--- loncom/interface/lonhelper.pm	2004/03/24 22:22:04	1.66
+++ loncom/interface/lonhelper.pm	2005/07/07 04:19:20	1.107
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # .helper XML handler to implement the LON-CAPA helper
 #
-# $Id: lonhelper.pm,v 1.66 2004/03/24 22:22:04 albertel Exp $
+# $Id: lonhelper.pm,v 1.107 2005/07/07 04:19:20 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -25,10 +25,6 @@
 #
 # http://www.lon-capa.org/
 #
-# (Page Handler
-#
-# (.helper handler
-#
 
 =pod
 
@@ -186,6 +182,7 @@ use Apache::Constants qw(:common);
 use Apache::File;
 use Apache::lonxml;
 use Apache::lonlocal;
+use Apache::lonnet;
 
 # Register all the tags with the helper, so the helper can 
 # push and pop them
@@ -255,7 +252,7 @@ sub real_handler {
     my $r = shift;
     my $uri = shift;
     if (!defined($uri)) { $uri = $r->uri(); }
-    $ENV{'request.uri'} = $uri;
+    $env{'request.uri'} = $uri;
     my $filename = '/home/httpd/html' . $uri;
     my $fh = Apache::File->new($filename);
     my $file;
@@ -263,21 +260,13 @@ sub real_handler {
 
 
     # Send header, don't cache this page
-    if ($r->header_only) {
-        if ($ENV{'browser.mathml'}) {
-            $r->content_type('text/xml; charset=UTF-8');
-        } else {
-            $r->content_type('text/html; charset=UTF-8');
-        }
-        $r->send_http_header;
-        return OK;
-    }
-    if ($ENV{'browser.mathml'}) {
-        $r->content_type('text/xml');
+    if ($env{'browser.mathml'}) {
+	&Apache::loncommon::content_type($r,'text/xml');
     } else {
-        $r->content_type('text/html');
+	&Apache::loncommon::content_type($r,'text/html');
     }
     $r->send_http_header;
+    return OK if $r->header_only;
     $r->rflush();
 
     # Discard result, we just want the objects that get created by the
@@ -286,7 +275,7 @@ sub real_handler {
 
     my $allowed = $helper->allowedCheck();
     if (!$allowed) {
-        $ENV{'user.error.msg'} = $ENV{'request.uri'}.':'.$helper->{REQUIRED_PRIV}.
+        $env{'user.error.msg'} = $env{'request.uri'}.':'.$helper->{REQUIRED_PRIV}.
             ":0:0:Permission denied to access this helper.";
         return HTTP_NOT_ACCEPTABLE;
     }
@@ -371,6 +360,7 @@ use HTML::Entities();
 use Apache::loncommon;
 use Apache::File;
 use Apache::lonlocal;
+use Apache::lonnet;
 
 sub new {
     my $proto = shift;
@@ -382,16 +372,16 @@ sub new {
     
     # If there is a state from the previous form, use that. If there is no
     # state, use the start state parameter.
-    if (defined $ENV{"form.CURRENT_STATE"})
+    if (defined $env{"form.CURRENT_STATE"})
     {
-	$self->{STATE} = $ENV{"form.CURRENT_STATE"};
+	$self->{STATE} = $env{"form.CURRENT_STATE"};
     }
     else
     {
 	$self->{STATE} = "START";
     }
 
-    $self->{TOKEN} = $ENV{'form.TOKEN'};
+    $self->{TOKEN} = $env{'form.TOKEN'};
     # If a token was passed, we load that in. Otherwise, we need to create a 
     # new storage file
     # Tried to use standard Tie'd hashes, but you can't seem to take a 
@@ -424,16 +414,16 @@ sub new {
             return undef;
         }
         # Must create the storage
-        $self->{TOKEN} = md5_hex($ENV{'user.name'} . $ENV{'user.domain'} .
+        $self->{TOKEN} = md5_hex($env{'user.name'} . $env{'user.domain'} .
                                  time() . rand());
         $self->{FILENAME} = $Apache::lonnet::tmpdir . md5_hex($self->{TOKEN});
     }
 
     # OK, we now have our persistent storage.
 
-    if (defined $ENV{"form.RETURN_PAGE"})
+    if (defined $env{"form.RETURN_PAGE"})
     {
-	$self->{RETURN_PAGE} = $ENV{"form.RETURN_PAGE"};
+	$self->{RETURN_PAGE} = $env{"form.RETURN_PAGE"};
     }
     else
     {
@@ -462,11 +452,11 @@ sub _saveVars {
     my $self = shift;
     my $result = "";
     $result .= '<input type="hidden" name="CURRENT_STATE" value="' .
-        HTML::Entities::encode($self->{STATE}) . "\" />\n";
+        HTML::Entities::encode($self->{STATE},'<>&"') . "\" />\n";
     $result .= '<input type="hidden" name="TOKEN" value="' .
         $self->{TOKEN} . "\" />\n";
     $result .= '<input type="hidden" name="RETURN_PAGE" value="' .
-        HTML::Entities::encode($self->{RETURN_PAGE}) . "\" />\n";
+        HTML::Entities::encode($self->{RETURN_PAGE},'<>&"') . "\" />\n";
 
     return $result;
 }
@@ -494,11 +484,11 @@ sub declareVar {
     }
 
     my $envname = 'form.' . $var . '.forminput';
-    if (defined($ENV{$envname})) {
-        if (ref($ENV{$envname})) {
-            $self->{VARS}->{$var} = join('|||', @{$ENV{$envname}});
+    if (defined($env{$envname})) {
+        if (ref($env{$envname})) {
+            $self->{VARS}->{$var} = join('|||', @{$env{$envname}});
         } else {
-            $self->{VARS}->{$var} = $ENV{$envname};
+            $self->{VARS}->{$var} = $env{$envname};
         }
     }
 }
@@ -510,7 +500,7 @@ sub allowedCheck {
         return 1;
     }
 
