;
+        foreach my $person (sort(keys(%coursepersonnel))) {
             my $match = 0;
             my $secmatch = 0;
+            my $status;
             my ($role,$user,$usec) = ($person =~ /^([^:]*):([^:]+:[^:]+):([^:]*)/);
             $user =~ s/:$//;
-            if (($role) && (grep(/^\Q$role\E$/,@{$roles}))) {
+            my ($end,$start) = split(/:/,$coursepersonnel{$person});
+            if ($end == -1 || $start == -1) {
+                next;
+            }
+            if (($role) && ((grep(/^\Q$role\E$/,@{$roles})) ||
+                (grep(/^cr$/,@{$roles}) && $role =~ /^cr\//))) {
                 my ($uname,$udom) = split(/:/,$user);
                 if ((ref($sections) eq 'ARRAY') && (@{$sections} > 0)) {
                     if (grep(/^all$/,@{$sections})) {
@@ -4348,8 +4955,13 @@ sub get_course_users {
                     $usec = 'none';
                 }
                 if ($uname ne '' && $udom ne '') {
-                    my $status = &check_user_status($udom,$uname,$cdom,$cnum,$role,
-                                                    $usec);
+                    if ($end > 0 && $end < $now) {
+                        $status = 'previous';
+                    } elsif ($start > $now) {
+                        $status = 'future';
+                    } else {
+                        $status = 'active';
+                    }
                     foreach my $type (keys(%{$types})) { 
                         if ($status eq $type) {
                             if (!grep(/^\Q$type\E$/,@{$$users{$role}{$user}})) {
@@ -4374,7 +4986,10 @@ sub get_course_users {
                 my %csettings = &Apache::lonnet::get('environment',['internal.courseowner'],$cdom,$cnum);
                 if ( defined($csettings{'internal.courseowner'}) ) {
                     my $owner = $csettings{'internal.courseowner'};
-                    @{$$users{'ow'}{$owner.':'.$cdom}} = 'any';
+                    if ($owner !~ /^[^:]+:[^:]+$/) {
+                        $owner = $owner.':'.$cdom;
+                    }
+                    @{$$users{'ow'}{$owner}} = 'any';
                     if (defined($userdata) && 
 			!exists($$userdata{$owner.':'.$cdom})) {
 			&get_user_info($cdom,$owner,\%idx,$userdata);
@@ -4402,6 +5017,96 @@ sub get_user_info {
     return;
 }
 
+###############################################
+
+=pod
+
+=item * &get_user_quota()
+
+Retrieves quota assigned for storage of portfolio files for a user  
+
+Incoming parameters:
+1. user's username
+2. user's domain
+
+Returns:
+1. Disk quota (in Mb) assigned to student. 
+
+If a value has been stored in the user's environment, 
+it will return that, otherwise it returns the default
+for users in the domain.
+
+=cut
+
+###############################################
+
+
+sub get_user_quota {
+    my ($uname,$udom) = @_;
+    my $quota;
+    if (!defined($udom)) {
+        $udom = $env{'user.domain'};
+    }
+    if (!defined($uname)) {
+        $uname = $env{'user.name'};
+    }
+    if (($udom eq '' || $uname eq '') ||
+        ($udom eq 'public') && ($uname eq 'public')) {
+        $quota = 0;
+    } else {
+        if ($udom eq $env{'user.domain'} && $uname eq $env{'user.name'}) {
+            $quota = $env{'environment.portfolioquota'};
+        } else {
+            my %userenv = &Apache::lonnet::dump('environment',$udom,$uname);
+            my ($tmp) = keys(%userenv);
+            if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
+                $quota = $userenv{'portfolioquota'};
+            } else {
+                undef(%userenv);
+            }
+        }
+        if ($quota eq '') {
+            $quota = &default_quota($udom);
+        }
+    }
+    return $quota;
+}
+
+###############################################
+
+=pod
+
+=item * &default_quota()
+
+Retrieves default quota assigned for storage of user portfolio files
+
+Incoming parameters:
+1. domain
+
+Returns:
+1. Default disk quota (in Mb) for user portfolios in the domain.
