--- loncom/interface/lonwhatsnew.pm	2005/07/15 05:43:42	1.26
+++ loncom/interface/lonwhatsnew.pm	2012/08/19 00:18:16	1.106
@@ -1,5 +1,5 @@
 #
-# $Id: lonwhatsnew.pm,v 1.26 2005/07/15 05:43:42 albertel Exp $
+# $Id: lonwhatsnew.pm,v 1.106 2012/08/19 00:18:16 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -36,9 +36,13 @@ use Apache::lonlocal;
 use Apache::loncoursedata();
 use Apache::lonnavmaps();
 use Apache::lonuserstate;
+use Apache::lonuserutils; 
 use Apache::Constants qw(:common :http);
 use Time::Local;
 use GDBM_File;
+use lib '/home/httpd/lib/perl/';
+use LONCAPA;
+use HTML::Entities;
 
 #----------------------------
 # handler
@@ -52,41 +56,107 @@ sub handler {
         $r->send_http_header;
         return OK;
     }
-    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['command']);
+    &Apache::loncommon::get_unprocessed_cgi(
+                                   $ENV{'QUERY_STRING'},['command','refpage']);
 
-    my $command;
-    if ($env{'form.action'} eq 'reset') {
-        $command = 'reset';
-    } elsif ($env{'form.action'} eq 'update') {
-        $command = 'update';
-    } else {
-        $command = $env{'form.command'};
+    my $command = $env{'form.command'};
+    my $refpage = $env{'form.refpage'};
+
+    my %checkallowed = ( coursenormalmail => 1,
+			 coursecritmail => 1, );
+    foreach my $perm_check (['whn','whatsnew',1],
+			    ['pch','coursediscussion',1],
+			    ['mgr','handgrading',1],
+			    ['vgr','abovethreshold',1],
+			    ['opa','haserrors',1],
+			    ['mdc','versionchanges',0],
+                            ['vcl','newroles',1],
+                            ['vcl','oldroles',1],
+                            ['whn','crslogin',1],
+			    ) {
+	my ($perm,$key,$check_section) = @{ $perm_check };
+	my $scope = $env{'request.course.id'};
+	if (!($checkallowed{$key} = &Apache::lonnet::allowed($perm,$scope))) {
+	    $scope .= '/'.$env{'request.course.sec'};
+	    if ( $check_section ) {
+		$checkallowed{$key} = &Apache::lonnet::allowed($perm,$scope);
+	    }
+	    if ($checkallowed{$key}) {
+		$checkallowed{$key.'_section'} = $env{'request.course.sec'};
+	    }
+	}
     }
 
-    &Apache::loncommon::content_type($r,'text/html');
-    $r->send_http_header;
-    $r->print(&display_header());
-    if (! (($env{'request.course.fn'}) && (&Apache::lonnet::allowed('vsa',$env{'request.course.id'})))) {
-        # Not in a course, or not allowed to modify parms
-        $env{'user.error.msg'}="/adm/whatsnew:vsa:0:0:Cannot display student activity";
+    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";
         return HTTP_NOT_ACCEPTABLE;
     }
 
+    &Apache::loncommon::content_type($r,'text/html');
+    $r->send_http_header;
+
+    $r->print(&display_header($command,\%checkallowed));
+
     &Apache::lonhtmlcommon::clear_breadcrumbs();
-    if ($command eq 'chgthreshold') {
+    &Apache::lonhtmlcommon::add_breadcrumb
+            ({href=>'/adm/whatsnew',
+              text=>"What's New?"});
+    if (($command eq 'chgthreshold') && $checkallowed{'abovethreshold'}) {
         &Apache::lonhtmlcommon::add_breadcrumb
-            ({href=>'/adm/whatsnew?command=threshold',
+            ({href=>'/adm/whatsnew?command=chgthreshold&refpage='.$refpage,
               text=>"Change thresholds"});
         $r->print(&Apache::lonhtmlcommon::breadcrumbs
-            (undef,'Course Action Items','Course_Action_Items_Thresholds'));
-    } else {
+            ("What's New?",#'Course_Action_Items_Thresholds'
+	     ));
+    } elsif (($command eq 'chginterval') && $checkallowed{'versionchanges'} ) {
         &Apache::lonhtmlcommon::add_breadcrumb
-            ({href=>'/adm/whatsnew',
-              text=>"Display Action Items"});
+            ({href=>'/adm/whatsnew?command=chginterval&refpage='.$refpage,
+              text=>"Change interval"});
         $r->print(&Apache::lonhtmlcommon::breadcrumbs
-            (undef,'Course Action Items','Course_Action_Items_Display'));
+            ("What's New?",#'Course_Action_Items_Intervals'
+	     ));
+    } elsif (($command eq 'chgdisc') && $checkallowed{'coursediscussion'}) {
+        &Apache::lonhtmlcommon::add_breadcrumb
+            ({href=>'/adm/whatsnew?command=chgdisc&refpage='.$refpage,
+              text=>"Change discussion display"});
+        $r->print(&Apache::lonhtmlcommon::breadcrumbs
+            ("What's New?",#'Course_Action_Items_Intervals'
+	     ));
+    } elsif ($command eq 'courseinit') {
+        &Apache::lonhtmlcommon::add_breadcrumb
+            ({href=>'/adm/whatsnew?command=courseinit&refpage='.$refpage,
+              text=>"Course initialization preference"});
+        $r->print(&Apache::lonhtmlcommon::breadcrumbs
+            ("What's New?",#'Course_Action_Items_Initialization'
+	     ));
+    } elsif ($command eq 'chgoldroleinterval' && $checkallowed{'oldroles'}) {
+        &Apache::lonhtmlcommon::add_breadcrumb
+            ({href=>'/adm/whatsnew?command=chgoldroleinterval&refpage='.$refpage,
+              text=>"Change interval"});
+        $r->print(&Apache::lonhtmlcommon::breadcrumbs
+            ("What's New?",#'Course_Action_Items_Intervals'
+             ));
+    } elsif ($command eq 'chgnewroleinterval' && $checkallowed{'newroles'}) {
+        &Apache::lonhtmlcommon::add_breadcrumb
+            ({href=>'/adm/whatsnew?command=chgnewroleinterval&refpage='.$refpage,
+              text=>"Change interval"});
+        $r->print(&Apache::lonhtmlcommon::breadcrumbs
+            ("What's New?",#'Course_Action_Items_Intervals'
+             ));
+    } elsif ($command eq 'chgcrslogininterval' && $checkallowed{'crslogin'}) {
+        &Apache::lonhtmlcommon::add_breadcrumb
+            ({href=>'/adm/whatsnew?command=chgcrslogininterval&refpage='.$refpage,
+              text=>"Change interval"});
+        $r->print(&Apache::lonhtmlcommon::breadcrumbs
+            ("What's New?",#'Course_Action_Items_Intervals'
+             ));
+    } else {
+        $r->print(&Apache::lonhtmlcommon::breadcrumbs
+            ("What's New?",#'Course_Action_Items_Display'
+	     ));
     }
-    &display_main_box($r,$command);
+    &display_main_box($r,$command,$refpage,\%checkallowed);
     return OK;
 }
 
@@ -97,30 +167,87 @@ sub handler {
 #------------------------------
                                                                                 
 sub display_main_box {
-    my ($r,$command) = @_;
+    my ($r,$command,$refpage,$checkallowed) = @_;
     my $domain=&Apache::loncommon::determinedomain();
-    my $tabbg=&Apache::loncommon::designparm('coordinator.tabbg',$domain);
+    my $function = &Apache::loncommon::get_users_function();
+    my $lctype = lc(&Apache::loncommon::course_type());
     $r->print('<table width="100%" border="0" cellpadding="5" cellspacing="0"><tr><td width="100%">');
 
-    my %threshold_titles = (
+    my %threshold_titles = &Apache::lonlocal::texthash (
                          av_attempts => 'Average number of attempts',
                          degdiff => 'Degree of difficulty',
                          numstudents => 'Total number of students with submissions',
     );
+    my %versions = (
+                       -1 => "version changes since start of $lctype",
+                  2592000 => 'version changes since last month',
+                   604800 => 'version changes since last week',
+                    86400 => 'version changes since yesterday',
+                   );
+    my %newroles = (
+                       -1 => "roles which have become active since start of $lctype",
+                  2592000 => 'roles which have become active since last month',
+                   604800 => 'roles which have become active since last week',
+                    86400 => 'roles which have become active since yesterday',
+                   );
+    my %oldroles = (
+                       -1 => "roles which expired since start of $lctype",
+                  2592000 => 'roles which expired since last month',
+                   604800 => 'roles which expired since last week',
+                    86400 => 'roles which expired since yesterday',
+                   );
+    my %crslogins = (
+                       -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 %interval_titles = (
+        versions => \%versions,
+        newroles => \%newroles,
+        oldroles => \%oldroles,
+        crslogin => \%crslogins,
+    );
+    my %initpage = &Apache::lonlocal::texthash (
+                     firstres => "first resource in the $lctype",
+                     whatsnew => "What's New Page",
+                     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 ($command eq 'chgthreshold') {
-        &display_config_box($r,$command,$tabbg,\%threshold_titles,$cdom,$crs);
+    if (($command eq 'chgthreshold') 
+	&& $checkallowed->{'abovethreshold'}) {
+        &display_threshold_config($r,$refpage,\%threshold_titles,
+                                                                   $cdom,$crs);
+    } elsif (($command eq 'chginterval') 
+	     && $checkallowed->{'versionchanges'}) {
+        &display_interval_config($r,$refpage,\%interval_titles,'versions');
+    } elsif (($command eq 'chgdisc') 
+	     && $checkallowed->{'coursediscussion'}) {
+        &display_discussion_config($r,$refpage);
+    } elsif ($command eq 'courseinit') {
+        &courseinit_config($r,$refpage,\%initpage);
+    } elsif (($command eq 'chgnewroleinterval')
+             && $checkallowed->{'newroles'}) {
+        &display_interval_config($r,$refpage,\%interval_titles,'newroles');
+    } elsif (($command eq 'chgoldroleinterval')
+             && $checkallowed->{'oldroles'}) {
+        &display_interval_config($r,$refpage,\%interval_titles,'oldroles');
+    } elsif (($command eq 'chgcrslogininterval')
+             && $checkallowed->{'crslogin'}) {
+        &display_interval_config($r,$refpage,\%interval_titles,'crslogin');
     } else {
-        &display_actions_box($r,$command,\%threshold_titles,$cdom,$crs);
+        &display_actions_box($r,$command,$refpage,\%threshold_titles,
+                        \%interval_titles,\%initpage,$cdom,$crs,$checkallowed);
     }
+    my $end_page = &Apache::loncommon::end_page();
     $r->print(<<END_OF_BLOCK);
   </td>
  </tr>
 </table><br />
-</body>
-</html>
+$end_page
 END_OF_BLOCK
 }
 
@@ -131,16 +258,84 @@ END_OF_BLOCK
 # up the HTML
 #-------------------------------
 
-sub display_header{
-    my $html=&Apache::lonxml::xmlbegin();
-    my $bodytag=&Apache::loncommon::bodytag('Course Action Items');
-    return(<<ENDHEAD);
-$html
-<head>
-<title>Course Action Items</title>
-</head>
-$bodytag
-ENDHEAD
+sub display_header {
+    my ($command,$checkallowed) = @_;
+    
+    my $scripttag;
+    unless ($command eq 'chgthreshold' || $command eq 'chginterval' || 
+            $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();
+}
+
+function changeAll(change) {
+END
+        foreach my $item (keys(%{$checkallowed})) {
+	    if ($item =~ /_section$/) { next; }
+            if ($$checkallowed{$item}) {
+                $scripttag.='document.visible.display_'.$item.'.value=change'.
+                            "\n";
+            }
+        }
+        $scripttag.='document.visible.submit();
+}
+
+function togglelogins() {
+    var total = document.visible.logincount.value;
+    var sumrow = document.visible.loginrow.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 detval = "none";
+    var sumval = "";
+    if (showlogindetails == 1) {
+        detval = "";
+        sumval = "none";
+    }
+    for (var j=0; j<total; j++) {
+        var counter = j+1;
+        var itemid = "logindet_"+counter;
+        personele = document.getElementById(itemid);
+        if (personele != null) {
+            personele.style.display = detval;
+        }
+    }
+    var detheaderele = document.getElementById("logintitledet");
+    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 sumheaderele = document.getElementById("logintitlesum");
+    if (sumheaderele != null) {
+        sumheaderele.style.display = sumval;
+    }
+    return;
+}
+// ]]>
+</script>
+';
+    }
+    my $course_type=&Apache::loncommon::course_type();
+    return &Apache::loncommon::start_page("What's New?",
+					  $scripttag);
 }
 
 #-------------------------------
@@ -150,557 +345,856 @@ ENDHEAD
 #
 #-------------------------------
                                                                                 
-sub display_actions_box() {
-    my ($r,$command,$threshold_titles,$cdom,$crs) = @_;
-
-    my $rowColor1 = "#ffffff";
-    my $rowColor2 = "#eeeeee";
-    my $rowColor;
+sub display_actions_box {
+    my ($r,$command,$refpage,$threshold_titles,$interval_titles,$initpage,
+        $cdom,$crs,$checkallowed) = @_;
+    my $udom = $env{'user.domain'};
+    my $uname = $env{'user.name'};
+    my $cid = $env{'request.course.id'};
+    my $crstype = &Apache::loncommon::course_type();
+    my $lctype = lc($crstype);
+    my %stulabel = (
+                    'Course' => 'students',
+                    'Community' => 'members',
+                   );
+    my %lt = &Apache::lonlocal::texthash(
+                 'yacc' => 'You are accessing an invalid course',
+                 'gtfr' => 'Go to first resource',
+                 'hial' => 'Hide all',
+                 'shal' => 'Show all',
+    );
 
     my %unread = ();
     my %ungraded = ();
     my %bombed = ();
     my %triggered = ();
+    my %changed = ();
     my @newmsgs = ();
     my @critmsgs = ();
     my @newdiscussions = ();
     my @tograde = ();
     my @bombs = ();
     my @warnings = ();
+    my $msgcount = 0;
+    my $critmsgcount = 0;
+    my $expirecount;
+    my %expired;
+    my $activecount;
+    my %activated;
+    my %loggedin;
+    my $logincount;
     my %res_title = ();
+    my %show = ();
+    my $needitems = 0;
+    my $boxcount = 0;
 