-    return Apache::lonnet::allowed($self->{REQUIRED_PRIV}, $ENV{'request.course.id'});
+    return Apache::lonnet::allowed($self->{REQUIRED_PRIV}, $env{'request.course.id'});
 }
 
 sub changeState {
@@ -532,7 +522,7 @@ sub process {
     # Phase 1: Post processing for state of previous screen (which is actually
     # the "current state" in terms of the helper variables), if it wasn't the 
     # beginning state.
-    if ($self->{STATE} ne "START" || $ENV{"form.SUBMIT"} eq &mt("Next ->")) {
+    if ($self->{STATE} ne "START" || $env{"form.SUBMIT"} eq &mt("Next ->")) {
 	my $prevState = $self->{STATES}{$self->{STATE}};
         $prevState->postprocess();
     }
@@ -583,7 +573,8 @@ sub display {
     }
 
     # Phase 4: Display.
-    my $stateTitle = &mt($state->title());
+    my $html=&Apache::lonxml::xmlbegin();
+    my $stateTitle=&mt($state->title());
     my $helperTitle = &mt($self->{TITLE});
     my $bodytag = &Apache::loncommon::bodytag($helperTitle,'','');
     my $previous = HTML::Entities::encode(&mt("<- Previous"), '<>&"');
@@ -592,9 +583,8 @@ sub display {
     my $loncapaHelper = &mt("LON-CAPA Helper:");
 
     $result .= <<HEADER;
-<html>
+$html
     <head>
-        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
         <title>$loncapaHelper: $helperTitle</title>
     </head>
     $bodytag
@@ -998,8 +988,8 @@ sub start_message {
         return '';
     }
 
-    $paramHash->{MESSAGE_TEXT} = &Apache::lonxml::get_all_text('/message',
-                                                               $parser);
+    $paramHash->{MESSAGE_TEXT} = &mtn(&Apache::lonxml::get_all_text('/message',
+                                                               $parser));
 
     if (defined($token->[2]{'nextstate'})) {
         $paramHash->{NEXTSTATE} = $token->[2]{'nextstate'};
@@ -1123,6 +1113,7 @@ no strict;
 @ISA = ("Apache::lonhelper::element");
 use strict;
 use Apache::lonlocal;
+use Apache::lonnet;
 
 BEGIN {
     &Apache::lonhelper::register('Apache::lonhelper::choices',
@@ -1169,11 +1160,11 @@ sub start_choice {
     }
 
     my $computer = $token->[2]{'computer'};
-    my $human = &Apache::lonxml::get_all_text('/choice',
-                                              $parser);
+    my $human = &mt(&Apache::lonxml::get_all_text('/choice',
+                                              $parser));
     my $nextstate = $token->[2]{'nextstate'};
     my $evalFlag = $token->[2]{'eval'};
-    push @{$paramHash->{CHOICES}}, [$human, $computer, $nextstate, 
+    push @{$paramHash->{CHOICES}}, [&mtn($human), $computer, $nextstate, 
                                     $evalFlag];
     return '';
 }
@@ -1182,6 +1173,13 @@ sub end_choice {
     return '';
 }
 
+{
+    # used to generate unique id attributes for <input> tags. 
+    # internal use only.
+    my $id = 0;
+    sub new_id { return $id++; }
+}
+
 sub render {
     my $self = shift;
     my $var = $self->{'variable'};
@@ -1206,10 +1204,13 @@ SCRIPT
     # Only print "select all" and "unselect all" if there are five or
     # more choices; fewer then that and it looks silly.
     if ($self->{'multichoice'} && scalar(@{$self->{CHOICES}}) > 4) {
+        my %lt=&Apache::lonlocal::texthash(
+			'sa'  => "Select All",
+		        'ua'  => "Unselect All");
         $buttons = <<BUTTONS;
 <br />
-<input type="button" onclick="checkall(true, '$var')" value="Select All" />
-<input type="button" onclick="checkall(false, '$var')" value="Unselect All" />
+<input type="button" onclick="checkall(true, '$var')" value="$lt{'sa'}" />
+<input type="button" onclick="checkall(false, '$var')" value="$lt{'ua'}" />
 <br />&nbsp;
 BUTTONS
     }
@@ -1261,14 +1262,16 @@ BUTTONS
     my $type = "radio";
     if ($self->{'multichoice'}) { $type = 'checkbox'; }
     foreach my $choice (@{$self->{CHOICES}}) {
+        my $id = &new_id();
         $result .= "<tr>\n<td width='20'>&nbsp;</td>\n";
         $result .= "<td valign='top'><input type='$type' name='$var.forminput'"
             . "' value='" . 
-            HTML::Entities::encode($choice->[1]) 
+            HTML::Entities::encode($choice->[1],"<>&\"'") 
             . "'";
         if ($checkedChoices{$choice->[1]}) {
             $result .= " checked ";
         }
+        $result .= qq{id="$id"};
         my $choiceLabel = $choice->[0];
         if ($choice->[4]) {  # if we need to evaluate this choice
             $choiceLabel = "sub { my $helper = shift; my $state = shift;" .
@@ -1276,7 +1279,8 @@ BUTTONS
             $choiceLabel = eval($choiceLabel);
             $choiceLabel = &$choiceLabel($helper, $self);
         }
-        $result .= "/></td><td> " . &mtn($choiceLabel) . "</td></tr>\n";
+        $result .= "/></td><td> ".qq{<label for="$id">}.
+            $choiceLabel. "</label></td></tr>\n";
     }
     $result .= "</table>\n\n\n";
     $result .= $buttons;
@@ -1288,7 +1292,7 @@ BUTTONS
 # given, switch to it
 sub postprocess {
     my $self = shift;
-    my $chosenValue = $ENV{'form.' . $self->{'variable'} . '.forminput'};
+    my $chosenValue = $env{'form.' . $self->{'variable'} . '.forminput'};
 
     if (!defined($chosenValue) && !$self->{'allowempty'}) {
         $self->{ERROR_MSG} = 
@@ -1342,6 +1346,7 @@ no strict;
 @ISA = ("Apache::lonhelper::element");
 use strict;
 use Apache::lonlocal;
+use Apache::lonnet;
 