+
+If a value has been stored in the domain's configuration db,
+it will return that, otherwise it returns 20 (for backwards 
+compatibility with domains which have not set up a configuration
+db file; the original statically defined portfolio quota was 20 Mb). 
+
+=cut
+
+###############################################
+
+
+sub default_quota {
+    my ($udom) = @_;
+    my %defaults = &Apache::lonnet::get_dom('configuration',
+                                            ['portfolioquota'],$udom);
+    if ($defaults{'portfolioquota'} ne '') {
+        return $defaults{'portfolioquota'};
+    } else {
+        return '20';
+    }
+}
+
 sub get_secgrprole_info {
     my ($cdom,$cnum,$needroles,$type)  = @_;
     my %sections_count = &get_sections($cdom,$cnum);
@@ -4576,7 +5281,7 @@ sub get_env_multiple {
 
 =pod
 
-=back 
+=back
 
 =head1 CSV Upload/Handling functions
 
@@ -4690,7 +5395,12 @@ sub record_sep {
             $i++;
         }
     } else {
-        my @allfields=split(/\,/,$record);
+        my @allfields;
+        if ($env{'form.upfiletype'} eq 'semisv') {
+            @allfields=split(/;/,$record,-1);
+        } else {
+            @allfields=split(/\,/,$record,-1);
+        }
         my $i=0;
         my $j;
         for ($j=0;$j<=$#allfields;$j++) {
@@ -4728,6 +5438,7 @@ the file type.
 sub upfile_select_html {
     my %Types = (
                  csv   => &mt('CSV (comma separated values, spreadsheet)'),
+                 semisv => &mt('Semicolon separated values'),
                  space => &mt('Space separated'),
                  tab   => &mt('Tabulator separated'),
 #                 xml   => &mt('HTML/XML'),
@@ -5382,16 +6093,19 @@ Returns: both routines return nothing
 #######################################################
 #######################################################
 sub store_course_settings {
+    return &store_settings($env{'request.course.id'},@_);
+}
+
+sub store_settings {
     # save to the environment
     # appenv the same items, just to be safe
-    my $courseid = $env{'request.course.id'};
     my $udom  = $env{'user.domain'};
     my $uname = $env{'user.name'};
-    my ($prefix,$Settings) = @_;
+    my ($context,$prefix,$Settings) = @_;
     my %SaveHash;
     my %AppHash;
     while (my ($setting,$type) = each(%$Settings)) {
-        my $basename = join('.','internal',$courseid,$prefix,$setting);
+        my $basename = join('.','internal',$context,$prefix,$setting);
         my $envname = 'environment.'.$basename;
         if (exists($env{'form.'.$setting})) {
             # Save this value away
@@ -5431,11 +6145,14 @@ sub store_course_settings {
 }
 
 sub restore_course_settings {
-    my $courseid = $env{'request.course.id'};
-    my ($prefix,$Settings) = @_;
+    return &restore_settings($env{'request.course.id'},@_);
+}
+
+sub restore_settings {
+    my ($context,$prefix,$Settings) = @_;
     while (my ($setting,$type) = each(%$Settings)) {
         next if (exists($env{'form.'.$setting}));
-        my $envname = 'environment.internal.'.$courseid.'.'.$prefix.
+        my $envname = 'environment.internal.'.$context.'.'.$prefix.
             '.'.$setting;
         if (exists($env{$envname})) {
             if ($type eq 'scalar') {
@@ -5454,6 +6171,379 @@ sub restore_course_settings {
 ############################################################
 ############################################################
 
+sub commit_customrole {
+    my ($udom,$uname,$url,$three,$four,$five,$start,$end) = @_;
+    my $output = &mt('Assigning custom role').' "'.$five.'" by '.$four.'@'.$three.' in '.$url.