-    my $domain=&Apache::loncommon::determinedomain();
-    my $function;
-    if ($env{'request.role'}=~/^(cc|in|ta|ep)/) {
-        $function='coordinator';
-    }
-    if ($env{'request.role'}=~/^(su|dc|ad|li)/) {
-        $function='admin';
+    my $result;
+    if ($command eq 'newcourseinit') {
+        $result = &store_courseinit_setting($uname,$udom,$cid,$initpage);
     }
 
-    my %threshold = (
-                      av_attempts => 2,
-                      degdiff => 0.5,
-                      numstudents => 2,
-                     );
+    my %threshold = ();
+    my %pagedesc = &Apache::lonlocal::texthash (
+                     firstres => 'First resource',
+                     whatsnew => "What's New Page",
+                     userpref => 'user preference',
+                     coursespecific => $lctype.' only',
+                     default => 'default',
+                   );
 
-    my $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
-    my $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
+    my ($initcontrol,$initdisp) = &curr_courseinit();
+    my $currinit = $pagedesc{$initdisp}.' ('.$pagedesc{$initcontrol}.')';
 
-    unless ($env{'request.course.id'}) {
-        $r->print('<br /><b><center>You are accessing an invalid course.</center></b><br /><br />');
+    unless ($cid) {
+        $r->print('<p><span style="text-align: center; font-weight: bold;">'.$lt{'yacc'}.'</span></p>');
         return;
     }
-    if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
-	    &GDBM_READER(),0640)) {
-	my $furl=$bighash{'first_url'};
-	$r->print('<font size="+1"><a href="'.$furl.'">Go to first resource</a></font><a href="/adm/preferences?action=changecourseinit"></font><br />Change your preferences</a> to suppress display of this screen when accessing courses as Course Coordinator in the future.<br /><hr />');
-	untie(%bighash);
+
+    my $header = '';
+    if ($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'},'"<>&');
+            untie(%bighash);
+            $header .= '<b><a href="'.$furl.'">'.$lt{'gtfr'}.
+                  '</a></b><br />';
+        }
     }
+    $header .= &mt('Page set to be displayed after you have selected a role in this '.$lctype).'.'
+              .' <span class="LC_nobreak">'
+              .&mt('Currently: [_1].','<i>'.$currinit.'</i>')
+              .'&nbsp;&nbsp;'
+              .&mt('[_1]Change[_2] for just [_3]this '.$lctype.'[_4] or for [_5]all your courses/communities[_6].'
+                  ,'<b>'
+                  ,'</b>'
+                  ,'<a href="/adm/whatsnew?command=courseinit&amp;refpage='.$refpage.'">'
+                  ,'</a>'
+                  ,'<a href="/adm/preferences?action=changecourseinit&amp;refpage='.$refpage.'">'
+                  ,'</a>')
+              .' </span>';
 
-    my $result;
+    $r->print(&Apache::loncommon::head_subbox($header));
 
     if ($command eq 'reset') {
         $result = &process_reset($cdom,$crs);
     } elsif ($command eq 'update') {
-        $result = &process_update($cdom,$crs,$threshold_titles);
+        $result = &process_update($uname,$udom,$threshold_titles);
+    } elsif ($command eq 'newinterval') {
+        $result = &store_interval_setting($uname,$udom,$cid,$interval_titles);
+    } elsif ($command eq 'newdiscconf') {
+        $result = &store_discussion_setting($uname,$udom,$cid);
+    }
+
+    my $store_result=&store_display_settings($uname,$udom,$cid,$checkallowed);
+
+    unless ($store_result eq 'ok') { 
+        &Apache::lonnet::logthis('Error saving whatsnew settings: '.
+            $store_result.' for '.'user '.$uname.':'.$udom.' in '.$lctype.' '.$cid);
+        $result .= '<span class="LC_error">'
+                  .&mt('Unable to save visibility settings due to [_1]',
+                       $store_result)
+                  .'</span>';
     }
+
     if ($result) {
-        $r->print($result.'<hr width="100%" />');
+        $r->print($result.'<hr />');
     }
+    $r->rflush();
 
-    &get_curr_thresholds(\%threshold,$cdom,$crs);
-    &getitems(\%unread,\%ungraded,\%bombed,\%triggered,\@newdiscussions,\@tograde,\@bombs,\@warnings,$rowColor1,$rowColor2,\%threshold,$cdom,$crs,%res_title);
-    my ($msgcount,$critmsgcount) = &getmail(\@newmsgs,\@critmsgs);
+    my (%timediff,%interval);
+    my %display_settings = &get_display_settings($uname,$udom,$cid);
+    $timediff{'versions'} = $display_settings{$cid.':interval'};
+    unless (defined($timediff{'versions'})) { $timediff{'versions'} = 604800; } 
+    $interval{'versions'} = $interval_titles->{'versions'}->{$timediff{'versions'}};
+
+    my %headings = &Apache::lonlocal::texthash(
+                coursediscussion => 'Unread '.$lctype.' discussion posts',
+                handgrading      => 'Problems requiring handgrading',
+                haserrors        => 'Problems with errors',
+                coursenormalmail => 'New '.$lctype.' messages',
+                coursecritmail   => 'New critical messages in '.$lctype,
+    );
 
-    $r->print('<br /><table border="0" width="100%" cellpadding="2" cellspacing="4"><tr><td align="left" valign="top" width="45%">');
+    if ($timediff{'versions'} == -1) {
+        $headings{'versionchanges'} = &mt('Resources in '.$lctype.' with version changes since start of '.$lctype);
+    } elsif ($timediff{'versions'} == 2592000) {
+        $headings{'versionchanges'} = &mt('Resources in '.$lctype.' with version changes since last month');
+    } elsif ($timediff{'versions'} == 604800) {
+        $headings{'versionchanges'} = &mt('Resources in '.$lctype.' with version changes since last week');
+    } elsif ($timediff{'versions'} == 86400) {
+        $headings{'versionchanges'} = &mt('Resources in '.$lctype.' with version changes since yesterday');
+    }
 
-## UNGRADED ITEMS ##
-    $r->print(<<END);
-           <table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000" width="100%">
-            <tr><td>
-             <table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000" width="100%">
-              <tr>
-               <td bgcolor="$tabbg"><b>Problems requiring handgrading</b></td></tr>
-                  <tr>
-                   <td bgcolor="#ffffff">
-                     <table cellpadding="2" cellspacing="0" border="0" width="100%">
-END
+    $timediff{'oldroles'} = $display_settings{$cid.':oldroleinterval'};
+    unless (defined($timediff{'oldroles'})) { $timediff{'oldroles'} = 604800; }
+    $interval{'oldroles'} = $interval_titles->{'oldroles'}->{$timediff{'oldroles'}};
 
-    if (@tograde > 0) {
-        $r->print('<tr bgcolor="#cccccc"><td><b><small>Problem Name</small></b></td><td align="right"><b><small>Number ungraded</small></b></td></tr>');
-        my $rowNum = 0;
-        foreach my $res (@tograde) {
-            if ($rowNum %2 == 1) {
-                $rowColor = $rowColor1;
-            } else {
-                $rowColor = $rowColor2;
-            }
-            my ($map,$id,$url)=&Apache::lonnet::decode_symb($res);
-            my $linkurl=&Apache::lonnet::clutter($url);
-            $linkurl .= '?symb='.&Apache::lonnet::escape($res);
+    if ($timediff{'oldroles'} == -1) {
+        $headings{'oldroles'} = &mt('Roles for which access to '.$lctype.' has expired since start of '.$lctype);
+    } elsif ($timediff{'oldroles'} == 2592000) {
+        $headings{'oldroles'} = &mt('Roles for which access to '.$lctype.' has expired since last month');
+    } elsif ($timediff{'oldroles'} == 604800) {
+        $headings{'oldroles'} = &mt('Roles for which access to '.$lctype.' has expired since last week');
+    } elsif ($timediff{'oldroles'} == 86400) {
+        $headings{'oldroles'} = &mt('Roles for which access to '.$lctype.' has expired since yesterday');
+    }
 
-            $r->print('<tr bgcolor="'.$rowColor.'"><td><a href="'.$linkurl.'"><small>'.$ungraded{$res}{title}.'</small></a></td><td align="right"><small>'.$ungraded{$res}{count}.'</small></td></tr>');
-            $rowNum ++;
-        }
-    } else {
-        $r->print('<tr><td bgcolor="#ffffff"><br><center><i><b><small>&nbsp;&nbsp;No problems require handgrading&nbsp;&nbsp;</small><br><br></b></i></td></tr>');
+    $timediff{'newroles'} = $display_settings{$cid.':newroleinterval'};
+    unless (defined($timediff{'newroles'})) { $timediff{'newroles'} = 604800; }
+    $interval{'newroles'} = $interval_titles->{'newroles'}->{$timediff{'newroles'}};
+
+    if ($timediff{'newroles'} == -1) {
+        $headings{'newroles'} = &mt('Roles for which access to '.$lctype.' has become available since start of '.$lctype);
+    } elsif ($timediff{'newroles'} == 2592000) {
+        $headings{'newroles'} = &mt('Roles for which access to '.$lctype.' has become available since last month');
+    } elsif ($timediff{'newroles'} == 604800) {
+        $headings{'newroles'} = &mt('Roles for which access to '.$lctype.' has become available since last week');
+    } elsif ($timediff{'newroles'} == 86400) {
+        $headings{'newroles'} = &mt('Roles for which access to '.$lctype.' has become available since yesterday');
     }
-    $r->print('</table></td></tr></table></td></tr></table><br />');
 
-## BOMBS ##
-     $r->print(<<"END");
-           <table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000" width="100%">
-            <tr>
-             <td>
-               <table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000" width="100%">
-               <tr>
-                <td bgcolor="$tabbg"><b>Problems with errors</b></td>
-               </tr>
-                <tr>
-                <td bgcolor="#ffffff">
-                 <table width="100%" cellspacing="0" cellpadding="0" border="0">
-END
-     my $bombnum = 0;
-     if (@bombs > 0) {
-        $r->print('<tr bgcolor="#cccccc"><td><b><small>Resource</small></b></td><td align="right"><b><small>Number of errors</small></b></td></tr>');
-        @bombs = sort { &cmp_title($a,$b,\%res_title) } @bombs;
-        foreach my $bomb (@bombs) {
-            if ($bombnum %2 == 1) {
-		$rowColor = $rowColor1;
-            } else {
-                $rowColor = $rowColor2;
-            }
-            $r->print('<tr bgcolor="'.$rowColor.'"><td><small>'.$bombed{$bomb}{errorlink}.'</small></td><td align="right"><small>'.$bombed{$bomb}{errorcount}.'</small></td></tr>');
-            $bombnum ++;
-        }
-    } else {
-        $r->print('<tr><td bgcolor="#ffffff"><br /><center><b><i><small>No problems with errors</small></i></b></center><br /></td></tr>');
+    $timediff{'crslogin'} = $display_settings{$cid.':crslogininterval'};
+    unless (defined($timediff{'crslogin'})) { $timediff{'crslogin'} = 604800; }
+    $interval{'crslogin'} = $interval_titles->{'crslogin'}->{$timediff{'crslogin'}};
+
+    if ($timediff{'crslogin'} == -1) {
+        $headings{'crslogin'} = &mt('Last login for anyone who has ever logged in');
+    } elsif ($timediff{'crslogin'} == 2592000) {
+        $headings{'crslogin'} = &mt('Last login for users in last 30 days');
+    } elsif ($timediff{'crslogin'} == 604800) {
+        $headings{'crslogin'} = &mt('Last login for users in last 7 days');
+    } elsif ($timediff{'crslogin'} == 86400) {
+        $headings{'crslogin'} = &mt('Last login for users in last 24 hours');
     }
-    $r->print('</table></td></tr></table></td></tr></table><br />');
 
