--- loncom/interface/lonhtmlcommon.pm	2006/07/18 21:55:24	1.144
+++ loncom/interface/lonhtmlcommon.pm	2010/03/19 22:34:23	1.182.4.13
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common html routines
 #
-# $Id: lonhtmlcommon.pm,v 1.144 2006/07/18 21:55:24 albertel Exp $
+# $Id: lonhtmlcommon.pm,v 1.182.4.13 2010/03/19 22:34:23 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -60,9 +60,104 @@ use Time::Local;
 use Time::HiRes;
 use Apache::lonlocal;
 use Apache::lonnet;
-use lib '/home/httpd/lib/perl/';
 use LONCAPA;
 
+sub coursepreflink {
+    my ($text,$category)=@_;
+    if (&Apache::lonnet::allowed('opa',$env{'request.course.id'})) {
+        return '<a href="/adm/courseprefs?phase=display&amp;actions='.$category.'">'.$text.'</a>';
+    } else {
+        return '';
+    }
+}
+
+sub raw_href_to_link {
+    my ($message)=@_;
+    $message=~s/(https?\:\/\/[^\s\'\"\<]+)([\s\<]|$)/<a href="$1"><tt>$1<\/tt><\/a>$2/gi;
+    return $message;
+}
+
+##############################################
+##############################################
+
+=pod
+
+=item confirm_success
+
+Successful completion of an operation message
+
+=cut
+
+sub confirm_success {
+   my ($message,$failure)=@_;
+   if ($failure) {
+      return '<span class="LC_error" style="font-size: inherit;">'."\n"
+            .'<img src="/adm/lonIcons/navmap.wrong.gif" alt="'.&mt('Error').'" /> '."\n"
+            .$message."\n"
+            .'</span>'."\n";
+   } else {
+      return '<span class="LC_success">'."\n"
+            .'<img src="/adm/lonIcons/navmap.correct.gif" alt="'.&mt('OK').'" /> '."\n"
+            .$message."\n"
+            .'</span>'."\n";
+   }
+}
+
+##############################################
+##############################################
+
+=pod
+
+=item dragmath_button
+
+Creates a button that launches a dragmath popup-window, in which an 
+expression can be edited and pasted as LaTeX into a specified textarea. 
+
+  textarea - Name of the textarea to edit.
+  helpicon - If true, show a help icon to the right of the button.
+
+=cut
+
+sub dragmath_button {
+    my ($textarea,$helpicon) = @_;
+    my $help_text; 
+    if ($helpicon) {
+        $help_text = &Apache::loncommon::help_open_topic('Authoring_Math_Editor');
+    }
+    my $buttontext=&mt('Edit Math');
+    return <<ENDDRAGMATH;
+                <input type="button" value="$buttontext", onclick="javascript:mathedit('$textarea',document)" />$help_text
+ENDDRAGMATH
+}
+
+##############################################
+
+=pod
+
+=item dragmath_js
+
+Javascript used to open pop-up window containing dragmath applet which 
+can be used to paste LaTeX into a textarea.
+ 
+=cut
+
+sub dragmath_js {
+    my ($popup) = @_;
+    return <<ENDDRAGMATHJS;
+                <script type="text/javascript">
+                // <![CDATA[
+                  function mathedit(textarea, doc) {
+                     targetEntry = textarea;
+                     targetDoc   = doc;
+                     newwin  = window.open("/adm/dragmath/applet/$popup.html","","width=565,height=500,resizable");
+                  }
+                // ]]>
+                </script>
+
+ENDDRAGMATHJS
+}
+
+
 ##############################################
 ##############################################
 
@@ -78,7 +173,7 @@ use LONCAPA;
 sub authorbombs {
     my $url=shift;
     $url=&Apache::lonnet::declutter($url);
-    my ($udom,$uname)=($url=~/^(\w+)\/(\w+)\//);
+    my ($udom,$uname)=($url=~m{^($LONCAPA::domain_re)/($LONCAPA::username_re)/});
     my %bombs=&Apache::lonmsg::all_url_author_res_msg($uname,$udom);
     foreach (keys %bombs) {
 	if ($_=~/^$udom\/$uname\//) {
@@ -141,6 +236,10 @@ sub select_recent {
     foreach my $value (sort(keys(%recent))) {
 	unless ($value =~/^error\:/) {
 	    my $escaped = &Apache::loncommon::escape_url($value);
+	    &Apache::loncommon::inhibit_menu_check(\$escaped);
+            if ($area eq 'residx') {
+                next if ((!&Apache::lonnet::allowed('bre',$value)) && (!&Apache::lonnet::allowed('bro',$value)));
+            }
 	    $return.="\n<option value='$escaped'>".
 		&unescape((split(/\&/,$recent{$value}))[1]).
 		'</option>';
@@ -231,7 +330,7 @@ sub checkbox {
         $Str .= 'value="'.$value.'"';
     } 
     if ($checked) {
-        $Str .= ' checked="1"';
+        $Str .= ' checked="checked"';
     }
     $Str .= ' />';
     return $Str;
@@ -253,7 +352,7 @@ sub radio {
         $Str .= 'value="'.$value.'"';
     } 
     if ($checked eq $value) {
-        $Str .= ' checked="1"';
+        $Str .= ' checked="checked"';
     }
     $Str .= ' />';
     return $Str;
@@ -311,6 +410,7 @@ The method used to restrict user input w
 sub date_setter {
     my ($formname,$dname,$currentvalue,$special,$includeempty,$state,
         $no_hh_mm_ss,$defhour,$defmin,$defsec,$nolink) = @_;
+    my $now = time;
     my $wasdefined=1;
     if (! defined($state) || $state ne 'disabled') {
         $state = '';
@@ -319,28 +419,25 @@ sub date_setter {
         $no_hh_mm_ss = 0;
     }
     if ($currentvalue eq 'now') {
-	$currentvalue=time;
+	$currentvalue = $now;
     }
     if ((!defined($currentvalue)) || ($currentvalue eq '')) {
 	$wasdefined=0;
 	if ($includeempty) {
 	    $currentvalue = 0;
 	} else {
-	    $currentvalue = time;
+	    $currentvalue = $now;
 	}
     }
     # other potentially useful values:     wkday,yrday,is_daylight_savings
+    my $tzname;
     my ($sec,$min,$hour,$mday,$month,$year)=('','',undef,'','','');
     if ($currentvalue) {
-	($sec,$min,$hour,$mday,$month,$year,undef,undef,undef) = 
-	    localtime($currentvalue);
-	$year += 1900;
+        ($tzname,$sec,$min,$hour,$mday,$month,$year) = &get_timedates($currentvalue); 
     }
     unless ($wasdefined) {
 	if (($defhour) || ($defmin) || ($defsec)) {
-	    ($sec,$min,$hour,$mday,$month,$year,undef,undef,undef) = 
-		localtime(time);
-	    $year += 1900;
+            ($tzname,$sec,$min,$hour,$mday,$month,$year) = &get_timedates($now);
 	    $sec=($defsec?$defsec:0);
 	    $min=($defmin?$defmin:0);
 	    $hour=($defhour?$defhour:0);
@@ -353,6 +450,7 @@ sub date_setter {
     my $result = "\n<!-- $dname date setting form -->\n";
     $result .= <<ENDJS;
 <script type="text/javascript">
+// <![CDATA[
     function $dname\_checkday() {
         var day   = document.$formname.$dname\_day.value;
         var month = document.$formname.$dname\_month.value;
@@ -413,6 +511,7 @@ document.$formname.$dname\_year.value,
         }
 