+                         ($start?', '.&mt('starting').' '.localtime($start):'').
+                         ($end?', ending '.localtime($end):'').': <b>'.
+              &Apache::lonnet::assigncustomrole(
+                 $udom,$uname,$url,$three,$four,$five,$end,$start).
+                 '</b><br />';
+    return $output;
+}
+
+sub commit_standardrole {
+    my ($udom,$uname,$url,$three,$start,$end,$one,$two,$sec) = @_;
+    my $output;
+    my $logmsg;
+    if ($three eq 'st') {
+        my $result = &commit_studentrole(\$logmsg,$udom,$uname,$url,$three,$start,$end,$one,$two,$sec);
+        if (($result =~ /^error/) || ($result eq 'not_in_class') || ($result eq 'unknown_course')) {
+            $output = "Error: $result\n"; 
+        } else {
+            $output = &mt('Assigning').' '.$three.' in '.$url.
+               ($start?', '.&mt('starting').' '.localtime($start):'').
+               ($end?', '.&mt('ending').' '.localtime($end):'').
+               ': <b>'.$result.'</b><br />'.
+               &mt('Add to classlist').': <b>ok</b><br />';
+        }
+    } else {
+        $output = &mt('Assigning').' '.$three.' in '.$url.
+               ($start?', '.&mt('starting').' '.localtime($start):'').
+               ($end?', '.&mt('ending').' '.localtime($end):'').': <b>'.
+               &Apache::lonnet::assignrole(
+                   $udom,$uname,$url,$three,$end,$start).
+                   '</b><br />';
+    }
+    return $output;
+}
+
+sub commit_studentrole {
+    my ($logmsg,$udom,$uname,$url,$three,$start,$end,$one,$two,$sec) = @_;
+    my $linefeed =  '<br />'."\n";
+    my $result;
+    if (defined($one) && defined($two)) {
+        my $cid=$one.'_'.$two;
+        my $oldsec=&Apache::lonnet::getsection($udom,$uname,$cid);
+        my $secchange = 0;
+        my $expire_role_result;
+        my $modify_section_result;
+        unless ($oldsec eq '-1') {
+            unless ($sec eq $oldsec) {
+                $secchange = 1;
+                my $uurl='/'.$cid;
+                $uurl=~s/\_/\//g;
+                if ($oldsec) {
+                    $uurl.='/'.$oldsec;
+                }
+                $expire_role_result = &Apache::lonnet::assignrole($udom,$uname,$uurl,'st',time);
+                $result = $expire_role_result;
+            }
+        }
+        if (($expire_role_result eq 'ok') || ($secchange == 0)) {
+            $modify_section_result = &Apache::lonnet::modify_student_enrollment($udom,$uname,undef,undef,undef,undef,undef,$sec,$end,$start,'','',$cid);
+            if ($modify_section_result =~ /^ok/) {
+                if ($secchange == 1) {
+                    $$logmsg .= "Section for $uname switched from old section: $oldsec to new section: $sec".$linefeed;
+                } elsif ($oldsec eq '-1') {
+                    $$logmsg .= "New student role for $uname in section $sec in course $cid".$linefeed;
+                } else {
+                    $$logmsg .= "Student $uname assigned to unchanged section $sec in course $cid".$linefeed;
+                }
+            } else {
+                $$logmsg .= "Error when attempting section change for $uname from old section $oldsec to new section: $sec in course $cid -error: $modify_section_result".$linefeed;
+            }
+            $result = $modify_section_result;
+        } elsif ($secchange == 1) {
+            $$logmsg .= "Error when attempting to expire role for $uname in old section $oldsec in course $cid -error: $expire_role_result".$linefeed;
+        }
+    } else {
+        $$logmsg .= "Incomplete course id defined.  Addition of user $uname from domain $udom to course $one\_$two, section $sec not completed.$linefeed";
+        $result = "error: incomplete course id\n";
+    }
+    return $result;
+}
+
+############################################################
+############################################################
+
+sub construct_course {
+    my ($args,$logmsg,$courseid,$crsudom,$crsunum,$udom,$uname) = @_;
+    my $outcome;
+
+#
+# Open course
+#
+    my $crstype = lc($args->{'crstype'});
+    my %cenv=();
+    $$courseid=&Apache::lonnet::createcourse($args->{'course_domain'},
+                                             $args->{'cdescr'},
+                                             $args->{'curl'},
+                                             $args->{'course_home'},
+                                             $args->{'nonstandard'},
+                                             $args->{'crscode'},
+                                             $args->{'ccuname'}.':'.
