--- loncom/interface/lonhelper.pm	2006/12/18 21:48:47	1.160
+++ loncom/interface/lonhelper.pm	2009/06/15 11:18:11	1.176
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # .helper XML handler to implement the LON-CAPA helper
 #
-# $Id: lonhelper.pm,v 1.160 2006/12/18 21:48:47 albertel Exp $
+# $Id: lonhelper.pm,v 1.176 2009/06/15 11:18:11 bisitz Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -188,6 +188,8 @@ use Apache::lonlocal;
 use Apache::lonnet;
 use Apache::longroup;
 use Apache::lonselstudent;
+
+
 use LONCAPA;
 
 # Register all the tags with the helper, so the helper can 
@@ -529,7 +531,7 @@ 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();
     }
@@ -587,78 +589,75 @@ sub display {
 	&Apache::loncommon::browser_and_searcher_javascript().
 	"\n".'</script>';
 
+    # Breadcrumbs
+    my $brcrum = [{'href' => '',
+                   'text' => 'Helper'}];
+    # FIXME: Dynamically add context sensitive breadcrumbs
+    #        depending on the caller,
+    #        e.g. printing, parametrization, etc.
+    # FIXME: Add breadcrumbs to reflect current helper state
+
     $result .= &Apache::loncommon::start_page($self->{TITLE},
-					      $browser_searcher_js);
-    
-    my $previous = HTML::Entities::encode(&mt("<- Previous"), '<>&"');
-    my $next = HTML::Entities::encode(&mt("Next ->"), '<>&"');
+                                              $browser_searcher_js,
+                                              {'bread_crumbs' => $brcrum,});
+
+    my $previous = HTML::Entities::encode(&mt("Back"), '<>&"');
+    my $next = HTML::Entities::encode(&mt("Next"), '<>&"');
     # FIXME: This should be parameterized, not concatenated - Jeremy
 
 
-    if (!$state->overrideForm()) { $result.="<form name='helpform' method='POST'>"; }
+    if (!$state->overrideForm()) { $result.='<form name="helpform" method="post">'; }
     if ($stateHelp) {
-	$stateHelp = &Apache::loncommon::help_open_topic($stateHelp);
-    }
-    $result .= <<HEADER;
-        <table border="0" width='100%'><tr><td>
-        <h2><i>$stateTitle</i>$stateHelp</h2>
-HEADER
-
-    $result .= "<table cellpadding='10' width='100%'><tr><td rowspan='2' valign='top'>";
-
-    if (!$state->overrideForm()) {
-        $result .= $self->_saveVars();
+        $stateHelp = &Apache::loncommon::help_open_topic($stateHelp);
     }
-    $result .= $state->render();
-
-    $result .= "</td><td valign='top' align='right'>";
 
-    # Warning: Copy and pasted from below, because it's too much trouble to 
-    # turn this into a subroutine
+    # Prepare buttons
+    my $buttons;
     if (!$state->overrideForm()) {
         if ($self->{STATE} ne $self->{START_STATE}) {
             #$result .= '<input name="SUBMIT" type="submit" value="&lt;- Previous" />&nbsp;&nbsp;';
         }
+        $buttons = '<p>'; # '<fieldset>';
         if ($self->{DONE}) {
             my $returnPage = $self->{RETURN_PAGE};
-            $result .= "<a href=\"$returnPage\">" . &mt("End Helper") . "</a>";
+            $buttons .= '<a href="'.$returnPage.'">'.&mt('End Helper').'</a>';
         }
         else {
-            $result .= '<nobr><input name="back" type="button" ';
-            $result .= 'value="' . $previous . '" onclick="history.go(-1)" /> ';
-            $result .= '<input name="SUBMIT" type="submit" value="' . $next . '" /></nobr>';
+            $buttons .= '<span class="LC_nobreak">'
+                       .'<input name="back" type="button" '
+                       .'value="'.$previous.'" onclick="history.go(-1)" /> '
+                       .'<input name="SUBMIT" type="submit" value="'.$next.'" />'
+                       .'</span>';
         }
+    $buttons .= '</p>'; # '</fieldset>';
     }
 
