--- loncom/interface/lonwhatsnew.pm	2010/08/09 23:39:43	1.98.2.2
+++ loncom/interface/lonwhatsnew.pm	2024/09/11 05:20:52	1.130
@@ -1,5 +1,7 @@
+# The LearningOnline Network
+# What's New in a course
 #
-# $Id: lonwhatsnew.pm,v 1.98.2.2 2010/08/09 23:39:43 raeburn Exp $
+# $Id: lonwhatsnew.pm,v 1.130 2024/09/11 05:20:52 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -62,17 +64,37 @@ sub handler {
     my $command = $env{'form.command'};
     my $refpage = $env{'form.refpage'};
 
-    my %checkallowed = ( coursenormalmail => 1,
-			 coursecritmail => 1, );
+    my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+    my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
+
+    my ($isadhoc,%checkallowed);
+
+    if ($env{'request.role'} =~ m{^(cc|co)/}) {
+        my $rolecode = $1;
+        if ($env{"environment.internal.$cdom.$crs.$env{'request.role'}.adhoc"}) {
+            $isadhoc = 1;
+        }
+    } elsif ($env{'request.role'} =~ m{^cr/$cdom/$cdom\-domainconfig/(\w+)\./}) {
+        my $rolename = $1;
+        if ($env{"environment.internal.$cdom.$crs.cr/$cdom/$cdom-domainconfig/$rolename.adhoc"}) {
+            $isadhoc = 1;
+        }
+    }
+    unless ($isadhoc) {
+        %checkallowed = ( coursenormalmail => 1,
+			  coursecritmail => 1,);
+    }
     foreach my $perm_check (['whn','whatsnew',1],
 			    ['pch','coursediscussion',1],
 			    ['mgr','handgrading',1],
 			    ['vgr','abovethreshold',1],
-			    ['opa','haserrors',1],
-			    ['mdc','versionchanges',0],
+			    ['vgr','haserrors',1],
+			    ['whn','versionchanges',1],
                             ['vcl','newroles',1],
                             ['vcl','oldroles',1],
                             ['whn','crslogin',1],
+                            ['vcl','sessions',1],
+                            ['mgr','resetcounters',1],
 			    ) {
 	my ($perm,$key,$check_section) = @{ $perm_check };
 	my $scope = $env{'request.course.id'};
@@ -89,7 +111,7 @@ sub handler {
 
     if ( ! $env{'request.course.fn'} || ! $checkallowed{'whatsnew'}) {
         # Not in a course, or no whn priv in course
-        $env{'user.error.msg'}="/adm/whatsnew::whn:0:0:Cannot display what's new page";
+        $env{'user.error.msg'}="/adm/whatsnew:whn:0:0:Cannot display what's new page";
         return HTTP_NOT_ACCEPTABLE;
     }
 
@@ -151,12 +173,19 @@ sub handler {
         $r->print(&Apache::lonhtmlcommon::breadcrumbs
             ("What's New?",#'Course_Action_Items_Intervals'
              ));
+    } elsif ($command eq 'chgsessionlimit' && $checkallowed{'sessions'}) {
+        &Apache::lonhtmlcommon::add_breadcrumb
+            ({href=>'/adm/whatsnew?command=chgsessionlimit&refpage='.$refpage,
+              text=>"Change session range"});
+        $r->print(&Apache::lonhtmlcommon::breadcrumbs
+            ("What's New?",#'Course_Action_Items_Sessions'
+             ));
     } else {
         $r->print(&Apache::lonhtmlcommon::breadcrumbs
             ("What's New?",#'Course_Action_Items_Display'
 	     ));
     }
-    &display_main_box($r,$command,$refpage,\%checkallowed);
+    &display_main_box($r,$command,$refpage,\%checkallowed,$cdom,$crs);
     return OK;
 }
 
@@ -167,7 +196,7 @@ sub handler {
 #------------------------------
                                                                                 
 sub display_main_box {
-    my ($r,$command,$refpage,$checkallowed) = @_;
+    my ($r,$command,$refpage,$checkallowed,$cdom,$crs) = @_;
     my $domain=&Apache::loncommon::determinedomain();
     my $function = &Apache::loncommon::get_users_function();
     my $lctype = lc(&Apache::loncommon::course_type());
@@ -197,16 +226,24 @@ sub display_main_box {
                     86400 => 'roles which expired since yesterday',
                    );
     my %crslogins = (
-                       -1 => 'last login for anyone who has ever logged in',
-                  2592000 => 'last login for users in last 30 days',
-                   604800 => 'last login for users in last 7 days',
-                    86400 => 'last login for users in last 24 hours',
+                       -1 => 'last logins for anyone who has ever logged in',
+                  2592000 => 'last logins for users in last 30 days',
+                   604800 => 'last logins for users in last 7 days',
+                    86400 => 'last logins for users in last 24 hours',
+                   );
+    my %sessions = (
+                     300  => 'course sessions active in the last 5 minutes',
+                     600  => 'course sessions active in the last 10 minutes',
+                     1800 => 'course sessions active in the last 30 minutes',
+                     7200 => 'course sessions active in the last 2 hours',
+                    -7200 => 'course sessions with last activity more than 2 hours ago',
                    );
     my %interval_titles = (
         versions => \%versions,
         newroles => \%newroles,
         oldroles => \%oldroles,
         crslogin => \%crslogins,
+        sessions => \%sessions,
     );
     my %initpage = &Apache::lonlocal::texthash (
                      firstres => "first resource in the $lctype",
@@ -214,13 +251,10 @@ sub display_main_box {
                      userpref => 'your general user preferences',
                      coursespecific => "specific setting for this $lctype",
                    );
-    my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
-    my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
 
     if (($command eq 'chgthreshold') 
 	&& $checkallowed->{'abovethreshold'}) {
-        &display_threshold_config($r,$refpage,\%threshold_titles,
-                                                                   $cdom,$crs);
+        &display_threshold_config($r,$refpage,\%threshold_titles,$cdom,$crs);
     } elsif (($command eq 'chginterval') 
 	     && $checkallowed->{'versionchanges'}) {
         &display_interval_config($r,$refpage,\%interval_titles,'versions');
@@ -237,7 +271,10 @@ sub display_main_box {
         &display_interval_config($r,$refpage,\%interval_titles,'oldroles');
     } elsif (($command eq 'chgcrslogininterval')
              && $checkallowed->{'crslogin'}) {
-        &display_interval_config($r,$refpage,\%interval_titles,'crslogin'); 
+        &display_interval_config($r,$refpage,\%interval_titles,'crslogin');
+    } elsif (($command eq 'chgsessionlimit')
+             && $checkallowed->{'sessions'}) {
+        &display_interval_config($r,$refpage,\%interval_titles,'sessions');
     } else {
         &display_actions_box($r,$command,$refpage,\%threshold_titles,
                         \%interval_titles,\%initpage,$cdom,$crs,$checkallowed);
@@ -263,10 +300,11 @@ sub display_header {
     
     my $scripttag;
     unless ($command eq 'chgthreshold' || $command eq 'chginterval' || 
-            $command eq 'chgoldroleinterval' || 
+            $command eq 'chgoldroleinterval' ||
             $command eq 'chgnewroleinterval' || $command eq 'chgcrslogininterval') {
        $scripttag = <<"END";
 <script type="text/javascript">
+// <![CDATA[
 function change_display(caller,change) {
     caller.value = change;
     document.visible.submit();
@@ -281,55 +319,62 @@ END
                             "\n";
             }
         }
-        $scripttag.='document.visible.submit();
+        $scripttag.=<<"ENDTOGG";
+    document.visible.submit();
+}
+
+function thresholdreset() {
+    document.visible.command.value="reset";
+    document.visible.submit();
 }
 
