--- loncom/interface/lonhtmlcommon.pm	2004/03/01 16:19:45	1.58
+++ loncom/interface/lonhtmlcommon.pm	2004/04/19 16:43:03	1.66
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common html routines
 #
-# $Id: lonhtmlcommon.pm,v 1.58 2004/03/01 16:19:45 www Exp $
+# $Id: lonhtmlcommon.pm,v 1.66 2004/04/19 16:43:03 matthew Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -201,6 +201,13 @@ Also, to be explicit, a value of 'now' a
 Additional html/javascript to be associated with each element in
 the date_setter.  See lonparmset for example usage.
 
+=item $includeempty 
+
+=item $state
+
+Specifies the initial state of the form elements.  Either 'disabled' or empty.
+Defaults to empty, which indiciates the form elements are not disabled. 
+
 =back
 
 Bugs
@@ -212,7 +219,10 @@ The method used to restrict user input w
 ##############################################
 ##############################################
 sub date_setter {
-    my ($formname,$dname,$currentvalue,$special,$includeempty) = @_;
+    my ($formname,$dname,$currentvalue,$special,$includeempty,$state) = @_;
+    if (! defined($state) || $state ne 'disabled') {
+        $state = '';
+    }
     if (! defined($currentvalue) || $currentvalue eq 'now') {
 	unless ($includeempty) {
 	    $currentvalue = time;
@@ -221,7 +231,7 @@ sub date_setter {
 	}
     }
     # other potentially useful values:     wkday,yrday,is_daylight_savings
-    my ($sec,$min,$hour,$mday,$month,$year)=('','','','','','');
+    my ($sec,$min,$hour,$mday,$month,$year)=('','',undef,'','','');
     if ($currentvalue) {
 	($sec,$min,$hour,$mday,$month,$year,undef,undef,undef) = 
 	    localtime($currentvalue);
@@ -261,18 +271,39 @@ sub date_setter {
         }
     }
 
+    function $dname\_disable() {
+        document.$formname.$dname\_month.disabled=true;
+        document.$formname.$dname\_day.disabled=true;
+        document.$formname.$dname\_year.disabled=true;
+        document.$formname.$dname\_hour.disabled=true;
+        document.$formname.$dname\_minute.disabled=true;
+        document.$formname.$dname\_second.disabled=true;
+    }
+
+    function $dname\_enable() {
+        document.$formname.$dname\_month.disabled=false;
+        document.$formname.$dname\_day.disabled=false;
+        document.$formname.$dname\_year.disabled=false;
+        document.$formname.$dname\_hour.disabled=false;
+        document.$formname.$dname\_minute.disabled=false;
+        document.$formname.$dname\_second.disabled=false;        
+    }
+
     function $dname\_opencalendar() {
-       var calwin=window.open(
+        if (! document.$formname.$dname\_month.disabled) {
+            var calwin=window.open(
 "/adm/announcements?pickdate=yes&formname=$formname&element=$dname&month="+
 document.$formname.$dname\_month.value+"&year="+
 document.$formname.$dname\_year.value,
              "LONCAPAcal",
               "height=350,width=350,scrollbars=yes,resizable=yes,menubar=no");
+        }
 
     }
 </script>
 ENDJS
     $result .= "  <nobr><select name=\"$dname\_month\" ".$special.' '.
+        $state.' '.
         "onChange=\"javascript:$dname\_checkday()\" >\n";
     my @Months = qw/January February  March     April   May      June 
                     July    August    September October November December/;
@@ -285,18 +316,18 @@ ENDJS
         $result .= "> ".&mt($Months[$m])." </option>\n";
     }
     $result .= "  </select>\n";
-    $result .= "  <input type=\"text\" name=\"$dname\_day\" ".
+    $result .= "  <input type=\"text\" name=\"$dname\_day\" ".$state.' '.
             "value=\"$mday\" size=\"3\" ".$special.' '.
             "onChange=\"javascript:$dname\_checkday()\" />\n";
-    $result .= "  <input type=\"year\" name=\"$dname\_year\" ".
+    $result .= "  <input type=\"year\" name=\"$dname\_year\" ".$state.' '.
             "value=\"$year\" size=\"5\" ".$special.' '.
             "onChange=\"javascript:$dname\_checkday()\" />\n";
     $result .= "&nbsp;&nbsp;";
-    $result .= "  <select name=\"$dname\_hour\" ".$special." >\n";
+    $result .= "  <select name=\"$dname\_hour\" ".$special." ".$state.' '.">\n";
     if ($includeempty) { $result.="<option value=''></option>"; }
     for (my $h = 0;$h<24;$h++) {
         $result .= "      <option value=\"$h\" ";
-        $result .= "selected " if ($hour == $h);
+        $result .= "selected " if (defined($hour) && $hour == $h);
         $result .= "> ";
 	my $timest='';
         if ($h == 0) {
@@ -313,8 +344,10 @@ ENDJS
     } 
     $result .= "  </select>\n";
     $result .= "  <input type=\"text\" name=\"$dname\_minute\" ".$special.' '.
+        $state.' '.
         "value=\"$min\" size=\"3\" /> m\n";
     $result .= "  <input type=\"text\" name=\"$dname\_second\" ".$special.' '.
+        $state.' '.
         "value=\"$sec\" size=\"3\" /> s\n";
     $result .= "<a href=\"javascript:$dname\_opencalendar()\">".
     &mt('Select Date')."</a></nobr>\n<!-- end $dname date setting form -->\n";
@@ -359,12 +392,14 @@ sub get_date_from_form {
         if (($tmpsec =~ /^\d+$/) && ($tmpsec >= 0) && ($tmpsec < 60)) {
             $sec = $tmpsec;
         }
+	if (!defined($tmpsec) || $tmpsec eq '') { $sec = 0; }
     }
     if (defined($ENV{'form.'.$dname.'_minute'})) {
         my $tmpmin = $ENV{'form.'.$dname.'_minute'};
         if (($tmpmin =~ /^\d+$/) && ($tmpmin >= 0) && ($tmpmin < 60)) {
             $min = $tmpmin;
         }
+	if (!defined($tmpmin) || $tmpmin eq '') { $min = 0; }
     }
     if (defined($ENV{'form.'.$dname.'_hour'})) {
         my $tmphour = $ENV{'form.'.$dname.'_hour'};
@@ -781,8 +816,11 @@ sub r_print {
 # ------------------------------------------------------- Puts directory header
 