 BEGIN {
     &Apache::lonhelper::register('Apache::lonhelper::dropdown',
@@ -1419,7 +1424,7 @@ sub render {
     $result .= "<select name='${var}.forminput'>\n";
     foreach my $choice (@{$self->{CHOICES}}) {
         $result .= "<option value='" . 
-            HTML::Entities::encode($choice->[1]) 
+            HTML::Entities::encode($choice->[1],"<>&\"'") 
             . "'";
         if ($checkedChoices{$choice->[1]}) {
             $result .= " selected";
@@ -1442,7 +1447,7 @@ sub render {
 # given, switch to it
 sub postprocess {
     my $self = shift;
-    my $chosenValue = $ENV{'form.' . $self->{'variable'} . '.forminput'};
+    my $chosenValue = $env{'form.' . $self->{'variable'} . '.forminput'};
 
     if (!defined($chosenValue) && !$self->{'allowempty'}) {
         $self->{ERROR_MSG} = "You must choose one or more choices to" .
@@ -1501,7 +1506,7 @@ no strict;
 @ISA = ("Apache::lonhelper::element");
 use strict;
 use Apache::lonlocal; # A localization nightmare
-
+use Apache::lonnet;
 use Time::localtime;
 
 BEGIN {
@@ -1645,14 +1650,14 @@ sub render {
 sub postprocess {
     my $self = shift;
     my $var = $self->{'variable'};
-    my $month = $ENV{'form.' . $var . 'month'}; 
-    my $day = $ENV{'form.' . $var . 'day'}; 
-    my $year = $ENV{'form.' . $var . 'year'}; 
+    my $month = $env{'form.' . $var . 'month'}; 
+    my $day = $env{'form.' . $var . 'day'}; 
+    my $year = $env{'form.' . $var . 'year'}; 
     my $min = 0; 
     my $hour = 0;
     if ($self->{'hoursminutes'}) {
-        $min = $ENV{'form.' . $var . 'minute'};
-        $hour = $ENV{'form.' . $var . 'hour'};
+        $min = $env{'form.' . $var . 'minute'};
+        $hour = $env{'form.' . $var . 'hour'};
     }
 
     my $chosenDate;
@@ -1710,7 +1715,9 @@ to false. The "suppressEmptySequences" a
 suppressEmptySequences argument to the render routine, which will cause
 folders that have all of their contained resources filtered out to also
 be filtered out. The 'addstatus' attribute, if true, will add the icon
-and long status display columns to the display.
+and long status display columns to the display. The 'addparts'
+attribute will add in a part selector beside problems that have more
+than 1 part.
 
 =head3 SUB-TAGS
 
@@ -1750,12 +1757,13 @@ and long status display columns to the d
 no strict;
 @ISA = ("Apache::lonhelper::element");
 use strict;
+use Apache::lonnet;
 
 BEGIN {
     &Apache::lonhelper::register('Apache::lonhelper::resource',
                               ('resource', 'filterfunc', 
                                'choicefunc', 'valuefunc',
-                               'mapurl'));
+                               'mapurl','option'));
 }
 
 sub new {
@@ -1777,6 +1785,10 @@ sub start_resource {
     $paramHash->{'suppressEmptySequences'} = $token->[2]{'suppressEmptySequences'};
     $paramHash->{'toponly'} = $token->[2]{'toponly'};
     $paramHash->{'addstatus'} = $token->[2]{'addstatus'};
+    $paramHash->{'addparts'} = $token->[2]{'addparts'};
+    if ($paramHash->{'addparts'}) {
+	$helper->declareVar($paramHash->{'variable'}.'_part');
+    }
     $paramHash->{'closeallpages'} = $token->[2]{'closeallpages'};
     return '';
 }
@@ -1860,6 +1872,42 @@ sub start_mapurl {
 
 sub end_mapurl { return ''; }
 
+
+sub start_option {
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+    if (!defined($paramHash->{OPTION_TEXTS})) {
+	$paramHash->{OPTION_TEXTS} = [ ];
+	$paramHash->{OPTION_VARS}  = [ ];
+
+    }
+    # OPTION_TEXTS is a list of the text attribute
+    #               values used to create column headings.
+    # OPTION_VARS is a list of the variable names, used to create the checkbox
+    #             inputs.
+    #  We're ok with empty elements. as place holders
+    # Although the 'variable' element should really exist.
+    #
+
+    my $option_texts  = $paramHash->{OPTION_TEXTS};
+    my $option_vars   = $paramHash->{OPTION_VARS};
+    push(@$option_texts,  $token->[2]{'text'});
+    push(@$option_vars,   $token->[2]{'variable'});
+
+    #  Need to create and declare the option variables as well to make them
+    # persistent.
+    #
+    my $varname = $token->[2]{'variable'};
+    $helper->declareVar($varname);
+
+
+    return '';
+}
+
+sub end_option {
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+    return '';
+}
+
 # A note, in case I don't get to this before I leave.
 # If someone complains about the "Back" button returning them
 # to the previous folder state, instead of returning them to
@@ -1893,10 +1941,14 @@ sub render {
     }
 </script>
 SCRIPT
+        my %lt=&Apache::lonlocal::texthash(
+			'sar'  => "Select All Resources",
+		        'uar'  => "Unselect All Resources");
+
         $buttons = <<BUTTONS;
 <br /> &nbsp;
-<input type="button" onclick="checkall(true, '$var')" value="Select All Resources" />
-<input type="button" onclick="checkall(false, '$var')" value="Unselect All Resources" />
+<input type="button" onclick="checkall(true, '$var')" value="$lt{'sar'}" />
+<input type="button" onclick="checkall(false, '$var')" value="$lt{'uar'}" />
 <br /> &nbsp;
 BUTTONS
     }
@@ -1907,10 +1959,14 @@ BUTTONS
 
     $result .= $buttons;
 
-    my $filterFunc = $self->{FILTER_FUNC};
-    my $choiceFunc = $self->{CHOICE_FUNC};
-    my $valueFunc = $self->{VALUE_FUNC};
-    my $multichoice = $self->{'multichoice'};
+    my $filterFunc     = $self->{FILTER_FUNC};
+    my $choiceFunc     = $self->{CHOICE_FUNC};
+    my $valueFunc      = $self->{VALUE_FUNC};
+    my $multichoice    = $self->{'multichoice'};
+    my $option_vars    = $self->{OPTION_VARS};
+    my $option_texts   = $self->{OPTION_TEXTS};
+    my $addparts       = $self->{'addparts'};
+    my $headings_done  = 0;
 