-    $result .= "</td></tr><tr><td valign='bottom' align='right'>";
 
-    # Warning: Copy and pasted from above, because it's too much trouble to 
-    # turn this into a subroutine
+
+    $result .= '<h2>'.$stateTitle.$stateHelp.'</h2>';
+
+#   $result .= '<div>';
+
+    # Top buttons
+    $result .= $buttons;
+
+    # Main content of current helper screen
     if (!$state->overrideForm()) {
-        if ($self->{STATE} ne $self->{START_STATE}) {
-            #$result .= '<input name="SUBMIT" type="submit" value="&lt;- Previous" />&nbsp;&nbsp;';
-        }
-        if ($self->{DONE}) {
-            my $returnPage = $self->{RETURN_PAGE};
-            $result .= "<a href=\"$returnPage\">" . &mt('End Helper') . "</a>";
-        }
-        else {
-            $result .= '<nobr><input name="back" type="button" ';
-            $result .= 'value="' . $previous . '" onclick="history.go(-1)" /> ';
-            $result .= '<input name="SUBMIT" type="submit" value="' . $next . '" /></nobr>';
-        }
+        $result .= $self->_saveVars();
     }
+    $result .= $state->render();
+
+    # Bottom buttons
+    $result .= $buttons;
+
 
     #foreach my $key (keys %{$self->{VARS}}) {
     #    $result .= "|$key| -> " . $self->{VARS}->{$key} . "<br />";
     #}
 
-    $result .= "</td></tr></table>";
+#   $result .= '</div>';
 
     $result .= <<FOOTER;
-              </td>
-            </tr>
-          </table>
         </form>
 FOOTER
 
@@ -1008,6 +1007,9 @@ sub start_message {
     if (defined($token->[2]{'nextstate'})) {
         $paramHash->{NEXTSTATE} = $token->[2]{'nextstate'};
     }
+    if (defined($token->[2]{'type'})) {
+        $paramHash->{TYPE} = $token->[2]{'type'};
+    }
     return '';
 }
 
@@ -1023,8 +1025,16 @@ sub end_message {
 
 sub render {
     my $self = shift;
-
-    return &mtn($self->{MESSAGE_TEXT});
+    
+    if ($self->{TYPE} =~ /^\s*warning\s*$/i) {
+	 $self->{MESSAGE_TEXT} = 
+	     '<span class="LC_warning">'. $self->{MESSAGE_TEXT}.'</span>';
+    }
+    if ($self->{TYPE} =~ /^\s*error\s*$/i) {
+	 $self->{MESSAGE_TEXT} = 
+	     '<span class="LC_error">'. $self->{MESSAGE_TEXT}.'</span>';
+    }
+    return $self->{MESSAGE_TEXT};
 }
 # If a NEXTSTATE was given, switch to it
 sub postprocess {
@@ -1477,7 +1487,7 @@ BUTTONS
             $choiceLabel = &$choiceLabel($helper, $self);
         }
         $result .= "/></td><td> ".qq{<label for="id$id">}.
-            $choiceLabel. "</label></td>";
+	    $choiceLabel. "</label></td>";
 	if ($choice->[4]) {
 	    $result .='<td><input type="text" size="5" name="'
 		.$choice->[4].'_forminput" value="'
@@ -1497,12 +1507,15 @@ sub postprocess {
     my $self = shift;
     my $chosenValue = $env{'form.' . $self->{'variable'} . '_forminput'};
 
+
     if (!defined($chosenValue) && !$self->{'allowempty'}) {
         $self->{ERROR_MSG} = 
 	    &mt("You must choose one or more choices to continue.");
         return 0;
     }
 
+
+
     if (ref($chosenValue)) {
         $helper->{VARS}->{$self->{'variable'}} = join('|||', @$chosenValue);
     }
@@ -1714,7 +1727,7 @@ no strict;
 use strict;
 use Apache::lonlocal; # A localization nightmare
 use Apache::lonnet;
-use Time::localtime;
+use DateTime;
 
 BEGIN {
     &Apache::lonhelper::register('Apache::lonhelper::date',
@@ -1764,14 +1777,13 @@ sub render {
     my $time=time;
     my ($anytime,$onclick);
 