-# DEGDIFF AND AV. TRIES TRIGGERS
-    $r->print(<<"END");
-           <table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000" width="100%">
-            <tr>
-             <td>
-               <table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000" width="100%">
-               <tr>
-                <td bgcolor="$tabbg"><b>Problems with av. attempts &ge; $threshold{'av_attempts'} or deg. difficulty &ge; $threshold{'degdiff'}<br /> and total number of students with submissions &ge; $threshold{'numstudents'}</b></td>
-               </tr>
-               <tr>
-                <td bgcolor="$tabbg" align="right"><a href="/adm/whatsnew?command=chgthreshold"><b><small>Change thresholds?</small></b></a></td>
-               </tr>
-                <tr>
-                <td bgcolor="#ffffff">
-                 <table width="100%" cellspacing="2" cellpadding="2" border="0">
-END
-    my $warningnum = 0;
-    if (@warnings > 0) {
-        @warnings = sort { &cmp_title($a,$b,\%res_title) } @warnings;
-        $r->print('<form name="reset_tracking" method="post">'.
-                 '  <input type="hidden" name="action" value="reset" />'."\n");
-        $r->print('<tr bgcolor="#cccccc"><td><b><small>Resource</small></b></td><td align="right"><b><small>Part</small></b></td><td align="right"><b><small>Num. students</small></b></td><td align="right"><b><small>Av. Attempts</small></b></td><td align="right"><b><small>Deg. Diff</small></b></td><td align="right"><b><small>Last Reset</small></b></td><td align="right"><b><small>Reset Count?</small></b></td></tr>');
-        foreach my $res (@warnings) {
-            if ($warningnum %2 == 1) {
-                $rowColor = $rowColor1;
-            } else {
-                $rowColor = $rowColor2;
-            }
-            my ($map,$id,$url)=&Apache::lonnet::decode_symb($res);
-            my $linkurl=&Apache::lonnet::clutter($url);
-            my $rowspan;
-            if ($triggered{$res}{numparts} > 1) {
-                $rowspan = 'rowspan="'.$triggered{$res}{numparts}.'"';
-            }
-            $linkurl .= '?symb='.&Apache::lonnet::escape($res);
-            $r->print('<tr bgcolor="'.$rowColor.'"><td '.$rowspan.'><a href="'.$linkurl.'"><small>'.$triggered{$res}{title}.'</small></a></td>'.$triggered{$res}{text});
-            $warningnum ++;
-        }
-        $r->print('<tr bgcolor="#cccccc"><td colspan="7" align="right"><br /><b><small><input type="submit" name="counters" value="Reset counters to 0" /></form>'); 
-    } else {
-        $r->print('<tr><td bgcolor="#ffffff"><br /><center><b><i><small>No problems satisfy threshold criteria.</small></i></b></center><br /></td></tr>');
-    }
-    $r->print('</table></td></tr></table></td></tr></table><br />');
-
-    $r->print('</td><td width="5%">&nbsp;</td><td align="left" valign="top" width-"50%">');
-
-## UNREAD COURSE DISCUSSION POSTS ##
-    $r->print(<<"END");
-              <table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000" width="100%">
-               <tr><td>
-                <table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000" width="100%">
-                 <tr>
-                  <td bgcolor="$tabbg"><b>Unread course discussion posts</b></td>
-                 </tr>
-                 <tr>
-                   <td bgcolor="#ffffff">
-                   <table cellpadding="2" cellspacing="0" border="0" width="100%">
-END
-                                                                                  
-    if (@newdiscussions > 0) {
-        $r->print('<tr bgcolor="#cccccc"><td><b><small>Location</small></b></td><td><b><small>Type</small></b><td align="right"><b><small>Number of new posts</small></b></td></tr>');
-        @newdiscussions = sort { &cmp_title($a,$b,\%res_title) } @newdiscussions;
-        my $rowNum = 0;
-        foreach my $ressymb (@newdiscussions) {
-            my $forum_title = $unread{$ressymb}{'title'};
-            my $type = 'Resource';
-            my $feedurl=&Apache::lonfeedback::get_feedurl($ressymb);
-            if ($feedurl =~ /bulletinboard/) {
-                $type = 'Bulletin Board';
-            }
-            my $unreadnum = keys(%{$unread{$ressymb}});
-            $unreadnum = $unreadnum - 2;
-            if ($unreadnum > 0) {
-                if ($rowNum %2 == 1) {
-                    $rowColor = $rowColor1;
-                } else {
-                    $rowColor = $rowColor2;
-                }
-                $r->print('<tr bgcolor="'.$rowColor.'"><td><small><a href="'.$feedurl.'?symb='.$unread{$ressymb}{symb}.'">'.$forum_title.'</a>&nbsp;</td><td><small>'.$type.'</small></td><td align="right">'.$unreadnum.'&nbsp;</td></tr>');
-                $rowNum ++;
+    my $now = time;
+    if ($timediff{'versions'} == -1) {
+        $timediff{'versions'} = time;
+    }
+    my $starttime = $now - $timediff{'versions'};
+
+    if ($timediff{'newroles'} == -1) {
+        $timediff{'newroles'} = time;
+    }
+    my $activatedstart = $now - $timediff{'newroles'};
+
+    if ($timediff{'oldroles'} == -1) {
+        $timediff{'oldroles'} = time;
+    }
+    my $expiredstart = $now - $timediff{'oldroles'};
+
+    if ($timediff{'crslogin'} == -1) {
+        $timediff{'crslogin'} = time;
+    }
+
+    my $crsloginstart = $now - $timediff{'crslogin'};
+
+    my $countunread = $display_settings{$cid.':countunread'};
+    unless (defined($countunread)) {
+        $countunread = 'on';
+    }
+    if ($$checkallowed{'abovethreshold'}) {
+        &get_curr_thresholds(\%threshold,$uname,$udom,$cid,$cdom,$crs);
+    }
+
+    $headings{'abovethreshold'} = 
+	&mt('(Problems with av. attempts &ge; [_1] or deg. difficulty &ge; [_2]) [_3] and total number of '.$stulabel{$crstype}.' with submissions &ge; [_4]',
+	    $threshold{'av_attempts'},$threshold{'degdiff'},
+	    '<br />',$threshold{'numstudents'});
+
+    my @actionorder = ('handgrading','haserrors','abovethreshold','versionchanges','coursediscussion','coursenormalmail','coursecritmail','newroles','oldroles','crslogin');
+
+    foreach my $key (keys(%{$checkallowed})) {
+	if ($key =~ /_section$/) { next; }
+        $show{$key} = 0;
+        if ($$checkallowed{$key}) {
+            unless ($display_settings{$cid.':'.$key} eq 'hide') {
+                $show{$key} = 1;
             }
         }
-    } else {
-        $r->print('<tr><td bgcolor="#ffffff"><br><center>&nbsp;<i><b><small>No unread posts in course discussions</small></b></i><br><br></td></tr>');
     }
-    $r->print('</table></td></tr></table></td></tr></table><br />');
 
-## MESSAGES ##
-    $r->print(<<END);
-           <table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000" width="100%">
-            <tr>
-             <td>
-              <table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000" width="100%">
-               <tr>
-                <td bgcolor="$tabbg"><b>New course messages</b></td>
-               </tr>
-               <tr>
-                <td bgcolor="#ffffff">
-                 <table width="100%" cellspacing="0" cellpadding="0" border="0">
-END
-    if ($msgcount > 0) {
-        $r->print('<tr bgcolor="#cccccc"><td><b><small>'.&mt('Number').'</small></b></td><td><b><small>'.&mt('Subject').'</small></b></td><td><b><small>'.&mt('Sender').'</small></b></td><td><b><small>'.&mt('Date/Time').'</small></b></td></tr>');
-        my $rowNum = 0;
-        my $mailcount = 1; 
-        foreach my $msg (@newmsgs) {
-            if ($rowNum %2 == 1) {
-                $rowColor = $rowColor1;
-            } else {
-                $rowColor = $rowColor2;
+    foreach my $item (@actionorder) {
+        unless ($item eq 'coursenormalmail' || $item eq 'coursecritmail' ||
+                $item eq 'newroles' || $item eq 'oldroles') {
+            if ($show{$item}) {
+                $needitems = 1;
+                last;
             }
-            $r->print('<tr bgcolor="'.$rowColor.'"><td valign="top"><small>'.$mailcount.'. &nbsp;<small></td><td valign="top"><small><a href="/adm/communicate">'.$msg->{'shortsub'}.'</a>&nbsp; &nbsp;</small></td><td valign="top"><small>&nbsp;'.$msg->{'from'}.'@'.$msg->{'fromdom'}.'&nbsp;</small></td><td valign="top"><small>'.$msg->{'sendtime'}.'</small></td></tr>');
-            $rowNum ++;
-            $mailcount ++;
         }
-    } else {
-        $r->print('<tr><td bgcolor="#ffffff" width="100%"><center><br /><b><i><small>No new course messages</small></i></b><br /><br /></center></td></tr>');
     }
 
-    $r->print('</table></td></tr></table></td></tr></table><br />');
+    my $itemserror;
+    if ($needitems) {
+        $itemserror = &getitems(\%unread,\%ungraded,\%bombed,\%triggered,\%changed,\@newdiscussions,\@tograde,\@bombs,\@warnings,\%threshold,$cdom,$crs,\%res_title,\%show,$starttime,$countunread);
+    }
+    if ($show{'coursenormalmail'}) {
+        $msgcount = &getnormalmail(\@newmsgs);
+    }
+    if ($show{'coursecritmail'}) {
+        $critmsgcount = &getcritmail(\@critmsgs);
+    }
+    if ($show{'oldroles'}) {
+        $expirecount = &getexpired(\%expired,$expiredstart,'previous');
+    }
+    if ($show{'newroles'}) {
+        $activecount = &getactivated(\%activated,$activatedstart,'active');
+    }
+    if ($show{'crslogin'}) {
+        $logincount = &getloggedin($cdom,$crs,\%loggedin,$crsloginstart);
+    }
+    $r->print(qq|<a href="javascript:changeAll('hide');">$lt{'hial'}</a>
+     &nbsp;&nbsp;<a href="javascript:changeAll('show');">$lt{'shal'}</a>
+     <form method="post" name="visible" action="/adm/whatsnew">\n|);
+    foreach my $item (keys(%{$checkallowed})) {
+	if ($item =~ /_section$/) { next; }
+        if ($$checkallowed{$item}) {
+            $r->print('<input type="hidden" name="display_'.$item.'" />'."\n");
+        }
+    }
 
-    $r->print(<<END);
-           <table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000" width="100%">
-            <tr>
-             <td>
-              <table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000" width="100%">
-               <tr>
-                <td bgcolor="$tabbg"><b>New critical messages in course</b></td>
-               </tr>
-               <tr>                 <td bgcolor="#ffffff">
-                 <table width="100%" cellspacing="0" cellpadding="0" border="0">
-END
+    $r->print('<input type="hidden" name="refpage" value="'.$refpage.'" /><table class="LC_double_column"><tr><td class="LC_left_col">');
 
-    if ($critmsgcount > 0) {
-        $r->print('<tr bgcolor="#cccccc"><td><b><small>Number</small></b></td><td><b><small>Subject</small></b></td><td><b><small>Sender</small></b></td><td><b><small>Date/Time</small></b></td></tr>');
-        my $rowNum = 0;
-        my $mailcount = 1;
-        foreach my $msg (@critmsgs) {
-            if ($rowNum %2 == 1) {
-                $rowColor = $rowColor1;
-            } else {
-                $rowColor = $rowColor2;
+    my $displayed = 0;
+    my $totalboxes = 0;
+    foreach my $key (keys(%{$checkallowed})) {
+	if ($key =~ /_section$/) { next; }
+	if ($key eq 'whatsnew' ) { next; } # whatsnew check creates no box
+        if ($$checkallowed{$key}) {
+            $totalboxes ++;
+        }
+    }
+    my $halfway = 4;
+#    my $halfway = int($totalboxes/2) + $totalboxes%2;
+    foreach my $actionitem (@actionorder) {
+        if ($$checkallowed{$actionitem}) {
+            if ($displayed == $halfway) {
+                $r->print('</td><td>&nbsp;</td><td class="LC_right_col" >');
             }
-            $r->print('<tr bgcolor="'.$rowColor.'"><td valign="top"><small>'.$mailcount.'. &nbsp;<small></td><td valign="top"><small><a href="/adm/mail?">'.$msg->{'shortsub'}.'</a>&nbsp; &nbsp;</small></td><td valign="top"><small>&nbsp;'.$msg->{'from'}.'@'.$msg->{'fromdom'}.'&nbsp;</small></td><td valign="top"><small>'.$msg->{'sendtime'}.'</small></td></tr>');
-            $rowNum ++;
-            $mailcount ++;
+            &display_launcher($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);
+            $displayed ++; 
         }
-    } else {
-        $r->print('<tr><td bgcolor="#ffffff" width="100%"><center><br /><b><i><small>No unread critical messages in course</small></i></b><br /><br /></center></td></tr>');
     }
-                                                                               
-    $r->print('</table></td></tr></table></td></tr></table><br />');
-
     $r->print('
-           </table>
-          </td>
-         </tr>
-        </table>');
-    $r->print('</td></tr></table>');
+      </td>
+    </tr>
+   </table>
+   </form>
+');
 }
 
 #-------------------------------
-# display_config_box
+# display_threshold_config
 #
 # Display the threshold setting screen 
 #
 #-------------------------------
                                                                                 
-sub display_config_box() {
-    my ($r,$command,$tabbg,$threshold_titles,$cdom,$crs) = @_;
+sub display_threshold_config {
+    my ($r,$refpage,$threshold_titles,$cdom,$crs) = @_;
+    my $uname = $env{'user.name'};
+    my $udom = $env{'user.dom'};
+    my $cid = $env{'request.course.id'};
     my %threshold = ();
     my $rowColor1 = "#ffffff";
     my $rowColor2 = "#eeeeee";
     my $rowColor;
 
     my @thresholditems = ("av_attempts","degdiff","numstudents");
-    my %threshold_titles = (
+    my %threshold_titles = &Apache::lonlocal::texthash(
                          av_attempts => 'Average number of attempts',
                          degdiff => 'Degree of difficulty',
                          numstudents => 'Total number of students with submissions',
                          );
-    &get_curr_thresholds(\%threshold,$cdom,$crs);
+    &get_curr_thresholds(\%threshold,$uname,$udom,$cid,$cdom,$crs);
 