     }
+// ]]>
 </script>
 ENDJS
     $result .= '  <span style="white-space: nowrap;">';
@@ -424,23 +523,23 @@ ENDJS
     unshift(@Months,'If you can read this an error occurred');
     if ($includeempty) { $monthselector.="<option value=''></option>"; }
     for(my $m = 1;$m <=$#Months;$m++) {
-        $monthselector .= qq{      <option value="$m" };
-        $monthselector .= "selected " if ($m-1 eq $month);
-        $monthselector .= '> '.&mt($Months[$m]).' </option>';
+        $monthselector .= qq{      <option value="$m"};
+        $monthselector .= ' selected="selected"' if ($m-1 eq $month);
+        $monthselector .= '> '.&mt($Months[$m]).' </option>'."\n";
     }
     $monthselector.= '  </select>';
     # Day
     my $dayselector = qq{<input type="text" name="$dname\_day" $state value="$mday" size="3" $special onchange="javascript:$dname\_checkday()" />};
     # Year
-    my $yearselector = qq{<input type="year" name="$dname\_year" $state value="$year" size="5" $special onchange="javascript:$dname\_checkday()" />};
+    my $yearselector = qq{<input type="text" name="$dname\_year" $state value="$year" size="5" $special onchange="javascript:$dname\_checkday()" />};
     #
     my $hourselector = qq{<select name="$dname\_hour" $special $state >};
     if ($includeempty) { 
         $hourselector.=qq{<option value=''></option>};
     }
     for (my $h = 0;$h<24;$h++) {
-        $hourselector .= qq{<option value="$h" };
-        $hourselector .= "selected " if (defined($hour) && $hour == $h);
+        $hourselector .= qq{<option value="$h"};
+        $hourselector .= ' selected="selected"' if (defined($hour) && $hour == $h);
         $hourselector .= ">";
         my $timest='';
         if ($h == 0) {
@@ -463,16 +562,19 @@ ENDJS
         $cal_link = qq{<a href="javascript:$dname\_opencalendar()">};
     }
     #
+    my $tzone = ' '.$tzname.' ';
     if ($no_hh_mm_ss) {
         $result .= &mt('[_1] [_2] [_3] ',
-                       $monthselector,$dayselector,$yearselector);
+                       $monthselector,$dayselector,$yearselector).
+                   $tzone;
         if (!$nolink) {
             $result .= &mt('[_1]Select Date[_2]',$cal_link,'</a>');
         }
     } else {
         $result .= &mt('[_1] [_2] [_3] [_4] [_5]m [_6]s ',
                       $monthselector,$dayselector,$yearselector,
-                      $hourselector,$minuteselector,$secondselector);
+                      $hourselector,$minuteselector,$secondselector).
+                   $tzone;
         if (!$nolink) {
             $result .= &mt('[_1]Select Date[_2]',$cal_link,'</a>');
         }
@@ -481,6 +583,35 @@ ENDJS
     return $result;
 }
 
+sub get_timedates {
+    my ($epoch) = @_;
+    my $dt = DateTime->from_epoch(epoch => $epoch)
+                     ->set_time_zone(&Apache::lonlocal::gettimezone());
+    my $tzname = $dt->time_zone_short_name();
+    my $sec = $dt->second;
+    my $min = $dt->minute;
+    my $hour = $dt->hour;
+    my $mday = $dt->day;
+    my $month = $dt->month;
+    if ($month) {
+        $month --;
+    }
+    my $year = $dt->year;
+    return ($tzname,$sec,$min,$hour,$mday,$month,$year);
+}
+
+sub build_url {
+    my ($base, $fields)=@_;
+    my $url;
+    $url = $base.'?';
+    foreach my $key (keys(%$fields)) {
+        $url.=&escape($key).'='.&escape($$fields{$key}).'&amp;';
+    }
+    $url =~ s/&amp;$//;
+    return $url;
+}
+
+
 ##############################################
 ##############################################
 
@@ -496,7 +627,7 @@ Inputs:
 
 =item $dname
 
-The name passed to &datesetter, which prefixes the form elements.
+The name passed to &date_setter, which prefixes the form elements.
 