-
     # first check VARS for a valid new value from the user
     # then check DEFAULT_VALUE for a valid default time value
     # otherwise pick now as reasonably good time
 
     if (defined($helper->{VARS}{$var})
 	&&  $helper->{VARS}{$var} > 0) {
-	$date = localtime($helper->{VARS}{$var});
+        $date = &get_date_object($helper->{VARS}{$var}); 
     } elsif (defined($self->{DEFAULT_VALUE})) {
         my $valueFunc = eval($self->{DEFAULT_VALUE});
         die('Error in default value code for variable ' . 
@@ -1779,17 +1791,17 @@ sub render {
         $time = &$valueFunc($helper, $self);
 	if (lc($time) eq 'anytime') {
 	    $anytime=1;
-	    $date = localtime(time);
+	    $date = &get_date_object(time);
 	    $date->min(0);
 	} elsif (defined($time) && $time ne 0) {
-	    $date = localtime($time);
+	    $date = &get_date_object($time);
 	} else {
 	    # leave date undefined so it'll default to now
 	}
     }
 
     if (!defined($date)) {
-	$date = localtime(time);
+	$date = &get_date_object(time);
 	$date->min(0);
     }
 
@@ -1806,12 +1818,12 @@ sub render {
     my $i;
     $result .= "<select $onclick name='${var}month'>\n";
     for ($i = 0; $i < 12; $i++) {
-        if ($i == $date->mon) {
+        if (($i + 1) == $date->mon) {
             $result .= "<option value='$i' selected='selected'>";
         } else {
             $result .= "<option value='$i'>";
         }
-        $result .= &mt($months[$i]) . "</option>\n";
+        $result .= &mt($months[$i])."</option>\n";
     }
     $result .= "</select>\n";
 
@@ -1830,7 +1842,7 @@ sub render {
     # Year
     $result .= "<select $onclick name='${var}year'>\n";
     for ($i = 2000; $i < 2030; $i++) { # update this after 64-bit dates
-        if ($date->year + 1900 == $i) {
+        if ($date->year == $i) {
             $result .= "<option selected='selected'>";
         } else {
             $result .= "<option>";
@@ -1885,6 +1897,7 @@ sub render {
         }
         $result .= "</select>\n";
     }
+    $result  .= ' '.$date->time_zone_short_name().' ';
     if ($self->{'anytime'}) {
 	$result.=(<<CHECK);
 <script type="text/javascript">
@@ -1912,7 +1925,8 @@ sub postprocess {
     if ($env{'form.' . $var . 'anytime'}) {
 	$helper->{VARS}->{$var} = undef;
     } else {
-	my $month = $env{'form.' . $var . 'month'}; 
+	my $month = $env{'form.' . $var . 'month'};
+        $month ++;
 	my $day = $env{'form.' . $var . 'day'}; 
 	my $year = $env{'form.' . $var . 'year'}; 
 	my $min = 0; 
@@ -1922,25 +1936,40 @@ sub postprocess {
 	    $hour = $env{'form.' . $var . 'hour'};
 	}
 
-	my $chosenDate;
-	eval {$chosenDate = Time::Local::timelocal(0, $min, $hour, $day, $month, $year);};
+	my ($chosenDate,$checkDate);
+        my $timezone = &Apache::lonlocal::gettimezone();
+        my $dt;
+	eval {
+               $dt = DateTime->new( year   => $year,
+                                    month  => $month,
+                                    day    => $day,
+                                    hour   => $hour,
+                                    minute => $min,
+                                    second => 0,
+                                    time_zone => $timezone,
+                             );
+        };
+
 	my $error = $@;
+        if (!$error) {
+            $chosenDate  = $dt->epoch;
+            $checkDate = &get_date_object($chosenDate);
+        }
 