-function togglelogins() {
-    var total = document.visible.logincount.value;
-    var sumrow = document.visible.loginrow.value;
+function toggledetails(prefix) {
+    var total = document.visible[prefix+'count'].value;
+    var sumrow = document.visible[prefix+'row'].value;
     if (total == 0) {
         return;
     }
-    var showlogindetails = 0;
-    for (var i=0; i<document.visible.logindetails.length; i++) {
-        if (document.visible.logindetails[i].checked) {
-            showlogindetails = document.visible.logindetails[i].value;
+    var showdetails = 0;
+    for (var i=0; i<document.visible[prefix+'details'].length; i++) {
+        if (document.visible[prefix+'details'][i].checked) {
+            showdetails = document.visible[prefix+'details'][i].value;
         }
     }
     var detval = "none";
     var sumval = "";
-    if (showlogindetails == 1) {
+    if (showdetails == 1) {
         detval = "";
-        sumval = "none";   
+        sumval = "none";
     }
     for (var j=0; j<total; j++) {
         var counter = j+1;
-        var itemid = "logindet_"+counter; 
+        var itemid = prefix+"det_"+counter;
         personele = document.getElementById(itemid);
         if (personele != null) {
             personele.style.display = detval;
         }
     }
-    var detheaderele = document.getElementById("logintitledet");
+    var detheaderele = document.getElementById(prefix+"titledet");
     if (detheaderele != null) {
         detheaderele.style.display = detval;
     }
     for (var k=0; k<sumrow; k++) {
         var counter = k+1;
-        var itemid = "loginsum_"+counter;
-        logincatele = document.getElementById(itemid);
-        if (logincatele != null) {
-            logincatele.style.display = sumval;
+        var itemid = prefix+"sum_"+counter;
+        catele = document.getElementById(itemid);
+        if (catele != null) {
+            catele.style.display = sumval;
         }
     }
-    var sumheaderele = document.getElementById("logintitlesum");
+    var sumheaderele = document.getElementById(prefix+"titlesum");
     if (sumheaderele != null) {
         sumheaderele.style.display = sumval;
     }
     return;
 }
+// ]]>
 </script>
-';
+ENDTOGG
     }
     my $course_type=&Apache::loncommon::course_type();
     return &Apache::loncommon::start_page("What's New?",
@@ -346,7 +391,6 @@ function togglelogins() {
 sub display_actions_box {
     my ($r,$command,$refpage,$threshold_titles,$interval_titles,$initpage,
         $cdom,$crs,$checkallowed) = @_;
-    my $custommenu = &Apache::loncommon::needs_gci_custom();
     my $udom = $env{'user.domain'};
     my $uname = $env{'user.name'};
     my $cid = $env{'request.course.id'};
@@ -382,6 +426,8 @@ sub display_actions_box {
     my %activated;
     my %loggedin;
     my $logincount;
+    my %sessions;
+    my $sessioncount;
     my %res_title = ();
     my %show = ();
     my $needitems = 0;
@@ -410,7 +456,7 @@ sub display_actions_box {
     }
 
     my $header = '';
-    if (($refpage eq 'start') && (!$custommenu)) {
+    if ($refpage eq 'start') {
         if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
             &GDBM_READER(),0640)) {
             my $furl=&HTML::Entities::encode($bighash{'first_url'},'"<>&');
@@ -419,8 +465,7 @@ sub display_actions_box {
                   '</a></b><br />';
         }
     }
-    unless ($custommenu) {
-        $header .= &mt('Page set to be displayed after you have selected a role in this '.$lctype).'.'
+    $header .= &mt('Page set to be displayed after you have selected a role in this '.$lctype).'.'
               .' <span class="LC_nobreak">'
               .&mt('Currently: [_1].','<i>'.$currinit.'</i>')
               .'&nbsp;&nbsp;'
@@ -433,11 +478,10 @@ sub display_actions_box {
                   ,'</a>')
               .' </span>';
 
-        $r->print(&Apache::loncommon::head_subbox($header));
-    }
+    $r->print(&Apache::loncommon::head_subbox($header));
 
     if ($command eq 'reset') {
-        $result = &process_reset($cdom,$crs);
+        $result = &process_reset($cdom,$crs,$checkallowed);
     } elsif ($command eq 'update') {
         $result = &process_update($uname,$udom,$threshold_titles);
     } elsif ($command eq 'newinterval') {
@@ -528,29 +572,49 @@ sub display_actions_box {
         $headings{'crslogin'} = &mt('Last login for users in last 24 hours');
     }
 
-    my $now = time;
+    $timediff{'sessions'} = $display_settings{$cid.':sessionactivity'};
+    unless (defined($timediff{'sessions'})) { $timediff{'sessions'} = 7200; }
+    $interval{'sessions'} = $interval_titles->{'sessions'}->{$timediff{'sessions'}};
+
+    if ($timediff{'sessions'} == -7200) {
+        $headings{'sessions'} = &mt('Session with activity more than 2 hours ago');
+    } elsif ($timediff{'sessions'} == 7200) {
+        $headings{'sessions'} = &mt('Session with activity in last 2 hours');
+    } elsif ($timediff{'sessions'} == 1800) {
+        $headings{'sessions'} = &mt('Session with activity in last 30 minutes');
+    } elsif ($timediff{'sessions'} == 600) {
+        $headings{'sessions'} = &mt('Session with activity in last 10 minutes');
+    } elsif ($timediff{'sessions'} == 300) {
+        $headings{'sessions'} = &mt('Session with activity in last 5 minutes');
+    }
+
+    my ($now,$starttime,$activatedstart,$expiredstart,$crsloginstart);
+    $now = time;
+
     if ($timediff{'versions'} == -1) {
-        $timediff{'versions'} = time;
+        $starttime = 0;
+    } else {
+        $starttime = $now - $timediff{'versions'};
     }
-    my $starttime = $now - $timediff{'versions'};
 
     if ($timediff{'newroles'} == -1) {
-        $timediff{'newroles'} = time;
+        $activatedstart = 0;
+    } else {
+        $activatedstart = $now - $timediff{'newroles'};
     }
-    my $activatedstart = $now - $timediff{'newroles'};
 
     if ($timediff{'oldroles'} == -1) {
-        $timediff{'oldroles'} = time;
+        $expiredstart = 0;
+    } else {
+        $expiredstart = $now - $timediff{'oldroles'};
     }
 
-    my $expiredstart = $now - $timediff{'oldroles'};
-
     if ($timediff{'crslogin'} == -1) {
-        $timediff{'crslogin'} = time;
+        $crsloginstart = 0;
+    } else {
+        $crsloginstart = $now - $timediff{'crslogin'};
     }
 
-    my $crsloginstart = $now - $timediff{'crslogin'};
-
     my $countunread = $display_settings{$cid.':countunread'};
     unless (defined($countunread)) {
         $countunread = 'on';
@@ -564,12 +628,20 @@ sub display_actions_box {
 	    $threshold{'av_attempts'},$threshold{'degdiff'},
 	    '<br />',$threshold{'numstudents'});
 
-    my @actionorder;
-    if ($custommenu) {
-        @actionorder = ('coursenormalmail','coursecritmail','newroles','oldroles','crslogin');
-    } else {
-        @actionorder = ('handgrading','haserrors','abovethreshold','versionchanges','coursediscussion','coursenormalmail','coursecritmail','newroles','oldroles');
-    }
+    my @actionorder = ('handgrading','haserrors','abovethreshold','versionchanges','coursediscussion','coursenormalmail','coursecritmail','newroles','oldroles','crslogin','sessions');
+    my %actioncolumn = (
+                         handgrading      => 'left',
+                         haserrors        => 'left',
+                         abovethreshold   => 'left',
+                         versionchanges   => 'left',
+                         coursediscussion => 'right',
+                         coursenormalmail => 'right',
+                         coursecritmail   => 'right',
+                         newroles         => 'right',
+                         oldroles         => 'right',
+                         crslogin         => 'right',
+                         sessions         => 'right',
+                       );
 
     foreach my $key (keys(%{$checkallowed})) {
 	if ($key =~ /_section$/) { next; }
@@ -583,7 +655,8 @@ sub display_actions_box {
 
     foreach my $item (@actionorder) {
         unless ($item eq 'coursenormalmail' || $item eq 'coursecritmail' ||
-                $item eq 'newroles' || $item eq 'oldroles') {
+                $item eq 'newroles' || $item eq 'oldroles' || 
+                $item eq 'crslogin' || $item eq 'sessions') {
             if ($show{$item}) {
                 $needitems = 1;
                 last;
@@ -593,7 +666,11 @@ sub display_actions_box {
 
     my $itemserror;
     if ($needitems) {
-        $itemserror = &getitems(\%unread,\%ungraded,\%bombed,\%triggered,\%changed,\@newdiscussions,\@tograde,\@bombs,\@warnings,\%threshold,$cdom,$crs,\%res_title,\%show,$starttime,$countunread);
+        $itemserror = &getitems(\%unread,\%ungraded,\%bombed,\%triggered,\%changed,\@newdiscussions,\@tograde,\@bombs,\@warnings,\%threshold,$cdom,$crs,\%res_title,\%show,$starttime,$countunread,$checkallowed);
+    }
+    my $classlist;
+    if ($show{'oldroles'} || $show{'newroles'} || $show{'crslogin'} || $show{'sessions'}) {
+        $classlist = &Apache::loncoursedata::get_classlist();
     }
     if ($show{'coursenormalmail'}) {
         $msgcount = &getnormalmail(\@newmsgs);
@@ -602,15 +679,17 @@ sub display_actions_box {
         $critmsgcount = &getcritmail(\@critmsgs);
     }
     if ($show{'oldroles'}) {
-        $expirecount = &getexpired(\%expired,$expiredstart,'previous');
+        $expirecount = &getexpired(\%expired,$expiredstart,'previous',$classlist);
     }
     if ($show{'newroles'}) {
-        $activecount = &getactivated(\%activated,$activatedstart,'active');
+        $activecount = &getactivated(\%activated,$activatedstart,'active',$classlist);
     }
     if ($show{'crslogin'}) {
         $logincount = &getloggedin($cdom,$crs,\%loggedin,$crsloginstart);
     }
-
+    if ($show{'sessions'}) {
+        $sessioncount = &getsessions($cdom,$crs,\%sessions,$timediff{'sessions'},$classlist);
+    }
     $r->print(qq|<a href="javascript:changeAll('hide');">$lt{'hial'}</a>
      &nbsp;&nbsp;<a href="javascript:changeAll('show');">$lt{'shal'}</a>
      <form method="post" name="visible" action="/adm/whatsnew">\n|);
@@ -632,24 +711,23 @@ sub display_actions_box {
             $totalboxes ++;
         }
     }
-    my $halfway = 4;
+    my $currcolumn = 'left';
 #    my $halfway = int($totalboxes/2) + $totalboxes%2;
-    if ($custommenu) {
-        $halfway = 2;
-    }
     foreach my $actionitem (@actionorder) {
-        if ($$checkallowed{$actionitem}) {
-            if ($displayed == $halfway) {
+        if ($checkallowed->{$actionitem}) {
+            if (($actioncolumn{$actionitem} eq 'right') && ($currcolumn eq 'left')) {
                 $r->print('</td><td>&nbsp;</td><td class="LC_right_col" >');
+                $currcolumn = 'right'; 
             }
-            &display_launcher($r,$actionitem,$refpage,$checkallowed,\%show,\%headings,\%res_title,\@tograde,\%ungraded,\@bombs,\%bombed,\%changed,\@warnings,\%triggered,\@newdiscussions,\%unread,$msgcount,\@newmsgs,$critmsgcount,\@critmsgs,\%interval,$countunread,\%expired,$expirecount,\%activated,$activecount,$crstype,$itemserror,\%loggedin,$logincount);
+            &display_launcher($r,$actionitem,$refpage,$checkallowed,\%show,\%headings,\%res_title,\@tograde,\%ungraded,\@bombs,\%bombed,\%changed,\@warnings,\%triggered,\@newdiscussions,\%unread,$msgcount,\@newmsgs,$critmsgcount,\@critmsgs,\%interval,$countunread,\%expired,$expirecount,\%activated,$activecount,$crstype,$itemserror,\%loggedin,$logincount,\%sessions,$sessioncount,$classlist);
             $displayed ++; 
         }
     }
     $r->print('
-      </td></form>
+      </td>
     </tr>
    </table>
+   </form>
 ');
 }
 
