--- loncom/interface/domainprefs.pm	2011/10/30 22:19:15	1.158
+++ loncom/interface/domainprefs.pm	2011/11/07 18:21:17	1.159
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler to set domain-wide configuration settings
 #
-# $Id: domainprefs.pm,v 1.158 2011/10/30 22:19:15 raeburn Exp $
+# $Id: domainprefs.pm,v 1.159 2011/11/07 18:21:17 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1058,6 +1058,7 @@ sub print_rolecolors {
 sub display_color_options {
     my ($dom,$confname,$phase,$role,$itemcount,$choices,$is_custom,$defaults,$designs,
         $images,$bgs,$links,$alt_text,$rowtotal,$logintext) = @_;
+    my $londocroot = $Apache::lonnet::perlvar{'lonDocRoot'};
     my $css_class = $itemcount%2?' class="LC_odd_row"':'';
     my $datatable = '<tr'.$css_class.'>'.
         '<td>'.$choices->{'font'}.'</td>';
@@ -1135,11 +1136,11 @@ sub display_color_options {
                 $showfile = $imgfile;
                 my $imgdir = $1;
                 my $filename = $2;
-                if (-e "/home/httpd/html/$imgdir/tn-".$filename) {
+                if (-e "$londocroot/$imgdir/tn-".$filename) {
                     $showfile = "/$imgdir/tn-".$filename;
                 } else {
-                    my $input = "/home/httpd/html".$imgfile;
-                    my $output = '/home/httpd/html/'.$imgdir.'/tn-'.$filename;
+                    my $input = $londocroot.$imgfile;
+                    my $output = "$londocroot/$imgdir/tn-".$filename;
                     if (!-e $output) {
                         my ($width,$height) = &thumb_dimensions();
                         my ($fullwidth,$fullheight) = &check_dimensions($input);
@@ -1147,7 +1148,7 @@ sub display_color_options {
                             if ($fullwidth > $width && $fullheight > $height) { 
                                 my $size = $width.'x'.$height;
                                 system("convert -sample $size $input $output");
-                                $showfile = '/'.$imgdir.'/tn-'.$filename;
+                                $showfile = "/$imgdir/tn-".$filename;
                             }
                         }
                     }