 =item $defaulttime
 
@@ -549,20 +680,33 @@ sub get_date_from_form {
     if (defined($env{'form.'.$dname.'_month'})) {
         my $tmpmonth = $env{'form.'.$dname.'_month'};
         if (($tmpmonth =~ /^\d+$/) && ($tmpmonth > 0) && ($tmpmonth < 13)) {
-            $month = $tmpmonth - 1;
+            $month = $tmpmonth;
         }
     }
     if (defined($env{'form.'.$dname.'_year'})) {
         my $tmpyear = $env{'form.'.$dname.'_year'};
-        if (($tmpyear =~ /^\d+$/) && ($tmpyear > 1900)) {
-            $year = $tmpyear - 1900;
+        if (($tmpyear =~ /^\d+$/) && ($tmpyear >= 1970)) {
+            $year = $tmpyear;
         }
     }
-    if (($year<70) || ($year>137)) { return undef; }
+    if (($year<1970) || ($year>2037)) { return undef; }
     if (defined($sec) && defined($min)   && defined($hour) &&
-        defined($day) && defined($month) && defined($year) &&
-        eval('&timelocal($sec,$min,$hour,$day,$month,$year)')) {
-        return &timelocal($sec,$min,$hour,$day,$month,$year);
+        defined($day) && defined($month) && defined($year)) {
+        my $timezone = &Apache::lonlocal::gettimezone();
+        my $dt = DateTime->new( year   => $year,
+                                month  => $month,
+                                day    => $day,
+                                hour   => $hour,
+                                minute => $min,
+                                second => $sec,
+                                time_zone => $timezone,
+                              );
+        my $epoch_time  = $dt->epoch;
+        if ($epoch_time ne '') {
+            return $epoch_time;
+        } else {
+            return undef;
+        }
     } else {
         return undef;
     }
@@ -632,6 +776,8 @@ sub javascript_nothing {
 ##############################################
 ##############################################
 sub javascript_docopen {
+    my ($mimetype) = @_;
+    $mimetype ||= 'text/html';
     # safari does not understand document.open() and loads "text/html"
     my $nothing = "''";
     my $user_browser;
@@ -645,7 +791,7 @@ sub javascript_docopen {
     if ($user_browser eq 'safari' && $user_os =~ 'mac') {
         $nothing = "document.clear()";
     } else {
-	$nothing = "document.open('text/html','replace')";
+	$nothing = "document.open('$mimetype','replace')";
     }
     return $nothing;
 }
@@ -682,23 +828,18 @@ Returns: a perl string as described.
 ##############################################
 ##############################################
 sub StatusOptions {
-    my ($status, $formName,$size,$onchange)=@_;
+    my ($status, $formName,$size,$onchange,$mult)=@_;
     $size = 1 if (!defined($size));
     if (! defined($status)) {
         $status = 'Active';
         $status = $env{'form.Status'} if (exists($env{'form.Status'}));
     }
 
-    my $OpSel1 = '';
-    my $OpSel2 = '';
-    my $OpSel3 = '';
-
-    if($status eq 'Any')         { $OpSel3 = ' selected'; }
-    elsif($status eq 'Expired' ) { $OpSel2 = ' selected'; }
-    else                         { $OpSel1 = ' selected'; }
-
     my $Str = '';
     $Str .= '<select name="Status"';
+    if (defined($mult)){
+        $Str .= ' multiple="multiple" ';
+    }
     if(defined($formName) && $formName ne '' && ! defined($onchange)) {
         $Str .= ' onchange="document.'.$formName.'.submit()"';
     }
@@ -707,12 +848,18 @@ sub StatusOptions {
     }
     $Str .= ' size="'.$size.'" ';
     $Str .= '>'."\n";
-    $Str .= '<option value="Active" '.$OpSel1.'>'.
-        &mt('Currently Enrolled').'</option>'."\n";
-    $Str .= '<option value="Expired" '.$OpSel2.'>'.
-        &mt('Previously Enrolled').'</option>'."\n";
-    $Str .= '<option value="Any" '.$OpSel3.'>'.
-        &mt('Any Enrollment Status').'</option>'."\n";
+    foreach my $type (['Active',  &mt('Currently Has Access')],
+		      ['Future',  &mt('Will Have Future Access')],
+		      ['Expired', &mt('Previously Had Access')],
+		      ['Any',     &mt('Any Access Status')]) {
+	my ($name,$label) = @$type;
+	$Str .= '<option value="'.$name.'" ';
+	if ($status eq $name) {
+	    $Str .= 'selected="selected" ';
+	}
+	$Str .= '>'.$label.'</option>'."\n";
+    }
+
     $Str .= '</select>'."\n";
 }
 
