--- loncom/xml/londefdef.pm	2006/03/29 23:00:51	1.302.2.5
+++ loncom/xml/londefdef.pm	2006/02/05 18:32:40	1.319
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Tags Default Definition Module 
 #
-# $Id: londefdef.pm,v 1.302.2.5 2006/03/29 23:00:51 albertel Exp $
+# $Id: londefdef.pm,v 1.319 2006/02/05 18:32:40 albertel Exp $
 # 
 #
 # Copyright Michigan State University Board of Trustees
@@ -68,7 +68,6 @@ BEGIN {
 #    for ($row =0; $row <= $lastrow; $row++ ) {
 #	my $text = Dumper($Apache::londefdef::table[$row]);
 #	&Apache::lonnet::logthis("table [ $row ]".$text);
-#
 #    }
 #}
 sub initialize_londefdef {
@@ -106,11 +105,21 @@ sub start_m {
 	    $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
 	    #&Apache::lonxml::debug("M is evaulated to:$inside:");
 	}
+	my $tex = $inside;
 	my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
 	$currentstring = &Apache::lontexconvert::converted(\$inside,$display);
 	if ($Apache::lontexconvert::errorstring) {
-	    &Apache::lonxml::warning("tth error: ".
-				     $Apache::lontexconvert::errorstring);
+	    my $errormsg='<pre>'.&HTML::Entities::encode($Apache::lontexconvert::errorstring,'<>&"').'</pre> occured while attempting to convert this TeX: <pre>';
+	    $tex = &HTML::Entities::encode($tex,'<>&"');
+	    my ($linenumber) =
+		($Apache::lontexconvert::errorstring =~ /Line (\d+)/);
+	    if (defined($linenumber)) {
+		my @tex=split("\n",$tex);
+		$tex[$linenumber]='<b><font color="red">'.
+		    $tex[$linenumber].'</font></b>';
+		$tex=join("\n",@tex);
+	    }
+	    &Apache::lonxml::warning($errormsg.$tex.'</pre>');
 	    $Apache::lontexconvert::errorstring='';
 	}
 	#&Apache::lonxml::debug("M is ends with:$currentstring:");
@@ -146,7 +155,7 @@ sub end_m {
 sub start_tthoption {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
     my $result;
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser,
 						   $style);
 	$inside=~s/^\s*//;
@@ -174,11 +183,12 @@ sub start_html {
     if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) {
 	$currentstring = &Apache::lonxml::xmlbegin();
     } elsif ($target eq 'tex') {
-	$currentstring .= '\documentclass[letterpaper]{article}';
+	$currentstring .= '\documentclass[letterpaper,twoside]{article}';
 	if (($env{'form.latex_type'}=~'batchmode') ||
             (!$env{'request.role.adv'})) {$currentstring .='\batchmode';} 
 	$currentstring .= '\newcommand{\keephidden}[1]{}'.
                           '\renewcommand{\deg}{$^{\circ}$}'.
+			  '\usepackage{multirow}'.
                           '\usepackage{longtable}'.
                           '\usepackage{textcomp}'.
                           '\usepackage{makeidx}'.
@@ -201,7 +211,7 @@ sub start_html {
 sub end_html {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = '</html>';
     }
     return $currentstring;
@@ -211,7 +221,7 @@ sub end_html {
 sub start_head {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4].&Apache::lonxml::fontsettings();
     } 
     return $currentstring;
@@ -220,8 +230,7 @@ sub start_head {
 sub end_head {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if (($target eq 'web'      && $env{'request.state'} eq 'published') ||
-	($target eq 'webgrade' && $env{'request.state'} eq 'published')) {
+    if ($target eq 'web' && $env{'request.state'} eq 'published') {
 	$currentstring = &Apache::lonmenu::registerurl(undef,$target).