@@ -688,16 +766,21 @@ sub display_threshold_config {
     foreach my $type (@thresholditems) {
         my $parameter = $env{'request.course.id'}.':threshold_'.$type;
 # onchange is javascript to automatically check the 'Set' button.
-        my $onchange = 'onFocus="javascript:window.document.forms'.
+        my $onchange = 'onfocus="javascript:window.document.forms'.
               "['thresholdform'].elements['".$parameter."_setparmval']".
               '.checked=true;"';
+        my $aria_textbox = ' aria-label="'.&mt('Threshold value for [_1]',
+                                               $threshold_titles{$type}).'"';
+        my $aria_checkbox = ' aria-label="'.&mt('Change threshold value for [_1]',
+                                                $threshold_titles{$type}).'"';
         $r->print(&Apache::loncommon::start_data_table_row()."\n".
                  '<td>'.$threshold_titles{$type}.'</td>'."\n".
                  '<td>'.&Apache::lonhtmlcommon::textbox($parameter.'_value',
                                             $threshold{$type},
-                                            10,$onchange).'</td>'."\n".
+                                            10,$onchange.$aria_textbox).'</td>'."\n".
                  '<td>'.
-                 &Apache::lonhtmlcommon::checkbox($parameter.'_setparmval').
+                 &Apache::lonhtmlcommon::checkbox($parameter.'_setparmval',
+                                                  '','',$aria_checkbox).
                  '</td>'."\n".
                  &Apache::loncommon::end_data_table_row());
     }
@@ -722,6 +805,8 @@ sub display_interval_config {
         $setting = 'oldroleinterval';
     } elsif ($context eq 'newroles') {
         $setting = 'newroleinterval'; 
+    } elsif ($context eq 'sessions') {
+        $setting = 'sessionactivity';
     }
     my $lctype = lc(&Apache::loncommon::course_type());
     my $current = &get_current($env{'user.name'},$env{'user.domain'},
@@ -732,6 +817,8 @@ sub display_interval_config {
         $r->print('<br />'.&mt('Choose the time window to use to display roles for which access to the '.$lctype.' became available.').'<br />');
     } elsif ($context eq 'crslogin') {
         $r->print('<br />'.&mt('Choose the time window to use to display the last login by a user in the '.$lctype).'<br />');
+    } elsif ($context eq 'sessions') {
+        $r->print('<br />'.&mt('Choose the time limit to use to display active user sessions in the '.$lctype.'.').'<br />');
     } else {
         $r->print('<br />'.&mt('Choose the time window to use to display resources in the '.$lctype.' with version changes.').'<br />');
     }
@@ -747,12 +834,19 @@ sub display_interval_config {
 <input type="hidden" name="intervaltype" value="'.$context.'" />
 <input type="hidden" name="refpage" value="'.$refpage.'" />'.
 &mt('Display:').' 
-<select name="interval">
+<select name="interval" aria-label="'.&mt('Choose time window').'">
 <option value="" selected="selected">'.&mt('Select').'</option>
 ');
     if (ref($interval_titles) eq 'HASH') {
         if (ref($interval_titles->{$context}) eq 'HASH') {
-            foreach my $key (reverse sort ({$a cmp $b} (keys(%{$interval_titles->{$context}})))) {
+            my @sorted;
+            if ($context eq 'sessions') {
+                @sorted = sort { $a <=> $b } (keys(%{$interval_titles->{$context}}));
+                push(@sorted,shift(@sorted));
+            } else {
+                @sorted = reverse sort ({$a cmp $b} (keys(%{$interval_titles->{$context}})));
+            }
+            foreach my $key (@sorted) {
                 $r->print('<option value="'.$key.'">'.&mt($interval_titles->{$context}->{$key}).
                           '</option>'."\n");
             }
@@ -795,7 +889,7 @@ function toggle_countunread(choice) {
              .'<br />'
              .&mt("This can increase the time taken to gather data for the [_1]What's New Page[_2] by a few seconds.",'<i>','</i>')
              .'&nbsp;&nbsp;'
-             .&mt('Currently set to [_1].','<b>'.$current.'</b>.')
+             .&mt('Currently set to [_1].','<b>'.$current.'</b>')
     );
     $r->print('<br /><br />
 <form method="post" name="discussionswitch" action="/adm/whatsnew">
@@ -897,10 +991,11 @@ sub display_launcher {
         $tograde,$ungraded,$bombs,$bombed,$changed,$warnings,$triggered,
         $newdiscussions,$unread,$msgcount,$newmsgs,$critmsgcount,$critmsgs,
         $interval,$countunread,$expired,$expirecount,$activated,$activecount,
-        $crstype,$itemserror,$loggedin,$logincount) = @_;
+        $crstype,$itemserror,$loggedin,$logincount,$sessions,$sessioncount,
+        $classlist) = @_;
 
     if ($$checkallowed{$action}) {
-        &start_box($r,$show,$headings,$action,$refpage,$action);
+        &start_box($r,$show,$headings,$action,$refpage);
         if ($$show{$action}) {
             if ($action eq 'handgrading') {    # UNGRADED ITEMS
                 &display_handgrade($r,$tograde,$ungraded,$itemserror);
@@ -910,7 +1005,7 @@ sub display_launcher {
                 &display_versionchanges($r,$changed,$res_title,$interval->{'versions'},$itemserror);
             } elsif ($action eq 'abovethreshold') { # DEGDIFF/AV. TRIES TRIGGERS
                 &display_abovethreshold($r,$refpage,$warnings,$triggered,
-					$res_title,$itemserror);
+					$res_title,$itemserror,$checkallowed);
             } elsif ($action eq 'coursediscussion') { # UNREAD COURSE DISCUSSION
                 &display_coursediscussion($r,$newdiscussions,$unread,
                                 $countunread,$res_title,$itemserror);
@@ -920,14 +1015,16 @@ sub display_launcher {
                 &display_coursecritmail($r,$critmsgcount,$critmsgs);
             } elsif ($action eq 'newroles') { # ACTIVATED ROLES
                 &display_rolechanges($r,$activecount,$activated,$interval->{'newroles'},
-                                     $crstype);
+                                     $crstype,$classlist);
             } elsif ($action eq 'oldroles') { # EXPIRED ROLES
                 &display_rolechanges($r,$expirecount,$expired,$interval->{'oldroles'},
-                                     $crstype);
+                                     $crstype,$classlist);
             } elsif ($action eq 'crslogin') { #LAST LOGIN
-                &display_crslogins($r,$logincount,$loggedin,$interval->{'crslogin'},
-                                   $crstype);
-                                     
+                &display_activity($r,'logins',$logincount,$loggedin,$interval->{'crslogin'},
+                                   $crstype,$classlist);
+            } elsif ($action eq 'sessions') { #ACTIVE SESSIONS
+                &display_activity($r,'sessions',$sessioncount,$sessions,$interval->{'sessions'},
+                                  $crstype,$classlist);
             }
         }
         &end_box($r);
@@ -938,7 +1035,7 @@ sub display_launcher {
 sub getitems {
     my ($unread,$ungraded,$bombed,$triggered,$changed,$newdiscussions,
         $tograde,$bombs,$warnings,$threshold,$cdom,$crs,$res_title,$show,
-        $starttime,$countunread) = @_;
+        $starttime,$countunread,$checkallowed) = @_;
     my $navmap = Apache::lonnavmaps::navmap->new();
     if (!defined($navmap)) {
         my $itemserror = '<span class="LC_warning">'.&mt('An error occurred retrieving information about the course.').'<br />'.&mt('It is recommended that you [_1]re-select the course[_2].','<a href="/adm/roles">','</a>').'</span>';
@@ -998,9 +1095,9 @@ sub getitems {
 # Maxtries and degree of difficulty for problem parts, unless handgradeable
         if ($$show{'abovethreshold'}) {  
             &check_thresholds($resource,$symb,\%resourcetracker,
-			      $triggered,$threshold,$warnings);
+			      $triggered,$threshold,$warnings,
+                              $checkallowed);
         }
-
     }
     return; 
 }
@@ -1031,12 +1128,28 @@ sub check_discussions {
 sub check_handgraded {
     my ($resource,$symb,$title,$cdom,$cnum,$ungraded,$tograde) = @_;
     if ($resource->is_problem()) {
-        my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
+        my ($handgradeable,$is_task);
         my $partlist=$resource->parts();
-        my $handgradeable;
-        foreach my $part (@$partlist) {
-            if ($resource->handgrade($part) eq 'yes') {
-                $handgradeable=1; last;
+        if ($resource->is_task()) {
+            $is_task = 1;
+            foreach my $part (@$partlist) {
+                if ($resource->handgrade($part) eq 'yes') {
+                    $handgradeable=1;
+                    last;
+                }
+            }
+        } else {
+            foreach my $part (@$partlist) {
+                my @types = $resource->responseType($part);
+                if (grep(/^essay$/,@types)) {
+                    $handgradeable=1;
+                    last;
+                } elsif (grep(/^custom$/,@types)) {
+                    if ($resource->handgrade($part) eq 'yes') {
+                        $handgradeable=1;
+                        last;
+                    }
+                }
             }
         }
         if ($handgradeable) {
@@ -1045,6 +1158,7 @@ sub check_handgraded {
             if (@ungraded > 0) {
                 $$ungraded{$symb}{count} = scalar(@ungraded);
                 $$ungraded{$symb}{title} = $title;
+                $$ungraded{$symb}{is_task} = $is_task;
                 if ($resource->encrypted()) {
                     $$ungraded{$symb}{'enclink'} = $resource->link();
                     $$ungraded{$symb}{'encsymb'} = $resource->shown_symb();
@@ -1072,7 +1186,8 @@ sub check_bombed {
 }
 