+                                             $args->{'ccdomain'},
+                                             $args->{'crstype'});
+
+    # Note: The testing routines depend on this being output; see 
+    # Utils::Course. This needs to at least be output as a comment
+    # if anyone ever decides to not show this, and Utils::Course::new
+    # will need to be suitably modified.
+    $outcome .= &mt('New LON-CAPA [_1] ID: [_2]<br />',$crstype,$$courseid);
+#
+# Check if created correctly
+#
+    ($$crsudom,$$crsunum)= &LONCAPA::split_courseid($$courseid);
+    my $crsuhome=&Apache::lonnet::homeserver($$crsunum,$$crsudom);
+    $outcome .= &mt('Created on').': '.$crsuhome.'<br>';
+#
+# Are we cloning?
+#
+    my $cloneid='';
+    if (($args->{'clonecourse'}) && ($args->{'clonedomain'})) {
+	$cloneid='/'.$args->{'clonedomain'}.'/'.$args->{'clonecourse'};
+        my ($clonecrsudom,$clonecrsunum)= &LONCAPA::split_courseid($cloneid);
+	my $clonehome=&Apache::lonnet::homeserver($clonecrsunum,$clonecrsudom);
+	if ($clonehome eq 'no_host') {
+	    $outcome .=
+    '<br /><font color="red">'.&mt('Attempting to clone non-existing [_1]',$crstype).' '.$cloneid.'</font>';
+	} else {
+	    $outcome .= 
+    '<br /><font color="green">'.&mt('Cloning [_1] from [_2]',$crstype,$clonehome).'</font>';
+	    my %oldcenv=&Apache::lonnet::dump('environment',$$crsudom,$$crsunum);
+# Copy all files
+	    &Apache::lonclonecourse::copycoursefiles($cloneid,$$courseid);
+# Restore URL
+	    $cenv{'url'}=$oldcenv{'url'};
+# Restore title
+	    $cenv{'description'}=$oldcenv{'description'};
+# restore grading mode
+	    if (defined($oldcenv{'grading'})) {
+		$cenv{'grading'}=$oldcenv{'grading'};
+	    }
+# Mark as cloned
+	    $cenv{'clonedfrom'}=$cloneid;
+	    delete($cenv{'default_enrollment_start_date'});
+	    delete($cenv{'default_enrollment_end_date'});
+	}
+    }
+#
+# Set environment (will override cloned, if existing)
+#
+    my @sections = ();
+    my @xlists = ();
+    if ($args->{'crstype'}) {
+        $cenv{'type'}=$args->{'crstype'};
+    }
+    if ($args->{'crsid'}) {
+        $cenv{'courseid'}=$args->{'crsid'};
+    }
+    if ($args->{'crscode'}) {
+        $cenv{'internal.coursecode'}=$args->{'crscode'};
+    }
+    if ($args->{'crsquota'} ne '') {
+        $cenv{'internal.coursequota'}=$args->{'crsquota'};
+    } else {
+        $cenv{'internal.coursequota'}=$args->{'crsquota'} = 20;
+    }
+    if ($args->{'ccuname'}) {
+        $cenv{'internal.courseowner'} = $args->{'ccuname'}.