@@ -849,32 +996,34 @@ sub Create_PrgWin {
 
 	#the whole function called through timeout is due to issues
 	#in mozilla Read BUG #2665 if you want to know the whole story
-	&r_print($r,'<script type="text/javascript">'.
+	&r_print($r,'<script type="text/javascript">'."\n".
+        '// <![CDATA['."\n".
         "var popwin;
          function openpopwin () {
          popwin=open(\'\',\'popwin\',\'width=400,height=100\');".
         "popwin.document.writeln(\'".$start_page.
-              "<h4>$heading<\/h4>".
-              "<form name=\"popremain\" method=\"post\">".
+              "<h4>".&mt("$heading")."<\/h4>".
+              "<form action= \"\" name=\"popremain\" method=\"post\">".
               '<input type="text" size="'.$width.'" name="remaining" value="'.
 	      &mt('Starting').'" /><\\/form>'.$end_page.
               "\');".
         "popwin.document.close();}".
-        "\nwindow.setTimeout(openpopwin,0)</script>");
+        "\nwindow.setTimeout(openpopwin,0)\n".
+        '// ]]>'."\n".
+        '</script>');
 	$prog_state{'formname'}='popremain';
 	$prog_state{'inputname'}="remaining";
     } elsif ($type eq 'inline') {
 	$prog_state{'window'}='window';
 	if (!$formname) {
 	    $prog_state{'formname'}=&get_uniq_name();
-	    &r_print($r,'<form name="'.$prog_state{'formname'}.'">');
+	    &r_print($r,'<form action="" name="'.$prog_state{'formname'}.'">');
 	} else {
 	    $prog_state{'formname'}=$formname;
 	}
 	if (!$inputname) {
 	    $prog_state{'inputname'}=&get_uniq_name();
-	    &r_print($r,$heading.' <input type="text" name="'.$prog_state{'inputname'}.
-		     '" size="'.$width.'" />');
+	    &r_print($r,&mt("$heading [_1]",' <input type="text" name="'.$prog_state{'inputname'}.'" size="'.$width.'" />'));
 	} else {
 	    $prog_state{'inputname'}=$inputname;
 	    
@@ -894,10 +1043,14 @@ sub Create_PrgWin {
 # update progress
 sub Update_PrgWin {
     my ($r,$prog_state,$displayString)=@_;
-    &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
+    &r_print($r,'<script type="text/javascript">'."\n".
+             '// <![CDATA['."\n".
+             $$prog_state{'window'}.'.document.'.
 	     $$prog_state{'formname'}.'.'.
 	     $$prog_state{'inputname'}.'.value="'.
-	     $displayString.'";</script>');
+	     $displayString.'";'."\n".
+             '// ]]>'."\n".
+             '</script>');
     $$prog_state{'laststart'}=&Time::HiRes::time();
 }
 
@@ -915,7 +1068,7 @@ sub Increment_PrgWin {
     # 
     my $str;
     if ($min == 0 && $sec > 1) {
-        $str = '[_2] seconds';
+        $str = '[_1] seconds';
     } elsif ($min == 1 && $sec > 1) {
         $str = '1 minute [_2] seconds';
     } elsif ($min == 1 && $sec < 2) {
@@ -950,11 +1103,15 @@ sub Increment_PrgWin {
     if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
         $lasttime = '';
     }
-    &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
+    &r_print($r,'<script>'."\n".
+             '// <![CDATA['."\n".
+             $$prog_state{'window'}.'.document.'.
 	     $$prog_state{'formname'}.'.'.
 	     $$prog_state{'inputname'}.'.value="'.
 	     $$prog_state{'done'}.'/'.$$prog_state{'max'}.
-	     ': '.$time_est.' '.&mt('remaining').' '.$lasttime.'";'.'</script>');
+	     ': '.$time_est.' '.&mt('remaining').' '.$lasttime.'";'."\n".
+             '// ]]>'."\n".
+             '</script>');
     $$prog_state{'laststart'}=&Time::HiRes::time();
 }
 
@@ -962,7 +1119,11 @@ sub Increment_PrgWin {
 sub Close_PrgWin {
     my ($r,$prog_state)=@_;
     if ($$prog_state{'type'} eq 'popup') {
-	&r_print($r,'<script>popwin.close()</script>'."\n");
+	&r_print($r,'<script>'."\n".
+                 '// <![CDATA['."\n".
+                 'popwin.close()'."n".
+                 '// ]]>'."\n".
+                 '</script>'."\n");
     } elsif ($$prog_state{'type'} eq 'inline') {
 	&Update_PrgWin($r,$prog_state,&mt('Done'));
     }
@@ -993,7 +1154,7 @@ sub crumbs {
     my $output='';
     unless ($noformat) { $output.='<br /><tt><b>'; }
     $output.='<font size="'.$size.'">'.$prefix.'/';
-    if ($env{'user.adv'}) {
+    if (($env{'user.adv'}) || ($env{'user.author'})) {
 	my $path=$prefix.'/';
 	foreach my $dir (split('/',$uri)) {
             if (! $dir) { next; }
@@ -1005,18 +1166,23 @@ sub crumbs {
 		} 
 	    } else {
 		$path.='/'; 
+	    }	    
+            my $href_path = &HTML::Entities::encode($path,'<>&"');
+	    &Apache::loncommon::inhibit_menu_check(\$href_path);
+	    if ($form) {
+	        my $href = 'javascript:'.$form.".action='".$href_path."';".$form.'.submit();';
+	        $output.=qq{<a href="$href" $target>$dir</a>/};
+	    } else {
+	        $output.=qq{<a href="$href_path" $target>$dir</a>/};
 	    }
-            my $linkpath = &Apache::loncommon::escape_single($path);
-            if ($form) {
-		$linkpath=
-                    qq{javascript:$form.action='$linkpath';$form.submit();};
-            }
-	    $output.=qq{<a href="$linkpath" $target>$dir</a>/};
 	}
     } else {
-	$output.=$uri;
+	foreach my $dir (split('/',$uri)) {
+            if (! $dir) { next; }
+	    $output.=$dir.'/';
+	}
     }
-    unless ($uri=~/\/$/) { $output=~s/\/$//; }
+    if ($uri !~ m|/$|) { $output=~s|/$||; }
     return $output.'</font>'.($noformat?'':'</b></tt><br />');
 }
 