     # Evaluate the map url as needed
     my $mapUrl;
@@ -1922,21 +1978,54 @@ BUTTONS
 	$mapUrl = $self->{MAP_URL};
     }
 
+
     # Create the composite function that renders the column on the nav map
     # have to admit any language that lets me do this can't be all bad
     #  - Jeremy (Pythonista) ;-)
     my $checked = 0;
     my $renderColFunc = sub {
         my ($resource, $part, $params) = @_;
+	my $result = "";
+
+	if(!$headings_done) {
+	    if ($option_texts) {
+		foreach my $text (@$option_texts) {
+		    $result .= "<th>$text</th>";
+		}
+	    }
+	    $result .= "<th>Select</th>";
+	    $result .= "</tr><tr>"; # Close off the extra row and start a new one.
+	    $headings_done = 1;
+	}
 
         my $inputType;
         if ($multichoice) { $inputType = 'checkbox'; }
         else {$inputType = 'radio'; }
 
         if (!&$choiceFunc($resource)) {
-            return '<td>&nbsp;</td>';
+	    $result .= '<td>&nbsp;</td>';
+            return $result;
         } else {
-            my $col = "<td><input type='$inputType' name='${var}.forminput' ";
+	    my $col = "";
+	    my $raw_name = &$valueFunc($resource);
+	    my $resource_name =   
+                   HTML::Entities::encode($raw_name,"<>&\"'");
+	    if($option_vars) {
+		foreach my $option_var (@$option_vars) {
+		    my $var_value = "\|\|\|" . $helper->{VARS}->{$option_var} . 
+			"\|\|\|";
+		    my $checked ="";
+		    if($var_value =~ /\Q|||$raw_name|||\E/) {
+			$checked = "checked";
+		    }
+		    $col .= 
+                        "<td align='center'><input type='checkbox' name ='$option_var".
+			".forminput' value='".
+			$resource_name . "' $checked /> </td>";
+		}
+	    }
+
+            $col .= "<td align='center'><input type='$inputType' name='${var}.forminput' ";
             if (!$checked && !$multichoice) {
                 $col .= "checked ";
                 $checked = 1;
@@ -1945,15 +2034,52 @@ BUTTONS
 		$col .= "checked ";
 		$checked = 1;
 	    }
-            $col .= "value='" . 
-                HTML::Entities::encode(&$valueFunc($resource)) 
-                . "' /></td>";
-            return $col;
+            $col .= "value='" . $resource_name  . "' /></td>";
+
+            return $result.$col;
         }
     };
+    my $renderPartsFunc = sub {
+        my ($resource, $part, $params) = @_;
+	my $col= "<td>";
+	my $id=$resource->{ID};
+	my $resource_name =   
+	    &HTML::Entities::encode(&$valueFunc($resource),"<>&\"'");
+	if ($addparts && (scalar(@{$resource->parts}) > 1)) {
+	    $col .= "<select onclick=\"javascript:updateRadio(this.form,'${var}.forminput','$resource_name');updateHidden(this.form,'$id','${var}');\" name='part_$id.forminput'>\n";
+	    $col .= "<option value=\"$part\">All Parts</option>\n";
+	    foreach my $part (@{$resource->parts}) {
+		$col .= "<option value=\"$part\">Part: $part</option>\n";
+	    }
+	    $col .= "</select>";
+	}
+	$col .= "</td>";
+    };
+    $result.=(<<RADIO);
+<script type="text/javascript">
+    function updateRadio(form,name,value) {
+	var radiobutton=form[name];
+	for (var i=0; i<radiobutton.length; i++) {
+	    if (radiobutton[i].value == value) {
+		radiobutton[i].checked = true;
+		break;
+	    }
+	}
+    }
+    function updateHidden(form,id,name) {
+	var select=form['part_'+id+'.forminput'];
+	var hidden=form[name+'_part.forminput'];
+	var which=select.selectedIndex;
+	hidden.value=select.options[which].value;
+    }
+</script>
+<input type="hidden" name="${var}_part.forminput" />
 
-    $ENV{'form.condition'} = !$self->{'toponly'};
-    my $cols = [$renderColFunc, Apache::lonnavmaps::resource()];
+RADIO
+    $env{'form.condition'} = !$self->{'toponly'};
+    my $cols = [$renderColFunc];
+    if ($self->{'addparts'}) { push(@$cols, $renderPartsFunc); }
+    push(@$cols, Apache::lonnavmaps::resource());
     if ($self->{'addstatus'}) {
 	push @$cols, (Apache::lonnavmaps::part_status_summary());
 	
@@ -2030,7 +2156,7 @@ no strict;
 @ISA = ("Apache::lonhelper::element");
 use strict;
 use Apache::lonlocal;
-
+use Apache::lonnet;
 
 BEGIN {
     &Apache::lonhelper::register('Apache::lonhelper::student',
@@ -2053,7 +2179,7 @@ sub start_student {
     $helper->declareVar($paramHash->{'variable'});
     $paramHash->{'multichoice'} = $token->[2]{'multichoice'};
     $paramHash->{'coursepersonnel'} = $token->[2]{'coursepersonnel'};
-    $paramHash->{'sctiveonly'} = $token->[2]{'activeonly'};
+    $paramHash->{'activeonly'} = $token->[2]{'activeonly'};
     if (defined($token->[2]{'nextstate'})) {
         $paramHash->{NEXTSTATE} = $token->[2]{'nextstate'};
     }
@@ -2090,7 +2216,9 @@ sub render {
 	for (i=0; i<document.forms.helpform.elements.length; i++) {
 	    comp = document.forms.helpform.elements.chksec.value;
             if (document.forms.helpform.elements[i].value.indexOf(':'+comp+':') != -1) {
-                document.forms.helpform.elements[i].checked=value;
+		if (document.forms.helpform.elements[i].value.indexOf(':Active') != -1) {
+		    document.forms.helpform.elements[i].checked=value;
+		}
             }
         }
     }
@@ -2098,22 +2226,48 @@ sub render {
 	for (i=0; i<document.forms.helpform.elements.length; i++) {
             if (document.forms.helpform.elements[i].value.indexOf(':Active') != -1) {
                 document.forms.helpform.elements[i].checked=true;
-            }
+            } 
+        }
+    }
+    function uncheckexpired() {
+	for (i=0; i<document.forms.helpform.elements.length; i++) {
+            if (document.forms.helpform.elements[i].value.indexOf(':Expired') != -1) {
+                document.forms.helpform.elements[i].checked=false;
+            } 
         }
     }
 </script>
 SCRIPT
 