 sub check_thresholds {
-    my ($resource,$symb,$resourcetracker,$triggered,$threshold,$warnings) = @_;
+    my ($resource,$symb,$resourcetracker,$triggered,$threshold,$warnings,
+        $checkallowed) = @_;
 # Compile maxtries and degree of difficulty for problem parts, unless handgradeable
     my @parts = @{$resource->parts()};
     my %stats;
@@ -1082,6 +1197,9 @@ sub check_thresholds {
         if ($resource->handgrade($part) eq 'yes') {
             next;
         }
+        if ($resource->is_anonsurvey($part)) {
+            next;
+        }
         if ($resource->is_survey($part)) {
             next;
         }
@@ -1104,6 +1222,7 @@ sub check_thresholds {
             $av_attempts = $attempts/$users;
             $av_attempts = sprintf("%.2f",$av_attempts);
         }
+        &Apache::lonnet::statslog($symb,$part,$users,$av_attempts,$degdiff);
         if ((($degdiff ne '' && $degdiff >= $$threshold{'degdiff'}) || ($av_attempts ne '' && $av_attempts >= $$threshold{'av_attempts'})) && ($users >= $$threshold{'numstudents'})) {
             $stats{$part}{degdiff} = $degdiff;
             $stats{$part}{attempts} = $av_attempts;
@@ -1134,8 +1253,14 @@ sub check_thresholds {
                      <td>'.$stats{$part}{users}.'</td>
                      <td>'.$stats{$part}{attempts}.'</td>
                      <td>'.$stats{$part}{degdiff}.'</td>
-                     <td>'.$lastreset{$part}.'</td>
-                     <td><input type="checkbox" name="'.$resetname.'" /><input type="hidden" name="'.$resettitle.'" value="'.&escape($$triggered{$symb}{title}).'" /></td>';
+                     <td>'.$lastreset{$part}.'</td>';
+                if ($checkallowed->{'resetcounters'}) {
+                    my $aria = ' aria-label="'.&mt('Reset counter for [_1] (part [_2])',
+                                                  $$triggered{$symb}{title},$part).'"';
+                    $$triggered{$symb}{text}[$partcount] .=
+                        '<td><input type="checkbox" name="'.$resetname.'"'.$aria.' />'.
+                        '<input type="hidden" name="'.$resettitle.'" value="'.&escape($$triggered{$symb}{title}).'" /></td>';
+                }
                 $partcount ++;
             }
             $$triggered{$symb}{numparts} = $partcount;
@@ -1157,7 +1282,7 @@ sub get_curr_thresholds {
     my $thresholdcount = 0;
     my ($tmp) = %thresholdsettings;
     unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
-        foreach my $item (keys %{$threshold}) { 
+        foreach my $item (keys(%{$threshold})) { 
             if (exists($thresholdsettings{$cid.':threshold_'.$item})) {
                 $$threshold{$item} = 
                              $thresholdsettings{$cid.':threshold_'.$item};
@@ -1172,7 +1297,7 @@ sub get_curr_thresholds {
                                               $cdom,$crs,'internal.threshold');
     my ($temp) = %coursesettings;
     unless ($temp =~ /^(con_lost|error|no_such_host)/i) {  
-        foreach my $item (keys %{$threshold}) {
+        foreach my $item (keys(%{$threshold})) {
             unless (exists($thresholdsettings{$cid.':threshold_'.$item})) {
                 if (exists($coursesettings{'internal.threshold_'.$item})) {
                     $$threshold{$item} = 
@@ -1197,7 +1322,11 @@ sub get_current {
 }
 
 sub process_reset {
-    my ($dom,$crs) = @_;
+    my ($dom,$crs,$checkallowed) = @_;
+    if (!$checkallowed->{'resetcounters'}) {
+        return '<b>'.&mt('You do not have the required privileges to reset counters').
+               '</b><br />';
+    }
     my $result = '<b>'.&mt('Counters reset for following problems (and parts):').
                            '</b><br />';
     my @agg_types = ('attempts','users','correct');
@@ -1238,10 +1367,14 @@ sub process_reset {
 
 sub process_update {
     my ($uname,$udom,$threshold_titles) = @_;
-    my $setoutput = '<b>'.&mt('Changes to threshold(s) for problem tracking:').'</b><br />';
-    foreach (keys %env) {
-        next if ($_!~/^form\.(.+)\_setparmval$/);
-        my $name  = $1;
+    my $setoutput = '<b>'.&mt('Changes to threshold(s) for problem tracking:').'</b><br/><br />';
+    foreach my $key (keys(%env)) {
+        my $name;
+        if ($key =~/^form\.(.+)\_setparmval$/) {
+            $name  = $1;
+        } else {
+            next;
+        }
         my $value = $env{'form.'.$name.'_value'};
         if ($name && defined($value) && ($value ne '')) {
             my $put_result = &Apache::lonnet::put('nohist_whatsnew',
@@ -1249,45 +1382,52 @@ sub process_update {
            
             my ($shortname) = ($name =~ /^\Q$env{'request.course.id'}\E:threshold_(.+)$/);
             if ($put_result eq 'ok') {
-                $setoutput.=&mt('Set threshold for [_1] to [_2]',
+                $setoutput.= &Apache::lonhtmlcommon::confirm_success(&mt('Set threshold for [_1] to [_2]',
 				'<b>'.$$threshold_titles{$shortname}.'</b>',
-				'<b>'.$value.'</b>').'<br />';
+				'<b>'.$value.'</b>').'<br />');
 	    } else {
-                $setoutput.=&mt('Unable to set threshold for [_1] to [_2] due to [_3].',
+                $setoutput.= &Apache::lonhtmlcommon::confirm_success(&mt('Unable to set threshold for [_1] to [_2] due to [_3].',
 				'<b>'.$name.'</b>','<b>'.$value.'</b>',
-				'<tt>'.$put_result.'</tt>').'<br />';
+				'<tt>'.$put_result.'</tt>').'<br />',1);
             }
         }
     }
-    return $setoutput;
+    return &Apache::loncommon::confirmwrapper($setoutput);
 }
 
