--- loncom/interface/loncreateuser.pm	2005/04/07 06:56:23	1.101
+++ loncom/interface/loncreateuser.pm	2006/05/09 17:21:13	1.116
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Create a user
 #
-# $Id: loncreateuser.pm,v 1.101 2005/04/07 06:56:23 albertel Exp $
+# $Id: loncreateuser.pm,v 1.116 2006/05/09 17:21:13 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -108,23 +108,23 @@ sub my_custom_roles {
 
 sub authorpriv {
     my ($auname,$audom)=@_;
-    if (($auname ne $env{'user.name'}) ||
-        (($audom ne $env{'user.domain'}) &&
-         ($audom ne $env{'request.role.domain'}))) { return ''; }
-    unless (&Apache::lonnet::allowed('cca',$audom)) { return ''; }
+    unless ((&Apache::lonnet::allowed('cca',$audom.'/'.$auname))
+         || (&Apache::lonnet::allowed('caa',$audom.'/'.$auname))) { return ''; }
     return 1;
 }
 
 # =================================================================== Phase one
 
 sub print_username_entry_form {
-    my $r=shift;
+    my ($r) = @_;
     my $defdom=$env{'request.role.domain'};
     my @domains = &Apache::loncommon::get_domains();
     my $domform = &Apache::loncommon::select_dom_form($defdom,'ccdomain');
-    my $html=&Apache::lonxml::xmlbegin();
-    my $bodytag =&Apache::loncommon::bodytag('Create Users, Change User Privileges').&Apache::loncommon::help_open_menu('',undef,undef,'',282,'Instructor Interface');
     my $selscript=&Apache::loncommon::studentbrowser_javascript();
+    my $start_page =
+	&Apache::loncommon::start_page('Create Users, Change User Privileges',
+				       $selscript);
+
     my $sellink=&Apache::loncommon::selectstudent_link
                                         ('crtuser','ccuname','ccdomain');
     my %existingroles=&my_custom_roles();
@@ -139,15 +139,11 @@ sub print_username_entry_form {
                     'nr'   => "Name of Role",
                     'cre'  => "Custom Role Editor"
 				       );
+    my $help = &Apache::loncommon::help_open_menu('',undef,undef,'',282,'Instructor Interface');
     my $helpsiur=&Apache::loncommon::help_open_topic('Course_Change_Privileges');
     my $helpecpr=&Apache::loncommon::help_open_topic('Course_Editing_Custom_Roles');
     $r->print(<<"ENDDOCUMENT");
-$html
-<head>
-<title>The LearningOnline Network with CAPA</title>
-$selscript
-</head>
-$bodytag
+$start_page
 <form action="/adm/createuser" method="post" name="crtuser">
 <input type="hidden" name="phase" value="get_user_info">
 <h2>$lt{siur}$helpsiur</h2>
@@ -158,14 +154,121 @@ $lt{'dom'}:</td><td>$domform</td></tr>
 </table>
 <input name="userrole" type="submit" value="$lt{usrr}" />
 </form>
+ENDDOCUMENT
+   if (&Apache::lonnet::allowed('mcr','/')) {
+       $r->print(<<ENDCUSTOM);
 <form action="/adm/createuser" method="post" name="docustom">
 <input type="hidden" name="phase" value="selected_custom_edit">
 <h2>$lt{'ecrp'}$helpecpr</h2>
 $lt{'nr'}: $choice <input type="text" size="15" name="newrolename" /><br />
 <input name="customeditor" type="submit" value="$lt{'cre'}" />
-</body>
-</html>
-ENDDOCUMENT
+</form>
+ENDCUSTOM
+    }
+    $r->print(&Apache::loncommon::end_page());
+}
+
+
+sub user_modification_js {
+    my ($pjump_def,$dc_setcourse_code,$nondc_setsection_code,$groupslist)=@_;
+    
+    return <<END;
+<script type="text/javascript" language="Javascript">
+
+    function pclose() {
+        parmwin=window.open("/adm/rat/empty.html","LONCAPAparms",
+                 "height=350,width=350,scrollbars=no,menubar=no");
+        parmwin.close();
+    }
+
+    $pjump_def
+    $dc_setcourse_code
+
+    function dateset() {
+        eval("document.cu."+document.cu.pres_marker.value+
+            ".value=document.cu.pres_value.value");
+        pclose();
+    }
+
+    $nondc_setsection_code
+
+    function setSections() {
+        var re1 = /^currsec_/;
+        var groups = new Array($groupslist);
+        for (var i=0;i<document.cu.elements.length;i++) {
+            var str = document.cu.elements[i].name;
+            var checkcurr = str.match(re1);
+            if (checkcurr != null) {