+                                        ':'.$args->{'ccdomain'};
+    } else {
+        $cenv{'internal.courseowner'} = $args->{'curruser'};
+    }
+
+    my @badclasses = (); # Used to accumulate sections/crosslistings that did not pass classlist access check for course owner.
+    if ($args->{'crssections'}) {
+        $cenv{'internal.sectionnums'} = '';
+        if ($args->{'crssections'} =~ m/,/) {
+            @sections = split/,/,$args->{'crssections'};
+        } else {
+            $sections[0] = $args->{'crssections'};
+        }
+        if (@sections > 0) {
+            foreach my $item (@sections) {
+                my ($sec,$gp) = split/:/,$item;
+                my $class = $args->{'crscode'}.$sec;
+                my $addcheck = &Apache::lonnet::auto_new_course($$crsunum,$$crsudom,$class,$cenv{'internal.courseowner'});
+                $cenv{'internal.sectionnums'} .= $item.',';
+                unless ($addcheck eq 'ok') {
+                    push @badclasses, $class;
+                }
+            }
+            $cenv{'internal.sectionnums'} =~ s/,$//;
+        }
+    }
+# do not hide course coordinator from staff listing, 
+# even if privileged
+    $cenv{'nothideprivileged'}=$args->{'ccuname'}.':'.$args->{'ccdomain'};
+# add crosslistings
+    if ($args->{'crsxlist'}) {
+        $cenv{'internal.crosslistings'}='';
+        if ($args->{'crsxlist'} =~ m/,/) {
+            @xlists = split/,/,$args->{'crsxlist'};
+        } else {
+            $xlists[0] = $args->{'crsxlist'};
+        }
+        if (@xlists > 0) {
+            foreach my $item (@xlists) {
+                my ($xl,$gp) = split/:/,$item;
+                my $addcheck =  &Apache::lonnet::auto_new_course($$crsunum,$$crsudom,$xl,$cenv{'internal.courseowner'});
+                $cenv{'internal.crosslistings'} .= $item.',';
+                unless ($addcheck eq 'ok') {
+                    push @badclasses, $xl;
+                }
+            }
+            $cenv{'internal.crosslistings'} =~ s/,$//;
+        }
+    }
+    if ($args->{'autoadds'}) {
+        $cenv{'internal.autoadds'}=$args->{'autoadds'};
+    }
+    if ($args->{'autodrops'}) {
+        $cenv{'internal.autodrops'}=$args->{'autodrops'};
+    }
+# check for notification of enrollment changes
+    my @notified = ();
+    if ($args->{'notify_owner'}) {
+        if ($args->{'ccuname'} ne '') {
+            push(@notified,$args->{'ccuname'}.':'.$args->{'ccdomain'});
+        }
+    }
+    if ($args->{'notify_dc'}) {
+        if ($uname ne '') { 
+            push(@notified,$uname.'@'.$udom);
+        }
+    }
+    if (@notified > 0) {
+        my $notifylist;
+        if (@notified > 1) {
+            $notifylist = join(',',@notified);
+        } else {
+            $notifylist = $notified[0];
+        }
+        $cenv{'internal.notifylist'} = $notifylist;
+    }
+    if (@badclasses > 0) {
+        my %lt=&Apache::lonlocal::texthash(
+                'tclb' => 'The courses listed below were included as sections or crosslistings affiliated with your new LON-CAPA course.  However, if automated course roster updates are enabled for this class, these particular sections/crosslistings will not contribute towards enrollment, because the user identified as the course owner for this LON-CAPA course',
