--- loncom/interface/lonpopulate.pm	2006/08/08 19:02:04	1.46
+++ loncom/interface/lonpopulate.pm	2008/01/02 07:53:47	1.52
@@ -1,5 +1,5 @@
 # automated enrollment configuration handler
-# $Id: lonpopulate.pm,v 1.46 2006/08/08 19:02:04 albertel Exp $
+# $Id: lonpopulate.pm,v 1.52 2008/01/02 07:53:47 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -33,6 +33,7 @@ use Apache::lonhtmlcommon;
 use Apache::lonlocal;
 use Apache::loncoursedata;
 use Apache::longroup;
+use Apache::lonuserutils;
 use Apache::Constants qw(:common :http REDIRECT);
 use Time::Local;
 use LONCAPA::Enrollment;
@@ -113,30 +114,28 @@ function process(calling,numauto,nummanu
  }
  if (calling == "notify") {
      var totalnote = 0;
-     if (formName.notify[1].checked = true) {
-         for (var i=0; i<formName.elements.length; i++) {
-             var elementname = formName.elements[i].name;
-             var check_name = elementname.match($notify_check);
-             if (check_name != null) {
-                 if (formName.elements[i].checked) {
-                     totalnote ++;
-                 }
-             } 
-         }
-         if (totalnote > 0) {
-             if (formName.notify[1].checked = true) {
-                 if (confirm("You have indicated that you do not want notification of roster changes messages to be sent, but "+totalnote+" have been checked as recipients.\\nClick 'OK' to erase all recipients, or 'Cancel'.")) {
-                     checker  = 1;
-                 } else {
-                     checker = 0;
-                 }
-             }
-         } else {
-             if (formName.notify[0].checked = true) {
-                 alert("You have indicated that you want notification of roster changes messages to be sent, but you have not selected any recipients.");
-                 checker = 0;
-             }
-         }
+     for (var i=0; i<formName.elements.length; i++) {
+	 var elementname = formName.elements[i].name;
+	 var check_name = elementname.match($notify_check);
+	 if (check_name != null) {
+	     if (formName.elements[i].checked) {
+		 totalnote ++;
+	     }
+	 } 
+     }
+     if (totalnote > 0) {
+	 if (formName.notify[1].checked == true) {
+	     if (confirm("You have indicated that you do not want notification of roster changes messages to be sent, but "+totalnote+" have been checked as recipients.\\nClick 'OK' to erase all recipients, or 'Cancel'.")) {
+		 checker  = 1;
+	     } else {
+		 checker = 0;
+	     }
+	 }
+     } else {
+	 if (formName.notify[0].checked == true) {
+	     alert("You have indicated that you want notification of roster changes messages to be sent, but you have not selected any recipients.");
+	     checker = 0;
+	 }
      }
  }
  if (calling == "viewclass") {
@@ -209,9 +208,9 @@ sub print_mainbox {
     }
     my $page = '';
     if ($action eq "information") {
-        $page = "<b>Automated Enrollment</b>";
+        $page = "<b>Automated Student Enrollment</b>";
     } else {
-        $page =  '<a href="/adm/populate">Automated Enrollment</a>';
+        $page =  '<a href="/adm/populate">Automated Student Enrollment</a>';
         if ($reply) {
             if ($action eq "newcross") {
                 $action = "crosslist";
@@ -227,10 +226,10 @@ sub print_mainbox {
 <table width="100%" border="0" cellpadding="0" cellspacing="0">
  <tr>
   <td bgcolor="#CCCCFF"> 
-   <font size="2"><a href="/adm/menu">$realm</a> -&gt; <a href="/adm/dropadd">Enrollment Manager</a> -&gt; $page</font><br/>
+   <font size="2"><a href="/adm/menu">$realm</a> -&gt; <a href="/adm/createuser">User Management</a> -&gt; $page</font><br/>
   </td>
   <td align="right" bgcolor="#CCCCFF" valign="top">
-   <font size="+1">Automated Enrollment Manager&nbsp;</font>
+   <font size="+1">Automated Student Enrollment Manager&nbsp;</font>
   </td>
  </tr>
 </table>
@@ -399,7 +398,7 @@ ENDTWO
              <tr>
               <td>
                <font color=\"#888888\">
-Note: Any students added manually by course coordinators using the Enrollment Manager will be unaffected by the nightly removal process if you choose to enable it.