 	    $token->[2];    
     } 
@@ -232,7 +241,7 @@ sub end_head {
 sub start_map {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -241,7 +250,7 @@ sub start_map {
 sub end_map {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -251,7 +260,7 @@ sub end_map {
 sub start_select {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     }  elsif ($target eq 'tex') {
 	$Apache::londefdef::select=0;
@@ -262,7 +271,7 @@ sub start_select {
 sub end_select {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -272,7 +281,7 @@ sub end_select {
 sub start_option {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	$Apache::londefdef::select++;
@@ -288,7 +297,7 @@ sub start_option {
 sub end_option {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     }  elsif ($target eq 'tex') {
 	$currentstring='}';
@@ -300,7 +309,7 @@ sub end_option {
 sub start_input {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -309,7 +318,7 @@ sub start_input {
 sub end_input {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -319,7 +328,7 @@ sub end_input {
 sub start_textarea {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -328,7 +337,7 @@ sub start_textarea {
 sub end_textarea {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -338,7 +347,7 @@ sub end_textarea {
 sub start_form {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -347,7 +356,7 @@ sub start_form {
 sub end_form {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -357,7 +366,7 @@ sub end_form {
 sub start_title {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	$currentstring .= '\keephidden{Title of the document:  ' 
@@ -372,7 +381,7 @@ sub start_title {
 sub end_title {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -388,7 +397,7 @@ sub end_title {
 sub start_meta {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	my $args='';
 	if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
 	if ($args eq '') {
@@ -437,7 +446,7 @@ sub start_meta {
 sub end_meta {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	my $args='';
 	if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
 	if ($args ne '') {
@@ -503,7 +512,7 @@ sub start_body {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
 
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	if ($Apache::lonhomework::parsing_a_problem) {
 	    &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
 	    return '';
@@ -587,7 +596,7 @@ EDITBUTTON
 sub end_body {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# Close off unclosed <p>
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= &Apache::lonxml::xmlend($target,$parser);
     } elsif ($target eq 'tex') {
 	$currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';  
@@ -602,7 +611,7 @@ sub center_correction { return '\vspace*
 sub start_center {
     my ($target,$token,$tagstack) = @_;
     my $currentstring = &end_p();	# Close off any prior para.
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];     
     } elsif ($target eq 'tex') {
 	if (&is_inside_of($tagstack, "table")) {
@@ -616,13 +625,10 @@ sub start_center {
 sub end_center {
     my ($target,$token,$tagstack) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
 	$currentstring = '\end{center}';  
-	if (&is_inside_of($tagstack, "table")) {
-	    #$currentstring .= &center_correction();
-	}
     }
     return $currentstring;
 }
@@ -632,7 +638,7 @@ sub end_center {
 sub start_b {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	&disable_para();
@@ -644,7 +650,7 @@ sub start_b {
 sub end_b {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
 	&enable_para();
@@ -658,7 +664,7 @@ sub end_b {
 sub start_strong {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	&disable_para();
@@ -670,7 +676,7 @@ sub start_strong {
 sub end_strong {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {	
+    if ($target eq 'web') {	
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
 	&enable_para();
@@ -683,7 +689,7 @@ sub end_strong {
 sub start_h1 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# Close off any prior para.
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	my $pre;
@@ -708,7 +714,7 @@ sub start_h1 {
 sub end_h1 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	my $post='\vskip 0 mm ';
@@ -732,7 +738,7 @@ sub end_h1 {
 sub start_h2 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# Close off any prior para.
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	my $pre;
@@ -754,7 +760,7 @@ sub start_h2 {
 sub end_h2 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	my $post='\vskip 0 mm ';
@@ -775,7 +781,7 @@ sub end_h2 {
 sub start_h3 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# Close off any prior para.
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	my $pre;
@@ -797,7 +803,7 @@ sub start_h3 {
 sub end_h3 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	my $post='\vskip 0 mm ';
@@ -818,7 +824,7 @@ sub end_h3 {
 sub start_h4 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# Close off any prior para.
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	my $pre;
@@ -840,7 +846,7 @@ sub start_h4 {
 sub end_h4 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	my $post='\vskip 0 mm ';
@@ -861,7 +867,7 @@ sub end_h4 {
 sub start_h5 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# Close off any prior paras.
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	my $pre;
@@ -883,7 +889,7 @@ sub start_h5 {
 sub end_h5 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	my $post='\vskip 0 mm ';
@@ -904,7 +910,7 @@ sub end_h5 {
 sub start_h6 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# Close off any prior paras.