 sub getnormalmail {
     my ($newmsgs) = @_;
-# Check for unread mail in course
+# Check for unread messages in user's INBOX (which were sent in context of current course).
     my $msgcount = 0;
-
-    my @messages = sort(&Apache::lonnet::getkeys('nohist_email'));
-    foreach my $message (@messages) {
-	my $msgid=&escape($message);
-        my ($sendtime,$shortsubj,$fromname,$fromdom,$status,$fromcid)=
-            &Apache::lonmsg::unpackmsgid($msgid);
-        if (($fromcid) && ($fromcid eq $env{'request.course.id'})) {
-            if (defined($sendtime) && $sendtime!~/error/) {
-                my $numsendtime = $sendtime;
-                if ($status eq 'new') {
-                $sendtime = &Apache::lonlocal::locallocaltime($sendtime);
-		    $msgcount ++;
-                    if ($shortsubj eq '') {
-                        $shortsubj = &mt('No subject');
+    my @messages = &Apache::lonnet::getkeys('nohist_email');
+    return $msgcount if (!@messages);
+    my %emailstatus = &Apache::lonnet::dump('email_status');
+    foreach my $msgid (sort(@messages)) {
+        if ((!$emailstatus{$msgid}) || ($emailstatus{$msgid} eq 'new')) {
+            my $skipstatus;
+            if ($emailstatus{$msgid} eq 'new') {
+                $skipstatus = 1;
+            }
+            my $esc_msgid = &escape($msgid);
+            my ($sendtime,$shortsubj,$fromname,$fromdom,$status,$fromcid)=
+                &Apache::lonmsg::unpackmsgid($esc_msgid,undef,$skipstatus,undef,
+                                             $env{'request.course.id'});
+            if (($fromcid) && ($fromcid eq $env{'request.course.id'})) {
+                if (defined($sendtime) && $sendtime!~/error/) {
+                    if (($emailstatus{$msgid} eq 'new') || ($status eq 'new')) {
+                        $sendtime = &Apache::lonlocal::locallocaltime($sendtime);
+		        $msgcount ++;
+                        if ($shortsubj eq '') {
+                            $shortsubj = &mt('No subject');
+                        }
+                        push(@{$newmsgs}, {
+                            msgid    => $esc_msgid,
+                            sendtime => $sendtime,
+                            shortsub => $shortsubj,
+                            from     => $fromname,
+                            fromdom  => $fromdom
+                            });
                     }
-                    push(@{$newmsgs}, {
-                        msgid    => $msgid,
-                        sendtime => $sendtime,
-                        shortsub => $shortsubj,
-                        from     => $fromname,
-                        fromdom  => $fromdom
-                        });
                 }
             }
         }
@@ -1297,23 +1437,24 @@ sub getnormalmail {
 
 sub getcritmail {
     my ($critmsgs) = @_; 
-# Check for critical messages in course
+# Check for critical messages which were sent in context of current course.
     my %what=&Apache::lonnet::dump('critical');
     my $result = '';
     my $critmsgcount = 0;
     foreach my $msgid (sort(keys(%what))) {
+        my $esc_msgid = &escape($msgid);
         my ($sendtime,$shortsubj,$fromname,$fromdom,$status,$fromcid)=
-            &Apache::lonmsg::unpackmsgid($msgid);
+            &Apache::lonmsg::unpackmsgid($esc_msgid,undef,1,undef,
+                                         $env{'request.course.id'});
         if (($fromcid) && ($fromcid eq  $env{'request.course.id'})) {
             if (defined($sendtime) && $sendtime!~/error/) {
-                my $numsendtime = $sendtime;
                 $sendtime = &Apache::lonlocal::locallocaltime($sendtime);
                 $critmsgcount ++;
                 if ($shortsubj eq '') {
                     $shortsubj = &mt('No subject');
                 }
                 push(@{$critmsgs}, {
-                        msgid    => $msgid,
+                        msgid    => $esc_msgid,
                         sendtime => $sendtime,
                         shortsub => $shortsubj,
                         from     => $fromname,
@@ -1326,13 +1467,13 @@ sub getcritmail {
 }
 
 sub getexpired {
-    my ($rolechgs,$rolechgtime,$status) = @_;
-    my $expirecount = &getrolechanges($rolechgs,$rolechgtime,$status);
+    my ($rolechgs,$rolechgtime,$status,$classlist) = @_;
+    my $expirecount = &getrolechanges($rolechgs,$rolechgtime,$status,$classlist);
     return $expirecount;
 }
 
 sub getactivated {
-    my ($rolechgs,$rolechgtime,$status) = @_;
+    my ($rolechgs,$rolechgtime,$status,$classlist) = @_;
     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
     my $now = time();
@@ -1344,28 +1485,26 @@ sub getactivated {
     my (%stucounted,%advcounted);
     my $activatedcount = 0;
     if (keys(%changes) > 0) {
-        foreach my $chg (sort { $b <=> $a } (keys(%changes))) {
+        foreach my $chg (keys(%changes)) {
             if (ref($changes{$chg}) eq 'HASH') {
-                my $timestamp = $changes{$chg}{'exe_time'};
-                if ($timestamp) {
-                    if ($rolechgtime > 0) {
-                        if ($timestamp < $rolechgtime) {
-                            last;
-                        }
-                    }
+                next if ($changes{$chg}{'delflag'});
+                if ($rolechgtime > 0) {
+                    next if ($changes{$chg}{'exe_time'} < $rolechgtime);
+                }
+                if ($changes{$chg}{'exe_time'}) {
+                    my $timestamp = $changes{$chg}{'exe_time'};
                     if (ref($changes{$chg}{'logentry'}) eq 'HASH') {
-                        next if ($changes{$chg}{'delflag'});
-                        my $start = $changes{$chg}{'logentry'}{'start'};
                         my $end = $changes{$chg}{'logentry'}{'end'};
-                        my $section = $changes{$chg}{'logentry'}{'section'};
-                        my $role = $changes{$chg}{'logentry'}{'role'};
-                        my $uname = $changes{$chg}{'uname'};
-                        my $udom = $changes{$chg}{'udom'};
                         next if ($end && $end <= $now);
+                        my $start = $changes{$chg}{'logentry'}{'start'};
+                        next if ($start >= $timestamp);
+                        my $section = $changes{$chg}{'logentry'}{'section'};
                         if (($viewablesec ne '') && ($section ne '')) {
                             next if ($viewablesec ne $section);
                         }
-                        next if ($start >= $timestamp);
+                        my $role = $changes{$chg}{'logentry'}{'role'};
+                        my $uname = $changes{$chg}{'uname'};
+                        my $udom = $changes{$chg}{'udom'};
                         if ($role eq 'st') {
                             $stucounted{$uname.':'.$udom.':'.$section} = $start.':'.$end;
                         } else {
@@ -1385,12 +1524,13 @@ sub getactivated {
             }
         }
     }
-    $activatedcount += &getrolechanges($rolechgs,$rolechgtime,$status,\%stucounted,\%advcounted);
+    $activatedcount += &getrolechanges($rolechgs,$rolechgtime,$status,$classlist,\%stucounted,
+                                       \%advcounted);
     return $activatedcount;
 }
 