+Note: Any students added manually by course coordinators using the User Manager will be unaffected by the nightly removal process if you choose to enable it.
                </font>
               </td>
              </tr>
@@ -675,7 +674,7 @@ ENDTWO
          if ((@ccs + @showdom) > $notifycount) {
              $r->print(&mt("Check the checkbox(es) to initiate notification for people not currently informed of roster changes from the nightly enrollment update.<br />"));
          }
-         $r->print(&mt("Click 'Go' to store your changes.")."
+         $r->print(&mt("Click 'Go' to save your changes.")."
            <br/>
            <table width=\"100%\" border=\"0\" cellspadding=\"2\" cellspacing=\"2\">
             <tr>
@@ -709,7 +708,7 @@ ENDTWO
       ");
       if ($cross_str > 0) {
           $r->print("
-                Currently, this LON-CAPA course is crosslisted with $cross_str course section(s).  Students enrolling in these course sections will be automatically added to the class roster for the course, if you have chosen to enable a nightly automated enrollment update.  For each crosslisting, leave the checkbox checked if you want registered students in that course to be included in the student roster for LON-CAPA course: <b>$realm ($enrollvar{coursecode})</b>; otherwise uncheck it. If you wish to change the section ID assigned in your LON-CAPA course for a crosslisted course, enter the new section ID in the appropriate textbox. The LON-CAPA section ID can be left (or set to) empty, if you do not wish to tie a section ID to this crosslisting. If you wish to add new crosslisted courses, enter the number of new courses to add in the textbox at the bottom of the page. You will provide information about each of the new crosslistings on a subsequent page.  Click 'Go' to store your changes.
+                Currently, this LON-CAPA course is crosslisted with $cross_str course section(s).  Students enrolling in these course sections will be automatically added to the class roster for the course, if you have chosen to enable a nightly automated enrollment update.  For each crosslisting, leave the checkbox checked if you want registered students in that course to be included in the student roster for LON-CAPA course: <b>$realm ($enrollvar{coursecode})</b>; otherwise uncheck it. If you wish to change the section ID assigned in your LON-CAPA course for a crosslisted course, enter the new section ID in the appropriate textbox. The LON-CAPA section ID can be left (or set to) empty, if you do not wish to tie a section ID to this crosslisting. If you wish to add new crosslisted courses, enter the number of new courses to add in the textbox at the bottom of the page. You will provide information about each of the new crosslistings on a subsequent page.  Click 'Go' to save your changes.
               </td>
              </tr>
             </table>
@@ -795,8 +794,7 @@ ENDTWO
               </td>
              </tr>
              <tr>
-              <td>For each section, check the checkbox if you want registered students in that section to be included in the student roster for LON-CAPA course: <b>$realm ($enrollvar{coursecode})</b>; otherwise uncheck it. If you want to change the section ID designation used for this section in LON-CAPA, delete the current value in the LON-CAPA section ID textbox and enter the new value. The LON-CAPA section ID can be left (or set to) empty, if you do not wish to tie a section ID to this section. To add a new section, check the 'Enrollment in this course?' checkbox, and enter the desired LON-CAPA section ID in the appropriate textbox. Click 'Go' to store
-your changes.</td>
+              <td>For each section, check the checkbox if you want registered students in that section to be included in the student roster for LON-CAPA course: <b>$realm ($enrollvar{coursecode})</b>; otherwise uncheck it. If you want to change the section ID designation used for this section in LON-CAPA, delete the current value in the LON-CAPA section ID textbox and enter the new value. The LON-CAPA section ID can be left (or set to) empty, if you do not wish to tie a section ID to this section. To add a new section, check the 'Enrollment in this course?' checkbox, and enter the desired LON-CAPA section ID in the appropriate textbox. Click 'Go' to save your changes.</td>
              </tr>
             </table>
             <br/>
@@ -856,7 +854,7 @@ your changes.</td>
           if (@currsections) {
               my $secshow = @currsections;
               $r->print("
-                Currently, this LON-CAPA course incorporates enrollment from $secshow sections.  Students enrolling in any of these course sections will be automatically added to the class roster for the course, if you have chosen to enable a nightly automated enrollment update. For each section, uncheck the checkbox if you want registered students in that section to cease being included in the student roster for LON-CAPA course: <b>$realm ($enrollvar{coursecode})</b>; otherwise leave it checked. If you want to change the section ID designation used for this section in LON-CAPA, delete the current value in the LON-CAPA section ID textbox and enter the new value.  If you wish to add new course section, enter the number of new sections to add in the textbox at the bottom of the page. You will provide information about each of the new sections on a subsequent page. Click 'Go' to store your changes.
