--- loncom/homework/hint.pm	2001/10/09 20:45:13	1.20
+++ loncom/homework/hint.pm	2002/03/06 20:39:15	1.27
@@ -1,10 +1,38 @@
+# The LearningOnline Network with CAPA 
+# implements the tags that control the hints
+#
+# $Id: hint.pm,v 1.27 2002/03/06 20:39:15 sakharuk Exp $
+#
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# LON-CAPA is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with LON-CAPA; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# /home/httpd/html/adm/gpl.txt
+#
+# http://www.lon-capa.org/
+#
+
 package Apache::hinttags; 
 
 use strict;
 use Apache::lonnet;
 use capa;
 
-sub BEGIN {
+BEGIN {
   &Apache::lonxml::register('Apache::hinttags',('hintgroup','hintpart','numericalhint'));
 }
 
@@ -30,6 +58,8 @@ sub start_hintgroup {
     if ($skiptoend) {
       &Apache::lonxml::get_all_text("/hintgroup",$$parser[$#$parser]);
     }
+  } elsif ($target eq 'tex') {
+    $result .= '\keephidden{'; 
   }
   @Apache::hint::which=();
   return $result;
@@ -51,6 +81,8 @@ sub end_hintgroup {
     }
   } elsif ($target eq 'edit') {
     $result.=&Apache::edit::end_table();
+  } elsif ($target eq 'tex') {
+    $result .= '}'; 
   }
   @Apache::hint::which=();
   return $result;
@@ -67,7 +99,8 @@ sub start_numericalhint {
     $result.=&Apache::edit::text_arg('Answer:','answer',$token);
     $result.=&Apache::edit::text_arg('Unit:','unit',$token,5);
     $result.=&Apache::edit::text_arg('Format:','format',$token,4);
-    $result.='</td></tr><tr><td colspan="3">';
+    $result.=&Apache::edit::end_row();
+    $result.=&Apache::edit::start_spanning_row();
   } elsif ($target eq 'modified') {
     my $constructtag=
       &Apache::edit::get_new_args($token,$parstack,$safeeval,
@@ -139,9 +172,10 @@ sub start_hintpart {
   } elsif ($target eq 'grade') {
     &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
   } elsif ($target eq 'edit') {
-    $result.= &Apache::edit::tag_start($target,$token,
-				       &Apache::lonxml::description($token));
-    $result.= &Apache::edit::text_arg('On:','on',$token).'</td></tr><tr><td colspan="3">';
+    $result.= &Apache::edit::tag_start($target,$token);
+    $result.= &Apache::edit::text_arg('On:','on',$token);
+    $result.= &Apache::edit::end_row();
+    $result.= &Apache::edit::start_spanning_row();
   } elsif ($target eq 'modified') {
     my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
 						 'on');