 	# Check to make sure that the date was not automatically co-erced into a 
 	# valid date, as we want to flag that as an error
 	# This happens for "Feb. 31", for instance, which is coerced to March 2 or
 	# 3, depending on if it's a leap year
-	my $checkDate = localtime($chosenDate);
 	
 	if ($error || $checkDate->mon != $month || $checkDate->mday != $day ||
-	    $checkDate->year + 1900 != $year) {
+	    $checkDate->year != $year) {
 	    unless (Apache::lonlocal::current_language()== ~/^en/) {
 		$self->{ERROR_MSG} = &mt("Invalid date entry");
 		return 0;
 	    }
 	    # LOCALIZATION FIXME: Needs to be parameterized
-	    $self->{ERROR_MSG} = "Can't use " . $months[$month] . " $day, $year as a "
-		. "date because it doesn't exist. Please enter a valid date.";
+	    $self->{ERROR_MSG} = "Can't use ".$months[$env{'form.'.$var.'month'}].                                 " $day, $year as a ".
+		                 "date because it doesn't exist. Please enter a valid date.";
 
 	    return 0;
 	}
@@ -1963,6 +1992,20 @@ sub postprocess {
 
     return 1;
 }
+
+sub get_date_object {
+    my ($epoch) = @_;
+    my $dt = DateTime->from_epoch(epoch => $epoch)
+                     ->set_time_zone(&Apache::lonlocal::gettimezone());
+    my $lang = Apache::lonlocal::current_language();
+    if ($lang ne '') {
+        eval {
+            $dt->set_locale($lang);
+        };
+    }
+    return $dt;
+}
+
 1;
 
 package Apache::lonhelper::resource;
@@ -1989,7 +2032,8 @@ folders that have all of their contained
 be filtered out. The 'addstatus' attribute, if true, will add the icon
 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.
+than 1 part. The 'includecourse' attribute if true, will include
+the toplevel default.sequence in the results.
 
 =head3 SUB-TAGS
 
@@ -2062,6 +2106,7 @@ sub start_resource {
 	$helper->declareVar($paramHash->{'variable'}.'_part');
     }
     $paramHash->{'closeallpages'} = $token->[2]{'closeallpages'};
+    $paramHash->{'include_top_level_map'} = $token->[2]{'includecourse'};
     return '';
 }
 
@@ -2387,6 +2432,7 @@ RADIO
                                        'resource_no_folder_link' => 1,
 				       'closeAllPages' => $self->{'closeallpages'},
                                        'suppressEmptySequences' => $self->{'suppressEmptySequences'},
+				       'include_top_level_map' => $self->{'include_top_level_map'},
                                        'iterator_map' => $mapUrl }
                                        );
 
@@ -2402,6 +2448,21 @@ sub postprocess {
         $self->{ERROR_MSG} = 'You must choose at least one resource to continue.';
         return 0;
     }
+    # For each of the attached options.  If it's env var is undefined, set it to
+    # an empty string instead.. an undef'd env var means no choices selected.
+    #
+
+    my $option_vars = $self->{OPTION_VARS};
+    if ($option_vars) {
+	foreach my $var (@$option_vars) {
+	    my $env_name = "form.".$var."_forminput";
+	    if (!defined($env{$env_name})) {
+		$env{$env_name} = '';
+		$helper->{VARS}->{$var} = '';
+	    }
+	}
+    }
+
 
     if (defined($self->{NEXTSTATE})) {
         $helper->changeState($self->{NEXTSTATE});
@@ -2818,17 +2879,17 @@ BUTTONS
 	    &Apache::loncacc::constructaccess($subdir,
 				     $Apache::lonnet::perlvar{'lonDefDomain'});
 	$metadir='/res/'.$domain.'/'.$user.'/'.$2;
-        @fileList = &Apache::lonnet::dirlist($subdir, $domain, $user, '');
+        @fileList = &Apache::lonnet::dirlist($subdir,$domain,$user,undef,undef,'/');
     } elsif ($subdir =~ m|^~([^/]+)/(.*)$|) {
 	$subdir='/home/'.$1.'/public_html/'.$2;
 	my ($user,$domain)= 
 	    &Apache::loncacc::constructaccess($subdir,
 				     $Apache::lonnet::perlvar{'lonDefDomain'});
 	$metadir='/res/'.$domain.'/'.$user.'/'.$2;
-        @fileList = &Apache::lonnet::dirlist($subdir, $domain, $user, '');
+        @fileList = &Apache::lonnet::dirlist($subdir,$domain,$user,undef,undef,'/');
     } 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'},undef,undef,'/');
     }
 
     # Sort the fileList into order
@@ -3377,7 +3438,7 @@ snippets and collecting the results. Fin
 helper, going to a provided page.
 