+                var re2 = /^currsec_[a-zA-Z0-9]+_[a-zA-Z0-9]+_(\\w+)\$/;
+                if (document.cu.elements[i-1].checked == true) {
+                    var re2 = /^currsec_[a-zA-Z0-9]+_[a-zA-Z0-9]+_(\\w+)\$/;
+                    match = re2.exec(str);
+                    var role = match[1];
+                    if (role == 'cc') {
+                        alert("Section designations do not apply to Course Coordinator roles.\\nA course coordinator role will be added with access to all sections.");
+                    }
+                    else {
+                        var sections = '';
+                        var numsec = 0;
+                        var sections;
+                        for (var j=0; j<document.cu.elements[i].length; j++) {
+                            if (document.cu.elements[i].options[j].selected == true ) {
+                                if (document.cu.elements[i].options[j].value != "") {
+                                    if (numsec == 0) {
+                                        if (document.cu.elements[i].options[j].value != "") {
+                                            sections = document.cu.elements[i].options[j].value;
+                                            numsec ++;
+                                        }
+                                    }
+                                    else {
+                                        sections = sections + "," +  document.cu.elements[i].options[j].value
+                                        numsec ++;
+                                    }
+                                }
+                            }
+                        }
+                        if (numsec > 0) {
+                            if (document.cu.elements[i+1].value != "" && document.cu.elements[i+1].value != null) {
+                                sections = sections + "," +  document.cu.elements[i+1].value;
+                            }
+                        }
+                        else {
+                            sections = document.cu.elements[i+1].value;    
+                        }
+                        var newseclist = document.cu.elements[i+1].value;
+                        var newsecs = new Array();
+                        if (newseclist != null && newseclist != "") {
+                            newsecs = newseclist.split(/,/g);
+                            numsec = numsec + newsecs.length;
+                        }
+                        if ((role == 'st') && (numsec > 1)) {
+                            alert("In each course, each user may only have one student role at a time. You had selected "+numsec+" sections.\\nPlease modify your selections so they include no more than one section.")  
+                            return;
+                        }
+                        else {
+                            for (var j=0; j<newsecs.length; j++) {
+                                if ((newsecs[j] == 'all') || 
+                                    (newsecs[j] == 'none')) {
+                                    alert("'"+newsecs[j]+"' may not be used as the name for a section, as it is a reserved word.\\nPlease choose a different section name.");
+                                    return;
+                                }
+                                for (var k=0; k<groups.length; k++) {
+                                    if (newsecs[j] == groups[k]) {
+                                        alert("'"+newsecs[j]+"' may not be used as a section name, as it is the name of a course group.\\nSection names and group names must be distinct. Please choose a different section name.");
+                                        return;
+                                    }
+                                }
+                            }
+                            document.cu.elements[i+2].value = sections;
+                        }
+                    }
+                }
+            }
+        }
+        document.cu.submit();
+    }
+</script>
+END
 }
 