-        my $selectAllStudents = &mt('Select All Students'); 
-	my $unselectAllStudents = &mt('Unselect All Students');
+        my %lt=&Apache::lonlocal::texthash(
+                    'ocs'  => "Select Only Current Students",
+                    'ues'  => "Unselect Expired Students",
+                    'sas'  => "Select All Students",
+                    'uas'  => "Unselect All Students",
+                    'sfsg' => "Select Current Students for Section/Group",
+		    'ufsg' => "Unselect for Section/Group");
+ 
         $buttons = <<BUTTONS;
 <br />
-<input type="button" onclick="checkactive()" value="Select Only Current Students" />
-<input type="button" onclick="checkall(true, '$var')" value="$selectAllStudents" />
-<input type="button" onclick="checkall(false, '$var')" value="$unselectAllStudents" />
-<input type="button" onclick="checksec(true)" value="Select for Section/Group">
-<input type="text" size="5" name="chksec">&nbsp;
-<input type="button" onclick="checksec(false)" value="Unselect for Section/Group">
+<table>
+  <tr>
+  
+    <td><input type="button" onclick="checkactive()" value="$lt{'ocs'}" /></td>
+    <td><input type="button" onclick="uncheckexpired()" value="$lt{'ues'}" /><br /></td>
+  </tr>
+  <tr>
+     <td><input type="button" onclick="checkall(true, '$var')" value="$lt{'sas'}" /></td>
+     <td> <input type="button" onclick="checkall(false, '$var')" value="$lt{'uas'}" /><br /></td>
+  </tr>
+  <tr>
+      <td><input type="button" onclick="checksec(true)" value="$lt{'sfsg'}"></td>
+      <td><input type="text" size="5" name="chksec">&nbsp;</td>
+  </tr>
+  <tr>
+      <td><input type="button" onclick="checksec(false)" value="$lt{'ufsg'}"></td>
+      <td></td>
+  </tr>
+</table>
 <br />
 BUTTONS
     }
@@ -2172,15 +2326,15 @@ BUTTONS
 	}
     }
 
-    my $name = &mt($self->{'coursepersonnel'} ? 'Name' : 'Student Name');
+    my $name = $self->{'coursepersonnel'} ? &mt('Name') : &mt('Student Name');
     my $type = 'radio';
     if ($self->{'multichoice'}) { $type = 'checkbox'; }
     $result .= "<table cellspacing='2' cellpadding='2' border='0'>\n";
     $result .= "<tr><td></td><td align='center'><b>$name</b></td>".
         "<td align='center'><b>" . &mt('Section') . "</b></td>" . 
-	"<td align='center'><b>Status</b></td>" . 
-	"<td align='center'><b>" . &mt("Role") . "</b></td></tr>" .
-	"<td align='center'><b>Username:Domain</b></td></tr>";
+	"<td align='center'><b>".&mt('Status')."</b></td>" . 
+	"<td align='center'><b>" . &mt("Role") . "</b></td>" .
+	"<td align='center'><b>".&mt('Username').":".&mt('Domain')."</b></td></tr>";
 
     my $checked = 0;
     for my $choice (@$choices) {
@@ -2192,17 +2346,20 @@ BUTTONS
             $checked = 1;
         }
         $result .=
-            " value='" . HTML::Entities::encode($choice->[0] . ':' . $choice->[2] . ':' . $choice->[1] . ':' . $choice->[3])
+            " value='" . HTML::Entities::encode($choice->[0] . ':' 
+						.$choice->[2] . ':' 
+						.$choice->[1] . ':' 
+						.$choice->[3], "<>&\"'")
             . "' /></td><td>"
-            . HTML::Entities::encode($choice->[1])
+            . HTML::Entities::encode($choice->[1],'<>&"')
             . "</td><td align='center'>" 
-            . HTML::Entities::encode($choice->[2])
+            . HTML::Entities::encode($choice->[2],'<>&"')
             . "</td>\n<td>" 
-	    . HTML::Entities::encode($choice->[3])
+	    . HTML::Entities::encode($choice->[3],'<>&"')
             . "</td>\n<td>" 
-	    . HTML::Entities::encode($choice->[4])
+	    . HTML::Entities::encode($choice->[4],'<>&"')
             . "</td>\n<td>" 
-	    . HTML::Entities::encode($choice->[0])
+	    . HTML::Entities::encode($choice->[0],'<>&"')
 	    . "</td></tr>\n";
     }
 
@@ -2215,7 +2372,7 @@ BUTTONS
 sub postprocess {
     my $self = shift;
 
-    my $result = $ENV{'form.' . $self->{'variable'} . '.forminput'};
+    my $result = $env{'form.' . $self->{'variable'} . '.forminput'};
     if (!$result) {
         $self->{ERROR_MSG} = 
 	    &mt('You must choose at least one student to continue.');
@@ -2285,7 +2442,7 @@ no strict;
 @ISA = ("Apache::lonhelper::element");
 use strict;
 use Apache::lonlocal;
-
+use Apache::lonnet;
 use Apache::lonpubdir; # for getTitleString
 
 BEGIN {
@@ -2360,6 +2517,13 @@ sub start_filefilter {
 
 sub end_filefilter { return ''; }
 
+{ 
+    # used to generate unique id attributes for <input> tags. 
+    # internal use only.
+    my $id=0;
+    sub new_id { return $id++;}
+}
+
 sub render {
     my $self = shift;
     my $result = '';
@@ -2403,20 +2567,22 @@ sub render {
     }
 </script>
 SCRIPT
-        my $selectAllFiles = &mt("Select All Files");
-	my $unselectAllFiles = &mt("Unselect All Files");
-        $buttons = <<BUTTONS;
+       my %lt=&Apache::lonlocal::texthash(
+			'saf'  => "Select All Files",
+		        'uaf'  => "Unselect All Files");
+       $buttons = <<BUTTONS;
 <br /> &nbsp;
-<input type="button" onclick="checkall(true, '$var')" value="$selectAllFiles" />
-<input type="button" onclick="checkall(false, '$var')" value="$unselectAllFiles" />
+<input type="button" onclick="checkall(true, '$var')" value="$lt{'saf'}" />
+<input type="button" onclick="checkall(false, '$var')" value="$lt{'uaf'}" />
 BUTTONS
 