@@ -1038,17 +1204,19 @@ sub spellheader {
 
     my $nothing=&javascript_nothing();
     return (<<ENDCHECK);
-<script type="text/javascript"> 
+<script type="text/javascript">
+// <![CDATA[
 //<!-- BEGIN LON-CAPA Internal
 var checkwin;
 
 function spellcheckerwindow(string) {
     var esc_string = string.replace(/\"/g,'&quot;');
     checkwin=window.open($nothing,'spellcheckwin','height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
-    checkwin.document.writeln('$start_page<form name="spellcheckform" action="/adm/spellcheck" method="post"><input type="hidden" name="text" value="'+esc_string+'" /><\/form>$end_page');
+    checkwin.document.writeln('$start_page<form name="spellcheckform" action="/adm/spellcheck" method="post"><input type="hidden" name="text" value="'+esc_string+'" /><\\/form>$end_page');
     checkwin.document.close();
 }
 // END LON-CAPA Internal -->
+// ]]>
 </script>
 ENDCHECK
 }
@@ -1082,45 +1250,13 @@ ENDLINK
 }
 
 sub htmlareaheaders {
-    if (&htmlareablocked()) { return ''; }
-    unless (&htmlareabrowser()) { return ''; }
-    my $lang='en';
-    if (&mt('htmlarea_lang') ne 'htmlarea_lang') {
-	$lang=&mt('htmlarea_lang');
-    }
+    return if (&htmlareablocked());
+    return if (!&htmlareabrowser());
     return (<<ENDHEADERS);
-<script type="text/javascript">
-_editor_url='/htmlarea/';
-_editor_lang='$lang';
-</script>
-<script type="text/javascript" src="/htmlarea/htmlarea.js"></script>
+<script type="text/javascript" src="/fckeditor/fckeditor.js"></script>
 ENDHEADERS
 }
 
-# ------------------------------------------------- Activate additional buttons
-
-sub htmlareaaddbuttons {
-    if (&htmlareablocked()) { return ''; }
-    unless (&htmlareabrowser()) { return ''; }
-    return (<<ENDADDBUTTON);
-    var config=new HTMLArea.Config();
-    config.registerButton('ed_math','LaTeX Inline',
-			  '/htmlarea/images/ed_math.gif',false,
-			    function(editor,id) {
-			      editor.surroundHTML('&nbsp;<m>\$','\$</m>&nbsp;');
-			    }
-			  );
-    config.registerButton('ed_math_eqn','LaTeX Equation',
-			  '/htmlarea/images/ed_math_eqn.gif',false,
-			    function(editor,id) {
-			      editor.surroundHTML(
-				     '&nbsp;\\n<center><m>\\\\[','\\\\]</m></center>\\n&nbsp;');
-			    }
-			  );
-    config.toolbar.push(['ed_math','ed_math_eqn']);
-ENDADDBUTTON
-}
-
 # ----------------------------------------------------------------- Preferences
 
 sub disablelink {
@@ -1139,18 +1275,38 @@ sub enablelink {
     return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=on&returnurl=','<>&"').&escape($ENV{'REQUEST_URI'}).'">'.&mt('Enable WYSIWYG Editor').'</a>';
 }
 
+# ------------------------------------------------- lang to use in html editor
+sub htmlarea_lang {
+    my $lang='en';
+    if (&mt('htmlarea_lang') ne 'htmlarea_lang') {
+	$lang=&mt('htmlarea_lang');
+    }
+    return $lang;
+}
+
 # ----------------------------------------- Script to activate only some fields
 
 sub htmlareaselectactive {
     my @fields=@_;
     unless (&htmlareabrowser()) { return ''; }
     if (&htmlareablocked()) { return '<br />'.&enablelink(@fields); }
-    my $output='<script type="text/javascript" defer="1">'.
-	&htmlareaaddbuttons();
-    foreach(@fields) {
-	$output.="\nHTMLArea.replace('$_',config);";
-    }
-    $output.="\nwindow.status='Activated Editfields';\n</script><br />".
+    my $output='<script type="text/javascript" defer="defer">'.
+               '// <![CDATA[';
+    my $lang = &htmlarea_lang();
+    foreach my $field (@fields) {
+	$output.="
+{
+    var oFCKeditor = new FCKeditor('$field');
+    oFCKeditor.Config['CustomConfigurationsPath'] = 
+	'/fckeditor/loncapaconfig.js';    
+    oFCKeditor.ReplaceTextarea();
+    oFCKeditor.Config['AutoDetectLanguage'] = false;
+    oFCKeditor.Config['DefaultLanguage'] = '$lang';
+}";
+    }
+    $output.="\nwindow.status='Activated Editfields';\n".
+             '// ]]>'."\n".
+             '</script><br />'.
 	&disablelink(@fields);
     return $output;
 }
@@ -1201,7 +1357,8 @@ Pushes a breadcrumb on the stack of crum
 
 input: $breadcrumb, a hash reference.  The keys 'href','title', and 'text'
 are required.  If present the keys 'faq' and 'bug' will be used to provide
-links to the FAQ and bug sites.
+links to the FAQ and bug sites. If the key 'no_mt' is present the 'title' 
+and 'text' values won't be sent through &mt()
 
 returns: nothing    
 
@@ -1213,7 +1370,7 @@ returns: nothing
     my @Crumbs;
     