+                Currently, this LON-CAPA course incorporates enrollment from $secshow sections.  Students enrolling in any of these course sections will be automatically added to the class roster for the course, if you have chosen to enable a nightly automated enrollment update. For each section, uncheck the checkbox if you want registered students in that section to cease being included in the student roster for LON-CAPA course: <b>$realm ($enrollvar{coursecode})</b>; otherwise leave it checked. If you want to change the section ID designation used for this section in LON-CAPA, delete the current value in the LON-CAPA section ID textbox and enter the new value.  If you wish to add new course section, enter the number of new sections to add in the textbox at the bottom of the page. You will provide information about each of the new sections on a subsequent page. Click 'Go' to save your changes.
               </td>
              </tr>
             </table>
@@ -946,19 +944,13 @@ your changes.</td>
       ');
       my ($result,$perm_reqd)=&Apache::lonnet::auto_photo_permission($crs,$dom);
       my $can_enable = 1;
-      my $institution = $Apache::lonnet::domaindescription{$dom};
-      my $user;
-      if ($enrollvar{'courseowner'} =~ /^[^:]+:[^:]+$/) {
-          $user = $env{'user.name'}.':'.$env{'user.domain'};
-      } else {
-          $user = $env{'user.name'};
-      }
+      my $institution = &Apache::lonnet::domain($dom,'description');
       if ($result eq 'ok') {
           if ($perm_reqd eq 'yes') {
               if (!($enrollvar{'photopermission'} eq 'yes')) {
                   $can_enable = 0;
               } else {
-                  if ($user eq $enrollvar{'courseowner'}) {
+                  if (&user_is_courseowner($enrollvar{'courseowner'})) {
                       $r->print('
                     <tr>
                      <td>'.
@@ -985,13 +977,13 @@ your changes.</td>
                     <tr>
                      <td>
                       <font color="#888888">'.
-&mt('Note: if you enable automatic import of student photos, your course will automatically have access to photos stored by your institution for officially registered students, via a conduit established by your LON-CAPA domain coordinator.').'  
+&mt('Note: if you enable automatic import of student photos, your course will automatically have access to photos saved by your institution for officially registered students, via a conduit established by your LON-CAPA domain coordinator.').'  
                       </font>
                      </td>
                     </tr>
 ');
       } else {
-          if ($user eq $enrollvar{'courseowner'}) {
+          if (&user_is_courseowner($enrollvar{'courseowner'})) {
               $r->print('
                     <tr>
                      <td>'.
@@ -1009,7 +1001,7 @@ your changes.</td>
               $r->print('
                     <tr>
                      <td>'.