-    $r->print('<br /><form name="thresholdform" method="post"><table border="0" cellpadding="2" cellspacing="4"><tr><td align="left" valign="top" width="45%">
-           <table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000">
-            <tr>
-             <td>
-               <table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000">
-                <tr>
-                <td bgcolor="#ffffff">
-                 <table cellspacing="0" cellpadding="4" border="0">
-     <tr bgcolor="'.$tabbg.'">
-      <th>Threshold Name</th>
-      <th>Current value</th>
-      <th>Change?</th>
-     </tr>');
-    my $rowNum =0;
+    $r->print('<br /><form name="thresholdform" method="post" action="/adm/whatsnew">'.
+              &Apache::loncommon::start_data_table().
+              &Apache::loncommon::start_data_table_header_row().
+             '<th>'.&mt('Threshold Name').'</th>'."\n".
+             '<th>'.&mt('Current value').'</th>'."\n".
+             '<th>'.&mt('Change?').'</th>'."\n".
+              &Apache::loncommon::end_data_table_header_row());
     foreach my $type (@thresholditems) {
-        my $parameter = 'internal.threshold_'.$type;
+        my $parameter = $env{'request.course.id'}.':threshold_'.$type;
 # onchange is javascript to automatically check the 'Set' button.
         my $onchange = 'onFocus="javascript:window.document.forms'.
               "['thresholdform'].elements['".$parameter."_setparmval']".
               '.checked=true;"';
-        if ($rowNum %2 == 1) {
-            $rowColor = $rowColor1;
-        } else {
-            $rowColor = $rowColor2;
-        }
-        $r->print('
-     <tr bgcolor="'.$rowColor.'">
-      <td>'.$threshold_titles{$type}.'</td>
-      <td>'.&Apache::lonhtmlcommon::textbox($parameter.'_value',
+        $r->print(&Apache::loncommon::start_data_table_row()."\n".
+                 '<td>'.$threshold_titles{$type}.'</td>'."\n".
+                 '<td>'.&Apache::lonhtmlcommon::textbox($parameter.'_value',
                                             $threshold{$type},
-                                            10,$onchange).'</td>
-      <td>'
-           .&Apache::lonhtmlcommon::checkbox($parameter.'_setparmval').
-      '</td>
-     </tr>');
-        $rowNum ++;
-    }
-    $r->print('</table></td></tr></table></td></tr></table>
-           <br /><input type="submit" name="threshold" value="Make changes" />
-                 <input type="hidden" name="action" value="update" />
+                                            10,$onchange).'</td>'."\n".
+                 '<td>'.
+                 &Apache::lonhtmlcommon::checkbox($parameter.'_setparmval').
+                 '</td>'."\n".
+                 &Apache::loncommon::end_data_table_row());
+    }
+    $r->print(&Apache::loncommon::end_data_table()."\n".
+          '<br /><input type="submit" name="threshold" value="'.&mt('Save').'" />
+                 <input type="hidden" name="command" value="update" />
+                 <input type="hidden" name="refpage" value="'.$refpage.'" />
+               </form>');
+}
+
+#-------------------------------
+# display_interval_config
+#
+# Display the interval setting screen
+#
+#-------------------------------
+                                                                                   
+sub display_interval_config {
+    my ($r,$refpage,$interval_titles,$context) = @_;
+    my $setting = 'interval';
+    if ($context eq 'oldroles') {
+        $setting = 'oldroleinterval';
+    } elsif ($context eq 'newroles') {
+        $setting = 'newroleinterval'; 
+    }
+    my $lctype = lc(&Apache::loncommon::course_type());
+    my $current = &get_current($env{'user.name'},$env{'user.domain'},
+                                $env{'request.course.id'},$setting);
+    if ($context eq 'oldroles') {
+        $r->print('<br />'.&mt('Choose the time window to use to display roles for which access to the '.$lctype.' expired.').'<br />');
+    } elsif ($context eq 'newroles') {
+        $r->print('<br />'.&mt('Choose the time window to use to display roles for which access to the '.$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 />');
+    } else {
+        $r->print('<br />'.&mt('Choose the time window to use to display resources in the '.$lctype.' with version changes.').'<br />');
+    }
+    unless ($current eq '') {
+        if (ref($interval_titles->{$context}) eq 'HASH') {
+            $r->print(' '.&mt('Current value is "[_1]".','<b>'.
+                      $interval_titles->{$context}->{$current}.'</b>').'<br />');
+        }
+    }
+    $r->print('<br />
+<form method="post" name="intervalswitch" action="/adm/whatsnew">
+<input type="hidden" name="command" value="newinterval" />
+<input type="hidden" name="intervaltype" value="'.$context.'" />
+<input type="hidden" name="refpage" value="'.$refpage.'" />'.
+&mt('Display:').' 
+<select name="interval">
+<option value="" selected="selected">'.&mt('Select').'</option>
+');
+    if (ref($interval_titles) eq 'HASH') {
+        if (ref($interval_titles->{$context}) eq 'HASH') {
+            foreach my $key (reverse sort ({$a cmp $b} (keys(%{$interval_titles->{$context}})))) {
+                $r->print('<option value="'.$key.'">'.&mt($interval_titles->{$context}->{$key}).
+                          '</option>'."\n");
+            }
+        }
+    }
+    $r->print('</select>&nbsp;&nbsp;
+               <input type="submit" name="display" value="'.
+               &mt('Save').'" /></form>');
+    return;
+}
+
+#----------------------------------------------
+# display_discussion_config
+#
+# Display the discussion display setting screen
+#
+#----------------------------------------------
+                                                                                  
+sub display_discussion_config {
+    my ($r,$refpage) = @_;
+    my $current = &get_current($env{'user.name'},$env{'user.domain'},
+                                $env{'request.course.id'},'countunread');
+    if ($current eq '') {
+        $current = 'on';
+    }
+    my %opposite = ( 
+                      'on' => 'off',
+                      'off' => 'on',
+                    );
+    $r->print('<script type="text/javascript">
+function toggle_countunread(choice) {
+    if (choice == "unchanged") {
+        document.discussionswitch.command.value = "";
+    }
+    document.discussionswitch.submit();
+}
+</script>');
+    $r->print('<br />'
+             .&mt('Choose whether or not to display a count of the number of new posts for each resource or discussion board which has unread posts.')
+             .'<br />'
+             .&mt("This can increase the time taken to gather data for the [_1]What's New Page[_2] by a few seconds.",'<i>','</i>')
+             .'&nbsp;&nbsp;'
+             .&mt('Currently set to [_1].','<b>'.$current.'</b>.')
+    );
+    $r->print('<br /><br />
+<form method="post" name="discussionswitch" action="/adm/whatsnew">
+<input type="hidden" name="command" value="newdiscconf" />
+<input type="hidden" name="refpage" value="'.$refpage.'" />
+<input type="hidden" name="countunread" value="'.$opposite{$current}.'" />
+');
+    $r->print('<br/>
+               <input type="button" name="display" value="'.
+               &mt('Change to [_1]',&mt($opposite{$current})).'" 
+               onclick="javascript:toggle_countunread('."'change'".')" />'.
+               ('&nbsp;' x7).
+               '<input type="button" name="nochange" value="'.
+               &mt("No change").'" 
+               onclick="javascript:toggle_countunread('."'unchanged'".')" />
                </form>');
+    return;
+}
+
+#---------------------------------------------------
+# courseinit_config
+#
+# Set page displayed when course loads after 
+# selecting a role in the course from the roles page. 
+#
+#---------------------------------------------------
+
+sub courseinit_config {
+    my ($r,$refpage,$initpage) = @_;
+    my ($control,$current) = &curr_courseinit();
+    my @chgstate = ('userpref','coursespecific');
+    my @chgentry = ('firstres','whatsnew');
+    my $lctype = lc(&Apache::loncommon::course_type());
+    my %lt = &Apache::lonlocal::texthash(
+                             'chwp' => "Choose which page will be displayed when you enter this $lctype after selecting a role.",
+                             'cuva' => 'Current value is determined by',
+                             'anis' => 'and is set to display',
+                             'padc' => 'Page display controlled by',
+                             'chce' => 'Choose '.$lctype.' entry',
+                             'moce' => 'Save',
+    );
+    $r->print(<<"END"); 
+<br />$lt{'chwp'}
+<br />$lt{'cuva'}: <b>
+$$initpage{$control}</b> $lt{'anis'} <b>
+$$initpage{$current}</b>.<br /><br />
+<form method="post" name="courseinitswitch" action="/adm/whatsnew">
+<input type="hidden" name="command" value="newcourseinit" />
+<input type="hidden" name="refpage" value="$refpage" />
+$lt{'padc'}:&nbsp;&nbsp;
+END
+    foreach my $choice (@chgstate) {
+        my $chkstring;
+        if ($choice eq $control) {
+            $chkstring = ' checked="checked" ';
+        }  
+        $r->print('<span class="LC_nobreak"><label><input type="radio" name="courseinit_control" value="'.
+                   $choice.'"'.$chkstring.'/>'.$$initpage{$choice}.
+                   '&nbsp;&nbsp;</label></span>');
+    }
+    $r->print('<br /><br />'.&mt('If').' '.$$initpage{'coursespecific'}.
+              ' - <br />'.$lt{'chce'}.": \n");
+    foreach my $choice (@chgentry) {
+        my $chkstring;
+        if (($choice eq $current) && ($control eq 'coursespecific')) {
+            $chkstring = ' checked="checked" ';
+        }
+        $r->print('<span class="LC_nobreak"><label><input type="radio" name="courseinit_page" value="'.
+                  $choice.'"'.$chkstring.'/>'.$$initpage{$choice}.
+                  '&nbsp;&nbsp;</label></span>');
+    }
+    $r->print('<br /><br /><input type="submit" name="display" value="'.
+               $lt{'moce'}.'" /></form>');
+    return;
+}
+
+sub curr_courseinit {
+    my $current = &get_current($env{'user.name'},$env{'user.domain'},
+                                $env{'request.course.id'},'courseinit');
+    my $control;
+    if ($current) {
+        $control = 'coursespecific';
+    } else {
+        $control = 'userpref';
+        my %userenv = &Apache::lonnet::get('environment',
+                                                      ['course_init_display']);
+        if (exists($userenv{'course_init_display'})) {
+            $current = $userenv{'course_init_display'};
+        }
+        unless ($current) {
+            $current = 'whatsnew';
+        }
+    }
+    return ($control,$current);
+}
+
+sub display_launcher {
+    my ($r,$action,$refpage,$checkallowed,$show,$headings,$res_title,
+        $tograde,$ungraded,$bombs,$bombed,$changed,$warnings,$triggered,
+        $newdiscussions,$unread,$msgcount,$newmsgs,$critmsgcount,$critmsgs,
+        $interval,$countunread,$expired,$expirecount,$activated,$activecount,
+        $crstype,$itemserror,$loggedin,$logincount) = @_;
+
+    if ($$checkallowed{$action}) {
+        &start_box($r,$show,$headings,$action,$refpage);
+        if ($$show{$action}) {
+            if ($action eq 'handgrading') {    # UNGRADED ITEMS
+                &display_handgrade($r,$tograde,$ungraded,$itemserror);
+            } elsif ($action eq 'haserrors') { # BOMBS
+                &display_haserrors($r,$bombs,$bombed,$res_title,$itemserror);
+            } elsif ($action eq 'versionchanges') { # VERSION CHANGES
+                &display_versionchanges($r,$changed,$res_title,$interval->{'versions'},$itemserror);
+            } elsif ($action eq 'abovethreshold') { # DEGDIFF/AV. TRIES TRIGGERS
+                &display_abovethreshold($r,$refpage,$warnings,$triggered,
+					$res_title,$itemserror);
+            } elsif ($action eq 'coursediscussion') { # UNREAD COURSE DISCUSSION
+                &display_coursediscussion($r,$newdiscussions,$unread,
+                                $countunread,$res_title,$itemserror);
+            } elsif ($action eq 'coursenormalmail') { # NORMAL MESSAGES
+                &display_coursenormalmail($r,$msgcount,$newmsgs);
+            } elsif ($action eq 'coursecritmail') { # CRITICAL MESSAGES
+                &display_coursecritmail($r,$critmsgcount,$critmsgs);
+            } elsif ($action eq 'newroles') { # ACTIVATED ROLES
+                &display_rolechanges($r,$activecount,$activated,$interval->{'newroles'},
+                                     $crstype);
+            } elsif ($action eq 'oldroles') { # EXPIRED ROLES
+                &display_rolechanges($r,$expirecount,$expired,$interval->{'oldroles'},
+                                     $crstype);
+            } elsif ($action eq 'crslogin') { #LAST LOGIN
+                &display_crslogins($r,$logincount,$loggedin,$interval->{'crslogin'},
+                                   $crstype);
+            }
+        }
+        &end_box($r);
+    }
+    return;
 }
 