     sub breadcrumbs {
-        my ($component,$component_help,$menulink,$helplink,$css_class) = @_;
+        my ($component,$component_help,$menulink,$helplink,$css_class,$no_mt) = @_;
         #
 	$css_class ||= 'LC_breadcrumbs';
         my $Str = "\n".'<table class="'.$css_class.'"><tr><td>';
@@ -1222,6 +1379,8 @@ returns: nothing
         my $faq = '';
         my $bug = '';
 	my $help='';
+	# Crumb Symbol
+	my $crumbsymbol = '&raquo;&nbsp;';
         # The last breadcrumb does not have a link, so handle it separately.
         my $last = pop(@Crumbs);
         #
@@ -1229,20 +1388,24 @@ returns: nothing
 	if (!defined($menulink)) { $menulink=1; }
         if ($menulink) {
             my $description = 'Menu';
-            if (exists($env{'request.course.id'}) && 
-                $env{'request.course.id'} ne '') {
+            my $no_mt_descr = 0;
+            if ((exists($env{'request.course.id'})) &&
+                ($env{'request.course.id'} ne '') &&
+                ($env{'course.'.$env{'request.course.id'}.'.description'} ne '')) {
                 $description = 
                     $env{'course.'.$env{'request.course.id'}.'.description'};
+                $no_mt_descr = 1;
             }
             unshift(@Crumbs,{
                     href   =>'/adm/menu',
                     title  =>'Go to main menu',
                     target =>'_top',
                     text   =>$description,
+                    no_mt  =>$no_mt_descr,
                 });
         }
         my $links .= 
-            join('-&gt;',
+            join($crumbsymbol,
                  map {
                      $faq = $_->{'faq'} if (exists($_->{'faq'}));
                      $bug = $_->{'bug'} if (exists($_->{'bug'}));
@@ -1251,22 +1414,31 @@ returns: nothing
                      if (defined($_->{'target'}) && $_->{'target'} ne '') {
                          $result .= 'target="'.$_->{'target'}.'" ';
                      }
-                     $result .='title="'.&mt($_->{'title'}).'">'.
-                         &mt($_->{'text'}).'</a>';
+		     if ($_->{'no_mt'}) {
+			 $result .='title="'.$_->{'title'}.'">'.
+			     $_->{'text'}.'</a>';
+		     } else {
+			 $result .='title="'.&mt($_->{'title'}).'">'.
+			     &mt($_->{'text'}).'</a>';
+		     }
                      $result;
                      } @Crumbs
                  );
-        $links .= '-&gt;' if ($links ne '');
-        $links .= '<b>'.&mt($last->{'text'}).'</b>';
+        $links .= $crumbsymbol if ($links ne '');
+	if ($last->{'no_mt'}) {
+	    $links .= '<b>'.$last->{'text'}.'</b>';
+	} else {
+	    $links .= '<b>'.&mt($last->{'text'}).'</b>';
+	}
         #
         my $icons = '';
         $faq = $last->{'faq'} if (exists($last->{'faq'}));
         $bug = $last->{'bug'} if (exists($last->{'bug'}));
         $help = $last->{'help'} if (exists($last->{'help'}));
         $component_help=($component_help?$component_help:$help);
-        if ($faq ne '') {
-            $icons .= &Apache::loncommon::help_open_faq($faq);
-        }
+#        if ($faq ne '') {
+#            $icons .= &Apache::loncommon::help_open_faq($faq);
+#        }
 #        if ($bug ne '') {
 #            $icons .= &Apache::loncommon::help_open_bug($bug);
 #        }
@@ -1279,8 +1451,12 @@ returns: nothing
         $Str .= $links.'</td>';
         #
         if (defined($component)) {
-            $Str .= '<td class="'.$css_class.'_component">'.
-                &mt($component);
+            $Str .= '<td class="'.$css_class.'_component">';
+            if ($no_mt) {
+                $Str .= $component;
+            } else {
+                $Str .= &mt($component);
+            }
 	    if ($icons ne '') {
 		$Str .= '&nbsp;'.$icons;
 	    }
@@ -1319,8 +1495,8 @@ returns: nothing
 # row1
 # row2
 # row3   ... etc.
-# &submit_row(0
-# &end_pickbox()
+# &submit_row()
+# &end_pick_box()
 #
 # where row1, row 2 etc. are chosen from &role_select_row,&course_select_row,
 # &status_select_row and &email_default_row
@@ -1361,6 +1537,9 @@ returns: nothing
 # routines, but can also be called directly to start and end rows which have 
 # needs that are not accommodated by the *_select_row() routines.    
 
+{ # Start: row_count block for pick_box
+my @row_count;
+
 sub start_pick_box {
     my ($css_class) = @_;
     if (defined($css_class)) {
@@ -1368,6 +1547,7 @@ sub start_pick_box {
     } else {
 	$css_class= 'class="LC_pick_box"';
     }
+    unshift(@row_count,0);
     my $output = <<"END";
  <table $css_class>
 END
@@ -1375,26 +1555,38 @@ END
 }
 
 sub end_pick_box {
+    shift(@row_count);
     my $output = <<"END";
        </table>
 END
     return $output;
 }
 
+sub row_headline {
+    my $output = <<"END";
+           <tr><td colspan="2">
+END
+    return $output;
+}
+
 sub row_title {
     my ($title,$css_title_class,$css_value_class) = @_;
+    $row_count[0]++;
+    my $css_class = ($row_count[0] % 2)?'LC_odd_row':'LC_even_row';
     $css_title_class ||= 'LC_pick_box_title';
     $css_title_class = 'class="'.$css_title_class.'"';
 
     $css_value_class ||= 'LC_pick_box_value';
-    $css_value_class = 'class="'.$css_value_class.'"';
 
+    if ($title ne '') {
+        $title .= ':';
+    }
     my $output = <<"ENDONE";
            <tr class="LC_pick_box_row">
             <td $css_title_class>
-	       $title:
+	       $title
             </td>
-            <td $css_value_class>
+            <td class="$css_value_class $css_class">
 ENDONE
     return $output;
 }
@@ -1416,22 +1608,44 @@ ENDTWO
     return $output;
 }
 