-&mt('The policies of your institution ([_1]) require that the course owner ([_2]) must indicate acceptance of the conditions of use of digital photos of registered students, before they may be made available for use in a course.',$institution,$ownername).'<br /><br />'.&mt('Please direct the course owner [_1] to visit the "Student photos" page in the Automated Enrollment Manager to indicate acceptance of these conditions of use.',$emailstr).'<br /><br /><input type="button" name="mainmenu" value="Go back" onclick="javascript:history.go(-1);" />
+&mt('The policies of your institution ([_1]) require that the course owner ([_2]) must indicate acceptance of the conditions of use of digital photos of registered students, before they may be made available for use in a course.',$institution,$ownername).'<br /><br />'.&mt('Please direct the course owner [_1] to visit the "Student photos" page in the Automated Student Enrollment Manager to indicate acceptance of these conditions of use.',$emailstr).'<br /><br /><input type="button" name="mainmenu" value="Go back" onclick="javascript:history.go(-1);" />
                     </td>
                    </tr>
                   </form>
@@ -1097,7 +1089,7 @@ onclick="javascript:document.photoupdate
 <input type ="hidden" name="state" value="process" />
 </form>');
           } else {
-              $r->print(&mt('Update of photos via the Automated Enrollment Manager is unavailable in this domain.').'<br /><br /><input type="button" name=mainmenu" value="Go back" onclick="javascript:history.go(-1);" />');
+              $r->print(&mt('Update of photos via the Automated Student Enrollment Manager is unavailable in this domain.').'<br /><br /><input type="button" name=mainmenu" value="Go back" onclick="javascript:history.go(-1);" />');
           }
       } else {
           $r->print('Update of photos is unavailable, as import of student photos is currently disabled.<br />Enable this first via: <a href="/adm/populate?action=photos">'.$$tasktitleref{'photos'}.'</a>');
@@ -1130,16 +1122,34 @@ onclick="javascript:document.photoupdate
       }
       my $status_select = &Apache::lonhtmlcommon::StatusOptions($env{'form.Status'});
 #  Get current classlist
-      my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
+      my %userlist;
+      my ($indexhash,$keylist) = &Apache::lonuserutils::make_keylist_array();
+      my $classlist = &Apache::loncoursedata::get_classlist();
+      my $secidx = &Apache::loncoursedata::CL_SECTION();
+      my ($permission,$allowed) = &Apache::lonuserutils::get_permission();
+      foreach my $student (keys(%{$classlist})) {
+          if (exists($permission->{'view_section'})) {
+              if ($classlist->{$student}[$secidx] ne $permission->{'view_section'}) {
+                  next;
+              } else {
+                  $userlist{$student} = $classlist->{$student};
+              }
+          } else {
+              $userlist{$student} = $classlist->{$student};
+          }
+      }
+
       if (! defined($classlist)) {
-          $r->print(&mt('There are no students either currently or previously enrolled.').
-                      "\n");
+          $r->print(&mt('There are no students either currently or previously enrolled.')."
+                      </td>
+                     </tr>\n");
       } else {
           $r->print(&mt('Student Status: [_1]',$status_select)."\n");
           $r->print('<input type="submit" value="'.&mt('Update Display').'" />'.
               "\n</p>\n");
-
-          my ($studentcount,$autocount,$manualcount,$lockcount,$unlockcount) = &Apache::londropadd::show_class_list($r,'autoenroll','nothing',$env{'form.Status'},$classlist,$keylist);
+          my $context = 'course';
+          my $mode = 'autoenroll';
+          my ($studentcount,$autocount,$manualcount,$lockcount,$unlockcount) = &Apache::lonuserutils::show_users_list($r,$context,$mode,$permission,$env{'form.Status'},\%userlist,$keylist);
           $r->print("
                      </td>
                     </tr>
@@ -1194,6 +1204,14 @@ END
                      </td>
                     </tr>
               ");
+          } else {
+              $r->print('
+                    <tr>
+                     <td><br />
+                      '.&mt('There are no students with the selected status.').'