 sub getitems {
-    my ($unread,$ungraded,$bombed,$triggered,$newdiscussions,$tograde,$bombs,$warnings,$rowColor1,$rowColor2,$threshold,$cdom,$crs,$res_title) = @_;
+    my ($unread,$ungraded,$bombed,$triggered,$changed,$newdiscussions,
+        $tograde,$bombs,$warnings,$threshold,$cdom,$crs,$res_title,$show,
+        $starttime,$countunread) = @_;
     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>';
+        return $itemserror;
+    }
     # force retrieve Resource to seed the part id cache we'll need it later
-    my @allres=$navmap->retrieveResources(undef,sub {if ($_[0]->is_problem) { $_[0]->parts();} return 1;});
-    my %discussiontime = &Apache::lonnet::dump('discussiontimes',$cdom,$crs);
-    my %lastread = &Apache::lonnet::dump('nohist_'.$env{'request.course.id'}.
-                '_discuss',$env{'user.domain'},$env{'user.name'},'lastread');
-    my %lastreadtime = ();
-    my @discussions = ();
-    my ($classlist,$keylist) = &Apache::loncoursedata::get_classlist();
-
-    my %resourcetracker =  &Apache::lonnet::dump('nohist_resourcetracker',
-               $cdom,$crs);
-    my $warningnum = 0;
-    foreach my $key (keys(%lastread)) {
-        my $newkey = $key;
-        $newkey =~ s/_lastread$//;
-        $lastreadtime{$newkey} = $lastread{$key};
+    my @allres=$navmap->retrieveResources(undef,
+                     sub {if ($_[0]->is_problem) { $_[0]->parts();} return 1;});
+    my %resourcetracker;
+    my $discussiontime;
+
+# Resource version changes
+    if ($$show{'versionchanges'}) {
+        &checkversions($cdom,$crs,$navmap,$changed,$starttime);
+    }
+
+    if ($$show{'abovethreshold'}) {
+        %resourcetracker =  &Apache::lonnet::dump('nohist_resourcetracker',
+                                                                   $cdom,$crs);
     }
+
     foreach my $resource (@allres) {
         my $result = '';
         my $applies = 0;
         my $symb = $resource->symb();
-#        %{$$bombed{$symb}} = ();
+        %{$$bombed{$symb}} = ();
         %{$$ungraded{$symb}} = ();
         %{$$triggered{$symb}} = ();
         $$triggered{$symb}{numparts} = 0;
+        if ($resource->encrypted()) {
+            $$triggered{$symb}{'enclink'} = $resource->link();
+            $$triggered{$symb}{'encsymb'} = $resource->shown_symb();
+        }
         my $title = $resource->compTitle();
         $$res_title{$symb} = $title;
         my $ressymb = $resource->wrap_symb();
-# Check for unread discussion postings
-	if ($resource->hasDiscussion()) {
-            push(@discussions,$ressymb);
-            my $prevread = 0;
-            my $unreadcount = 0;
-            %{$$unread{$ressymb}} = ();
-            $$unread{$ressymb}{'title'} = $title;
-            $$unread{$ressymb}{'symb'} = $symb;
-            if (defined($lastreadtime{$ressymb})) {
-                $prevread = $lastreadtime{$ressymb};
-            }
-            my %contrib = &Apache::lonnet::restore($ressymb,
-                             $env{'request.course.id'},$cdom,$crs);
-            if ($contrib{'version'}) {
-                for (my $id=1;$id<=$contrib{'version'};$id++) {
-                    unless (($contrib{'hidden'}=~/\.$id\./) || ($contrib{'deleted'}=~/\.$id\./)) {
-                        if ($prevread <$contrib{$id.':timestamp'}) {
-                            $$unread{$ressymb}{$unreadcount} = $id.': '.$contrib{$id.':subject'};
-                            $unreadcount ++;
-                        }
-                    }
-                }
-            }
-            if ($unreadcount) { push(@{$newdiscussions}, $ressymb); }
-	}
+
+# Check if there are unread discussion postings
+        if ($$show{'coursediscussion'}) {
+            &check_discussions($resource,$symb,$ressymb,$title,
+			       $newdiscussions,$unread,$countunread);
+        }
 
 # Check for ungraded problems
         if ($resource->is_problem()) {
-            my $ctr = 0;
-            my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
-	    my $partlist=$resource->parts();
-	    my $handgradeable;
-	    foreach my $part (@$partlist) {
-		if ($resource->handgrade($part) eq 'yes') {
-		    $handgradeable=1; last;
-		}
-	    }
-	    if ($handgradeable) {
-		foreach my $student (keys(%$classlist)) {
-		    my ($uname,$udom) = split(/:/,$student);
-		    my %status=&Apache::grades::student_gradeStatus($url,$symb,$udom,$uname,$partlist);
-		    my $submitted = 0;
-		    my $ungraded = 0;
-		    foreach (keys(%status)) {
-			$submitted = 1 if ($status{$_} ne 'nothing');
-			$ungraded = 1 if ($status{$_} =~ /^ungraded/);
-			my ($foo,$partid,$foo1) = split(/\./,$_);
-			if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
-			    $submitted = 0;
-			}
-		    }
-		    next if (!$submitted || !$ungraded);
-		    $ctr ++;
-		}
-		if ($ctr) {
-		    $$ungraded{$symb}{count} = $ctr;
-		    $$ungraded{$symb}{title} = $title;
-		    push(@{$tograde}, $symb);
-		}
-	    }
+            if ($$show{'handgrading'}) {
+                &check_handgraded($resource,$symb,$title,$cdom,$crs,$ungraded,
+                                                                     $tograde);
+            }
         }
 
 # Check for bombs
-        if ($resource->getErrors()) {
-            my $errors = $resource->getErrors();
-	    $errors =~ s/^,//;
-            my @bombs = split(/,/, $errors);
-            my $errorcount = scalar(@bombs);
-            my $errorlink = '<a href="/adm/email?display='.
-                            &Apache::lonnet::escape($bombs[0]).'">'.
-                            $title.'</a>';
-            $$bombed{$symb}{errorcount} = $errorcount;
-            $$bombed{$symb}{errorlink} = $errorlink;
-            push(@{$bombs}, $symb);
-        }
-# Compile maxtries and degree of difficulty for problem parts
-        my @parts = @{$resource->parts()};
-        my %stats;
-        my %lastreset = ();
-        my $warning = 0;
-        my $rowColor;
-        foreach my $part (@parts) {
-            %{$stats{$part}} = ();
-            my ($attempts,$users,$corrects,$degdiff,$av_attempts);
-            if (exists($resourcetracker{$symb."\0".$part."\0attempts"})) {
-                $attempts = $resourcetracker{$symb."\0".$part."\0attempts"};
-            }
-            if (exists($resourcetracker{$symb."\0".$part."\0users"})) {
-                $users = $resourcetracker{$symb."\0".$part."\0users"};
-            }
-            if (exists($resourcetracker{$symb."\0".$part."\0correct"})) {
-                $corrects = $resourcetracker{$symb."\0".$part."\0correct"};
-            }
-            if ($attempts > 0) {
-                $degdiff =  1 - ($corrects/$attempts);
-                $degdiff = sprintf("%.2f",$degdiff);
-            }
-            if ($users > 0) {
-                $av_attempts = $attempts/$users;
-                $av_attempts = sprintf("%.2f",$av_attempts);
-            }
-            if ((($degdiff ne '' && $degdiff >= $$threshold{'degdiff'}) || ($av_attempts ne '' && $av_attempts >= $$threshold{'av_attempts'})) && ($users >= $$threshold{'numstudents'})) {
-                $stats{$part}{degdiff} = $degdiff;
-                $stats{$part}{attempts} = $av_attempts;
-                $stats{$part}{users} = $users;
-		$lastreset{$part} = $resourcetracker{$symb."\0".$part."\0resettime"};
-                $warning = 1;
-            }
-        }
-        if ($warning) {
-            if ($warningnum %2 == 1) {
-                $rowColor = $rowColor1;
-            } else {
-                $rowColor = $rowColor2;
+        if ($$show{'haserrors'}) {
+            &check_bombed($resource,$symb,$title,$bombs,$bombed);
+        }
+
+# Maxtries and degree of difficulty for problem parts, unless handgradeable
+        if ($$show{'abovethreshold'}) {  
+            &check_thresholds($resource,$symb,\%resourcetracker,
+			      $triggered,$threshold,$warnings);
+        }
+
+    }
+    return; 
+}
+
+sub check_discussions {
+    my ($resource,$symb,$ressymb,$title,$newdiscussions,$unread,
+	$countunread) = @_;
+
+    if (!$resource->hasDiscussion()) { return; }
+
+    %{$$unread{$ressymb}} = ();
+    $$unread{$ressymb}{'title'} = $title;
+    $$unread{$ressymb}{'symb'} = $symb;
+    if ($resource->encrypted()) {
+        $$unread{$ressymb}{'enclink'} = $resource->link();
+        $$unread{$ressymb}{'encsymb'} = $resource->shown_symb();
+    }
+    push(@{$newdiscussions}, $ressymb);
+    
+    $$unread{$ressymb}{'lastpost'} = $resource->last_post_time();
+    
+    if ($countunread eq 'on') {
+	$$unread{$ressymb}{'unreadcount'} = 
+                            $resource->discussion_info('unread');
+    }
+}
+
+sub check_handgraded {
+    my ($resource,$symb,$title,$cdom,$cnum,$ungraded,$tograde) = @_;
+    if ($resource->is_problem()) {
+        my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
+        my $partlist=$resource->parts();
+        my $handgradeable;
+        foreach my $part (@$partlist) {
+            if ($resource->handgrade($part) eq 'yes') {
+                $handgradeable=1; last;
             }
-            $$triggered{$symb}{title} = $resource->title;
-            foreach my $part (@parts) {
-                if (exists($stats{$part}{users})) {
-                    my $resetname = 'reset_'.&Apache::lonnet::escape($symb."\0".$part);
-                    my $resettitle = 'title_'.&Apache::lonnet::escape($symb."\0".$part);
-                    if ($$triggered{$symb}{numparts}) {
-                        $$triggered{$symb}{text} .= '<tr bgcolor="'.$rowColor.'">'."\n";
-                    }
-                    if (@parts > 1) {
-                        $$triggered{$symb}{text} .= '
-                         <td align="right"><small>part - '.$part.'<small></td>';
-                    } else {
-                        $$triggered{$symb}{text} .= '
-                         <td align="right"><small>single part</small></td>';
-                    }
-                    $$triggered{$symb}{text} .= '
-                         <td align="right"><small>'.$stats{$part}{users}.'</small></td>
-                         <td align="right"><small>'.$stats{$part}{attempts}.'</small></td>
-                         <td align="right"><small>'.$stats{$part}{degdiff}.'</small></td>
-                         <td align="right"><small>'.$lastreset{$part}.'</small></td>
-                         <td align="right"><small><input type="checkbox" name="'.$resetname.'" /><input type="hidden" name="'.$resettitle.'" value="'.&Apache::lonnet::escape($$triggered{$symb}{title}).'" /></td> 
-                        </tr>';
-                    $$triggered{$symb}{numparts} ++;
+        }
+        if ($handgradeable) {
+            my @ungraded = &Apache::bridgetask::get_queue_symb_status(
+                                             'gradingqueue',$symb,$cdom,$cnum);
+            if (@ungraded > 0) {
+                $$ungraded{$symb}{count} = scalar(@ungraded);
+                $$ungraded{$symb}{title} = $title;
+                if ($resource->encrypted()) {
+                    $$ungraded{$symb}{'enclink'} = $resource->link();
+                    $$ungraded{$symb}{'encsymb'} = $resource->shown_symb();
+                }
+                push(@{$tograde},$symb);
+            }
+        }
+    }
+}
+
+sub check_bombed {
+    my ($resource,$symb,$title,$bombs,$bombed) = @_;
+    if ($resource->getErrors()) {
+        my $errors = $resource->getErrors();
+        $errors =~ s/^,//;
+        my @bombs = split(/,/, $errors);
+        my $errorcount = scalar(@bombs);
+        my $errorlink = '<a href="/adm/email?display='.
+                        &escape($bombs[0]).'">'.
+                        $title.'</a>';
+        $$bombed{$symb}{errorcount} = $errorcount;
+        $$bombed{$symb}{errorlink} = $errorlink;
+        push(@{$bombs}, $symb);
+    }
+}
+
+sub check_thresholds {
+    my ($resource,$symb,$resourcetracker,$triggered,$threshold,$warnings) = @_;
+# Compile maxtries and degree of difficulty for problem parts, unless handgradeable
+    my @parts = @{$resource->parts()};
+    my %stats;
+    my %lastreset = ();
+    my $warning = 0;
+    foreach my $part (@parts) {
+        if ($resource->handgrade($part) eq 'yes') {
+            next;
+        }
+        if ($resource->is_anonsurvey($part)) {
+            next;
+        }
+        if ($resource->is_survey($part)) {
+            next;
+        }
+        %{$stats{$part}} = ();
+        my ($attempts,$users,$corrects,$degdiff,$av_attempts);
+        if (exists($$resourcetracker{$symb."\0".$part."\0attempts"})) {
+            $attempts = $$resourcetracker{$symb."\0".$part."\0attempts"};
+        }
+        if (exists($$resourcetracker{$symb."\0".$part."\0users"})) {
+            $users = $$resourcetracker{$symb."\0".$part."\0users"};
+        }
+        if (exists($$resourcetracker{$symb."\0".$part."\0correct"})) {
+            $corrects = $$resourcetracker{$symb."\0".$part."\0correct"};
+        }
+        if ($attempts > 0) {
+            $degdiff =  1 - ($corrects/$attempts);
+            $degdiff = sprintf("%.2f",$degdiff);
+        }
+        if ($users > 0) {
+            $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 >= $$threshold{'numstudents'})) {
+            $stats{$part}{degdiff} = $degdiff;
+            $stats{$part}{attempts} = $av_attempts;
+            $stats{$part}{users} = $users;
+            $lastreset{$part} = $$resourcetracker{$symb."\0".$part."\0resettime"};
+            if ($lastreset{$part}) {
+                $lastreset{$part} = &Apache::lonnavmaps::timeToHumanString($lastreset{$part});
+            }
+            $warning = 1;
+        }
+    }
+    if ($warning) {
+        $$triggered{$symb}{title} = $resource->title;
+        my $partcount = 0;
+        @{$$triggered{$symb}{text}} = ();
+        foreach my $part (@parts) {
+            if (exists($stats{$part}{users})) {
+                my $resetname = 'reset_'.&escape($symb."\0".$part);
+                my $resettitle = 'title_'.&escape($symb."\0".$part);
+                if (@parts > 1) {
+                    $$triggered{$symb}{text}[$partcount] = '
+                     <td>'.&mt('part - ').$part.'</td>';
+                } else {
+                    $$triggered{$symb}{text}[$partcount] = '
+                     <td>'.&mt('single part').'</td>';
                 }
+                $$triggered{$symb}{text}[$partcount] .= '
+                     <td>'.$stats{$part}{users}.'</td>
+                     <td>'.$stats{$part}{attempts}.'</td>
+                     <td>'.$stats{$part}{degdiff}.'</td>
+                     <td>'.$lastreset{$part}.'</td>
+                     <td><input type="checkbox" name="'.$resetname.'" /><input type="hidden" name="'.$resettitle.'" value="'.&escape($$triggered{$symb}{title}).'" /></td>';
+                $partcount ++;
             }
-            push(@{$warnings},$symb);
-            $warningnum ++;
+            $$triggered{$symb}{numparts} = $partcount;
         }
+        push(@{$warnings},$symb);
     }
 }
 