+                'dnhr' => 'does not have rights to access enrollment in these classes',
+                'adby' => 'as determined by the policies of your institution on access to official classlists'
+        );
+        $outcome .= '<font color="red">'.$lt{'tclb'}.' ('.$cenv{'internal.courseowner'}.') - '.$lt{'dnhr'}.' ('.$lt{'adby'}.').<br /><ul>'."\n";
+        foreach (@badclasses) {
+            $outcome .= "<li>$_</li>\n";
+        }
+        $outcome .= "</ul><br /><br /></font>\n";
+    }
+    if ($args->{'no_end_date'}) {
+        $args->{'endaccess'} = 0;
+    }
+    $cenv{'internal.autostart'}=$args->{'enrollstart'};
+    $cenv{'internal.autoend'}=$args->{'enrollend'};
+    $cenv{'default_enrollment_start_date'}=$args->{'startaccess'};
+    $cenv{'default_enrollment_end_date'}=$args->{'endaccess'};
+    if ($args->{'showphotos'}) {
+      $cenv{'internal.showphotos'}=$args->{'showphotos'};
+    }
+    $cenv{'internal.authtype'} = $args->{'authtype'};
+    $cenv{'internal.autharg'} = $args->{'autharg'}; 
+    if ( ($cenv{'internal.authtype'} =~ /^krb/) && ($cenv{'internal.autoadds'} == 1)) {
+        if (! defined($cenv{'internal.autharg'}) || $cenv{'internal.autharg'}  eq '') {
+            $outcome .= '<font color="red" size="+1">'.
+                      &mt('As you did not include the default Kerberos domain to be used for authentication in this class, the institutional data used by the automated enrollment process must include the Kerberos domain for each new student').'</font></p>';
+        }
+    }
+    if (($args->{'ccdomain'}) && ($args->{'ccuname'})) {
+       if ($args->{'setpolicy'}) {
+           $cenv{'policy.email'}=$args->{'ccuname'}.':'.$args->{'ccdomain'};
+       }
+       if ($args->{'setcontent'}) {
+           $cenv{'question.email'}=$args->{'ccuname'}.':'.$args->{'ccdomain'};
+       }
+    }
+    if ($args->{'reshome'}) {
+	$cenv{'reshome'}=$args->{'reshome'}.'/';
+	$cenv{'reshome'}=~s/\/+$/\//;
+    }
+#
+# course has keyed access
+#
+    if ($args->{'setkeys'}) {
+       $cenv{'keyaccess'}='yes';
+    }
+# if specified, key authority is not course, but user
+# only active if keyaccess is yes
+    if ($args->{'keyauth'}) {
+	my ($user,$domain) = split(':',$args->{'keyauth'});
+	$user = &LONCAPA::clean_username($user);
+	$domain = &LONCAPA::clean_username($domain);
+	if ($user ne '' && $domain ne '') {
+	    $cenv{'keyauth'}=$user.':'.$domain;
+	}
+    }
+
+    if ($args->{'disresdis'}) {
+        $cenv{'pch.roles.denied'}='st';
+    }
+    if ($args->{'disablechat'}) {
+        $cenv{'plc.roles.denied'}='st';
+    }
+
+    # Record we've not yet viewed the Course Initialization Helper for this 
+    # course
+    $cenv{'course.helper.not.run'} = 1;
+    #
+    # Use new Randomseed
+    #
+    $cenv{'rndseed'}=&Apache::lonnet::latest_rnd_algorithm_id();;
+    $cenv{'receiptalg'}=&Apache::lonnet::latest_receipt_algorithm_id();;
+    #
+    # The encryption code and receipt prefix for this course
+    #
+    $cenv{'internal.encseed'}=$Apache::lonnet::perlvar{'lonReceipt'}.$$.time.int(rand(9999));
+    $cenv{'internal.encpref'}=100+int(9*rand(99));
+    #
+    # By default, use standard grading
+    if (!defined($cenv{'grading'})) { $cenv{'grading'} = 'standard'; }
+
+    $outcome .= ('<br />'.&mt('Setting environment').': '.                 
