--- loncom/interface/groupsort.pm	2003/01/09 22:04:28	1.17
+++ loncom/interface/groupsort.pm	2003/06/13 23:33:38	1.20
@@ -2,7 +2,7 @@
 # The LON-CAPA group sort handler
 # Allows for sorting prior to import into RAT.
 #
-# $Id: groupsort.pm,v 1.17 2003/01/09 22:04:28 www Exp $
+# $Id: groupsort.pm,v 1.20 2003/06/13 23:33:38 albertel Exp $
 # 
 # Copyright Michigan State University Board of Trustees
 #
@@ -27,9 +27,7 @@
 # http://www.lon-capa.org/
 #
 # YEAR=2001
-# 8/7,8/8,10/14,10/15,12/10 Scott Harrison
 # YEAR=2002
-# 1/17 Scott Harrison
 #
 ###
 
@@ -45,7 +43,12 @@ my %hash; # variable to tie to user spec
 my $iconpath; # variable to be accessible to multiple subroutines
 
 sub cleanup {
-   untie(%hash) if (tied(%hash));
+    if (tied(%hash)){
+	&Apache::lonnet::logthis('Cleanup groupsort: hash');
+        unless (untie(%hash)) {
+	    &Apache::lonnet::logthis('Failed cleanup groupsort: hash');
+        }
+    }
 }
 
 # ---------------------------------------------------------------- Main Handler
@@ -328,13 +331,18 @@ END
 	$ctr++;
 	my @file_ext = split(/\./,$key);
 	my $curfext = $file_ext[scalar(@file_ext)-1];
+	my $iconname="unknown.gif";
+	my $embstyle = &Apache::loncommon::fileembstyle($curfext);
+	# The unless conditional that follows is a bit of overkill
+	$iconname = $curfext.".gif" unless
+	    (!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn');
 	$r->print("<tr><td bgcolor='$fileclr'>");
 	$r->print(&movers($clen,$ctr));
 	$r->print(&hidden($ctr-1,$thash{$key},$key));
 	$r->print("</td><td bgcolor='$fileclr'>");
 	$r->print(&select_box($clen,$ctr));
 	$r->print("</td><td bgcolor='$fileclr'>");
-	$r->print("<img src='$iconpath$curfext.gif'>");
+	$r->print("<img src='$iconpath$iconname'>");
 	$r->print("</td><td bgcolor='$fileclr'>");
 	$r->print("$thash{$key}</td><td bgcolor='$fileclr'>\n");
 	$r->print("$key</td></tr>\n");