 # =================================================================== Phase two
@@ -198,10 +301,19 @@ sub print_user_modification_page {
     $ccdomain=~s/\W//g;
     my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
     my $dc_setcourse_code = '';
-    my $loaditem;
+    my $nondc_setsection_code = '';
+    my %loaditem;
+
+    my $groupslist;
+    my %curr_groups = &Apache::loncommon::coursegroups();
+    if (%curr_groups) {
+        $groupslist = join('","',sort(keys(%curr_groups)));
+        $groupslist = '"'.$groupslist.'"';   
+    }
+
     if ($env{'request.role'} =~ m-^dc\./(\w+)/$-) {
         my $dcdom = $1;
-        $loaditem = qq|OnLoad="document.cu.coursedesc.value=''"|;
+        $loaditem{'onload'} = "document.cu.coursedesc.value=''";
         $dc_setcourse_code = <<"ENDSCRIPT";
     function setCourse() {
         var course = document.cu.dccourse.value;
@@ -213,6 +325,7 @@ sub print_user_modification_page {
             var userrole = document.cu.role.options[document.cu.role.selectedIndex].value
             var section="";
             var numsections = 0;
+            var newsecs = new Array();
             for (var i=0; i<document.cu.currsec.length; i++) {
                 if (document.cu.currsec.options[i].selected == true ) {
                     if (document.cu.currsec.options[i].value != "" && document.cu.currsec.options[i].value != null) { 
@@ -234,13 +347,28 @@ sub print_user_modification_page {
                 else {
                     section = section + "," +  document.cu.newsec.value
                 }
-                var numsplit = document.cu.newsec.value.split(/,/g);
-                numsections = numsections + numsplit.length;
+                newsecs = document.cu.newsec.value.split(/,/g);
+                numsections = numsections + newsecs.length;
             }
             if ((userrole == 'st') && (numsections > 1)) {
                 alert("In each course, each user may only have one student role at a time. You had selected "+numsections+" sections.\\nPlease modify your selections so they include no more than one section.")
                 return;
             }
+            for (var j=0; j<newsecs.length; j++) {
+                if ((newsecs[j] == 'all') || (newsecs[j] == 'none')) {
+                    alert("'"+newsecs[j]+"' may not be used as the name for a section, as it is a reserved word.\\nPlease choose a different section name.");
+                    return;
+                }
+                if (document.cu.groups.value != '') {
+                    var groups = document.cu.groups.value.split(/,/g);
+                    for (var k=0; k<groups.length; k++) {
+                        if (newsecs[j] == groups[k]) {
+                            alert("'"+newsecs[j]+"' may not be used as the name for a section, as it is the name of a course group.\\nSection names and group names must be distinct. Please choose a different section name.");
+                            return; 
+                        }
+                    }
+                }
+            }
             if ((userrole == 'cc') && (numsections > 0)) {
                 alert("Section designations do not apply to Course Coordinator roles.\\nA course coordinator role will be added with access to all sections.");
                 section = "";
@@ -271,31 +399,11 @@ sub print_user_modification_page {
         return -1;
     }
 ENDSCRIPT
-    }
-    my $html=&Apache::lonxml::xmlbegin();
-    my $dochead =<<"ENDDOCHEAD";
-$html
-<head>
-<title>The LearningOnline Network with CAPA</title>
-<script type="text/javascript" language="Javascript">
-
-    function pclose() {
-        parmwin=window.open("/adm/rat/empty.html","LONCAPAparms",
-                 "height=350,width=350,scrollbars=no,menubar=no");
-        parmwin.close();
-    }
-
-    $pjump_def
-    $dc_setcourse_code
-
-    function dateset() {
-        eval("document.cu."+document.cu.pres_marker.value+
-            ".value=document.cu.pres_value.value");
-        pclose();
-    }
-
+    } else {
+        $nondc_setsection_code = <<"ENDSECCODE";
     function setSections() {
         var re1 = /^currsec_/;
+        var groups = new Array($groupslist);
         for (var i=0;i<document.cu.elements.length;i++) {
             var str = document.cu.elements[i].name;
             var checkcurr = str.match(re1);
@@ -331,10 +439,10 @@ $html
                         if (numsec > 0) {
                             if (document.cu.elements[i+1].value != "" && document.cu.elements[i+1].value != null) {
                                 sections = sections + "," +  document.cu.elements[i+1].value;
-                            } 
+                            }
                         }
                         else {
-                            sections = document.cu.elements[i+1].value;    
+                            sections = document.cu.elements[i+1].value;
                         }
                         var newsecs = document.cu.elements[i+1].value;
                         if (newsecs != null && newsecs != "") {
@@ -342,10 +450,23 @@ $html
                             numsec = numsec + numsplit.length;
                         }