 If the parameter "restartCourse" is true, this will override the buttons and
-will make a "Finish Helper" button that will re-initialize the course for them,
+will make a Save button (Finish Helper) that will re-initialize the course for them,
 which is useful for the Course Initialization helper so the users never see
 the old values taking effect.
 
@@ -3484,7 +3545,7 @@ sub render {
 
     my $actionURL = $self->{EXIT_PAGE};
     my $targetURL = '';
-    my $finish=&mt('Finish');
+	my $finish=&mt('Save');
     if ($self->{'restartCourse'}) {
 	$actionURL = '/adm/roles';
 	$targetURL = '/adm/menu';
@@ -3496,21 +3557,19 @@ sub render {
 	if ($env{'course.'.$env{'request.course.id'}.'.clonedfrom'}) {
 	    $targetURL = '/adm/parmset?overview=1';
 	}
-	my $finish=&mt('Finish Course Initialization');
     }
-    my $previous = HTML::Entities::encode(&mt("<- Previous"), '<>&"');
-    my $next = HTML::Entities::encode(&mt("Next ->"), '<>&"');
+    my $previous = HTML::Entities::encode(&mt("Back"), '<>&"');
+    my $next = HTML::Entities::encode(&mt("Next"), '<>&"');
     my $target = " target='loncapaclient'";
-    if (($env{'browser.interface'} eq 'textual') ||
-        ($env{'environment.remote'} eq 'off')) {  $target='';  }
-    $result .= "<center>\n" .
+    if ($env{'environment.remote'} eq 'off') {  $target='';  }
+    $result .= "<p>\n" .
 	"<form action='".$actionURL."' method='post' $target>\n" .
 	"<input type='button' onclick='history.go(-1)' value='$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>";
+	"</form></p>\n";
 
     return $result;
 }
@@ -3589,7 +3648,7 @@ sub render {
     
     # Print the granularity, depending on the action
     if ($vars->{GRANULARITY} eq 'whole_course') {
-        $resourceString .= '<li>'.&mt('for <b>all resources in the course</b>').'</li>';
+        $resourceString .= '<li>'.&mt('for [_1]all resources in the course[_2]','<b>','</b>').'</li>';
 	if ($vars->{TARGETS} eq 'course') {
 	    $level = 14; # general course, see lonparmset.pm perldoc
 	} elsif ($vars->{TARGETS} eq 'section') {
@@ -3604,10 +3663,16 @@ sub render {
         $paramlevel = 'general';
     } elsif ($vars->{GRANULARITY} eq 'map') {
         my $navmap = Apache::lonnavmaps::navmap->new();
-        my $res = $navmap->getByMapPc($vars->{RESOURCE_ID});
-        my $title = $res->compTitle();
-        $symb = $res->symb();
-        $resourceString .= '<li>'.&mt('for the map named [_1]',"<b>$title</b>").'</li>';
+        if (defined($navmap)) {
+             my $res = $navmap->getByMapPc($vars->{RESOURCE_ID});
+             my $title = $res->compTitle();
+             $symb = $res->symb();
+             $resourceString .= '<li>'.&mt('for the map named [_1]',"<b>$title</b>").'</li>';
+        } else {
+            $resourceString .= '<li>'.&mt('for the map ID [_1] (name unavailable)','<b>'.$vars->{RESOURCE_ID}.'</b>').'</li>';
+            &Apache::lonnet::logthis('Retrieval of map title failed in lonhelper.pm - could not create navmap object for course.');
+
+        }
 	if ($vars->{TARGETS} eq 'course') {
 	    $level = 13; # general course, see lonparmset.pm perldoc
 	} elsif ($vars->{TARGETS} eq 'section') {
@@ -3620,13 +3685,18 @@ sub render {
         $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();
-        $resourceString .= '<li>'.&mt('for the resource named [_1] part [_2]',"<b>$title</b>","<b>$part</b>").'</li>';
+        my $navmap = Apache::lonnavmaps::navmap->new();
+        if (defined($navmap)) {
+            my $res = $navmap->getById($vars->{RESOURCE_ID});
+            $symb = $res->symb();
+            my $title = $res->compTitle();
+            $resourceString .= '<li>'.&mt('for the resource named [_1], part [_2]',"<b>$title</b>","<b>$part</b>").'</li>';
+        } else {
+            $resourceString .= '<li>'.&mt('for the resource ID [_1] (name unavailable), part [_2]','<b>'.$vars->{RESOURCE_ID}.'</b>',"<b>$part</b>").'</li>';
+            &Apache::lonnet::logthis('Retrieval of resource title failed in lonhelper.pm - could not create navmap object for course.');
+        }
 	if ($vars->{TARGETS} eq 'course') {
 	    $level = 10; # general course, see lonparmset.pm perldoc
 	} elsif ($vars->{TARGETS} eq 'section') {
@@ -3640,7 +3710,7 @@ sub render {
         $paramlevel = 'full';
     }
 