+
 sub get_curr_thresholds {
-    my ($threshold,$cdom,$crs) = @_;
-    my %coursesettings = &Apache::lonnet::dump('environment',
-                                     $cdom,$crs,'internal.threshold');
-    if (exists($coursesettings{'internal.threshold_av_attempts'})) {
-        $$threshold{'av_attempts'} = $coursesettings{'internal.threshold_av_attempts'};
+    my ($threshold,$uname,$udom,$cid,$cdom,$crs) = @_;
+    # set default values
+    %$threshold = (av_attempts => 2,
+                  degdiff => 0.5,
+                  numstudents => 2
+                  );
+    my %thresholdsettings = &Apache::lonnet::dump('nohist_whatsnew',$udom,
+                                                     $uname,$cid.':threshold');
+    my $thresholdcount = 0;
+    my ($tmp) = %thresholdsettings;
+    unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
+        foreach my $item (keys %{$threshold}) { 
+            if (exists($thresholdsettings{$cid.':threshold_'.$item})) {
+                $$threshold{$item} = 
+                             $thresholdsettings{$cid.':threshold_'.$item};
+                $thresholdcount ++;
+            }
+        }
     }
-    if (exists($coursesettings{'internal.threshold_degdiff'})) {
-        $$threshold{'degdiff'} = $coursesettings{'internal.threshold_degdiff'};
+    if ($thresholdcount == 3) {
+        return;
     }
-    if (exists($coursesettings{'internal.threshold_numstudents'})) {
-        $$threshold{'numstudents'} = $coursesettings{'internal.threshold_numstudents'};
+    my %coursesettings = &Apache::lonnet::dump('environment',
+                                              $cdom,$crs,'internal.threshold');
+    my ($temp) = %coursesettings;
+    unless ($temp =~ /^(con_lost|error|no_such_host)/i) {  
+        foreach my $item (keys %{$threshold}) {
+            unless (exists($thresholdsettings{$cid.':threshold_'.$item})) {
+                if (exists($coursesettings{'internal.threshold_'.$item})) {
+                    $$threshold{$item} = 
+                             $coursesettings{'internal.threshold_'.$item};
+                }
+            }
+        }
     }
+    return;
+}
+
+sub get_current {
+    my ($uname,$udom,$cid,$caller) = @_;
+    my $currvalue;
+    my %settings = &Apache::lonnet::dump('nohist_whatsnew',$udom,$uname,$cid.
+                                                                ':'.$caller);
+    my ($tmp) = %settings;
+    unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
+        $currvalue = $settings{$cid.':'.$caller};
+    }
+    return $currvalue;
 }
 
 sub process_reset {
     my ($dom,$crs) = @_;
-    my $result = '<b>Counters reset for following problems (and parts):</b><br />';
+    my $result = '<b>'.&mt('Counters reset for following problems (and parts):').
+                           '</b><br />';
     my @agg_types = ('attempts','users','correct');
-    my %agg_titles = (
+    my %agg_titles = &Apache::lonlocal::texthash (
                      attempts => 'Number of submissions',
                      users => 'Students with submissions',
                      correct => 'Number of correct submissions',
@@ -709,8 +1203,8 @@ sub process_reset {
     my %titles = ();
     foreach my $key (keys(%env)) {
         next if ($key !~ /^form\.reset_(.+)$/);
-        my $title = &Apache::lonnet::unescape($env{'form.title_'.$1});
-        my $reset_item = &Apache::lonnet::unescape($1);
+        my $title = &unescape($env{'form.title_'.$1});
+        my $reset_item = &unescape($1);
         my %curr_aggregates = &Apache::lonnet::dump('nohist_resourcetracker',$dom,$crs,$reset_item);
         my %aggregates = ();
         my ($symb,$part) = split(/\0/,$reset_item);
@@ -736,51 +1230,49 @@ sub process_reset {
 }
 
 sub process_update {
-    my ($dom,$crs,$threshold_titles) = @_;
-    my $setoutput = '<b>Changes to threshold(s) for problem tracking:</b><br />';
+    my ($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;
         my $value = $env{'form.'.$name.'_value'};
-        if ($name && defined($value)) {
-            my $put_result = &Apache::lonnet::put('environment',
-                                                  {$name=>$value},$dom,$crs);
+        if ($name && defined($value) && ($value ne '')) {
+            my $put_result = &Apache::lonnet::put('nohist_whatsnew',
+                                                  {$name=>$value},$udom,$uname);
            
-            my ($shortname) = ($name =~ /^internal\.threshold_(.+)$/); 
+            my ($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 getmail {
-    my ($newmsgs,$critmsgs) = @_;
+sub getnormalmail {
+    my ($newmsgs) = @_;
 # Check for unread mail in course
     my $msgcount = 0;
 
     my @messages = sort(&Apache::lonnet::getkeys('nohist_email'));
     foreach my $message (@messages) {
-	my $msgid=&Apache::lonnet::escape($message);
+	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;
-                $sendtime = &Apache::lonlocal::locallocaltime($sendtime);
                 if ($status eq 'new') {
-                    $msgcount ++;
+                $sendtime = &Apache::lonlocal::locallocaltime($sendtime);
+		    $msgcount ++;
                     if ($shortsubj eq '') {
                         $shortsubj = &mt('No subject');
                     }
-                    $shortsubj = &Apache::lonnet::unescape($shortsubj);
                     push(@{$newmsgs}, {
                         msgid    => $msgid,
                         sendtime => $sendtime,
@@ -792,7 +1284,11 @@ sub getmail {
             }
         }
     }
+    return $msgcount;
+}
 