 sub crumbs {
-    my ($uri,$target,$prefix,$form)=@_;
-    my $output='<br /><tt><b><font size="+2">'.$prefix.'/';
+    my ($uri,$target,$prefix,$form,$size)=@_;
+    if (! defined($size)) {
+        $size = '+2';
+    }
+    my $output='<br /><tt><b><font size="'.$size.'">'.$prefix.'/';
     if ($ENV{'user.adv'}) {
 	my $path=$prefix.'/';
 	foreach (split('/',$uri)) {
@@ -805,9 +843,12 @@ sub crumbs {
 # ------------------------------------------------- Output headers for HTMLArea
 
 sub htmlareaheaders {
-    unless (&htmlareabrowser()) { return ''; }
+    unless (&htmlareablocked()) { return ''; }
     my $lang='en';
     return (<<ENDHEADERS);
+<script type="text/javascript">
+    _editor_url="/htmlarea/";
+</script>
 <script type="text/javascript" src="/htmlarea/htmlarea.js"></script>
 <script type="text/javascript" src="/htmlarea/lang/$lang.js"></script>
 <script type="text/javascript" src="/htmlarea/dialog.js"></script>
@@ -820,7 +861,7 @@ ENDHEADERS
 # ---------------------------------------------------------- Script to activate
 
 sub htmlareaactive {
-    unless (&htmlareabrowser()) { return ''; }
+    unless (&htmlareablocked()) { return ''; }
     return (<<ENDSCRIPT);
 <script type="text/javascript" defer="1">
     HTMLArea.replaceAll();
@@ -828,6 +869,13 @@ sub htmlareaactive {
 ENDSCRIPT
 }
 
+# --------------------------------------------------------------------- Blocked
+
+sub htmlareablocked {
+    unless (&htmlareabrowser()) { return ''; }
+    return 1;
+}
+
 # ---------------------------------------- Browser capable of running HTMLArea?
 
 sub htmlareabrowser {
@@ -853,6 +901,9 @@ All inputs can be undef without problems
 Inputs: $color (the background color of the table returned),
         $component (the large text on the right side of the table),
         $component_help
+        $function (role to get colors from)
+        $domain   (domian of role)
+        $menulink (boolean, controls whether to include a link to /adm/menu)
 
 Returns a string containing breadcrumbs for the current page.
 
@@ -878,7 +929,8 @@ returns: nothing
     my @Crumbs;
     
     sub breadcrumbs {
-        my ($color,$component,$component_help,$function,$domain) = @_;
+        my ($color,$component,$component_help,$function,$domain,$menulink) =
+	    @_;
         if (! defined($color)) {
             if (! defined($function)) {
                 $function = &Apache::loncommon::get_users_function();
@@ -895,11 +947,12 @@ returns: nothing
         # Make the faq and bug data cascade
         my $faq = '';
         my $bug = '';
-        # The last breadcrumb does not have a link, so handle it seperately.
+        # The last breadcrumb does not have a link, so handle it separately.
         my $last = pop(@Crumbs);
         #
         # The first one should be the course, I guess.
-        if (exists($ENV{'request.course.id'})) {
+	if (!defined($menulink)) { $menulink=1; }
+        if ($menulink && exists($ENV{'request.course.id'}) && $ENV{'request.course.id'} ne '') {
             my $cid = $ENV{'request.course.id'};
             unshift(@Crumbs,{
                              href=>'/adm/menu',