 sub getrolechanges {
-    my ($rolechgs,$rolechgtime,$status,$stucountref,$advcountref) = @_;
+    my ($rolechgs,$rolechgtime,$status,$classlist,$stucountref,$advcountref) = @_;
     my (%stucounted,%advcounted);
     if (ref($stucountref) eq 'HASH') {
         %stucounted = %{$stucountref};
@@ -1408,63 +1548,64 @@ sub getrolechanges {
     my ($permission,$allowed) =
         &Apache::lonuserutils::get_permission($context);
     my $viewablesec = &Apache::lonuserutils::viewable_section($permission);
-    my $classlist = &Apache::loncoursedata::get_classlist();
     my $secidx = &Apache::loncoursedata::CL_SECTION();
     my $startidx = &Apache::loncoursedata::CL_START();
     my $endidx = &Apache::loncoursedata::CL_END();
     my $rolechgcount = 0;
-    foreach my $key (keys(%{$classlist})) {
-        my ($userstatus,$eventtime);   
-        my $student = $classlist->{$key};
-        if (ref($student) eq 'ARRAY') {
-            my $start = $student->[$startidx];
-            my $end = $student->[$endidx];
-            my $sec = $student->[$secidx]; 
-            my ($stuname,$studom) = split(/:/,$key);
-            if ($status eq 'active') {
-                if (exists($stucounted{$key.':'.$sec})) {
-                    next;
+    if (ref($classlist) eq 'HASH') {
+        foreach my $key (keys(%{$classlist})) {
+            my ($userstatus,$eventtime);   
+            my $student = $classlist->{$key};
+            if (ref($student) eq 'ARRAY') {
+                my $start = $student->[$startidx];
+                my $end = $student->[$endidx];
+                my $sec = $student->[$secidx]; 
+                my ($stuname,$studom) = split(/:/,$key);
+                if ($status eq 'active') {
+                    if (exists($stucounted{$key.':'.$sec})) {
+                        next;
+                    }
                 }
-            }
-            if (($end == 0) || ($end > $start)) {
-                if ($start <= $now) {
-                    if ($end && $end < $now) {
-                        if ($rolechgtime > 0) {
-                            if ($end > $rolechgtime) {
+                if (($end == 0) || ($end > $start)) {
+                    if ($start <= $now) {
+                        if ($end && $end < $now) {
+                            if ($rolechgtime > 0) {
+                                if ($end > $rolechgtime) {
+                                    $userstatus = 'previous';
+                                }
+                            } else {
                                 $userstatus = 'previous';
                             }
                         } else {
-                            $userstatus = 'previous';
-                        }
-                    } else {
-                        if ($rolechgtime > 0) {
-                            if ($start >= $rolechgtime) {
+                            if ($rolechgtime > 0) {
+                                if ($start >= $rolechgtime) {
+                                    $userstatus = 'active';
+                                }
+                            } else {
                                 $userstatus = 'active';
                             }
-                        } else {
-                            $userstatus = 'active';
                         }
                     }
                 }
+                next if ($userstatus ne $status);
+                if ($status eq 'active') {
+                    $eventtime = $start;
+                } else {
+                    $eventtime = $end;
+                }
+                if (($viewablesec ne '') && ($sec ne '')) {
+                    next if ($viewablesec ne $sec);
+                }
+                my %chginfo = (
+                                'section' => $sec,
+                                'uname'   => $stuname,
+                                'udom'    => $studom,
+                                'role'    => 'st', 
+                                'status'  => $userstatus,
+                              );
+                $rolechgcount ++;
+                push(@{$rolechgs->{$eventtime}},\%chginfo);
             }
-            next if ($userstatus ne $status);
-            if ($status eq 'active') {
-                $eventtime = $start;
-            } else {
-                $eventtime = $end;
-            }
-            if (($viewablesec ne '') && ($sec ne '')) {
-                next if ($viewablesec ne $sec);
-            }
-            my %chginfo = (
-                            'section' => $sec,
-                            'uname'   => $stuname,
-                            'udom'    => $studom,
-                            'role'    => 'st', 
-                            'status'  => $userstatus,
-                          );
-            $rolechgcount ++;
-            push (@{$rolechgs->{$eventtime}},\%chginfo);
         }
     }
     my %advrolehash = &Apache::lonnet::get_my_roles($cnum,$cdom,undef,
@@ -1556,7 +1697,79 @@ sub getloggedin {
         }
     }
     return $logincount;
-} 
+}
+
+sub getsessions {
+    my ($cdom,$cnum,$sessions,$lastactive,$classlist) = @_;
+    my $context = 'course';
+    my ($permission,$allowed) =
+        &Apache::lonuserutils::get_permission($context);
+    my %crs_sessions = &Apache::lonnet::get_course_sessions($cnum,$cdom,$lastactive);
+    my $sessioncount = 0;
+    if (keys(%crs_sessions) > 0) {
+        if (ref($classlist) eq 'HASH') {
+            my $viewablesec = &Apache::lonuserutils::viewable_section($permission);
+            my $secidx = &Apache::loncoursedata::CL_SECTION();
+            my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'_'.$cnum,1);
+            my %personnel;
+            foreach my $role (sort(keys(%coursepersonnel))) {
+                my ($rolecode,$section);
+                if ($role =~ /:/) {
+                    ($rolecode,$section) = split(/:/,$role);
+                } else {
+                    $rolecode = $role;
+                }
+                if ($viewablesec ne '') {
+                    next if ($viewablesec ne $section);
+                }
+                foreach my $user (split(/\,/,$coursepersonnel{$role})) {
+                    push(@{$personnel{$user}{$rolecode}},$section);
+                }
+            }
+            foreach my $key (keys(%crs_sessions)) {
+                if (exists($classlist->{$key})) {
+                    my $student = $classlist->{$key};
+                    my $section = $student->[$secidx];
+                    my $lastaccess = $crs_sessions{$key};
+                    if ($viewablesec ne '') {
+                        next if ($viewablesec ne $section);
+                    }
+                    my ($stuname,$studom) = split(/:/,$key);
+                    my %info = (
+                                 'section' => $section,
+                                 'role'    => 'st',
+                                 'uname'   => $stuname,
+                                 'udom'    => $studom,
+                    );
+                    $sessioncount ++;
+                    push(@{$sessions->{$lastaccess}},\%info);
+                } elsif (exists($personnel{$key})) {
+                    my $lastaccess = $crs_sessions{$key};
+                    my ($uname,$udom) = split(/:/,$key);
+                    if (ref($personnel{$key}) eq 'HASH') {
+                        my ($showrole,$showsec);
+                        foreach my $possrole ('cc','co','in','ta','ep','ad','st') {
+                            if (exists($personnel{$key}{$possrole})) {
+                                $showrole = $possrole;
+                                $showsec = join(', ',@{$personnel{$key}{$possrole}});
+                                last;
+                            }
+                        }
+                        my %info = (
+                                     'section' => $showsec,
+                                     'role'    => $showrole,
+                                     'uname'   => $uname,
+                                     'udom'    => $udom,
+                        );
+                        $sessioncount ++;
+                        push(@{$sessions->{$lastaccess}},\%info);
+                    }
+                }
+            }
+        }
+    }
+    return $sessioncount;
+}
 
 sub checkversions {
     my ($cdom,$crs,$navmap,$changed,$starttime) = @_;
@@ -1574,7 +1787,7 @@ sub checkversions {
                                                      'lastrevisiondate');
                     $revdate =  &Apache::lonlocal::locallocaltime($revdate);
                     my $linkurl=&Apache::lonnet::clutter($key);
-                    my $usedversion=$navmap->usedVersion('version_'.$linkurl);
+                    my $usedversion=$navmap->usedVersion($linkurl);
                     my @resources = $navmap->getResourceByUrl($linkurl,1);
                     if (($usedversion) && ($usedversion ne 'mostrecent')) {
                         $version = $usedversion;     
@@ -1613,13 +1826,24 @@ sub display_handgrade {
         foreach my $res (@{$tograde}) {
             $rowNum ++;
             my $css_class = $rowNum%2?' class="LC_odd_row"':'';
-            my ($map,$id,$url)=&Apache::lonnet::decode_symb($res);
-            my $linkurl=&Apache::lonnet::clutter($url);
-            $linkurl .= '?symb='.&escape($res);
-            if ($$ungraded{$res}{'enclink'}) {
-                $linkurl = 
-                    $$ungraded{$res}{'enclink'}.'?symb='.$$ungraded{$res}{'encsymb'};
-            } 
+            my $linkurl;
+            if ($$ungraded{$res}{'is_task'}) {
+                my ($map,$id,$url)=&Apache::lonnet::decode_symb($res);
+                $linkurl=&Apache::lonnet::clutter($url);
+                $linkurl .= '?symb='.&escape($res);
+                if ($$ungraded{$res}{'enclink'}) {
+                    $linkurl =
+                        $$ungraded{$res}{'enclink'}.'?symb='.$$ungraded{$res}{'encsymb'};
+                }
+            } else {
+                $linkurl='/adm/grades';
+                if ($$ungraded{$res}{'enclink'}) {
+                    $linkurl.='?symb='.$$ungraded{$res}{'encsymb'};
+                } else {
+                    $linkurl.='?symb='.&escape($res);
+                }
+                $linkurl.='&amp;command=ungraded';
+            }
             $r->print('<tr'.$css_class.'><td><a href="'.$linkurl.'">'.$$ungraded{$res}{title}.'</a></td><td class="LC_right_item">'.$$ungraded{$res}{count}.'</td></tr>');
         }
     } elsif ($itemserror) {
@@ -1658,7 +1882,7 @@ sub display_haserrors {
 }
 
 sub display_abovethreshold {
-    my ($r,$refpage,$warnings,$triggered,$res_title,$itemserror) = @_;
+    my ($r,$refpage,$warnings,$triggered,$res_title,$itemserror,$checkallowed) = @_;
     my %lt = &Apache::lonlocal::texthash(
                  reso => 'Resource',
                  part => 'Part',
@@ -1672,16 +1896,16 @@ sub display_abovethreshold {
     );
     if (@{$warnings} > 0) {
         @{$warnings} = sort { &cmp_title($a,$b,$res_title) } @{$warnings};
-        $r->print('<form name="reset_tracking" method="post" action="/adm/whatsnew">'.
-                ' <input type="hidden" name="command" value="reset" />'."\n".
-                ' <input type="hidden" name="refpage" value="'.$refpage.'" />'.
-                "\n");
         $r->print('<tr class="LC_info_row">'.
-		  '<td class="LC_left_item">'.$lt{'reso'}.'</td>'.
+		  '<td class="LC_left_item">'.$lt{'reso'}.
+                  '<input type="hidden" name="command" value="" /></td>'.
 		  '<td>'.$lt{'part'}.'</td><td>'.$lt{'nust'}.'</td>'.
 		  '<td>'.$lt{'avat'}.'</td><td>'.$lt{'dedi'}.'</td>'.
-		  '<td>'.$lt{'lare'}.'</td><td  class="LC_right_item">'.
-                  $lt{'reco'}.'</td></tr>');
+		  '<td>'.$lt{'lare'}.'</td>');
+        if ($checkallowed->{'resetcounters'}) {
+            $r->print('<td  class="LC_right_item">'.$lt{'reco'}.'</td>');
+        }
+        $r->print('</tr>');
 	my $row;
         foreach my $res (@{$warnings}) {
 	    $row++;
@@ -1707,13 +1931,15 @@ sub display_abovethreshold {
             if (ref($$triggered{$res}{text}) eq 'ARRAY') {
                 if (@{$$triggered{$res}{text}} > 1) {
                     for (my $i=1; $i<@{$$triggered{$res}{text}}; $i++) {
-                        $r->print('<tr class="'.$css_class.'">'.
+                        $r->print('<tr '.$css_class.'>'.
                                   $$triggered{$res}{text}[$i].'</tr>');
                     }
                 }
             }
         }
-        $r->print('<tr class="LC_info_row"><td colspan="7" class="LC_right_item"><br /><input type="submit" name="counters" value="'.$lt{'rese'}.'" /></td></tr></form>');
+        if ($checkallowed->{'resetcounters'}) {
+            $r->print('<tr class="LC_info_row"><td colspan="7" class="LC_right_item"><br /><input type="button" name="counters" value="'.$lt{'rese'}.'" onclick="javascript:thresholdreset();" /></td></tr>');
+        }
     } elsif ($itemserror) {
         $r->print('<tr class="LC_empty_row"><td>'.$itemserror.'</td></tr>');
     } else {
@@ -1759,7 +1985,7 @@ sub display_versionchanges {
 }
 