+} # End: row_count block for pick_box
+
+
 sub role_select_row {
-    my ($roles,$title,$css_class) = @_;
+    my ($roles,$title,$css_class,$show_separate_custom,$cdom,$cnum) = @_;
+    my $crstype = 'Course';
+    if ($cdom ne '' && $cnum ne '') {
+        $crstype = &Apache::loncommon::course_type($cdom.'_'.$cnum);
+    }
     my $output;
     if (defined($title)) {
         $output = &row_title($title,$css_class);
     }
     $output .= qq|
-                                  <select name="roles" multiple >\n|;
+                                  <select name="roles" multiple="multiple" >\n|;
     foreach my $role (@$roles) {
         my $plrole;
         if ($role eq 'ow') {
             $plrole = &mt('Course Owner');
+        } elsif ($role eq 'cr') {
+            if ($show_separate_custom) {
+                if ($cdom ne '' && $cnum ne '') {
+                    my %course_customroles = &course_custom_roles($cdom,$cnum);
+                    foreach my $crrole (sort(keys(%course_customroles))) {
+                        my ($plcrrole) = ($crrole =~ m|^cr/[^/]+/[^/]+/(.+)$|);
+                        $output .= '  <option value="'.$crrole.'">'.$plcrrole.
+                                   '</option>';
+                    }
+                }
+            } else {
+                $plrole = &mt('Custom Role');
+            }
         } else {
-            $plrole=&Apache::lonnet::plaintext($role);
+            $plrole=&Apache::lonnet::plaintext($role,$crstype);
+        }
+        if (($role ne 'cr') || (!$show_separate_custom)) {
+            $output .= '  <option value="'.$role.'">'.$plrole.'</option>';
         }
-        $output .= '  <option value="'.$role.'">'.$plrole.'</option>';
     }
     $output .= qq|                </select>\n|;
     if (defined($title)) {
@@ -1442,10 +1656,18 @@ sub role_select_row {
 
 sub course_select_row {
     my ($title,$formname,$totcodes,$codetitles,$idlist,$idlist_titles,
-	$css_class) = @_;
+	$css_class,$crstype) = @_;
     my $output = &row_title($title,$css_class);
-    $output .= qq|
+    $output .= &course_selection($formname,$totcodes,$codetitles,$idlist,$idlist_titles,$crstype);
+    $output .= &row_closure();
+    return $output;
+}
+
+sub course_selection {
+    my ($formname,$totcodes,$codetitles,$idlist,$idlist_titles,$crstype) = @_;
+    my $output = qq|
 <script type="text/javascript">
+// <![CDATA[
     function coursePick (formname) {
         for  (var i=0; i<formname.coursepick.length; i++) {
             if (formname.coursepick[i].value == 'category') {
@@ -1468,11 +1690,22 @@ sub course_select_row {
             formname.courselist = '';
         }
     }
+// ]]>
 </script>
     |;
+
+    my ($allcrs,$pickspec);
+    if ($crstype eq 'Community') {
+        $allcrs = &mt('All communities');
+        $pickspec = &mt('Pick specific communities:');
+    } else {
+        $allcrs = &mt('All courses');
+        $pickspec = &mt('Pick specific course(s):');
+    }
+
     my $courseform='<b>'.&Apache::loncommon::selectcourse_link
-                     ($formname,'pickcourse','pickdomain','coursedesc','',1).'</b>';
-        $output .= '<input type="radio" name="coursepick" value="all" onclick="coursePick(this.form)" />'.&mt('All courses').'<br />';
+                     ($formname,'pickcourse','pickdomain','coursedesc','',1,$crstype).'</b>';
+        $output .= '<input type="radio" name="coursepick" value="all" onclick="coursePick(this.form)" />'.$allcrs.'<br />';
     if ($totcodes > 0) {
         my $numtitles = @$codetitles;
         if ($numtitles > 0) {
@@ -1517,8 +1750,7 @@ sub course_select_row {
             $output .= '</tr></table><br />';
         }
     }
-    $output .= '<input type="radio" name="coursepick" value="specific" onclick="coursePick(this.form);opencrsbrowser('."'".$formname."'".','."'".'dccourse'."'".','."'".'dcdomain'."'".','."'".'coursedesc'."','','1'".')" />'.&mt('Pick specific course(s):').' '.$courseform.'&nbsp;&nbsp;<input type="text" value="0" size="4" name="coursetotal" /><input type="hidden" name="courselist" value="" />selected.<br />'."\n";
-    $output .= &row_closure();
+    $output .= '<input type="radio" name="coursepick" value="specific" onclick="coursePick(this.form);opencrsbrowser('."'".$formname."','dccourse','dcdomain','coursedesc','','1'".')" />'.$pickspec.' '.$courseform.'&nbsp;&nbsp;<input type="text" value="0" size="4" name="coursetotal" /><input type="hidden" name="courselist" value="" />selected.<br />'."\n";
     return $output;
 }
 
@@ -1529,7 +1761,7 @@ sub status_select_row {
         $output = &row_title($title,$css_class,'LC_pick_box_select');
     }
     $output .= qq|
-                                    <select name="types" multiple>\n|;
+                                    <select name="types" multiple="multiple">\n|;
     foreach my $status_type (sort(keys(%{$types}))) {
         $output .= '  <option value="'.$status_type.'">'.$$types{$status_type}.'</option>';
     }
@@ -1543,7 +1775,6 @@ sub status_select_row {
 sub email_default_row {
     my ($authtypes,$title,$descrip,$css_class) = @_;
     my $output = &row_title($title,$css_class);
-    my @rowcols = ('#eeeeee','#dddddd');
     $output .= $descrip.
 	&Apache::loncommon::start_data_table().
 	&Apache::loncommon::start_data_table_header_row().
@@ -1584,6 +1815,42 @@ sub submit_row {
     return $output;
 }
 
