--- loncom/interface/loncommon.pm	2012/12/04 18:50:33	1.1100
+++ loncom/interface/loncommon.pm	2012/12/07 16:48:19	1.1101
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.1100 2012/12/04 18:50:33 raeburn Exp $
+# $Id: loncommon.pm,v 1.1101 2012/12/07 16:48:19 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -14106,6 +14106,74 @@ sub parse_supplemental_title {
     return $title;
 }
 
+sub symb_to_docspath {
+    my ($symb) = @_;
+    return unless ($symb);
+    my ($mapurl,$id,$resurl) = &Apache::lonnet::decode_symb($symb);
+    if ($resurl=~/\.(sequence|page)$/) {
+        $mapurl=$resurl;
+    } elsif ($resurl eq 'adm/navmaps') {
+        $mapurl=$env{'course.'.$env{'request.course.id'}.'.url'};
+    }
+    my $mapresobj;
+    my $navmap = Apache::lonnavmaps::navmap->new();
+    if (ref($navmap)) {
+        $mapresobj = $navmap->getResourceByUrl($mapurl);
+    }
+    $mapurl=~s{^.*/([^/]+)\.(\w+)$}{$1};
+    my $type=$2;
+    my $path;
+    if (ref($mapresobj)) {
+        my $pcslist = $mapresobj->map_hierarchy();
+        if ($pcslist ne '') {
+            foreach my $pc (split(/,/,$pcslist)) {
+                next if ($pc <= 1);
+                my $res = $navmap->getByMapPc($pc);
+                if (ref($res)) {
+                    my $thisurl = $res->src();
+                    $thisurl=~s{^.*/([^/]+)\.\w+$}{$1};
+                    my $thistitle = $res->title();
+                    $path .= '&'.
+                             &Apache::lonhtmlcommon::entity_encode($thisurl).'&'.
+                             &Apache::lonhtmlcommon::entity_encode($thistitle).
+                             ':'.$res->randompick().
+                             ':'.$res->randomout().
+                             ':'.$res->encrypted().
+                             ':'.$res->randomorder().
+                             ':'.$res->is_page();
+                }
+            }
+        }
+        $path =~ s/^\&//;
+        my $maptitle = $mapresobj->title();
+        if ($mapurl eq 'default') {
+            $maptitle = 'Main Course Documents';
+        }
+        $path .= (($path ne '')? '&' : '').
+                 &Apache::lonhtmlcommon::entity_encode($mapurl).'&'.
+                 &Apache::lonhtmlcommon::entity_encode($maptitle).
+                 ':'.$mapresobj->randompick().
+                 ':'.$mapresobj->randomout().
+                 ':'.$mapresobj->encrypted().
+                 ':'.$mapresobj->randomorder().
+                 ':'.$mapresobj->is_page();
+    } else {
+        my $maptitle = &Apache::lonnet::gettitle($mapurl);
+        my $ispage = (($type eq 'page')? 1 : '');
+        if ($mapurl eq 'default') {
+            $maptitle = 'Main Course Documents';
+        }
+        $path = &Apache::lonhtmlcommon::entity_encode($mapurl).'&'.
+                &Apache::lonhtmlcommon::entity_encode($maptitle).':::::'.$ispage;
+    }
+    unless ($mapurl eq 'default') {
+        $path = 'default&'.
+                &Apache::lonhtmlcommon::entity_encode('Main Course Documents').
+                ':::::&'.$path;
+    }
+    return $path;
+}
+
 sub captcha_display {
     my ($context,$lonhost) = @_;
     my ($output,$error);