 sub display_rolechanges {
-    my ($r,$chgcount,$changed,$interval,$crstype) = @_;
+    my ($r,$chgcount,$changed,$interval,$crstype,$classlist) = @_;
     my $now = time();
     my %lt = &Apache::lonlocal::texthash(
         'user'  => 'User',
@@ -1778,6 +2004,7 @@ sub display_rolechanges {
         if (ref($changed) eq 'HASH') {
             my @changes = sort { $b <=> $a } (keys(%{$changed}));
             my $changenum = 0;
+            my $fullnameidx = &Apache::loncoursedata::CL_FULLNAME();
             foreach my $item (@changes) {
                 if (ref($changed->{$item}) eq 'ARRAY') {
                     foreach my $chg (@{$changed->{$item}}) {
@@ -1795,8 +2022,14 @@ sub display_rolechanges {
                             my $udom = $chg->{'udom'};
                             $changenum ++;
                             my $css_class = $changenum%2?' class="LC_odd_row"':'';
+                            my $fullname;
+                            if (ref($classlist->{$uname.':'.$udom}) eq 'ARRAY') {
+                                $fullname = $classlist->{$uname.':'.$udom}->[$fullnameidx];
+                            } else {
+                                $fullname = &Apache::loncommon::plainname($uname,$udom,'lastname');
+                            }
                             my $link = 
-                                &Apache::loncommon::aboutmewrapper(&Apache::loncommon::plainname($uname,$udom),$uname,$udom);
+                                &Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
                             $r->print('<tr'.$css_class.'>'.
                                       '<td>'.&Apache::lonlocal::locallocaltime($item).'</td>'.
                                       '<td>'.$link.'</td>'.
@@ -1815,35 +2048,47 @@ sub display_rolechanges {
     return;
 }
 
-sub display_crslogins {
-    my ($r,$logincount,$loggedin,$interval,$crstype) = @_;
+sub display_activity {
+    my ($r,$context,$count,$details,$interval,$crstype,$classlist) = @_;
+    return unless (ref($classlist) eq 'HASH');
     my %lt = &Apache::lonlocal::texthash(
         'user'   => 'User',
         'role'   => 'Role',
         'sec'    => 'Section',
         'number' => 'Total number of logins',
     );
-    if ($logincount) {
-        $r->print('<tr class="LC_info_row" style="display:none" id="logintitledet">'.
+    my $prefix = 'login';
+    if ($context eq 'sessions') {
+        $lt{'number'} = &mt('Total number of active user sessions');
+        $lt{'active'} = &mt('Last active');
+        $prefix = 'session';
+    }
+    if ($count) {
+
+        my $hdr = '<tr class="LC_info_row" style="display:none" id="'.$prefix.'titledet">'.
                   '<td class="LC_left_item">'.$lt{'user'}.'</td>'.
                   '<td class="LC_left_item">'.$lt{'role'}.'</td>'.
-                  '<td class="LC_left_item">'.$lt{'sec'}.'</td></tr>'.
-                  '<tr class="LC_info_row" id="logintitlesum">'.
-                  '<td class="LC_left_item">'.$lt{'number'}.'</td>'.
-                  '<td class="LC_left_item">'.$lt{'role'}.'</td>'.
-                  '<td class="LC_left_item">'.$lt{'sec'}.'</td></tr>');
+                  '<td class="LC_left_item">'.$lt{'sec'}.'</td>';
+        if ($context eq 'sessions') {
+            $hdr .= '<td class="LC_left_item">'.$lt{'active'}.'</td>';
+        }
+        $hdr .= '</tr>'."\n".
+                '<tr class="LC_info_row" id="'.$prefix.'titlesum">'.
+                '<td class="LC_left_item">'.$lt{'number'}.'</td>'.
+                '<td class="LC_left_item">'.$lt{'role'}.'</td>'.
+                '<td class="LC_left_item">'.$lt{'sec'};
         my (%bylastname,%counts);
-        if (ref($loggedin) eq 'HASH') {
-            my @logins = sort { $b <=> $a } (keys(%{$loggedin}));
-            my $numlogin = 0;
-            foreach my $item (@logins) {
-                if (ref($loggedin->{$item}) eq 'ARRAY') {
-                    foreach my $user (@{$loggedin->{$item}}) {
+        if (ref($details) eq 'HASH') {
+            my @items = sort { $b <=> $a } (keys(%{$details}));
+            my $num = 0;
+            my $fullnameidx = &Apache::loncoursedata::CL_FULLNAME();
+            foreach my $item (@items) {
+                if (ref($details->{$item}) eq 'ARRAY') {
+                    foreach my $user (@{$details->{$item}}) {
                         if (ref($user) eq 'HASH') {
                             my $section;
                             my $role =
                                 &Apache::lonnet::plaintext($user->{'role'},$crstype);
-                            my $status = &mt($user->{'status'});
                             if ($user->{'section'} eq '') {
                                 $section = &mt('none');
                             } else {
@@ -1852,53 +2097,62 @@ sub display_crslogins {
                             $counts{$user->{'role'}}{$section} ++;
                             my $uname = $user->{'uname'};
                             my $udom = $user->{'udom'};
-                            my $fullname = &Apache::loncommon::plainname($uname,$udom,'lastname');
+                            my $fullname;
+                            if (ref($classlist->{$uname.':'.$udom}) eq 'ARRAY') {
+                                $fullname = $classlist->{$uname.':'.$udom}->[$fullnameidx];
+                            } else {
+                                $fullname = &Apache::loncommon::plainname($uname,$udom,'lastname');
+                            }
                             my $link =
                                 &Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
-                            push(@{$bylastname{$fullname}},
-                                                          '<td>'.$link.'</td>'.
-                                                          '<td>'.$role.'</td>'.
-                                                          '<td>'.$section.'</td>');
+                            my $entry = '<td>'.$link.'</td>'.
+                                        '<td>'.$role.'</td>'.
+                                        '<td>'.$section.'</td>';
+                            if ($context eq 'sessions') {
+                                $entry .= '<td>'.&Apache::lonlocal::locallocaltime($item).'</td>';
+                            }
+                            push(@{$bylastname{$fullname}},$entry);
                         }
                     }
                 }
             }
+            my $table;
             foreach my $person (sort(keys(%bylastname))) {
-                if (ref($bylastname{$person}) eq 'ARRAY') { 
-                    foreach my $item (@{$bylastname{$person}}) { 
-                        $numlogin ++;
-                        my $css_class = $numlogin%2?' class="LC_odd_row"':'';
-                        $r->print('<tr'.$css_class.' style="display:none;"  id="logindet_'.$numlogin.'">'.$item.'</td></tr>'); 
+                if (ref($bylastname{$person}) eq 'ARRAY') {
+                    foreach my $item (@{$bylastname{$person}}) {
+                        $num ++;
+                        my $css_class = $num%2?' class="LC_odd_row"':'';
+                        $table .= '<tr'.$css_class.' style="display:none;"  id="'.$prefix.'det_'.$num.'">'.$item.'</tr>';
                     }
                 }
             }
             my $numrow = 0;
             foreach my $role (sort(keys(%counts))) {
                 my $showrole = &Apache::lonnet::plaintext($role,$crstype);
-                if (ref($counts{$role}) eq 'HASH') { 
+                if (ref($counts{$role}) eq 'HASH') {
                     foreach my $sec (sort { $b <=> $a } (keys(%{$counts{$role}}))) {
                         $numrow ++;
                         my $css_class = $numrow%2?' class="LC_odd_row"':'';
-                        $r->print('<tr '.$css_class.' id="loginsum_'.$numrow.'">'.
+                        $table .= '<tr '.$css_class.' id="'.$prefix.'sum_'.$numrow.'">'.
                                   '<td>'.$counts{$role}{$sec}.'</td>'.
                                   '<td>'.$showrole.'</td>'.
-                                  '<td>'.$sec.'</td></tr>');
+                                  '<td>'.$sec.'</td></tr>';
                    }
                 }
             }
-            $r->print('<input type="hidden" name="logincount" value="'.$numlogin.
-                      '" /><input type="hidden" name="loginrow" value="'.$numrow.
-                      '" />');
+            $r->print($hdr.'<input type="hidden" name="'.$prefix.'count" value="'.$num.
+                      '" /><input type="hidden" name="'.$prefix.'row" value="'.$numrow.
+                      '" /></td></tr>'.$table);
         }
     } else {
         $r->print('<tr class="LC_empty_row"><td>'.
                   &mt('There are no '.$interval).
-                  '<input type="hidden" name="logincount" value="'.$logincount.
+                  '<input type="hidden" name="'.$prefix.'count" value="'.$count.
                   '." /></td></tr>');
     }
     return;
 }
- 
+
 sub display_coursediscussion {
     my ($r,$newdiscussions,$unread,$countunread,$res_title,$itemserror) = @_;
     my $lctype = lc(&Apache::loncommon::course_type());
@@ -1928,7 +2182,7 @@ sub display_coursediscussion {
             my $forum_title = $$unread{$ressymb}{'title'};
             my $type = 'Resource';
             my $feedurl=&Apache::lonfeedback::get_feedurl($ressymb);
-            my $disclink = $feedurl.'?symb='.$$unread{$ressymb}{symb};
+            my $disclink = $feedurl.'?symb='. &escape($$unread{$ressymb}{symb});
             if ($feedurl =~ /bulletinboard/) {
                 $type = 'Discussion Board';
             }
@@ -2061,6 +2315,8 @@ sub store_interval_setting {
             $interval_settings{$cid.':newroleinterval'} = $env{'form.interval'};
         } elsif ($context eq 'crslogin') {
             $interval_settings{$cid.':crslogininterval'} = $env{'form.interval'};
+        } elsif ($context eq 'sessions') {
+            $interval_settings{$cid.':sessionactivity'} = $env{'form.interval'};
         } else {
             $interval_settings{$cid.':interval'} = $env{'form.interval'};
         }
@@ -2068,19 +2324,19 @@ sub store_interval_setting {
                                              \%interval_settings,$udom,$uname);
         if ($outcome eq 'ok') {
             if (ref($interval_titles->{$context}) eq 'HASH') {
-                $result = &mt('New filter setting: [_1].','<b>'. 
-                              $interval_titles->{$context}->{$env{'form.interval'}}.'</b>').'<br />';
+                $result = &Apache::lonhtmlcommon::confirm_success(&mt('New filter setting: [_1].','<b>'. 
+                              $interval_titles->{$context}->{$env{'form.interval'}}.'</b>').'<br />');
             }
         } else {
 	    my $lctype = lc(&Apache::loncommon::course_type());
             &Apache::lonnet::logthis('Error saving whatsnew '.$context.' interval setting'.
                 ' '.$outcome.' for '.$uname.':'.$udom.' in '.$lctype.' '.$cid);
-            $result = &mt('Unable to set interval to [_1] due to [_2].',
+            $result = &Apache::lonhtmlcommon::confirm_success(&mt('Unable to set interval to [_1] due to [_2].',
                          '<b>'.$interval_titles->{$context}->{$env{'form.interval'}}.'</b>',
-                         '<tt>'.$outcome.'</tt>.<br />');
+                         '<tt>'.$outcome.'</tt>'),1);
         }
     }
-    return $result;
+    return &Apache::loncommon::confirmwrapper($result);
 }
 