+sub course_custom_roles {
+    my ($cdom,$cnum) = @_;
+    my %returnhash=();
+    my %coursepersonnel=&Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
+    foreach my $person (sort(keys(%coursepersonnel))) {
+        my ($role) = ($person =~ /^([^:]+):/);
+        my ($end,$start) = split(/:/,$coursepersonnel{$person});
+        if ($end == -1 && $start == -1) {
+            next;
+        }
+        if ($role =~ m|^cr/[^/]+/[^/]+/[^/]|) {
+            $returnhash{$role} ++;
+        }
+    }
+    return %returnhash;
+}
+
+
+##############################################
+##############################################
+
+# topic_bar
+#
+# Generates a div containing a numbered (static image) followed by a title
+# with a background color defined in the corresponding CSS: LC_topic_bar
+#
+sub topic_bar {
+    my ($imgnum,$title) = @_;
+    return '
+<div class="LC_topic_bar">
+    <img alt="'.&mt('Step [_1]',$imgnum).
+              '" src="/res/adm/pages/bl_step'.$imgnum.'.gif" />&nbsp;'.$title.'
+</div>
+';
+}
+
 ##############################################
 ##############################################
                                                                              
@@ -1716,72 +1983,74 @@ sub set_form_elements {
             $values{$name}[$i] =~ s/([\r\n\f]+)/\\n/g;
             $values{$name}[$i] =~ s/"/\\"/g;
         }
-        if ($$elements{$name} eq 'text') {
+        if (($$elements{$name} eq 'text') || ($$elements{$name} eq 'hidden')) {
             my $numvalues = @{$values{$name}};
             if ($numvalues > 1) {
                 my $valuestring = join('","',@{$values{$name}});
                 $output .= qq|
   var textvalues = new Array ("$valuestring");
-  var total = courseForm.$name.length;
+  var total = courseForm.elements['$name'].length;
   if (total > $numvalues) {
       total = $numvalues;
   }    
   for (var i=0; i<total; i++) {
-      courseForm.$name\[i].value = textvalues[i];
+      courseForm.elements['$name']\[i].value = textvalues[i];
   }
 |;
             } else {
                 $output .= qq|
-  courseForm.$name.value = "$values{$name}[0]";
+  courseForm.elements['$name'].value = "$values{$name}[0]";
 |;
             }
         } else {
             $output .=  qq|
-  var elementLength = courseForm.$name.length;
+  var elementLength = courseForm.elements['$name'].length;
   if (elementLength==undefined) {
 |;
             foreach my $value (@{$values{$name}}) {
                 if ($$elements{$name} eq 'selectbox') {
                     $output .=  qq|
-      if (courseForm.$name.options[0].value == "$value") {
-          courseForm.$name.options[0].selected = true;
+      if (courseForm.elements['$name'].options[0].value == "$value") {
+          courseForm.elements['$name'].options[0].selected = true;
       }|;
                 } elsif (($$elements{$name} eq 'radio') ||
                          ($$elements{$name} eq 'checkbox')) {
                     $output .= qq|
-      if (courseForm.$name.value == "$value") {
-          courseForm.$name.checked = true;
+      if (courseForm.elements['$name'].value == "$value") {
+          courseForm.elements['$name'].checked = true;
+      } else {
+          courseForm.elements['$name'].checked = false;
       }|;
                 }
             }
             $output .= qq|
   }
   else {
-      for (var i=0; i<courseForm.$name.length; i++) {
+      for (var i=0; i<courseForm.elements['$name'].length; i++) {
 |;
             if ($$elements{$name} eq 'selectbox') {
                 $output .=  qq|
-          courseForm.$name.options[i].selected = false;|;
+          courseForm.elements['$name'].options[i].selected = false;|;
             } elsif (($$elements{$name} eq 'radio') || 
                      ($$elements{$name} eq 'checkbox')) {
                 $output .= qq|
-          courseForm.$name\[i].checked = false;|; 
+          courseForm.elements['$name']\[i].checked = false;|; 
             }
             $output .= qq|
       }
-      for (var j=0; j<courseForm.$name.length; j++) {
+      for (var j=0; j<courseForm.elements['$name'].length; j++) {
 |;
             foreach my $value (@{$values{$name}}) {
                 if ($$elements{$name} eq 'selectbox') {
                     $output .=  qq|
-          if (courseForm.$name.options[j].value == "$value") {
-              courseForm.$name.options[j].selected = true;
+          if (courseForm.elements['$name'].options[j].value == "$value") {
+              courseForm.elements['$name'].options[j].selected = true;
           }|;
                 } elsif (($$elements{$name} eq 'radio') ||
                          ($$elements{$name} eq 'checkbox')) { 
                       $output .= qq|
-          if (courseForm.$name\[j].value == "$value") {
-              courseForm.$name\[j].checked = true;
+          if (courseForm.elements['$name']\[j].value == "$value") {
+              courseForm.elements['$name']\[j].checked = true;
           }|;
                 }
             }
@@ -1792,10 +2061,50 @@ sub set_form_elements {
         }
     }
     $output .= "
+    return;
 }\n";
     return $output;
 }
 
+##############################################
+##############################################
+
+# javascript_valid_email
+#
+# Generates javascript to validate an e-mail address.
+# Returns a javascript function which accetps a form field as argumnent, and
+# returns false if field.value does not satisfy two regular expression matches
+# for a valid e-mail address.  Backwards compatible with old browsers without
+# support for javascript RegExp (just checks for @ in field.value in this case). 
+
+sub javascript_valid_email {
+    my $scripttag .= <<'END';
+function validmail(field) {
+    var str = field.value;
+    if (window.RegExp) {
+        var reg1str = "(@.*@)|(\\.\\.)|(@\\.)|(\\.@)|(^\\.)";
+        var reg2str = "^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$"; //"
+        var reg1 = new RegExp(reg1str);
+        var reg2 = new RegExp(reg2str);
+        if (!reg1.test(str) && reg2.test(str)) {
+            return true;
+        }
+        return false;
+    }
+    else
+    {
+        if(str.indexOf("@") >= 0) {
+            return true;
+        }
+        return false;
+    }
+}
+END
+    return $scripttag;
+}
+
+
+
 1;
 
 __END__