+          &Apache::lonnet::put('environment',\%cenv,$$crsudom,$$crsunum).'<br>');
+#
+# Open all assignments
+#
+    if ($args->{'openall'}) {
+       my $storeunder=$$crsudom.'_'.$$crsunum.'.0.opendate';
+       my %storecontent = ($storeunder         => time,
+                           $storeunder.'.type' => 'date_start');
+       
+       $outcome .= &mt('Opening all assignments').': '.&Apache::lonnet::cput
+                 ('resourcedata',\%storecontent,$$crsudom,$$crsunum).'<br>';
+   }
+#
+# Set first page
+#
+    unless (($args->{'nonstandard'}) || ($args->{'firstres'} eq 'blank')
+	    || ($cloneid)) {
+	use LONCAPA::map;
+	$outcome .= &mt('Setting first resource').': ';
+
+	my $map = '/uploaded/'.$$crsudom.'/'.$$crsunum.'/default.sequence';
+        my ($errtext,$fatal)=&LONCAPA::map::mapread($map);
+
+        $outcome .= ($fatal?$errtext:'read ok').' - ';
+        my $title; my $url;
+        if ($args->{'firstres'} eq 'syl') {
+	    $title='Syllabus';
+            $url='/public/'.$$crsudom.'/'.$$crsunum.'/syllabus';
+        } else {
+            $title='Navigate Contents';
+            $url='/adm/navmaps';
+        }
+
+        $LONCAPA::map::resources[1]=$title.':'.$url.':false:start:res';
+	(my $outtext,$errtext) = &LONCAPA::map::storemap($map,1);
+
+	if ($errtext) { $fatal=2; }
+        $outcome .= ($fatal?$errtext:'write ok').'<br />';
+    }
+    return $outcome;
+}
+
+############################################################
+############################################################
+
 sub course_type {
     my ($cid) = @_;
     if (!defined($cid)) {
@@ -5477,7 +6567,7 @@ sub group_term {
 
 sub icon {
     my ($file)=@_;
-    my $curfext = (split(/\./,$file))[-1];
+    my $curfext = lc((split(/\./,$file))[-1]);
     my $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/unknown.gif';
     my $embstyle = &Apache::loncommon::fileembstyle($curfext);
     if (!(!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn')) {
@@ -5530,6 +6620,171 @@ sub escape_url {
     my $lastitem = &escape(pop(@urlslices));
     return join('/',@urlslices).'/'.$lastitem;
 }
+
+# -------------------------------------------------------- Initliaze user login
+sub init_user_environment {
+    my ($r, $username, $domain, $authhost, $form, $args) = @_;
+    my $lonids=$Apache::lonnet::perlvar{'lonIDsDir'};
+
+    my $public=($username eq 'public' && $domain eq 'public');
+
+# See if old ID present, if so, remove
+
+    my ($filename,$cookie,$userroles);
+    my $now=time;
+
+    if ($public) {
+	my $max_public=100;
+	my $oldest;
+	my $oldest_time=0;
+	for(my $next=1;$next<=$max_public;$next++) {
+	    if (-e $lonids."/publicuser_$next.id") {
+		my $mtime=(stat($lonids."/publicuser_$next.id"))[9];
+		if ($mtime<$oldest_time || !$oldest_time) {
+		    $oldest_time=$mtime;
+		    $oldest=$next;
+		}
+	    } else {
+		$cookie="publicuser_$next";
+		last;
+	    }
+	}
+	if (!$cookie) { $cookie="publicuser_$oldest"; }
+    } else {
+	# if this isn't a robot, kill any existing non-robot sessions
+	if (!$args->{'robot'}) {
+	    opendir(DIR,$lonids);
+	    while ($filename=readdir(DIR)) {
+		if ($filename=~/^$username\_\d+\_$domain\_$authhost\.id$/) {
+		    unlink($lonids.'/'.$filename);
+		}
+	    }
+	    closedir(DIR);
+	}
+# Give them a new cookie
+	my $id = ($args->{'robot'} ? 'robot'.$args->{'robot'}
+		                   : $now);
+	$cookie="$username\_$id\_$domain\_$authhost";
+    
+# Initialize roles
+
+	$userroles=&Apache::lonnet::rolesinit($domain,$username,$authhost);
+    }
+# ------------------------------------ Check browser type and MathML capability
+
+    my ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
+        $clientunicode,$clientos) = &decode_user_agent($r);
+
+# -------------------------------------- Any accessibility options to remember?