                         if ((role == 'st') && (numsec > 1)) {
-                            alert("In each course, each user may only have one student role at a time. You had selected "+numsec+" sections.\\nPlease modify your selections so they include no more than one section.")  
+                            alert("In each course, each user may only have one student role at a time. You had selected "+numsec+" sections.\\nPlease modify your selections so they include no more than one section.")
                             return;
                         }
-                        else { 
+                        else {
+                            for (var j=0; j<numsplit.length; j++) {
+                                if ((numsplit[j] == 'all') ||
+                                    (numsplit[j] == 'none')) {
+                                    alert("'"+numsplit[j]+"' may not be used as the name for a section, as it is a reserved word.\\nPlease choose a different section name.");
+                                    return;
+                                }
+                                for (var k=0; k<groups.length; k++) {
+                                    if (numsplit[j] == groups[k]) {
+                                        alert("'"+numsplit[j]+"' may not be used as a section name, as it is the name of a course group.\\nSection names and group names must be distinct. Please choose a different section name.");
+                                        return;
+                                    }
+                                }
+                            }
                             document.cu.elements[i+2].value = sections;
                         }
                     }
@@ -354,11 +475,14 @@ $html
         }
         document.cu.submit();
     }
-</script>
-</head>
-ENDDOCHEAD
-    $r->print(&Apache::loncommon::bodytag(
-                                     'Create Users, Change User Privileges',undef,$loaditem));
+ENDSECCODE
+    }
+    my $js = &user_modification_js($pjump_def,$dc_setcourse_code,
+                                   $nondc_setsection_code,$groupslist);
+    my $start_page = 
+	&Apache::loncommon::start_page('Create Users, Change User Privileges',
+				       $js,{'add_entries' => \%loaditem,});
+
     my $forminfo =<<"ENDFORMINFO";
 <form action="/adm/createuser" method="post" name="cu">
 <input type="hidden" name="phase"       value="update_user_data">
@@ -400,7 +524,7 @@ ENDFORMINFO
 	my $genhelp=&Apache::loncommon::help_open_topic('Generation');
         &initialize_authen_forms();
 	$r->print(<<ENDNEWUSER);
-$dochead
+$start_page
 <h1>$lt{'cnu'}</h1>
 $forminfo
 <h2>$lt{'nu'} "$ccuname" $lt{'id'} $ccdomain</h2>
@@ -441,7 +565,7 @@ ENDNEWUSER
                     'gen'  => "generation"
 				       );
 	$r->print(<<ENDCHANGEUSER);
-$dochead
+$start_page
 <h1>$lt{'cup'}</h1>
 $forminfo
 <h2>$lt{'usr'} "$ccuname" $lt{'id'} "$ccdomain"</h2>
@@ -544,7 +668,7 @@ END
                    $bgcol=~s/[^7-9a-e]//g;
                    $bgcol=substr($bgcol.$bgcol.$bgcol.'ffffff',2,6);
                    if ($area=~/^\/(\w+)\/(\d\w+)\/(\w+)/) {
-                       $carea.='<br>Section/Group: '.$3;
+                       $carea.='<br />Section: '.$3;
 		       $sortkey.="\0$3";
                    }
                    $area=$carea;
@@ -574,7 +698,7 @@ END
 		       $class='Domain';
 		   }
                }
-               if ($role_code eq 'ca') {
+               if (($role_code eq 'ca') || ($role_code eq 'aa')) {
                    $area=~/\/(\w+)\/(\w+)/;
 		   if (&authorpriv($2,$1)) {
 		       $allowed=1;
@@ -663,7 +787,7 @@ END
 	my $currentauth=&Apache::lonnet::queryauthenticate($ccuname,$ccdomain);
 	if ($currentauth=~/^krb(4|5):/) {
 	    $currentauth=~/^krb(4|5):(.*)/;
-	    my $krbdefdom=$1;
+	    my $krbdefdom=$2;
             my %param = ( formname => 'document.cu',
                           kerb_def_dom => $krbdefdom 
                           );
@@ -778,6 +902,7 @@ ENDOTHERAUTHS
                     'sta'  => "Start",
                     'end'  => "End",
                     'cau'  => "Co-Author",
+                    'caa'  => "Assistant Co-Author",
                     'ssd'  => "Set Start Date",
                     'sed'  => "Set End Date"
 				       );
@@ -796,6 +921,17 @@ ENDOTHERAUTHS
 <a href=
 "javascript:pjump('date_end','End Date Co-Author',document.cu.end_$cudom\_$cuname\_ca.value,'end_$cudom\_$cuname\_ca','cu.pres','dateset')">$lt{'sed'}</a></td>
 </tr>
+<tr>
+<td><input type=checkbox name="act_$cudom\_$cuname\_aa" /></td>
+<td>$lt{'caa'}</td>
+<td>$cudom\_$cuname</td>
+<td><input type=hidden name="start_$cudom\_$cuname\_aa" value='' />
+<a href=
+"javascript:pjump('date_start','Start Date Assistant Co-Author',document.cu.start_$cudom\_$cuname\_aa.value,'start_$cudom\_$cuname\_aa','cu.pres','dateset')">$lt{'ssd'}</a></td>
+<td><input type=hidden name="end_$cudom\_$cuname\_aa" value='' />
+<a href=
+"javascript:pjump('date_end','End Date Assistant Co-Author',document.cu.end_$cudom\_$cuname\_aa.value,'end_$cudom\_$cuname\_aa','cu.pres','dateset')">$lt{'sed'}</a></td>
+</tr>
 </table>
 ENDCOAUTH
     }
@@ -840,7 +976,6 @@ ENDDROW
 #
 # Course level
 #
-    my $num_sections;
 