+                     </td>
+                    </tr>
+              ');
           }
           $r->print("
                    </table>
@@ -1266,8 +1284,8 @@ sub print_accessdate_table {
          'freg' => 'for registered students added via automated enrollment',
          'fnew' => 'for new students added when you update the class roster',
          'ifad'  => 'If automated adds are enabled, then when students are added their student roles will become active on the date set here for first access, and their roles will become inactive on the date set here for last access.  These default access dates will be overridden for specific students if the institutional classlist data supplied to the automatic enrollment process includes entries for the startdate and enddate fields for those students.',
-         'ncds'  => 'changing default start and end access dates will affect future enrollments and ALSO currently inactive students (i.e., those for whom access will begin in the future).  To change access dates for currently active students, you should change the access dates via this screen, then use Enrollment manager -> Drop Students to drop the students, and then use Automated Enrollment Manager -> Update roster now to re-enroll them with the new access dates.'
-
+         'ncds'  => 'changing default start and end access dates will affect <b>future enrollments</b> and also <b>currently inactive</b> students (i.e., those for whom access will begin in the future).',
+         'tcha' => 'To change access dates for <b>currently active</b> students, use User Management -> "Display Class Lists and Manage Multiple Users" to display currently active students, then use the dropdown menu for "Action to take for selected users:" to choose "Change starting/ending dates", select the students to change, and click "Proceed".',
     );
     my $dateshow;
     if ( ($oldendshow eq '') && ($oldstartshow eq '') ) {
@@ -1350,7 +1368,7 @@ ENDFOUR
                     <td colspan=\"2\">&nbsp;</td>
                    </tr>
                    <tr>
-                    <td colspan=\"2\"><b>".&mt('Note').":</b> ".$lt{'ncds'}."</td>
+                    <td colspan=\"2\"><b>".&mt('Note').":</b> ".$lt{'ncds'}.' '.$lt{'tcha'}."</td>
                    </tr>
                   </table>
         ");
@@ -1590,17 +1608,16 @@ start and end access dates for this cour
 	    $response = "There was a problem processing your requested changes. The automated enrollment settings for this course have been left unchanged.<br/>";
         } else {
 	    if ($currstart == $startaccess) {
-	        $response = "The first access date for students added via automated enrollment has been left unchanged as $showstart.<br/>";
+	        $response = "The first access date for students being added via automated enrollment has been left unchanged as $showstart.<br/>";
 	    } else {
-	        $response = "The first access date for students added via automated enrollment has been changed to
-$showstart.<br/>";
+	        $response = "The first access date for students being added via automated enrollment has been changed to $showstart.<br/>";
 	    }
 	    if ($currend == $endaccess) {
-	        $response .= "The last access date for students added via automated enrollment has been left unchanged as $showend.<br/>";
+	        $response .= "The last access date for students being added via automated enrollment has been left unchanged as $showend.<br/>";
 	    } else {
-	        $response .= "The last access date for students automated enrollment has been changed to
-$showend.<br/>";
+	        $response .= "The last access date for students being added via automated enrollment has been changed to $showend.<br/>";
 	    }
+            $response .= '<br />'.&mt('Any change in access dates will only apply to students who are not currently active, i.e., those who currently have access start dates in the future, and to those added by future automated enrollment.').'<br /><br />'.&mt('To change access dates for any currently active students, use User Management -> "Display Class Lists and Manage Multiple Users" to display currently active students, then use the dropdown menu for "Action to take for selected users:" to choose "Change starting/ending dates", select the students to change, and click "Proceed".').'<br />';
 	
 # Generate message in case where old first access date was later than today, but new first access date is now today or earlier.