-        my $selectAllPublished = &mt("Select All Published");
-	my $unselectAllPublished= &mt("UnselectAllPublished");
+       %lt=&Apache::lonlocal::texthash(
+			'sap'  => "Select All Published",
+		        'uap'  => "Unselect All Published");
         if ($helper->{VARS}->{'construction'}) {
-            $buttons .= <<BUTTONS;
-<input type="button" onclick="checkallclass(true, 'Published')" value="$selectAllPublished" />
-<input type="button" onclick="checkallclass(false, 'Published')" value="$unselectAllPublished" />
+       $buttons .= <<BUTTONS;
+<input type="button" onclick="checkallclass(true, 'Published')" value="$lt{'sap'}" />
+<input type="button" onclick="checkallclass(false, 'Published')" value="$lt{'uap'}" />
 <br /> &nbsp;
 BUTTONS
        }
@@ -2440,11 +2606,11 @@ BUTTONS
         @fileList = &Apache::lonnet::dirlist($subdir, $domain, $user, '');
     } else {
         # local library server resource space
-        @fileList = &Apache::lonnet::dirlist($subdir, $ENV{'user.domain'}, $ENV{'user.name'}, '');
+        @fileList = &Apache::lonnet::dirlist($subdir, $env{'user.domain'}, $env{'user.name'}, '');
     }
 
     # Sort the fileList into order
-    @fileList = sort @fileList;
+    @fileList = sort {lc($a) cmp lc($b)} @fileList;
 
     $result .= $buttons;
 
@@ -2496,14 +2662,16 @@ BUTTONS
             if ($status eq 'Published' && $helper->{VARS}->{'construction'}) {
                 $onclick = 'onclick="a=1" ';
             }
+            my $id = &new_id();
             $result .= '<tr><td align="right"' . " bgcolor='$color'>" .
                 "<input $onclick type='$type' name='" . $var
-            . ".forminput' value='" . HTML::Entities::encode($fileName) .
+            . ".forminput' ".qq{id="$id"}." value='" . HTML::Entities::encode($fileName,"<>&\"'").
                 "'";
             if (!$self->{'multichoice'} && $choices == 0) {
                 $result .= ' checked';
             }
-            $result .= "/></td><td bgcolor='$color'>" . $file . "</td>" .
+            $result .= "/></td><td bgcolor='$color'>".
+                qq{<label for="$id">}. $file . "</label></td>" .
                 "<td bgcolor='$color'>$title</td>" .
                 "<td bgcolor='$color'>$status</td>" . "</tr>\n";
             $choices++;
@@ -2531,10 +2699,14 @@ sub fileState {
     my $constructionSpaceDir = shift;
     my $file = shift;
     
+    my ($uname,$udom)=($env{'user.name'},$env{'user.domain'});
+    if ($env{'request.role'}=~/^ca\./) {
+	(undef,$udom,$uname)=split(/\//,$env{'request.role'});
+    }
     my $docroot = $Apache::lonnet::perlvar{'lonDocRoot'};
     my $subdirpart = $constructionSpaceDir;
-    $subdirpart =~ s/^\/home\/$ENV{'user.name'}\/public_html//;
-    my $resdir = $docroot . '/res/' . $ENV{'user.domain'} . '/' . $ENV{'user.name'} .
+    $subdirpart =~ s/^\/home\/$uname\/public_html//;
+    my $resdir = $docroot . '/res/' . $udom . '/' . $uname .
         $subdirpart;
 
     my @constructionSpaceFileStat = stat($constructionSpaceDir . '/' . $file);
@@ -2554,7 +2726,7 @@ sub fileState {
 
 sub postprocess {
     my $self = shift;
-    my $result = $ENV{'form.' . $self->{'variable'} . '.forminput'};
+    my $result = $env{'form.' . $self->{'variable'} . '.forminput'};
     if (!$result) {
         $self->{ERROR_MSG} = 'You must choose at least one file '.
             'to continue.';
@@ -2663,6 +2835,7 @@ string honors the validation function, i
 no strict;
 @ISA = ("Apache::lonhelper::element");
 use strict;
+use Apache::lonlocal;
 
 BEGIN {
     &Apache::lonhelper::register('Apache::lonhelper::string',
@@ -2706,7 +2879,7 @@ sub render {
     my $result = '';
 
     if (defined $self->{ERROR_MSG}) {
-        $result .= '<br /><font color="#FF0000">' . $self->{ERROR_MSG} . '</font><br /><br />';
+        $result .= '<p><font color="#FF0000">' . $self->{ERROR_MSG} . '</font></p>';
     }
 
     $result .= '<input type="string" name="' . $self->{'variable'} . '.forminput"';
@@ -2760,7 +2933,7 @@ package Apache::lonhelper::general;
 =head2 General-purpose tag: <exec>X<exec, helper tag>
 
 The contents of the exec tag are executed as Perl code, B<not> inside a 
-safe space, so the full range of $ENV and such is available. The code
+safe space, so the full range of $env and such is available. The code
 will be executed as a subroutine wrapped with the following code:
 
 "sub { my $helper = shift; my $state = shift;" and
@@ -2781,6 +2954,9 @@ be able to call methods on it.
 
 =cut
 
+use Apache::lonlocal;
+use Apache::lonnet;
+
 BEGIN {
     &Apache::lonhelper::register('Apache::lonhelper::general',
                                  'exec', 'condition', 'clause',
@@ -2902,12 +3078,16 @@ will make a "Finish Helper" button that
 which is useful for the Course Initialization helper so the users never see
 the old values taking effect.
 