+sub getcritmail {
+    my ($critmsgs) = @_; 
 # Check for critical messages in course
     my %what=&Apache::lonnet::dump('critical');
     my $result = '';
@@ -802,13 +1298,11 @@ sub getmail {
             &Apache::lonmsg::unpackmsgid($msgid);
         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');
                 }
-                $shortsubj = &Apache::lonnet::unescape($shortsubj);
                 push(@{$critmsgs}, {
                         msgid    => $msgid,
                         sendtime => $sendtime,
@@ -819,7 +1313,689 @@ sub getmail {
             }
         }
     }
-    return ($msgcount,$critmsgcount);
+    return $critmsgcount;
+}
+
+sub getexpired {
+    my ($rolechgs,$rolechgtime,$status) = @_;
+    my $expirecount = &getrolechanges($rolechgs,$rolechgtime,$status);
+    return $expirecount;
+}
+
+sub getactivated {
+    my ($rolechgs,$rolechgtime,$status) = @_;
+    my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+    my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+    my $now = time();
+    my $context = 'course';
+    my ($permission,$allowed) =
+        &Apache::lonuserutils::get_permission($context);
+    my $viewablesec = &Apache::lonuserutils::viewable_section($permission);
+    my %changes=&Apache::lonnet::dump('nohist_rolelog',$cdom,$cnum);
+    my (%stucounted,%advcounted);
+    my $activatedcount = 0;
+    if (keys(%changes) > 0) {
+        foreach my $chg (sort { $b <=> $a } (keys(%changes))) {
+            if (ref($changes{$chg}) eq 'HASH') {
+                my $timestamp = $changes{$chg}{'exe_time'};
+                if ($timestamp) {
+                    if ($rolechgtime > 0) {
+                        if ($timestamp < $rolechgtime) {
+                            last;
+                        }
+                    }
+                    if (ref($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 <= $now);
+                        if (($viewablesec ne '') && ($section ne '')) {
+                            next if ($viewablesec ne $section);
+                        }
+                        next if ($start >= $timestamp);
+                        if ($role eq 'st') {
+                            $stucounted{$uname.':'.$udom.':'.$section} = $start.':'.$end;
+                        } else {
+                            $advcounted{$uname.':'.$udom.':'.$role.':'.$section} = $start.':'.$end;
+                        }
+                        my %chginfo = (
+                                       'section' => $section,
+                                       'uname'   => $uname,
+                                       'udom'    => $udom,
+                                       'role'    => $role,
+                                       'status'  => $status,
+                        );
+                        $activatedcount ++;
+                        push (@{$rolechgs->{$timestamp}},\%chginfo);
+                    }
+                }
+            }
+        }
+    }
+    $activatedcount += &getrolechanges($rolechgs,$rolechgtime,$status,\%stucounted,\%advcounted);
+    return $activatedcount;
+}
+
+sub getrolechanges {
+    my ($rolechgs,$rolechgtime,$status,$stucountref,$advcountref) = @_;
+    my (%stucounted,%advcounted);
+    if (ref($stucountref) eq 'HASH') {
+        %stucounted = %{$stucountref};
+    }
+    if (ref($advcountref) eq 'HASH') {
+        %advcounted = %{$advcountref};
+    }
+    my $withsec = 1;
+    my $hidepriv = 1;
+    my $context = 'course';
+    my @statuses = ($status);
+    my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+    my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+    my $now = time();
+    my ($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.':'.$sec})) {
+                    next;
+                }
+            }
+            if (($end == 0) || ($end > $start)) {
+                if ($start <= $now) {
+                    if ($end && $end < $now) {
+                        if ($rolechgtime > 0) {
+                            if ($end > $rolechgtime) {
+                                $userstatus = 'previous';
+                            }
+                        } else {
+                            $userstatus = 'previous';
+                        }
+                    } else {
+                        if ($rolechgtime > 0) {
+                            if ($start >= $rolechgtime) {
+                                $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->{$eventtime}},\%chginfo);
+        }
+    }
+    my %advrolehash = &Apache::lonnet::get_my_roles($cnum,$cdom,undef,
+                              \@statuses,undef,undef,$withsec,$hidepriv);
+    foreach my $item (keys(%advrolehash)) {
+        my ($userstatus,$eventtime);
+        my ($uname,$udom,$role,$section) = split(/:/,$item,-1);
+        my ($start,$end) = split(/:/,$advrolehash{$item});
+        if ($start eq '-1' && $end eq '-1') {
+            next;
+        } else {
+            if ($status eq 'active') {
+                if (exists($advcounted{$item})) {
+                    next;
+                }
+            }
+            if (($end == 0) || ($end > $start)) {
+                if ($start <= $now) {
+                    if ($end && $end < $now) {
+                        if ($rolechgtime > 0) {
+                            if ($end > $rolechgtime) {
+                                $userstatus = 'previous';
+                            }
+                        } else {
+                            $userstatus = 'previous';
+                        }
+                    } else {
+                        if ($rolechgtime > 0) {
+                            if ($start >= $rolechgtime) {
+                                $userstatus = 'active';
+                            }
+                        } else {
+                            $userstatus = 'active';
+                        }
+                    }
+                }
+            }
+            next if ($userstatus ne $status);
+            if ($status eq 'active') {
+                $eventtime = $start;
+            } else {
+                $eventtime = $end;
+            }
+        }
+        if (($viewablesec ne '') && ($section ne '')) {
+            next if ($viewablesec ne $section);
+        }
+        my %chginfo = ( 
+                        'section' => $section,
+                        'uname'   => $uname,
+                        'udom'    => $udom,
+                        'role'    => $role,
+                        'status'  => $userstatus,    
+                      );
+        $rolechgcount ++; 
+        push (@{$rolechgs->{$eventtime}},\%chginfo); 
+    }
+    return $rolechgcount;
+}
+
+sub getloggedin {
+    my ($cdom,$crs,$lastlogins,$starttime) = @_;
+    my $context = 'course';
+    my ($permission,$allowed) =
+        &Apache::lonuserutils::get_permission($context);
+    my $viewablesec = &Apache::lonuserutils::viewable_section($permission);
+    my %crslogins=&Apache::lonnet::dump('nohist_crslastlogin',$cdom,$crs);
+    my $logincount = 0;
+    my ($tmp) = keys(%crslogins);
+    unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
+        if (keys(%crslogins) > 0) {
+            foreach my $key (keys(%crslogins)) {
+                my ($uname,$udom,$section,$role) = split(/:/,$key);
+                my $eventtime = $crslogins{$key};
+                if ($eventtime > $starttime) {
+                    if (($viewablesec ne '') && ($section ne '')) {
+                        next if ($viewablesec ne $section);
+                    }
+                    my %chginfo = (
+                                   'section' => $section,
+                                   'uname'   => $uname,
+                                   'udom'    => $udom,
+                                   'role'    => $role,
+                    );
+                    $logincount ++;
+                    push (@{$lastlogins->{$eventtime}},\%chginfo);
+                }
+            }
+        }
+    }
+    return $logincount;
+}
+
+sub checkversions {
+    my ($cdom,$crs,$navmap,$changed,$starttime) = @_;
+    my %changes=&Apache::lonnet::dump('versionupdate',$cdom,$crs);
+    my ($tmp) = keys(%changes);
+    unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
+        if (keys(%changes) > 0) {
+            foreach my $key (sort(keys(%changes))) {
+                if ($changes{$key} > $starttime) {
+                    my $version;
+                    my ($root,$extension)=($key=~/^(.*)\.(\w+)$/);
+                    my $currentversion=&Apache::lonnet::getversion($key);
+                    my $revdate = 
+                          &Apache::lonnet::metadata($root.'.'.$extension,
+                                                     'lastrevisiondate');
+                    $revdate =  &Apache::lonlocal::locallocaltime($revdate);
+                    my $linkurl=&Apache::lonnet::clutter($key);
+                    my $usedversion=$navmap->usedVersion($linkurl);
+                    my @resources = $navmap->getResourceByUrl($linkurl,1);
+                    if (($usedversion) && ($usedversion ne 'mostrecent')) {
+                        $version = $usedversion;     
+                    } else {
+                        $version = $currentversion;
+                    }
+                    foreach my $res (@resources) {
+                         if (ref($res) eq 'Apache::lonnavmaps::resource') { 
+                            my $symb = $res->symb();
+                            %{$$changed{$symb}} = (
+                                                current => $currentversion,
+                                                version => $version,
+                                                revdate => $revdate,
+                            );
+                        }
+                    }
+                }
+            }
+        }
+    }
+    return;
+}
+
+sub display_handgrade {
+    my ($r,$tograde,$ungraded,$itemserror) = @_;
+    my %lt = &Apache::lonlocal::texthash(
+                        'prna' => 'Problem Name',
+                        'nmun' => 'Number ungraded',
+                        'nopr' => 'No problems require handgrading',
+    );
+    if (@{$tograde} > 0) {
+        $r->print('<tr class="LC_info_row"><td class="LC_left_item">'.
+                  $lt{'prna'}.'</td><td class="LC_right_item">'.
+                  $lt{'nmun'}.'</td></tr>');
+        my $rowNum = 0;
+        foreach my $res (@{$tograde}) {
+            $rowNum ++;
+            my $css_class = $rowNum%2?' class="LC_odd_row"':'';
+            my $linkurl='/adm/grades';
+            if ($$ungraded{$res}{'enclink'}) {
+                $linkurl.='?symb='.$$ungraded{$res}{'encsymb'};
+            } else {
+                $linkurl.='?symb='.&escape($res);
+            }
+            $linkurl.='&command=ungraded';
+            $r->print('<tr'.$css_class.'><td><a href="'.$linkurl.'">'.$$ungraded{$res}{title}.'</a></td><td class="LC_right_item">'.$$ungraded{$res}{count}.'</td></tr>');
+        }
+    } elsif ($itemserror) {
+        $r->print('<tr class="LC_empty_row"><td>'.$itemserror.'</td></tr>');
+    } else {
+        $r->print('<tr class="LC_empty_row"><td>'.$lt{'nopr'}.'</td></tr>');
+    }
+}
+
+sub display_haserrors {
+    my ($r,$bombs,$bombed,$res_title,$itemserror) = @_;
+    my $bombnum = 0;
+    my %lt = &Apache::lonlocal::texthash(
+                                   reso => 'Resource',
+                                   nmer => 'Number of errors',
+                                   noer => 'No problems with errors',
+    );
+    if (@{$bombs} > 0) {
+        $r->print('<tr class="LC_info_row"><td class="LC_left_item">'.
+                  $lt{'reso'}.'</td><td class="LC_right_item">'.
+                  $lt{'nmer'}.'</td></tr>');
+        @{$bombs} = sort { &cmp_title($a,$b,$res_title) } @{$bombs};
+        foreach my $bomb (@{$bombs}) {
+            $bombnum ++;
+            my $css_class = $bombnum%2?' class="LC_odd_row"':'';
+            $r->print('<tr'.$css_class.'><td>'.$$bombed{$bomb}{errorlink}.
+                      '</td><td class="LC_right_item">'.
+                      $$bombed{$bomb}{errorcount}.'</td></tr>');
+        }
+    } elsif ($itemserror) {
+        $r->print('<tr class="LC_empty_row"><td>'.$itemserror.'</td></tr>');
+    } else {
+        $r->print('<tr class="LC_empty_row"><td>'.$lt{'noer'}.'</td></tr>');
+    }
+    return;
+}
+
+sub display_abovethreshold {
+    my ($r,$refpage,$warnings,$triggered,$res_title,$itemserror) = @_;
+    my %lt = &Apache::lonlocal::texthash(
+                 reso => 'Resource',
+                 part => 'Part',
+                 nust => 'Num. students',
+                 avat => 'Av. Attempts',
+                 dedi => 'Deg. Diff',
+                 lare => 'Last Reset',
+                 reco => 'Reset Count?',
+                 rese => 'Reset counters to 0',
+                 nopr => 'No problems satisfy threshold criteria',
+    );
+    if (@{$warnings} > 0) {
+        @{$warnings} = sort { &cmp_title($a,$b,$res_title) } @{$warnings};
+        $r->print('<form name="reset_tracking" method="post" action="/adm/whatsnew">'.
+                ' <input type="hidden" name="command" value="reset" />'."\n".
+                ' <input type="hidden" name="refpage" value="'.$refpage.'" />'.
+                "\n");
+        $r->print('<tr class="LC_info_row">'.
+		  '<td class="LC_left_item">'.$lt{'reso'}.'</td>'.
+		  '<td>'.$lt{'part'}.'</td><td>'.$lt{'nust'}.'</td>'.
+		  '<td>'.$lt{'avat'}.'</td><td>'.$lt{'dedi'}.'</td>'.
+		  '<td>'.$lt{'lare'}.'</td><td  class="LC_right_item">'.
+                  $lt{'reco'}.'</td></tr>');
+	my $row;
+        foreach my $res (@{$warnings}) {
+	    $row++;
+            my ($map,$id,$url)=&Apache::lonnet::decode_symb($res);
+            my $linkurl=&Apache::lonnet::clutter($url);
+            my $rowspan;
+            if ($$triggered{$res}{numparts} > 1) {
+                $rowspan = 'rowspan="'.$$triggered{$res}{numparts}.'"';
+            }
+            $linkurl .= '?symb='.&escape($res);
+            if ($$triggered{$res}{'enclink'}) {
+                $linkurl = 
+                  $$triggered{$res}{'enclink'}.'?symb='.$$triggered{$res}{'encsymb'};
+            }
+            my $css_class = $row%2?' class="LC_odd_row"':'';
+            $r->print('<tr'.$css_class.'>'.
+		      '<td class="LC_first_item" '.$rowspan.'><a href="'.$linkurl.'">'.
+		      $$triggered{$res}{title}.'</a></td>');
+                      if (ref($$triggered{$res}{text}) eq 'ARRAY') {
+		          $r->print($$triggered{$res}{text}[0]);
+                      }
+                      $r->print('</tr>');
+            if (ref($$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.'">'.
+                                  $$triggered{$res}{text}[$i].'</tr>');
+                    }
+                }
+            }
+        }
+        $r->print('<tr class="LC_info_row"><td colspan="7" class="LC_right_item"><br /><input type="submit" name="counters" value="'.$lt{'rese'}.'" /></td></tr></form>');
+    } elsif ($itemserror) {
+        $r->print('<tr class="LC_empty_row"><td>'.$itemserror.'</td></tr>');
+    } else {
+        $r->print('<tr class="LC_empty_row"><td>'.$lt{'nopr'}.'</td></tr>');
+    }
+}
+
+sub display_versionchanges {
+    my ($r,$changed,$res_title,$interval,$itemserror) = @_;
+    my %lt = &Apache::lonlocal::texthash(
+        'reso' => 'Resource',
+        'revd' => 'Last revised',
+        'newv' => 'New version',
+        'veru' => 'Version used',
+    );
+    if (keys(%{$changed}) > 0) {
+        $r->print('<tr class="LC_info_row"><td class="LC_left_item">'.
+                  $lt{'reso'}.'</td><td>'.$lt{'revd'}.'</td><td>'.
+                  $lt{'newv'}.'</td><td class="LC_right_item">'.
+                  $lt{'veru'}.'</td></tr>');
+        my @changes = sort { &cmp_title($a,$b,$res_title) } keys(%{$changed});
+        my $changenum = 0;
+        foreach my $item (@changes) {
+            $changenum ++;
+            my $css_class = $changenum%2?' class="LC_odd_row"':'';
+            my ($map,$id,$url)=&Apache::lonnet::decode_symb($item);
+            my $linkurl=&Apache::lonnet::clutter($url);
+            $linkurl .= '?symb='.&escape($item);
+
+            $r->print('<tr'.$css_class.'><td><a href="'.$linkurl.'">'.
+                      $$res_title{$item}.'</a></td><td>'.
+                      $$changed{$item}{'revdate'}.'</td><td>'.
+                      $$changed{$item}{'current'}.'</td><td>'.
+                      $$changed{$item}{'version'}.'</td></tr>');
+        }
+    } elsif ($itemserror) {
+        $r->print('<tr class="LC_empty_row"><td>'.$itemserror.'</td></tr>');
+    } else {
+        $r->print('<tr class="LC_empty_row"><td>'
+                 .&mt('No '.$interval).'</td></tr>');
+    }
+    return;
+}
+
+sub display_rolechanges {
+    my ($r,$chgcount,$changed,$interval,$crstype) = @_;
+    my $now = time();
+    my %lt = &Apache::lonlocal::texthash(
+        'user'  => 'User',
+        'tich'  => 'Time of change',
+        'role'  => 'Role',
+        'sec'   => 'Section',
+        'status'  => 'Status',
+    );
+    if ($chgcount) {
+        $r->print('<tr class="LC_info_row">'.
+                  '<td class="LC_left_item">'.$lt{'tich'}.'</td>'.
+                  '<td class="LC_left_item">'.$lt{'user'}.'</td>'.
+                  '<td class="LC_left_item">'.$lt{'role'}.'</td>'.
+                  '<td class="LC_left_item">'.$lt{'sec'}.'</td>'.
+                  '<td class="LC_left_item">'.$lt{'status'}.'</td></tr>');
+        if (ref($changed) eq 'HASH') {
+            my @changes = sort { $b <=> $a } (keys(%{$changed}));
+            my $changenum = 0;
+            foreach my $item (@changes) {
+                if (ref($changed->{$item}) eq 'ARRAY') {
+                    foreach my $chg (@{$changed->{$item}}) {
+                        if (ref($chg) eq 'HASH') {
+                            my $section;
+                            my $role = 
+                                &Apache::lonnet::plaintext($chg->{'role'},$crstype);
+                            my $status = &mt($chg->{'status'});
+                            if ($chg->{'section'} eq '') {
+                                $section = &mt('none');
+                            } else {
+                                $section = $chg->{'section'};
+                            }
+                            my $uname = $chg->{'uname'};
+                            my $udom = $chg->{'udom'};
+                            $changenum ++;
+                            my $css_class = $changenum%2?' class="LC_odd_row"':'';
+                            my $link = 
+                                &Apache::loncommon::aboutmewrapper(&Apache::loncommon::plainname($uname,$udom),$uname,$udom);
+                            $r->print('<tr'.$css_class.'>'.
+                                      '<td>'.&Apache::lonlocal::locallocaltime($item).'</td>'.
+                                      '<td>'.$link.'</td>'.
+                                      '<td>'.$role.'</td>'.
+                                      '<td>'.$section.'</td>'.
+                                      '<td>'.$status.'</td></tr>');
+                        }
+                    }
+                }
+            }
+        }
+    } else {
+        $r->print('<tr class="LC_empty_row"><td>'
+                 .&mt('There are no '.$interval).'</td></tr>');
+    }
+    return;
+}
+
+sub display_crslogins {
+    my ($r,$logincount,$loggedin,$interval,$crstype) = @_;
+    my %lt = &Apache::lonlocal::texthash(
+        'user'   => 'User',
+        'role'   => 'Role',
+        'sec'    => 'Section',
+        'number' => 'Total number of logins',
+    );
+    if ($logincount) {
+
+        my $hdr = '<tr class="LC_info_row" style="display:none" id="logintitledet">'.
+                  '<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'};
+        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($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 {
+                                $section = $user->{'section'};
+                            }
+                            $counts{$user->{'role'}}{$section} ++;
+                            my $uname = $user->{'uname'};
+                            my $udom = $user->{'udom'};
+                            my $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 $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"':'';
+                        $table .= '<tr'.$css_class.' style="display:none;"  id="logindet_'.$numlogin.'">'.$item.'</tr>';
+                    }
+                }
+            }
+            my $numrow = 0;
+            foreach my $role (sort(keys(%counts))) {
+                my $showrole = &Apache::lonnet::plaintext($role,$crstype);
+                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"':'';
+                        $table .= '<tr '.$css_class.' id="loginsum_'.$numrow.'">'.
+                                  '<td>'.$counts{$role}{$sec}.'</td>'.
+                                  '<td>'.$showrole.'</td>'.
+                                  '<td>'.$sec.'</td></tr>';
+                   }
+                }
+            }
+            $r->print($hdr.'<input type="hidden" name="logincount" value="'.$numlogin.
+                      '" /><input type="hidden" name="loginrow" 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.
+                  '." /></td></tr>');
+    }
+    return;
+}
+ 
+sub display_coursediscussion {
+    my ($r,$newdiscussions,$unread,$countunread,$res_title,$itemserror) = @_;
+    my $lctype = lc(&Apache::loncommon::course_type());
+    my %lt = &Apache::lonlocal::texthash(
+                'loca' => 'Location',
+                'type' => 'Type',
+                'numn' => 'Number of new posts',
+                'noun' => 'No unread posts in '.$lctype.' discussions',
+                'tmlp' => 'Time of last post', 
+    );
+    if (@{$newdiscussions} > 0) {
+        $r->print('<tr class="LC_info_row"><td class="LC_left_item">'.
+                  $lt{'loca'}.'</td><td>'.
+                  $lt{'type'}.'</td>');
+        if ($countunread eq 'on') {
+            $r->print('<td>'.$lt{'tmlp'}.'</td>'.
+                      '<td class="LC_right_item">'.$lt{'numn'}.'</td>');
+        } else {
+            $r->print('<td class="LC_right_item">'.$lt{'tmlp'}.'</td>');
+        }
+        $r->print("</tr>\n");
+        @{$newdiscussions} = sort { &cmp_title($a,$b,$res_title) }
+                                                            @{$newdiscussions};
+        my $rowNum = 0;
+        foreach my $ressymb (@{$newdiscussions}) {
+            $rowNum ++;
+            my $forum_title = $$unread{$ressymb}{'title'};
+            my $type = 'Resource';
+            my $feedurl=&Apache::lonfeedback::get_feedurl($ressymb);
+            my $disclink = $feedurl.'?symb='.$$unread{$ressymb}{symb};
+            if ($feedurl =~ /bulletinboard/) {
+                $type = 'Discussion Board';
+            }
+            if ($$unread{$ressymb}{'enclink'}) {
+                $disclink = $$unread{$ressymb}{'enclink'}.'?symb='.$$unread{$ressymb}{'encsymb'};
+            }
+            my $css_class = $rowNum%2?' class="LC_odd_row"':'';
+            my $lastpost = &Apache::lonnavmaps::timeToHumanString(
+                                               $$unread{$ressymb}{'lastpost'});
+            $r->print('<tr'.$css_class.'><td><a href="'.$disclink.'">'.$forum_title.'</a>&nbsp;</td><td>'.&mt($type).'&nbsp;</td>');
+            if ($countunread eq 'on') {
+                my $unreadnum = $$unread{$ressymb}{'unreadcount'};
+                $r->print('<td>'.$lastpost.'</td><td class="LC_right_item">'.
+                          $unreadnum.'&nbsp;</td>');
+            } else {
+                $r->print('<td class="LC_right_item">'.$lastpost.'</td>');
+            }
+            $r->print("</tr>\n");
+        }
+    } elsif ($itemserror) {
+        $r->print('<tr class="LC_empty_row"><td>'.$itemserror.'</td></tr>');
+    } else {
+        $r->print('<tr class="LC_empty_row"><td>'.$lt{'noun'}.'</td></tr>');
+    }
+}
+
+sub display_coursenormalmail {
+    my ($r,$msgcount,$newmsgs) = @_;
+    my $lctype = lc(&Apache::loncommon::course_type());
+    if ($msgcount > 0) {
+        $r->print('<tr class="LC_info_row"><td class="LC_left_item">'.
+                  &mt('Number').'</td><td>'.&mt('Subject').'</td><td>'.
+                  &mt('Sender').'</td><td class="LC_right_item">'.
+                  &mt('Date/Time').'</td></tr>');
+        my $mailcount = 0;
+        foreach my $msg (@{$newmsgs}) {
+            $mailcount ++;
+            my $css_class = $mailcount%2?' class="LC_odd_row"':'';
+            $r->print('<tr'.$css_class.'><td>'.$mailcount
+                      .'.&nbsp;</td><td><a href="/adm/email?display='
+                      .$msg->{'msgid'}.'">'
+                      .$msg->{'shortsub'}.'</a>&nbsp;&nbsp;</td><td>&nbsp;'
+                      .$msg->{'from'}.':'.$msg->{'fromdom'}.'&nbsp;</td><td>'
+                      .$msg->{'sendtime'}.'</td></tr>');
+        }
+    } else {
+        $r->print('<tr class="LC_empty_row"><td>'.
+                  &mt('No new '.$lctype.' messages').'</td></tr>');
+    }
+}
+
+sub display_coursecritmail {
+    my ($r,$critmsgcount,$critmsgs) = @_;
+    my $lctype = lc(&Apache::loncommon::course_type());
+    if ($critmsgcount > 0) {
+        $r->print('<tr class="LC_info_row"><td class="LC_left_item">'.
+                  &mt('Number').'</td><td>'.&mt('Subject').'</td><td>'.
+                  &mt('Sender').'</td><td class="LC_right_item">'.
+                  &mt('Date/Time').'</td></tr>');
+        my $mailcount = 0;
+        foreach my $msg (@{$critmsgs}) {
+            $mailcount ++;
+            my $css_class = $mailcount%2?' class="LC_odd_row"':'';
+            $r->print('<tr'.$css_class.'><td>'.$mailcount.
+                      '. &nbsp;</td><td><a href="/adm/email?folder=critical">'.
+                      $msg->{'shortsub'}.'</a>&nbsp; &nbsp;</td><td>&nbsp;'.
+                      $msg->{'from'}.':'.$msg->{'fromdom'}.'&nbsp;</td><td>'.
+                      $msg->{'sendtime'}.'</td></tr>');
+        }
+    } else {
+        $r->print('<tr class="LC_empty_row"><td>'.
+                  &mt('No unread critical messages in '.$lctype).
+                  '</td></tr>');
+    }
 }
 
