--- loncom/interface/lonhtmlcommon.pm	2004/01/15 20:22:47	1.40
+++ loncom/interface/lonhtmlcommon.pm	2004/01/26 19:55:44	1.41
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common html routines
 #
-# $Id: lonhtmlcommon.pm,v 1.40 2004/01/15 20:22:47 www Exp $
+# $Id: lonhtmlcommon.pm,v 1.41 2004/01/26 19:55:44 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -90,6 +90,51 @@ sub authorbombs {
 ##############################################
 ##############################################
 
+sub recent_filename {
+    my $area=shift;
+    return 'nohist_recent_'.&Apache::lonnet::escape($area);
+}
+
+sub store_recent {
+    my ($area,$name,$value)=@_;
+    my $file=&recent_filename($area);
+    my %recent=&Apache::lonnet::dump($file);
+    if (scalar(keys(%recent))>10) {
+# remove oldest value
+	my $oldest=time;
+	my $delkey='';
+	foreach (keys %recent) {
+	    my $thistime=(split(/\&/,$recent{$_}))[0];
+	    if ($thistime<$oldest) {
+		$oldest=$thistime;
+		$delkey=$_;
+	    }
+	}
+	&Apache::lonnet::del($file,[$delkey]);
+    }
+# store new value
+    &Apache::lonnet::put($file,{ $name => 
+				 time.'&'.&Apache::lonnet::escape($value) });
+}
+
+sub select_recent {
+    my ($area,$fieldname,$event)=@_;
+    my %recent=&Apache::lonnet::dump(&recent_filename($area));
+    my $return="\n<select name='$fieldname'".
+	($event?" onChange='$event'":'').
+	">\n<option value=''>--- ".&mt('Recent')." ---</option>";
+    foreach (sort keys %recent) {
+	unless ($_=~/^error\:/) {
+	    $return.="\n<option value='$_'>".
+		&Apache::lonnet::unescape((split(/\&/,$recent{$_}))[1]).
+		'</option>';
+	}
+    }
+    $return.="\n</select>\n";
+    return $return;
+}
+
+
 =pod
 
 =item textbox
@@ -876,14 +921,18 @@ sub Close_PrgWin {
 # ------------------------------------------------------- Puts directory header
 
 sub crumbs {
-    my ($uri,$target,$prefix)=@_;
+    my ($uri,$target,$prefix,$form)=@_;
     my $output='<br /><tt><b><font size="+2">'.$prefix.'/';
     if ($ENV{'user.adv'}) {
 	my $path=$prefix;
 	foreach (split('/',$uri)) {
 	    unless ($_) { next; }
 	    $path.='/'.$_;
-	    $output.='<a href="'.$path.'"'.($target?' target="'.$target.'"':'').'>'.$_.'</a>/';
+	    my $linkpath=$path;
+	    if ($form) {
+		$linkpath="javascript:$form.action='$path';$form.submit();";
+	    }
+	    $output.='<a href="'.$linkpath.'"'.($target?' target="'.$target.'"':'').'>'.$_.'</a>/';
 	}
     } else {
 	$output.=$uri;