+If the parameter "restartCourse" is not true a 'Finish' Button will be
+presented that takes the user back to whatever was defined as <exitpage>
+
 =cut
 
 no strict;
 @ISA = ("Apache::lonhelper::element");
 use strict;
 use Apache::lonlocal;
+use Apache::lonnet;
 BEGIN {
     &Apache::lonhelper::register('Apache::lonhelper::final',
                                  ('final', 'exitpage'));
@@ -2999,35 +3179,38 @@ sub render {
 	$result .= '</ul>';
     }
 
+    my $actionURL = $self->{EXIT_PAGE};
+    my $targetURL = '';
+    my $finish=&mt('Finish');
     if ($self->{'restartCourse'}) {
-	my $targetURL = '/adm/menu';
-	if ($ENV{'course.'.$ENV{'request.course.id'}.'.url'}=~/^uploaded/) {
+	$actionURL = '/adm/roles';
+	$targetURL = '/adm/menu';
+	if ($env{'course.'.$env{'request.course.id'}.'.url'}=~/^uploaded/) {
 	    $targetURL = '/adm/coursedocs';
 	} else {
 	    $targetURL = '/adm/navmaps';
 	}
-	if ($ENV{'course.'.$ENV{'request.course.id'}.'.clonedfrom'}) {
+	if ($env{'course.'.$env{'request.course.id'}.'.clonedfrom'}) {
 	    $targetURL = '/adm/parmset?overview=1';
 	}
-	my $previous = HTML::Entities::encode(&mt("<- Previous"), '<>&"');
-	my $next = HTML::Entities::encode(&mt("Next ->"), '<>&"');
-        $result .= "<center>\n" .
-            "<form action='/adm/roles' method='post' target='loncapaclient'>\n" .
-            "<input type='button' onclick='history.go(-1)' value='$previous' />" .
-            "<input type='hidden' name='orgurl' value='$targetURL' />" .
-            "<input type='hidden' name='selectrole' value='1' />\n" .
-            "<input type='hidden' name='" . $ENV{'request.role'} . 
-            "' value='1' />\n<input type='submit' value='" .
-	    &mt('Finish Course Initialization') . "' />\n" .
-            "</form></center>";
+	my $finish=&mt('Finish Course Initialization');
     }
+    my $previous = HTML::Entities::encode(&mt("<- Previous"), '<>&"');
+    my $next = HTML::Entities::encode(&mt("Next ->"), '<>&"');
+    $result .= "<center>\n" .
+	"<form action='".$actionURL."' method='post' target='loncapaclient'>\n" .
+	"<input type='button' onclick='history.go(-1)' value='$previous' />" .
+	"<input type='hidden' name='orgurl' value='$targetURL' />" .
+	"<input type='hidden' name='selectrole' value='1' />\n" .
+	"<input type='hidden' name='" . $env{'request.role'} . 
+	"' value='1' />\n<input type='submit' value='" . $finish . "' />\n" .
+	"</form></center>";
 
     return $result;
 }
 
 sub overrideForm {
-    my $self = shift;
-    return $self->{'restartCourse'};
+    return 1;
 }
 
 1;
@@ -3042,6 +3225,8 @@ package Apache::lonhelper::parmwizfinal;
 no strict;
 @ISA = ('Apache::lonhelper::element');
 use strict;
+use Apache::lonlocal;
+use Apache::lonnet;
 
 BEGIN {
     &Apache::lonhelper::register('Apache::lonhelper::parmwizfinal',
@@ -3083,6 +3268,11 @@ sub render {
                         'answer_date' => "0_answerdate",
 			'tries' => '0_maxtries',
 			'weight' => '0_weight' );
+    my %realParmName = ('open_date' => "opendate",
+                        'due_date' => "duedate",
+                        'answer_date' => "answerdate",
+			'tries' => 'maxtries',
+			'weight' => 'weight' );
     
     my $affectedResourceId = "";
     my $parm_name = $parmTypeHash{$vars->{ACTION_TYPE}};
@@ -3090,11 +3280,17 @@ sub render {
     my $resourceString;
     my $symb;
     my $paramlevel;
-
+    
     # Print the granularity, depending on the action
     if ($vars->{GRANULARITY} eq 'whole_course') {
-        $resourceString .= '<li>for <b>all resources in the course</b></li>';
-        $level = 9; # general course, see lonparmset.pm perldoc
+        $resourceString .= '<li>'.&mt('for <b>all resources in the course</b>').'</li>';
+	if ($vars->{TARGETS} eq 'course') {
+	    $level = 11; # general course, see lonparmset.pm perldoc
+	} elsif ($vars->{TARGETS} eq 'section') {
+	    $level = 6;
+	} else {
+	    $level = 3;
+	}
         $affectedResourceId = "0.0";
         $symb = 'a';
         $paramlevel = 'general';
@@ -3103,33 +3299,65 @@ sub render {
         my $res = $navmap->getByMapPc($vars->{RESOURCE_ID});
         my $title = $res->compTitle();
         $symb = $res->symb();
-        $navmap->untieHashes();
-        $resourceString .= "<li>for the map named <b>$title</b></li>";
-        $level = 8;
+        $resourceString .= '<li>'.&mt('for the map named [_1]',"<b>$title</b>").'</li>';
+	if ($vars->{TARGETS} eq 'course') {
+	    $level = 10; # general course, see lonparmset.pm perldoc
+	} elsif ($vars->{TARGETS} eq 'section') {
+	    $level = 5;
+	} else {
+	    $level = 2;
+	}
         $affectedResourceId = $vars->{RESOURCE_ID};
         $paramlevel = 'map';
     } else {
         my $navmap = Apache::lonnavmaps::navmap->new();
         my $res = $navmap->getById($vars->{RESOURCE_ID});
+        my $part = $vars->{RESOURCE_ID_part};
+	if ($part ne 'All Parts' && $part) { $parm_name=~s/^0/$part/; } else { $part=&mt('All Parts'); }
         $symb = $res->symb();
         my $title = $res->compTitle();
-        $navmap->untieHashes();
-        $resourceString .= "<li>for the resource named <b>$title</b></li>";
-        $level = 7;
+        $resourceString .= '<li>'.&mt('for the resource named [_1] part [_2]',"<b>$title</b>","<b>$part</b>").'</li>';
+	if ($vars->{TARGETS} eq 'course') {
+	    $level = 7; # general course, see lonparmset.pm perldoc
+	} elsif ($vars->{TARGETS} eq 'section') {
+	    $level = 4;
+	} else {
+	    $level = 1;
+	}
         $affectedResourceId = $vars->{RESOURCE_ID};
         $paramlevel = 'full';
     }
 