 sub cmp_title {
@@ -830,4 +2006,233 @@ sub cmp_title {
     return $atitle cmp $btitle;
 }
 
+sub get_display_settings {
+    my ($uname,$udom,$cid) = @_;
+    my %settings = &Apache::lonnet::dump('nohist_whatsnew',$udom,$uname,$cid); 
+    my ($tmp) = keys(%settings);
+    if ($tmp=~ /^(con_lost|error|no_such_host)/i) {
+        %settings = ();
+        unless ($tmp =~ /^error: 2 /) {
+	    my $lctype = lc(&Apache::loncommon::course_type());
+            &Apache::lonnet::logthis('Error retrieving whatsnew settings: '.
+            $tmp.' for '.$uname.':'.$udom.' for '.$lctype.': '.$cid);
+        }
+    }
+    return %settings;
+}
+
+sub store_display_settings {
+    my ($uname,$udom,$cid,$checkallowed) = @_;
+    my %whatsnew_settings;
+    my $result;
+    foreach my $key (keys(%{$checkallowed})) {
+	if ($key =~ /_section$/) { next; }
+        if (exists($env{'form.display_'.$key})) {
+            unless ($env{'form.display_'.$key} eq '') {
+                $whatsnew_settings{$cid.':'.$key} = $env{'form.display_'.$key};
+            }
+        }
+    }
+    if (keys(%whatsnew_settings)) {
+        $result = &Apache::lonnet::put('nohist_whatsnew',\%whatsnew_settings,
+                                                                 $udom,$uname);
+    } else {
+        $result = 'ok';
+    }
+    return $result;
+}
+
+sub store_interval_setting {
+    my ($uname,$udom,$cid,$interval_titles) = @_;
+    my %interval_settings = ();
+    my $result;
+    my $context = $env{'form.intervaltype'};
+    if ($env{'form.interval'} ne '') {
+        if ($context eq 'oldroles') {
+            $interval_settings{$cid.':oldroleinterval'} = $env{'form.interval'};
+        } elsif ($context eq 'newroles') {
+            $interval_settings{$cid.':newroleinterval'} = $env{'form.interval'};
+        } elsif ($context eq 'crslogin') {
+            $interval_settings{$cid.':crslogininterval'} = $env{'form.interval'};
+        } else {
+            $interval_settings{$cid.':interval'} = $env{'form.interval'};
+        }
+        my $outcome = &Apache::lonnet::put('nohist_whatsnew',
+                                             \%interval_settings,$udom,$uname);
+        if ($outcome eq 'ok') {
+            if (ref($interval_titles->{$context}) eq 'HASH') {
+                $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);
+            $result = &Apache::lonhtmlcommon::confirm_success(&mt('Unable to set interval to [_1] due to [_2].',
+                         '<b>'.$interval_titles->{$context}->{$env{'form.interval'}}.'</b>',
+                         '<tt>'.$outcome.'</tt>'),1);
+        }
+    }
+    return &Apache::loncommon::confirmwrapper($result);
+}
+
+sub store_discussion_setting {
+    my ($uname,$udom,$cid) = @_;
+    my %discussion_settings;
+    my $result;
+    if (defined($env{'form.countunread'})) {
+        $discussion_settings{$cid.':countunread'} = $env{'form.countunread'};
+        my $outcome = &Apache::lonnet::put('nohist_whatsnew',
+                                             \%discussion_settings,$udom,$uname);
+        if ($outcome eq 'ok') {
+            $result = &Apache::lonhtmlcommon::confirm_success(&mt('Count unread posts in discussions display set to [_1]',
+                  '<b>'.&mt($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);
+            $result = &Apache::lonhtmlcommon::confirm_success(&mt('Unable to set "number unread posts display" to [_1]'.
+                          ' due to [_2].',
+                         '<b>'.&mt($env{'form.countunread'}).'</b>',
+                         '<tt>'.$outcome.'</tt>'),1);
+        }
+    }
+    return &Apache::loncommon::confirmwrapper($result);
+}
+
+sub store_courseinit_setting {
+    my ($uname,$udom,$cid,$initpage) = @_;
+    my %courseinit_settings;
+    my $page_control;
+    my $result;
+    if (defined($env{'form.courseinit_control'})) {
+        if ($env{'form.courseinit_control'} eq 'userpref') {
+            $courseinit_settings{$cid.':courseinit'} = '';
+            $page_control = 'global preferences';
+        } else {
+            if (defined($env{'form.courseinit_page'})) {
+                $courseinit_settings{$cid.':courseinit'} = 
+                                                  $env{'form.courseinit_page'};
+                $page_control = 'course specific setting';
+            }
+        }
+        if ($page_control) {
+	    my $lctype = lc(&Apache::loncommon::course_type());
+            my $outcome = &Apache::lonnet::put('nohist_whatsnew',
+                                           \%courseinit_settings,$udom,$uname);
+            if ($outcome eq 'ok') {
+                if ($page_control eq 'global preferences') {
+                    $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 {
+                    $result = &Apache::lonhtmlcommon::confirm_success(&mt('Page displayed after role selection in this '.$lctype.' set to [_1].'
+                                 ,'<b>'.$$initpage{$env{'form.courseinit_page'}}.'</b>'));
+                }
+            } else {
+                &Apache::lonnet::logthis('Error saving whatsnew courseinit '.
+                                         'setting: '.$outcome.' for '.$uname.
+                                         ':'.$udom.' in '.$lctype.' '.$cid);
+                if ($page_control eq 'global preferences') {
+                    $result = &Apache::lonhtmlcommon::confirm_success(&mt('Unable to set control of page display to [_1]'.
+                          ' due to [_2].',
+                         '<b>'.$page_control.'</b>',
+                         '<tt>'.$outcome.'</tt>'),1);
+                } else {
+                    $result = &Apache::lonhtmlcommon::confirm_success(&mt('Unable to set page display, after role selection, for this '.$lctype.' to [_1] due to [_2].'
+                                 ,'<b>'.$$initpage{$env{'form.courseinit_page'}}.'</b>'
+                                 ,'<tt>'.$outcome.'</tt>'),1);
+                }
+            }
+        }
+    }
+    return &Apache::loncommon::confirmwrapper($result);
+}
+
+sub start_box {
+    my ($r,$show,$heading,$caller,$refpage) = @_;
+    my %lt = &Apache::lonlocal::texthash( 
+                       chth => 'Change thresholds?',
+                       chin => 'Change interval?',
+                       chop => 'Change options?',
+    );
+    my $showhide;
+    if ($$show{$caller}) {
+        $showhide = '<b><a href="javascript:change_display(document.visible.'.
+                               'display_'.$caller.",'hide'".');">'.
+                               &mt('Hide').'</a></b>';
+   
+    } else {
+        $showhide = '<b><a href="javascript:change_display(document.visible.'.
+                               'display_'.$caller.",'show'".');">'.
+                               &mt('Show').'</a></b>';
+    }
+    
+    $r->print('
+         <table class="LC_nested_outer">
+          <tr>
+           <th class="LC_left_item">'.$$heading{$caller}.'</th>
+           <th class="LC_right_item">'.$showhide.'</th>
+          </tr>');
+     if (($caller eq 'abovethreshold') && ($$show{$caller})) {
+         if ($$show{$caller}) {
+             $r->print('
+              <tr>
+                <td class="LC_subheader" colspan="2"><a href="/adm/whatsnew?command=chgthreshold&amp;refpage='.$refpage.'">'.$lt{'chth'}.'</a></td>
+              </tr>');
+         }
+     } elsif (($caller eq 'versionchanges') && ($$show{$caller})) {
+         if ($$show{$caller}) {
+             $r->print('
+              <tr>
+                <td class="LC_subheader" colspan="2"><a href="/adm/whatsnew?command=chginterval&amp;refpage='.$refpage.'">'.$lt{'chin'}.'</a></td>
+              </tr>');
+         }
+     } elsif ($caller eq 'coursediscussion') {
+         if ($$show{$caller}) {
+             $r->print('
+              <tr>
+                <td class="LC_subheader" colspan="2"><a href="/adm/whatsnew?command=chgdisc&amp;refpage='.$refpage.'">'.$lt{'chop'}.'</a></td>
+              </tr>');
+         }
+     } elsif (($caller eq 'newroles') && ($$show{$caller})) {
+         if ($$show{$caller}) {
+             $r->print('
+              <tr>
+                <td class="LC_subheader" colspan="2"><a href="/adm/whatsnew?command=chgnewroleinterval&amp;refpage='.$refpage.'">'.$lt{'chin'}.'</a></td>
+              </tr>');
+         }
+     } elsif (($caller eq 'oldroles') && ($$show{$caller})) {
+         if ($$show{$caller}) {
+             $r->print('
+              <tr>
+                <td class="LC_subheader" colspan="2"><a href="/adm/whatsnew?command=chgoldroleinterval&amp;refpage='.$refpage.'">'.$lt{'chin'}.'</a></td>
+              </tr>');
+         }
+    } elsif (($caller eq 'crslogin') && ($$show{$caller})) {
+        if ($$show{$caller}) {
+            $r->print('
+              <tr>
+                <td class="LC_subheader" align="left"><span class="LC_nobreak"><label><input type="radio" name="logindetails" value="0" checked="checked" onclick="javascript:togglelogins();" />&nbsp;'.&mt('Summary').'</label><label><input type="radio" name="logindetails" value="1" onclick="javascript:togglelogins();" />&nbsp;'.&mt('Details').'</label></span></td><td class="LC_subheader"><a href="/adm/whatsnew?command=chgcrslogininterval&amp;refpage='.$refpage.'">'.$lt{'chin'}.'</a></td>
+              </tr>');
+        }
+    }
+
+    $r->print('
+              <tr>
+               <td colspan="2">
+                <table class="LC_nested">
+');
+    return;
+}
+
+sub end_box {
+    my ($r) = shift;
+    $r->print('
+   </table>
+  </td>
+ </tr>
+</table><br />');
+    return;
+}
+
 1;