--- loncom/interface/lonwhatsnew.pm	2012/10/04 11:31:58	1.108
+++ loncom/interface/lonwhatsnew.pm	2016/11/05 13:37:49	1.121
@@ -1,5 +1,5 @@
 #
-# $Id: lonwhatsnew.pm,v 1.108 2012/10/04 11:31:58 droeschl Exp $
+# $Id: lonwhatsnew.pm,v 1.121 2016/11/05 13:37:49 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -62,17 +62,36 @@ 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 $perm_check (['whn','whatsnew',1],
 			    ['pch','coursediscussion',1],
 			    ['mgr','handgrading',1],
 			    ['vgr','abovethreshold',1],
-			    ['opa','haserrors',1],
-			    ['mdc','versionchanges',0],
+			    ['vgr','haserrors',1],
+			    ['whn','versionchanges',0],
                             ['vcl','newroles',1],
                             ['vcl','oldroles',1],
                             ['whn','crslogin',1],
+                            ['mgr','resetcounters',1],
 			    ) {
 	my ($perm,$key,$check_section) = @{ $perm_check };
 	my $scope = $env{'request.course.id'};
@@ -156,7 +175,7 @@ sub handler {
             ("What's New?",#'Course_Action_Items_Display'
 	     ));
     }
-    &display_main_box($r,$command,$refpage,\%checkallowed);
+    &display_main_box($r,$command,$refpage,\%checkallowed,$cdom,$crs);
     return OK;
 }
 
@@ -167,7 +186,7 @@ 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());
@@ -214,13 +233,10 @@ 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');
@@ -285,6 +301,11 @@ END
         $scripttag.='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;
@@ -436,7 +457,7 @@ sub display_actions_box {
     $r->print(&Apache::loncommon::head_subbox($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') {
@@ -527,28 +548,33 @@ sub display_actions_box {
         $headings{'crslogin'} = &mt('Last login for users in last 24 hours');
     }
 
-    my $now = time;
+    my ($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)) {
         $countunread = 'on';
@@ -563,6 +589,18 @@ sub display_actions_box {
 	    '<br />',$threshold{'numstudents'});
 
     my @actionorder = ('handgrading','haserrors','abovethreshold','versionchanges','coursediscussion','coursenormalmail','coursecritmail','newroles','oldroles','crslogin');
+    my %actioncolumn = (
+                         handgrading      => 'left',
+                         haserrors        => 'left',
+                         abovethreshold   => 'left',
+                         versionchanges   => 'left',
+                         coursediscussion => 'right',
+                         coursenormalmail => 'right',
+                         coursecritmail   => 'right',
+                         newroles         => 'right',
+                         oldroles         => 'right',
+                         crslogin         => 'right',
+                       );
 
     foreach my $key (keys(%{$checkallowed})) {
 	if ($key =~ /_section$/) { next; }
@@ -586,7 +624,11 @@ 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'}) {
+        $classlist = &Apache::loncoursedata::get_classlist();
     }
     if ($show{'coursenormalmail'}) {
         $msgcount = &getnormalmail(\@newmsgs);
@@ -595,10 +637,10 @@ 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);
@@ -624,14 +666,15 @@ sub display_actions_box {
             $totalboxes ++;
         }
     }
-    my $halfway = 4;
+    my $currcolumn = 'left';
 #    my $halfway = int($totalboxes/2) + $totalboxes%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,$logincount,$classlist);
             $displayed ++; 
         }
     }
@@ -678,7 +721,7 @@ 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;"';
         $r->print(&Apache::loncommon::start_data_table_row()."\n".
@@ -785,7 +828,7 @@ function toggle_countunread(choice) {
              .'<br />'
              .&mt("This can increase the time taken to gather data for the [_1]What's New Page[_2] by a few seconds.",'<i>','</i>')
              .'&nbsp;&nbsp;'
-             .&mt('Currently set to [_1].','<b>'.$current.'</b>.')
+             .&mt('Currently set to [_1].','<b>'.$current.'</b>')
     );
     $r->print('<br /><br />
 <form method="post" name="discussionswitch" action="/adm/whatsnew">
@@ -887,7 +930,7 @@ 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,$classlist) = @_;
 
     if ($$checkallowed{$action}) {
         &start_box($r,$show,$headings,$action,$refpage);
@@ -900,7 +943,7 @@ 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);
@@ -910,13 +953,13 @@ 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);
+                                   $crstype,$classlist);
             }
         }
         &end_box($r);
@@ -927,7 +970,7 @@ 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>';
@@ -987,7 +1030,8 @@ 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);
         }
 
     }
@@ -1061,7 +1105,8 @@ 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;
@@ -1127,8 +1172,12 @@ 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($$triggered{$symb}{title}).'" /></td>';
+                     <td>'.$lastreset{$part}.'</td>';
+                if ($checkallowed->{'resetcounters'}) {
+                    $$triggered{$symb}{text}[$partcount] .=
+                        '<td><input type="checkbox" name="'.$resetname.'" />'.
+                        '<input type="hidden" name="'.$resettitle.'" value="'.&escape($$triggered{$symb}{title}).'" /></td>';
+                }
                 $partcount ++;
             }
             $$triggered{$symb}{numparts} = $partcount;
@@ -1150,7 +1199,7 @@ 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})) {
                 $$threshold{$item} = 
                              $thresholdsettings{$cid.':threshold_'.$item};
@@ -1165,7 +1214,7 @@ sub get_curr_thresholds {
                                               $cdom,$crs,'internal.threshold');
     my ($temp) = %coursesettings;
     unless ($temp =~ /^(con_lost|error|no_such_host)/i) {  
-        foreach my $item (keys %{$threshold}) {
+        foreach my $item (keys(%{$threshold})) {
             unless (exists($thresholdsettings{$cid.':threshold_'.$item})) {
                 if (exists($coursesettings{'internal.threshold_'.$item})) {
                     $$threshold{$item} = 
@@ -1190,7 +1239,11 @@ sub get_current {
 }
 