 	
@@ -2285,7 +2302,7 @@ sub photo_permission {
 					$dom,$crs);
     my ($showphotos,$response);
     if (exists($env{'form.cancel_agreement'})) {
-        if ($env{'user.name'} eq $settings{'internal.courseowner'}) {
+        if (&user_is_courseowner($settings{'internal.courseowner'})) {
             my %cenv = (
                 'internal.photopermission' => 'no',
             );
@@ -2354,8 +2371,8 @@ sub photo_permission {
 sub print_photo_agreement {
     my ($r,$realm,$dom,$crs,$action,$tasktitleref,$conditions,$courseowner)=@_;
     my $response;
-    my $institution = $Apache::lonnet::domaindescription{$dom};
-    if ($env{'user.name'} eq $courseowner) {
+    my $institution = &Apache::lonnet::domain($dom,'description');
+    if (&user_is_courseowner($courseowner)) {
         $response = '
 <script type="text/javascript">
 function agreement_result(caller) {
@@ -2402,7 +2419,7 @@ function agreement_result(caller) {
         if ($owneremail) {
             $emailstr = "(e-mail: $owneremail)";
         }
-        $response = &mt('The policies of your institution [_1] require that the course owner [_2] must indicate acceptance of the conditions of use of digital photos of registered students, before they may be made available for use in a course.',$institution,$ownername).'<br /><br />'.&mt('Please direct the course owner [_1] to visit the "Student photos" page in the Automated Enrollment Manager to indicate acceptance of these conditions of use',$emailstr);
+        $response = &mt('The policies of your institution [_1] require that the course owner [_2] must indicate acceptance of the conditions of use of digital photos of registered students, before they may be made available for use in a course.',$institution,$ownername).'<br /><br />'.&mt('Please direct the course owner [_1] to visit the "Student photos" page in the Automated Student Enrollment Manager to indicate acceptance of these conditions of use',$emailstr);
     }
     &print_reply($r,$response,$$tasktitleref{$action});
 }
@@ -2698,7 +2715,7 @@ sub print_viewclass_response {
 		       &Apache::loncommon::get_env_multiple('form.unlockchg'));
 
     foreach my $student (sort @typechglist) {
-        my ($uname,$udom) = split/:/,$student;
+        my ($uname,$udom) = split(/:/,$student);
         my $sdata    = $classlist->{$student};
         my $section  = $sdata->[$secidx];
         my $uid       = $sdata->[$ididx];
@@ -2736,7 +2753,7 @@ sub print_viewclass_response {
         }
     }
     foreach my $student (@lockchglist) {
-        my ($uname,$udom) = split/:/,$student;
+        my ($uname,$udom) = split(/:/,$student);
         my $sdata    = $classlist->{$student};
         my $section  = $sdata->[$secidx];
         my $uid       = $sdata->[$ididx];
@@ -2765,31 +2782,31 @@ sub print_viewclass_response {
         }
     }
     if ($chgtotal > 0) {
-        $response = "You requested a change in enrollment type for $chgtotal students.<br /><br />\n";
+        $response = &mt('You requested a change in enrollment type for [quant,_1,student].',$chgtotal).'<br /><br />'."\n";
         $classlist = &Apache::loncoursedata::get_classlist($dom,$crs);
         if ($chgok > 0) {
-            $response .= "The following $chgok changes were successful:<br />";
+            $response .= &mt('The following [quant,_1,change was,changes were] successful;',$chgtotal).':<br /><br />';
             $response .= &enrolltype_result(\%chg,$classlist,$endidx,$startidx,$ididx,$secidx,$typeidx);
         }
         if ($chgfail > 0) {
-            $response .= "The following $chgfail students were not modified successfully:&nbsp;<br />";
+            $response .= &mt('The following [quant,_1,student was,students were] not modified successfully',$chgfail).':&nbsp;<br />';
             $response .= &enrolltype_result(\%nochg,$classlist,$endidx,$startidx,$ididx,$secidx,$typeidx);
         }
         if ($othdom > 0) {
-            $response .= "The following $othdom students were not modified because students must be in the same LON-CAPA domain as the course, in order to be set to an enrollment type of 'auto':<br />"; 
+            $response .= &mt("The following [quant,_1,student was,students were] not modified because students must be in the same LON-CAPA domain as the course, in order to be set to an enrollment type of 'auto'",$othdom).':<br />'; 
             $response .= &enrolltype_result(\%otherdom,$classlist,$endidx,$startidx,$ididx,$secidx,$typeidx);
         }
         $response .= "<br /><br />";
     }
     if ($locktotal > 0) {
-        $response .= "You requested locking/unlocking for $locktotal manually enrolled students.<br /><br />\n";
+        $response .= &mt('You requested locking/unlocking for [quant,_1,manually enrolled student]',$locktotal).'<br /><br />'."\n";
         $classlist = &Apache::loncoursedata::get_classlist($dom,$crs);
         if ($lockok > 0) {
-            $response .= "The following $lockok changes were successful:<br />";
+            $response .= &mt('The following [quant,_1,change was,changes were] successful',$lockok).':<br /><br />';
             $response .= &enrolltype_result(\%lockchg,$classlist,$endidx,$startidx,$ididx,$secidx,$typeidx,$lockedidx);
         }
         if ($lockfail > 0) {
-            $response .= "The following $lockfail students were not modified successfully:&nbsp;<br />";
+            $response .= &mt('The following [quant,_1,student was,students were] not modified successfully',$lockfail).':&nbsp;<br />';
             $response .= &enrolltype_result(\%nolockchg,$classlist,$endidx,$startidx,$ididx,$secidx,$typeidx,$lockedidx);
         }
     }
@@ -2799,9 +2816,8 @@ sub print_viewclass_response {
 
 sub enrolltype_result {
     my ($changes,$classlist,$endidx,$startidx,$ididx,$secidx,$typeidx,$lockedidx) = @_;
-    my $reply = "
-            <table border='2'>
-             <tr>
+    my $reply = &Apache::loncommon::start_data_table().