-    my $result = "<form name='helpform' method='POST' action='/adm/parmset#$affectedResourceId&$parm_name&$level'>\n";
+    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='".
@@ -3657,7 +3727,10 @@ sub render {
     $result .= "<input type='hidden' name='psprt' value='".
 	HTML::Entities::encode($part,"'<>&\"") . "' />\n";
 
-    $result .= '<p>'.&mt('Confirm that this information is correct, then click &quot;Finish Helper&quot; to complete setting the parameter.').'<ul>';
+    $result .= '<p class="LC_info">'
+              .&mt('Confirm that this information is correct, then click &quot;Save&quot; to complete setting the parameter.')
+              .'</p>'
+              .'<ul>';
     
     # Print the type of manipulation:
     my $extra;
@@ -3705,7 +3778,7 @@ sub render {
     
     # Print targets
     if ($vars->{TARGETS} eq 'course') {
-        $result .= '<li>'.&mt('for <b>all students in course</b>').'</li>';
+        $result .= '<li>'.&mt('for [_1]all students in course[_2]','<b>','</b>').'</li>';
     } elsif ($vars->{TARGETS} eq 'section') {
         my $section = $vars->{SECTION_NAME};
         $result .= '<li>'.&mt('for section [_1]',"<b>$section</b>").'</li>';
@@ -3730,9 +3803,21 @@ sub render {
 
     # Print value
     if ($vars->{ACTION_TYPE} ne 'tries' && $vars->{ACTION_TYPE} ne 'weight') {
-	$result .= '<li>'.&mt('to [_1] ([_2])',"<b>".ctime($vars->{PARM_DATE})."</b>",Apache::lonnavmaps::timeToHumanString($vars->{PARM_DATE}))."</li>\n";
+        my $showdate = &Apache::lonlocal::locallocaltime($vars->{PARM_DATE});
+	$result .= '<li>'.&mt('to [_1] ([_2])',"<b>".$showdate."</b>",Apache::lonnavmaps::timeToHumanString($vars->{PARM_DATE}))."</li>\n";
     }
+
+	$result .= '</ul>';
  
+# FIXME: Make previous button working
+#        Found to be dysfunctional when used to change the selected student
+#   my $previous = HTML::Entities::encode(&mt("Back"), '<>&"');
+    my $buttons .= '<p><span class="LC_nobreak">'
+#                 .'<input name="back" type="button"'
+#                 .' value="'.$previous.'" onclick="history.go(-1)" />'
+                  .' <input type="submit" value="'.&mt('Save').'" />' # Finish Helper
+                  .'</span></p>'."\n";
+
     # print pres_marker
     $result .= "\n<input type='hidden' name='pres_marker'" .
         " value='$affectedResourceId&$parm_name&$level' />\n";
@@ -3742,7 +3827,7 @@ 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='".&mt('Finish Helper')."' /></center></form>\n";
+    $result .= $buttons;
 
     return $result;
 }