+    if (($form->{'interface'}) && ($form->{'remember'} eq 'true')) {
+	foreach my $option ('imagesuppress','appletsuppress',
+			    'embedsuppress','fontenhance','blackwhite') {
+	    if ($form->{$option} eq 'true') {
+		&Apache::lonnet::put('environment',{$option => 'on'},
+				     $domain,$username);
+	    } else {
+		&Apache::lonnet::del('environment',[$option],
+				     $domain,$username);
+	    }
+	}
+    }
+# ------------------------------------------------------------- Get 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
+    foreach my $option ('imagesuppress','appletsuppress',
+			'embedsuppress','fontenhance','blackwhite',
+			'interface','localpath','localres') {
+	$form->{$option}=~s/[\n\r\=]//gs;
+    }
+# --------------------------------------------------------- Write first profile
+
+    {
+	my %initial_env = 
+	    ("user.name"          => $username,
+	     "user.domain"        => $domain,
+	     "user.home"          => $authhost,
+	     "browser.type"       => $clientbrowser,
+	     "browser.version"    => $clientversion,
+	     "browser.mathml"     => $clientmathml,
+	     "browser.unicode"    => $clientunicode,
+	     "browser.os"         => $clientos,
+	     "server.domain"      => $Apache::lonnet::perlvar{'lonDefDomain'},
+	     "request.course.fn"  => '',
+	     "request.course.uri" => '',
+	     "request.course.sec" => '',
+	     "request.role"       => 'cm',
+	     "request.role.adv"   => $env{'user.adv'},
+	     "request.host"       => $ENV{'REMOTE_ADDR'},);
+
+        if ($form->{'localpath'}) {
+	    $initial_env{"browser.localpath"}  = $form->{'localpath'};
+	    $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'};
+	    foreach my $option ('imagesuppress','appletsuppress',
+				'embedsuppress','fontenhance','blackwhite') {
+		if (($form->{$option} eq 'true') ||
+		    ($userenv{$option} eq 'on')) {
+		    $initial_env{"browser.$option"} = "on";
+		}
+	    }
+	}
+
+	$env{'user.environment'} = "$lonids/$cookie.id";
+	
+	if (tie(my %disk_env,'GDBM_File',"$lonids/$cookie.id",
+		 &GDBM_WRCREAT(),0640)) {
+	    &_add_to_env(\%disk_env,\%initial_env);
+	    &_add_to_env(\%disk_env,\%userenv,'environment.');
+	    &_add_to_env(\%disk_env,$userroles);
+	    if (ref($args->{'extra_env'})) {
+		&_add_to_env(\%disk_env,$args->{'extra_env'});
+	    }
+	    untie(%disk_env);
+	} else {
+	    &Apache::lonnet::logthis("<font color=\"blue\">WARNING: ".
+			   'Could not create environment storage in lonauth: '.$!.'</font>');
+	    return 'error: '.$!;
+	}
+    }
+    $env{'request.role'}='cm';
+    $env{'request.role.adv'}=$env{'user.adv'};
+    $env{'browser.type'}=$clientbrowser;
+
+    return $cookie;
+
+}
+
+sub _add_to_env {
+    my ($idf,$env_data,$prefix) = @_;
+    while (my ($key,$value) = each(%$env_data)) {
+	$idf->{$prefix.$key} = $value;
+	$env{$prefix.$key}   = $value;
+    }
+}
+
+
 =pod
 
 =back