     if ($env{'request.role'} =~ m-^dc\./(\w+)/$-) {
         $r->print(&course_level_dc($1));
@@ -849,7 +984,7 @@ ENDDROW
         $r->print(&course_level_table(%inccourses));
         $r->print('<hr /><input type="button" value="'.&mt('Modify User').'" onClick="setSections()">'."\n");
     }
-    $r->print("</form></body></html>");
+    $r->print("</form>".&Apache::loncommon::end_page());
 }
 
 # ================================================================= Phase Three
@@ -859,22 +994,16 @@ sub update_user_data {
                                           $env{'form.ccdomain'});
     # Error messages
     my $error     = '<font color="#ff0000">'.&mt('Error').':</font>';
-    my $end       = '</body></html>';
-    # Print header
-    my $html=&Apache::lonxml::xmlbegin();
-    $r->print(<<ENDTHREEHEAD);
-$html
-<head>
-<title>The LearningOnline Network with CAPA</title>
-</head>
-ENDTHREEHEAD
+    my $end       = &Apache::loncommon::end_page();
+
     my $title;
     if (exists($env{'form.makeuser'})) {
 	$title='Set Privileges for New User';
     } else {
         $title='Modify User Privileges';
     }
-    $r->print(&Apache::loncommon::bodytag($title));
+    $r->print(&Apache::loncommon::start_page($title));
+    my %disallowed;
     # Check Inputs
     if (! $env{'form.ccuname'} ) {
 	$r->print($error.&mt('No login name specified').'.'.$end);
@@ -990,7 +1119,7 @@ ENDMODIFYUSERHEAD
                       &Apache::lonnet::modifyuserauth(
 		       $env{'form.ccdomain'},$env{'form.ccuname'},
                        $amode,$genpwd));
-            $r->print('<br>'.&mt('Home server').': '.&Apache::lonnet::homeserver
+            $r->print('<br />'.&mt('Home server').': '.&Apache::lonnet::homeserver
 		  ($env{'form.ccuname'},$env{'form.ccdomain'}));
 	} else {
 	    # Okay, this is a non-fatal error.
@@ -1088,7 +1217,7 @@ END
 # Revoke standard role
 	        $r->print(&mt('Revoking').' '.$2.' in '.$1.': <b>'.
                      &Apache::lonnet::revokerole($env{'form.ccdomain'},
-                     $env{'form.ccuname'},$1,$2).'</b><br>');
+                     $env{'form.ccuname'},$1,$2).'</b><br />');
 		if ($2 eq 'st') {
 		    $1=~/^\/(\w+)\/(\w+)/;
 		    my $cid=$1.'_'.$2;
@@ -1099,22 +1228,23 @@ END
                          &Apache::lonnet::escape($env{'form.ccuname'}.':'.
                              $env{'form.ccdomain'}).'='.
                          &Apache::lonnet::escape($now.':'),
-	                     $env{'course.'.$cid.'.home'}).'</b><br>');
+	                     $env{'course.'.$cid.'.home'}).'</b><br />');
 		}
 	    } 
 	    if ($_=~/^form\.rev\:([^\_]+)\_cr\.cr\/(\w+)\/(\w+)\/(\w+)$/) {
 # Revoke custom role
-		$r->print(&mt('Revoking custom role').
+		$r->print(&mt('Revoking custom role:').
                       ' '.$4.' by '.$3.'@'.$2.' in '.$1.': <b>'.
                       &Apache::lonnet::revokecustomrole($env{'form.ccdomain'},
 				  $env{'form.ccuname'},$1,$2,$3,$4).
-		'</b><br>');
+		'</b><br />');
 	    }
 	} elsif ($_=~/^form\.del/) {
-	    if ($_=~/^form\.del\:([^\_]+)\_([^\_]+)$/) {
+	    if ($_=~/^form\.del\:([^\_]+)\_([^\_\.]+)$/) {
+# Delete standard role
 	        $r->print(&mt('Deleting').' '.$2.' in '.$1.': '.
                      &Apache::lonnet::assignrole($env{'form.ccdomain'},
-                     $env{'form.ccuname'},$1,$2,$now,0,1).'<br>');
+                     $env{'form.ccuname'},$1,$2,$now,0,1).'<br />');
 		if ($2 eq 'st') {
 		    $1=~/^\/(\w+)\/(\w+)/;
 		    my $cid=$1.'_'.$2;
@@ -1125,13 +1255,23 @@ END
                          &Apache::lonnet::escape($env{'form.ccuname'}.':'.
                              $env{'form.ccdomain'}).'='.
                          &Apache::lonnet::escape($now.':'),
-	                     $env{'course.'.$cid.'.home'}).'</b><br>');
+	                     $env{'course.'.$cid.'.home'}).'</b><br />');
 		}
-	    } 
+            }
+            if ($_=~/^form\.del\:([^\_]+)\_cr\.cr\/(\w+)\/(\w+)\/(\w+)$/) {
+                my ($url,$rdom,$rnam,$rolename) = ($1,$2,$3,$4);
+# Delete custom role
+                $r->print(&mt('Deleting custom role [_1] by [_2]@[_3] in [_4]',
+                      $rolename,$rnam,$rdom,$url).': <b>'.
+                      &Apache::lonnet::assigncustomrole($env{'form.ccdomain'},
+                         $env{'form.ccuname'},$url,$rdom,$rnam,$rolename,$now,
+                         0,1).'</b><br />');
+            }
 	} elsif ($_=~/^form\.ren/) {
             my $udom = $env{'form.ccdomain'};