+                &Apache::loncommon::start_data_table_header_row().'
               <th>username</th>
               <th>domain</th>
               <th>ID</th>
@@ -2809,11 +2825,11 @@ sub enrolltype_result {
               <th>section</th>
               <th>start date</th>
               <th>end date</th>
-              <th>enrollment change</th>
-             </tr>";
-    foreach (sort keys %{$changes}) {
-        my $sdata  = $classlist->{$_};
-        my ($uname,$udom) = split/:/,$_;
+              <th>enrollment change</th>'."\n".
+                &Apache::loncommon::end_data_table_header_row();
+    foreach my $chg (sort keys %{$changes}) {
+        my $sdata  = $classlist->{$chg};
+        my ($uname,$udom) = split(/:/,$chg);
         my $section  = $sdata->[$secidx];
         my $uid      = $sdata->[$ididx];
         my $start    = $sdata->[$startidx];
@@ -2830,24 +2846,23 @@ sub enrolltype_result {
             $end = &Apache::lonlocal::locallocaltime($end);
         }
         if (!defined($section) || ($section eq '')) {
-            $section eq '&nbsp;';
+            $section = '&nbsp;';
         }
         if (!defined($uid) || ($uid eq '')) {
-            $uid = '&nbsp';
+            $uid = '&nbsp;';
         }
-        $reply .= "
-             <tr>
-              <td>$uname</td>
-              <td>$udom</td>
-              <td>$uid</td>
-              <td>".&Apache::loncommon::plainname($uname,$udom)."</td>
-              <td>$section</td>
-              <td>$start</td>
-              <td>$end</td>
-              <td>$$changes{$_}</td>
-             </tr>";
+        $reply .= &Apache::loncommon::start_data_table_row().' 
+              <td>'.$uname.'</td>
+              <td>'.$udom.'</td>
+              <td>'.$uid.'</td>
+              <td>'.&Apache::loncommon::plainname($uname,$udom).'</td>
+              <td>'.$section.'</td>
+              <td>'.$start.'</td>
+              <td>'.$end.'</td>
+              <td>'.$$changes{$chg}.'</td>'."\n".
+             &Apache::loncommon::end_data_table_row();
     }
-    $reply .= "</table>";
+    $reply .= &Apache::loncommon::end_data_table();
     return $reply;
 }
 
@@ -2986,6 +3001,17 @@ sub validate_lcsec {
     return 'ok';
 }
 
+sub user_is_courseowner {
+    my ($courseowner) = @_;
+    my $user;
+    if ($courseowner =~ /^[^:]+:[^:]+$/) {
+	$user = $env{'user.name'}.':'.$env{'user.domain'};
+    } else {
+	$user = $env{'user.name'};
+    }
+    return ($user eq $courseowner);
+}
+    
 ###################################################################
 sub handler {
     my $r = shift;