 sub process_reset {
-    my ($dom,$crs) = @_;
+    my ($dom,$crs,$checkallowed) = @_;
+    if (!$checkallowed->{'resetcounters'}) {
+        return '<b>'.&mt('You do not the required privileges to reset counters').
+               '</b><br />';
+    }
     my $result = '<b>'.&mt('Counters reset for following problems (and parts):').
                            '</b><br />';
     my @agg_types = ('attempts','users','correct');
@@ -1232,9 +1285,13 @@ sub process_reset {
 sub process_update {
     my ($uname,$udom,$threshold_titles) = @_;
     my $setoutput = '<b>'.&mt('Changes to threshold(s) for problem tracking:').'</b><br/><br />';
-    foreach (keys %env) {
-        next if ($_!~/^form\.(.+)\_setparmval$/);
-        my $name  = $1;
+    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',
@@ -1257,29 +1314,36 @@ sub process_update {
 
 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) && $sendtime!~/error/) {
-                if ($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') {
+                $skipstatus = 1;
+            }
+            my ($sendtime,$shortsubj,$fromname,$fromdom,$status,$fromcid)=
+                &Apache::lonmsg::unpackmsgid($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    => $msgid,
+                            sendtime => $sendtime,
+                            shortsub => $shortsubj,
+                            from     => $fromname,
+                            fromdom  => $fromdom
+                            });
                     }
-                    push(@{$newmsgs}, {
-                        msgid    => $msgid,
-                        sendtime => $sendtime,
-                        shortsub => $shortsubj,
-                        from     => $fromname,
-                        fromdom  => $fromdom
-                        });
                 }
             }
         }
@@ -1289,13 +1353,14 @@ 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 $msgid (sort(keys(%what))) {
         my ($sendtime,$shortsubj,$fromname,$fromdom,$status,$fromcid)=
-            &Apache::lonmsg::unpackmsgid($msgid);
+            &Apache::lonmsg::unpackmsgid($msgid,undef,1,undef,
+                                         $env{'request.course.id'});
         if (($fromcid) && ($fromcid eq  $env{'request.course.id'})) {
             if (defined($sendtime) && $sendtime!~/error/) {
                 $sendtime = &Apache::lonlocal::locallocaltime($sendtime);
@@ -1317,13 +1382,13 @@ 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();
@@ -1335,28 +1400,26 @@ 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 {
@@ -1376,12 +1439,13 @@ 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 = %{$stucountref};
@@ -1399,63 +1463,64 @@ sub getrolechanges {
     my ($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,
@@ -1610,7 +1675,7 @@ sub display_handgrade {
             } else {
                 $linkurl.='?symb='.&escape($res);
             }
-            $linkurl.='&command=ungraded';
+            $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) {
@@ -1649,7 +1714,7 @@ sub display_haserrors {
 }
 
 sub display_abovethreshold {
-    my ($r,$refpage,$warnings,$triggered,$res_title,$itemserror) = @_;
+    my ($r,$refpage,$warnings,$triggered,$res_title,$itemserror,$checkallowed) = @_;
     my %lt = &Apache::lonlocal::texthash(
                  reso => 'Resource',
                  part => 'Part',
@@ -1663,16 +1728,16 @@ sub display_abovethreshold {
     );
     if (@{$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++;
@@ -1704,7 +1769,9 @@ sub display_abovethreshold {
                 }
             }
         }
-        $r->print('<tr class="LC_info_row"><td colspan="7" class="LC_right_item"><br /><input type="submit" name="counters" value="'.$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 {
@@ -1750,7 +1817,7 @@ sub display_versionchanges {
 }
 
 sub display_rolechanges {
-    my ($r,$chgcount,$changed,$interval,$crstype) = @_;
+    my ($r,$chgcount,$changed,$interval,$crstype,$classlist) = @_;
     my $now = time();
     my %lt = &Apache::lonlocal::texthash(
         'user'  => 'User',
@@ -1769,6 +1836,7 @@ sub display_rolechanges {
         if (ref($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}}) {
@@ -1786,8 +1854,14 @@ 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>'.
@@ -1807,7 +1881,8 @@ sub display_rolechanges {
 }
 
 sub display_crslogins {
-    my ($r,$logincount,$loggedin,$interval,$crstype) = @_;
+    my ($r,$logincount,$loggedin,$interval,$crstype,$classlist) = @_;
+    return unless (ref($classlist) eq 'HASH');
     my %lt = &Apache::lonlocal::texthash(
         'user'   => 'User',
         'role'   => 'Role',
@@ -1828,6 +1903,7 @@ sub display_crslogins {
         if (ref($loggedin) eq 'HASH') {
             my @logins = sort { $b <=> $a } (keys(%{$loggedin}));
             my $numlogin = 0;
+            my $fullnameidx = &Apache::loncoursedata::CL_FULLNAME();
             foreach my $item (@logins) {
                 if (ref($loggedin->{$item}) eq 'ARRAY') {
                     foreach my $user (@{$loggedin->{$item}}) {
@@ -1844,7 +1920,12 @@ 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}},