             my $uname = $env{'form.ccuname'};
-	    if ($_=~/^form\.ren\:([^\_]+)\_([^\_]+)$/) {
+# Re-enable standard role
+	    if ($_=~/^form\.ren\:([^\_]+)\_([^\_\.]+)$/) {
                 my $url = $1;
                 my $role = $2;
                 my $logmsg;
@@ -1151,11 +1291,20 @@ END
                 } else {
 		    my $result=&Apache::lonnet::assignrole($env{'form.ccdomain'},
                                $env{'form.ccuname'},$url,$role,0,$now);
-		    $output = &mt('Re-Enabling [_1] in [_2]: [_3]',
+		    $output = &mt('Re-enabling [_1] in [_2]: <b>[_3]</b>',
 			      $role,$url,$result).'<br />';
 		}
                 $r->print($output);
-	    } 
+	    }
+# Re-enable custom role
+            if ($_=~/^form\.ren\:([^\_]+)\_cr\.cr\/(\w+)\/(\w+)\/(\w+)$/) {
+                my ($url,$rdom,$rnam,$rolename) = ($1,$2,$3,$4);
+                my $result = &Apache::lonnet::assigncustomrole(
+                               $env{'form.ccdomain'}, $env{'form.ccuname'},
+                               $url,$rdom,$rnam,$rolename,0,$now);
+                $r->print(&mt('Re-enabling custom role [_1] by [_2]@[_3] in [_4] : <b>[_5]</b>',
+                          $rolename,$rnam,$rdom,$url,$result).'<br />');
+            }
 	} elsif ($_=~/^form\.act/) {
             my $udom = $env{'form.ccdomain'};
             my $uname = $env{'form.ccuname'};
@@ -1178,8 +1327,15 @@ END
                 if ($num_sections == 0) {
                     $r->print(&commit_customrole($udom,$uname,$url,$three,$four,$five,$start,$end));
                 } else {
-                    foreach (sort {$a cmp $b} keys %sections) {
-                        my $securl = $url.'/'.$_;
+		    my %curr_groups =
+			&Apache::loncommon::coursegroups($one,$two);
+                    foreach my $sec (sort {$a cmp $b} keys %sections) {
+                        if (($sec eq 'none') || ($sec eq 'all') || 
+                            exists($curr_groups{$sec})) {
+                            $disallowed{$sec} = $url;
+                            next;
+                        }
+                        my $securl = $url.'/'.$sec;
 		        $r->print(&commit_customrole($udom,$uname,$securl,$three,$four,$five,$start,$end));
                     }
                 }
@@ -1201,10 +1357,17 @@ END
                 if ($num_sections == 0) {
                     $r->print(&commit_standardrole($udom,$uname,$url,$three,$start,$end,$one,$two,''));
                 } else {
+                    my %curr_groups = 
+			&Apache::loncommon::coursegroups($one,$two);
                     my $emptysec = 0;
                     foreach my $sec (sort {$a cmp $b} keys %sections) {
                         $sec =~ s/\W//g;
-                        if ($sec ne '') {  
+                        if ($sec ne '') {
+                            if (($sec eq 'none') || ($sec eq 'all') || 
+                                exists($curr_groups{$sec})) {
+                                $disallowed{$sec} = $url;
+                                next;
+                            }
                             my $securl = $url.'/'.$sec;
                             $r->print(&commit_standardrole($udom,$uname,$securl,$three,$start,$end,$one,$two,$sec));
                         } else {
@@ -1245,13 +1408,22 @@ END
                     }
                 }
 	    } else {
-		$r->print('<p>'.&mt('ERROR').': '.&mt('Unknown command').' <tt>'.$_.'</tt></p><br>');
+		$r->print('<p>'.&mt('ERROR').': '.&mt('Unknown command').' <tt>'.$_.'</tt></p><br />');
+            }
+            foreach my $key (sort(keys(%disallowed))) {
+                if (($key eq 'none') || ($key eq 'all')) {  
+                    $r->print('<p>'.&mt('[_1] may not be used as the name for a section, as it is a reserved word.',$key));
+                } else {
+                    $r->print('<p>'.&mt('[_1] may not be used as the name for a section, as it is the name of a course group.',$key));
+                }
+                $r->print(' '.&mt('Please <a href="javascript:history.go(-1)">go back</a> and choose a different section name.').'</p><br />');
             }
-	} 
+	}
     } # End of foreach (keys(%env))
 # Flush the course logs so reverse user roles immediately updated
     &Apache::lonnet::flushcourselogs();
-    $r->print('</body></html>');
+    $r->print('<p><a href="/adm/createuser">Create/Modify Another User</a></p>');
+    $r->print(&Apache::loncommon::end_page());
 }
 