-    my $result = "<form name='helpform' method='get' action='/adm/parmset#$affectedResourceId&$parm_name&$level'>\n";
-    $result .= '<p>Confirm that this information is correct, then click &quot;Finish Helper&quot; to complete setting the parameter.<ul>';
+    my $result = "<form name='helpform' method='POST' action='/adm/parmset#$affectedResourceId&$parm_name&$level'>\n";
+    $result .= "<input type='hidden' name='action' value='settable' />\n";
+    $result .= "<input type='hidden' name='dis' value='helper' />\n";
+    $result .= "<input type='hidden' name='pscat' value='".
+	$realParmName{$vars->{ACTION_TYPE}}."' />\n";
+    if ($vars->{GRANULARITY} eq 'resource') {
+	$result .= "<input type='hidden' name='symb' value='".
+	    HTML::Entities::encode($symb,"'<>&\"") . "' />\n";
+    }
+    my $part = $vars->{RESOURCE_ID_part};
+    if ($part eq 'All Parts' || !$part) { $part=0; }
+    $result .= "<input type='hidden' name='psprt' value='".
+	HTML::Entities::encode($part,"'<>&\"") . "' />\n";
+
+    $result .= '<p>'.&mt('Confirm that this information is correct, then click &quot;Finish Helper&quot; to complete setting the parameter.').'<ul>';
     
     # Print the type of manipulation:
-    $result .= '<li>Setting the <b>' . $dateTypeHash{$vars->{ACTION_TYPE}} . '</b>';
+    my $extra;
     if ($vars->{ACTION_TYPE} eq 'tries') {
-	$result .= ' to <b>' . $vars->{TRIES} . '</b>';
+	$extra =  $vars->{TRIES};
     }
     if ($vars->{ACTION_TYPE} eq 'weight') {
-	$result .= ' to <b>' . $vars->{WEIGHT} . '</b>';
+	$extra =  $vars->{WEIGHT};
+    }
+    $result .= "<li>";
+    my $what = &mt($dateTypeHash{$vars->{ACTION_TYPE}});
+    if ($extra) {
+	$result .= &mt('Setting the [_1] to [_2]',"<b>$what</b>",$extra);
+    } else {
+	$result .= &mt('Setting the [_1]',"<b>$what</b>");
     }
     $result .= "</li>\n";
     if ($vars->{ACTION_TYPE} eq 'due_date' || 
@@ -3151,6 +3379,8 @@ sub render {
     } elsif ($vars->{ACTION_TYPE} eq 'tries') {
 	$result .= "<input type='hidden' name='pres_value' " .
 	    "value='" . $vars->{TRIES} . "' />\n";
+        $result .= "<input type='hidden' name='pres_type' " .
+            "value='int_pos' />\n";
     } elsif ($vars->{ACTION_TYPE} eq 'weight') {
 	$result .= "<input type='hidden' name='pres_value' " .
 	    "value='" . $vars->{WEIGHT} . "' />\n";
@@ -3160,34 +3390,30 @@ sub render {
     
     # Print targets
     if ($vars->{TARGETS} eq 'course') {
-        $result .= '<li>for <b>all students in course</b></li>';
+        $result .= '<li>'.&mt('for <b>all students in course</b>').'</li>';
     } elsif ($vars->{TARGETS} eq 'section') {
         my $section = $vars->{SECTION_NAME};
-        $result .= "<li>for section <b>$section</b></li>";
-        $level -= 3;
-        $result .= "<input type='hidden' name='csec' value='" .
-            HTML::Entities::encode($section) . "' />\n";
+        $result .= '<li>'.&mt('for section [_1]',"<b>$section</b>").'</li>';
+	$result .= "<input type='hidden' name='csec' value='" .
+            HTML::Entities::encode($section,"'<>&\"") . "' />\n";
     } else {
         # FIXME: This is probably wasteful! Store the name!
         my $classlist = Apache::loncoursedata::get_classlist();
         my $username = $vars->{USER_NAME};
         # Chop off everything after the last colon (section)
-        $username = substr($username, 0, rindex($username, ':'));
-        my $name = $classlist->{$username}->[6];
-        $result .= "<li>for <b>$name</b></li>";
-        $level -= 6;
-        my ($uname, $udom) = split /:/, $vars->{USER_NAME};
+	my ($uname,$udom)=split(':',$username);
+        my $name = $classlist->{$uname.':'.$udom}->[6];
+        $result .= '<li>'.&mt('for [_1]',"<b>$name</b>").'</li>';
+	my ($uname, $udom) = split /:/, $vars->{USER_NAME};
         $result .= "<input type='hidden' name='uname' value='".
-            HTML::Entities::encode($uname) . "' />\n";
+            HTML::Entities::encode($uname,"'<>&\"") . "' />\n";
         $result .= "<input type='hidden' name='udom' value='".
-            HTML::Entities::encode($udom) . "' />\n";
+            HTML::Entities::encode($udom,"'<>&\"") . "' />\n";
     }
 
     # Print value
     if ($vars->{ACTION_TYPE} ne 'tries' && $vars->{ACTION_TYPE} ne 'weight') {
-	$result .= "<li>to <b>" . ctime($vars->{PARM_DATE}) . "</b> (" .
-	    Apache::lonnavmaps::timeToHumanString($vars->{PARM_DATE}) 
-	    . ")</li>\n";
+	$result .= '<li>'.&mt('to [_1] ([_2])',"<b>".ctime($vars->{PARM_DATE})."</b>",Apache::lonnavmaps::timeToHumanString($vars->{PARM_DATE}))."</li>\n";
     }
  
     # print pres_marker
@@ -3200,7 +3426,7 @@ sub render {
     $result .= "\n<input type='hidden' value='$symb' name='pssymb' />";
     $result .= "\n<input type='hidden' value='$paramlevel' name='parmlev' />";
 
-    $result .= "<br /><br /><center><input type='submit' value='Finish Helper' /></center></form>\n";
+    $result .= "<br /><br /><center><input type='submit' value='".&mt('Finish Helper')."' /></center></form>\n";
 
     return $result;
 }