 sub store_discussion_setting {
@@ -2092,20 +2348,20 @@ sub store_discussion_setting {
         my $outcome = &Apache::lonnet::put('nohist_whatsnew',
                                              \%discussion_settings,$udom,$uname);
         if ($outcome eq 'ok') {
-            $result = &mt('Count unread posts in discussions display set to [_1]',
-                  '<b>'.&mt($env{'form.countunread'}).'</b>').'<br />';
+            $result = &Apache::lonhtmlcommon::confirm_success(&mt('Count unread posts in discussions display set to [_1]',
+                  '<b>'.&mt($env{'form.countunread'}).'</b>').'<br />');
                                                                                   
         } else {
 	    my $lctype = lc(&Apache::loncommon::course_type());
             &Apache::lonnet::logthis('Error saving whatsnew countunread setting'.
                 ' '.$outcome.' for '.$uname.':'.$udom.' in '.$lctype.' '.$cid);
-            $result = &mt('Unable to set "number unread posts display" to [_1]'.
+            $result = &Apache::lonhtmlcommon::confirm_success(&mt('Unable to set "number unread posts display" to [_1]'.
                           ' due to [_2].',
                          '<b>'.&mt($env{'form.countunread'}).'</b>',
-                         '<tt>'.$outcome.'</tt>.<br />');
+                         '<tt>'.$outcome.'</tt>'),1);
         }
     }
-    return $result;
+    return &Apache::loncommon::confirmwrapper($result);
 }
 
 sub store_courseinit_setting {
@@ -2130,30 +2386,29 @@ sub store_courseinit_setting {
                                            \%courseinit_settings,$udom,$uname);
             if ($outcome eq 'ok') {
                 if ($page_control eq 'global preferences') {
-                    $result = &mt("Page displayed after role selection in $lctype now set by [_1]user's global preferences[_2].",'<b>','</b>');
+                    $result = &Apache::lonhtmlcommon::confirm_success(&mt("Page displayed after role selection in $lctype now set by [_1]user's global preferences[_2].",'<b>','</b>'));
                 } else {
-                    $result = &mt('Page displayed after role selection in this '.$lctype.' set to [_1].'
-                                 ,'<b>'.$$initpage{$env{'form.courseinit_page'}}.'</b>');
+                    $result = &Apache::lonhtmlcommon::confirm_success(&mt('Page displayed after role selection in this '.$lctype.' set to [_1].'
+                                 ,'<b>'.$$initpage{$env{'form.courseinit_page'}}.'</b>'));
                 }
             } else {
                 &Apache::lonnet::logthis('Error saving whatsnew courseinit '.
                                          'setting: '.$outcome.' for '.$uname.
                                          ':'.$udom.' in '.$lctype.' '.$cid);
                 if ($page_control eq 'global preferences') {
-                    $result = &mt('Unable to set control of page display to [_1]'.
+                    $result = &Apache::lonhtmlcommon::confirm_success(&mt('Unable to set control of page display to [_1]'.
                           ' due to [_2].',
                          '<b>'.$page_control.'</b>',
-                         '<tt>'.$outcome.'</tt>.<br />');
+                         '<tt>'.$outcome.'</tt>'),1);
                 } else {
-                    $result = &mt('Unable to set page display, after role selection, for this '.$lctype.' to [_1] due to [_2].'
+                    $result = &Apache::lonhtmlcommon::confirm_success(&mt('Unable to set page display, after role selection, for this '.$lctype.' to [_1] due to [_2].'
                                  ,'<b>'.$$initpage{$env{'form.courseinit_page'}}.'</b>'
-                                 ,'<tt>'.$outcome.'</tt>')
-                             .'<br />';
+                                 ,'<tt>'.$outcome.'</tt>'),1);
                 }
             }
         }
     }
-    return $result;
+    return &Apache::loncommon::confirmwrapper($result);
 }
 
 sub start_box {
@@ -2216,15 +2471,21 @@ sub start_box {
                 <td class="LC_subheader" colspan="2"><a href="/adm/whatsnew?command=chgoldroleinterval&amp;refpage='.$refpage.'">'.$lt{'chin'}.'</a></td>
               </tr>');
          }
-     } elsif (($caller eq 'crslogin') && ($$show{$caller})) {
-         if ($$show{$caller}) {
-             $r->print('
+    } elsif (($caller eq 'crslogin') && ($$show{$caller})) {
+        if ($$show{$caller}) {
+            $r->print('
               <tr>
-                <td class="LC_subheader" align="left"><span class="LC_nobreak"><label><input type="radio" name="logindetails" value="0" checked="checked" onclick="javascript:togglelogins();" />&nbsp;'.&mt('Summary').'</label><label><input type="radio" name="logindetails" value="1" onclick="javascript:togglelogins();" />&nbsp;'.&mt('Details').'</label></span></td><td class="LC_subheader"><a href="/adm/whatsnew?command=chgcrslogininterval&amp;refpage='.$refpage.'">'.$lt{'chin'}.'</a></td>
+                <td class="LC_subheader" align="left"><span class="LC_nobreak"><label><input type="radio" name="logindetails" value="0" checked="checked" onclick="javascript:toggledetails('."'login'".');" />&nbsp;'.&mt('Summary').'</label><label><input type="radio" name="logindetails" value="1" onclick="javascript:toggledetails('."'login'".');" />&nbsp;'.&mt('Details').'</label></span></td><td class="LC_subheader"><a href="/adm/whatsnew?command=chgcrslogininterval&amp;refpage='.$refpage.'">'.$lt{'chin'}.'</a></td>
               </tr>');
-         }
-     }
-
+        }
+    } elsif (($caller eq 'sessions') && ($$show{$caller})) {
+        if ($$show{$caller}) {
+            $r->print('
+              <tr>
+                <td class="LC_subheader" align="left"><span class="LC_nobreak"><label><input type="radio" name="sessiondetails" value="0" checked="checked" onclick="javascript:toggledetails('."'session'".');" />&nbsp;'.&mt('Summary').'</label><label><input type="radio" name="sessiondetails" value="1" onclick="javascript:toggledetails('."'session'".');" />&nbsp;'.&mt('Details').'</label></span></td><td class="LC_subheader"><a href="/adm/whatsnew?command=chgsessionlimit&amp;refpage='.$refpage.'">'.$lt{'chin'}.'</a></td>
+              </tr>');
+        }
+    }
     $r->print('
               <tr>
                <td colspan="2">