 sub commit_customrole {
@@ -1261,7 +1433,7 @@ sub commit_customrole {
                          ($end?', ending '.localtime($end):'').': <b>'.
               &Apache::lonnet::assigncustomrole(
                  $udom,$uname,$url,$three,$four,$five,$end,$start).
-                 '</b><br>';
+                 '</b><br />';
     return $output;
 }
 
@@ -1286,7 +1458,7 @@ sub commit_standardrole {
                ($end?', '.&mt('ending').' '.localtime($end):'').': <b>'.
                &Apache::lonnet::assignrole(
                    $udom,$uname,$url,$three,$end,$start).
-                   '</b><br>';
+                   '</b><br />';
     }
     return $output;
 }
@@ -1332,7 +1504,7 @@ sub commit_studentrole {
         }
     } else {
         $$logmsg .= "Incomplete course id defined.  Addition of user $uname from domain $udom to course $one\_$two, section $sec not completed.$linefeed";
-        $result = "Error: incomplete course id\n";
+        $result = "error: incomplete course id\n";
     }
     return $result;
 }
@@ -1387,14 +1559,14 @@ sub custom_role_editor {
         return;
     }
 
-    $r->print(&Apache::loncommon::bodytag(
-                     'Create Users, Change User Privileges').'<h2>');
+    $r->print(&Apache::loncommon::start_page('Custom Role Editor'));
     my $syspriv='';
     my $dompriv='';
     my $coursepriv='';
     my ($rdummy,$roledef)=
 			 &Apache::lonnet::get('roles',["rolesdef_$rolename"]);
 # ------------------------------------------------------- Does this role exist?
+    $r->print('<h2>');
     if (($rdummy ne 'con_lost') && ($roledef ne '')) {
 	$r->print(&mt('Existing Role').' "');
 # ------------------------------------------------- Get current role privileges
@@ -1466,12 +1638,13 @@ ENDCCF
     '</td></tr>');
     }
     $r->print(
-   '<table><input type="submit" value="'.&mt('Define Role').'" /></form></body></html>');
+   '<table><input type="submit" value="'.&mt('Define Role').'" /></form>'.
+	      &Apache::loncommon::end_page());
 }
 
 # ---------------------------------------------------------- Call to definerole
 sub set_custom_role {
-    my $r=shift;
+    my ($r) = @_;
 
     my $rolename=$env{'form.rolename'};
 
@@ -1482,10 +1655,10 @@ sub set_custom_role {
         return;
     }
 
-    $r->print(&Apache::loncommon::bodytag(
-                     'Create Users, Change User Privileges').'<h2>');
+    $r->print(&Apache::loncommon::start_page('Save Custom Role').'<h2>');
     my ($rdummy,$roledef)=
-			 &Apache::lonnet::get('roles',["rolesdef_$rolename"]);
+	&Apache::lonnet::get('roles',["rolesdef_$rolename"]);
+
 # ------------------------------------------------------- Does this role exist?
     if (($rdummy ne 'con_lost') && ($roledef ne '')) {
 	$r->print(&mt('Existing Role').' "');
@@ -1535,7 +1708,8 @@ sub set_custom_role {
 						$env{'user.name'},
 						$rolename));
     }
-    $r->print('</body></html>');
+    $r->print('<p><a href="/adm/createuser">Create another role, or Create/Modify a user.</a></p>');
+    $r->print(&Apache::loncommon::end_page());
 }
 
 # ================================================================ Main Handler
@@ -1552,7 +1726,7 @@ sub handler {
         (&Apache::lonnet::allowed('cin',$env{'request.course.id'})) || 
         (&Apache::lonnet::allowed('ccr',$env{'request.course.id'})) || 
         (&Apache::lonnet::allowed('cep',$env{'request.course.id'})) ||
-        (&Apache::lonnet::allowed('cca',$env{'request.role.domain'})) ||
+	(&authorpriv($env{'user.name'},$env{'request.role.domain'})) ||
         (&Apache::lonnet::allowed('mau',$env{'request.role.domain'}))) {
        &Apache::loncommon::content_type($r,'text/html');
        $r->send_http_header;
@@ -1592,7 +1766,7 @@ sub course_level_table {
             'act'  => "Activate",
             'rol'  => "Role",
             'ext'  => "Extent",
-            'grs'  => "Group/Section",
+            'grs'  => "Section",
             'sta'  => "Start",
             'end'  => "End"
     );
@@ -1608,11 +1782,11 @@ sub course_level_table {
 	$bgcol=~s/[^7-9a-e]//g;
 	$bgcol=substr($bgcol.$bgcol.$bgcol.'ffffff',2,6);
 	my ($domain,$cnum)=split(/\//,$thiscourse);
-        my %sections_count = ();
-        my $num_sections = 0;
+        my %sections_count;
         if (defined($env{'request.course.id'})) {
             if ($env{'request.course.id'} eq $domain.'_'.$cnum) {
-                $num_sections = &Apache::loncommon::get_sections($domain,$cnum,\%sections_count);
+                %sections_count = 
+		    &Apache::loncommon::get_sections($domain,$cnum);
             }
         }
 	foreach  ('st','ta','ep','ad','in','cc') {
@@ -1625,8 +1799,8 @@ sub course_level_table {
 <td>$area<br />Domain: $domain</td>
 ENDEXTENT
 	        if ($_ ne 'cc') {
-                    if ($num_sections > 0) {
-                        my $currsec = &course_sections($num_sections,\%sections_count,$protectedcourse.'_'.$_);
+                    if (%sections_count) {
+                        my $currsec = &course_sections(\%sections_count,$protectedcourse.'_'.$_);
                         $table .= 
                     '<td><table border="0" cellspacing="0" cellpadding="0">'.
                      '<tr><td valign="top">'.$lt{'exs'}.'<br />'.
@@ -1666,8 +1840,8 @@ ENDTIMEENTRY
 <td>$plrole</td>
 <td>$area</td>
 END
-                if ($num_sections > 0) {
-                    my $currsec = &course_sections($num_sections,\%sections_count,$customrole);
+                if (%sections_count) {
+                    my $currsec = &course_sections(\%sections_count,$customrole);
                     $table.=
                    '<td><table border="0" cellspacing="0" cellpadding="0">'.
                    '<tr><td valign="top">'.$lt{'exs'}.'<br />'.
@@ -1706,10 +1880,10 @@ ENDTABLE
 }
 
 sub course_sections {
-    my ($num_sections,$sections_count,$role) = @_;
+    my ($sections_count,$role) = @_;
     my $output = '';
     my @sections = (sort {$a <=> $b} keys %{$sections_count});
-    if ($num_sections == 1) {
+    if (scalar(@sections) == 1) {
         $output = '<select name="currsec_'.$role.'" >'."\n".
                   '  <option value="">Select</option>'."\n".
                   '  <option value="">No section</option>'."\n".
@@ -1717,7 +1891,7 @@ sub course_sections {
     } else {
         $output = '<select name="currsec_'.$role.'" ';
         my $multiple = 4;
-        if ($num_sections <4) { $multiple = $num_sections; }
+        if (scalar(@sections) < 4) { $multiple = scalar(@sections); }
         $output .= '"multiple" size="'.$multiple.'">'."\n";
         foreach (@sections) {
             $output .= '<option value="'.$_.'">'.$_."</option>\n";
@@ -1741,7 +1915,7 @@ sub course_level_dc {
                     'crl'  => "Course Level",
                     'crt'  => "Course Title",
                     'rol'  => "Role",
-                    'grs'  => "Group/Section",
+                    'grs'  => "Section",
                     'exs'  => "Existing sections",
                     'new'  => "Define new section", 
                     'sta'  => "Start",
@@ -1770,7 +1944,8 @@ sub course_level_dc {
                      ' <option value=""><--'.&mt('Pick course first').'</select></td>'.
                      '<td>&nbsp;&nbsp;</td>'.
                      '<td valign="top">&nbsp;<b>'.$lt{'new'}.'</b><br />'.
-                     '<input type="text" name="newsec" value="" /></td>'.
+                     '<input type="text" name="newsec" value="" />'.
+                     '<input type="hidden" name="groups" value="" /></td>'.
                      '</tr></table></td>';
     $otheritems .= <<ENDTIMEENTRY;
 <td><input type=hidden name="start" value=''>