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	my $pre;
@@ -926,7 +932,7 @@ sub start_h6 {
 sub end_h6 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	my $post='\vskip 0 mm ';
@@ -947,7 +953,7 @@ sub end_h6 {
 sub start_cite {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\textit{';
@@ -958,7 +964,7 @@ sub start_cite {
 sub end_cite {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -970,7 +976,7 @@ sub end_cite {
 sub start_i {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\textit{';
@@ -981,7 +987,7 @@ sub start_i {
 sub end_i {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -993,7 +999,7 @@ sub end_i {
 sub start_address {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\textit{';
@@ -1004,7 +1010,7 @@ sub start_address {
 sub end_address {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -1016,7 +1022,7 @@ sub end_address {
 sub start_dfn {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\textit{';
@@ -1027,7 +1033,7 @@ sub start_dfn {
 sub end_dfn {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -1039,7 +1045,7 @@ sub end_dfn {
 sub start_tt {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\texttt{';
@@ -1050,7 +1056,7 @@ sub start_tt {
 sub end_tt {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -1062,7 +1068,7 @@ sub end_tt {
 sub start_kbd {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\texttt{';
@@ -1073,7 +1079,7 @@ sub start_kbd {
 sub end_kbd {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -1085,7 +1091,7 @@ sub end_kbd {
 sub start_code {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\texttt{';
@@ -1096,7 +1102,7 @@ sub start_code {
 sub end_code {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -1108,7 +1114,7 @@ sub end_code {
 sub start_em {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\emph{';
@@ -1119,7 +1125,7 @@ sub start_em {
 sub end_em {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -1131,7 +1137,7 @@ sub end_em {
 sub start_q {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\emph{';
@@ -1142,7 +1148,7 @@ sub start_q {
 sub end_q {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -1181,13 +1187,14 @@ sub enable_para {
 sub start_p {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= &end_p();	# close off prior para if in progress.
 	$currentstring .= $token->[4];
 	if (! ($currentstring =~ /\//)) {
 	    $closing_string = '</p>'; # Deal correctly with <p /> e.g.
 	}
     } elsif ($target eq 'tex' && !$para_disabled) {
+
 	$currentstring .= &end_p();	# close off prior para if in progress.
 	my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
 	if ($align eq 'center') {
@@ -1195,7 +1202,6 @@ sub start_p {
 	    $closing_string = '\end{center}';
 	    if (&is_inside_of($tagstack, "table")) {
 		$currentstring = &center_correction().$currentstring;
-		#$closing_string .= &center_correction();
 	    }
 	} elsif ($align eq 'right') {
 	    $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
@@ -1205,7 +1211,11 @@ sub start_p {
 	    $closing_string = '}\hfill}';
 	} else {
             $currentstring.='\par ';
-	    $closing_string = '\strut\\\\\strut ';
+	    if (&is_inside_of($tagstack, 'table')) {
+		$closing_string = '\vskip 0pt'; # Seems to be consistent with <p> in tables.
+	    } else {
+		$closing_string = '\strut\\\\\strut ';
+	    }
         }
 
     }
@@ -1232,7 +1242,7 @@ sub end_p {
 sub start_br {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	my @tempo=@$tagstack;
@@ -1260,7 +1270,7 @@ sub start_br {
 sub end_br {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     }
     return $currentstring;
@@ -1270,7 +1280,7 @@ sub end_br {
 sub start_big {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '{\large ';
@@ -1281,7 +1291,7 @@ sub start_big {
 sub end_big {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -1293,7 +1303,7 @@ sub end_big {
 sub start_small {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '{\footnotesize ';
@@ -1304,7 +1314,7 @@ sub start_small {
 sub end_small {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -1316,7 +1326,7 @@ sub end_small {
 sub start_basefont {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
@@ -1330,7 +1340,7 @@ sub start_basefont {
 sub end_basefont {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
@@ -1345,7 +1355,7 @@ sub end_basefont {
 sub start_font {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
 	if ($face!~/symbol/i) {
 	    if (($env{'browser.fontenhance'} eq 'on') || 
@@ -1364,7 +1374,7 @@ sub start_font {
 sub end_font {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     }  elsif ($target eq 'tex') {
 	my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
@@ -1379,7 +1389,7 @@ sub end_font {
 sub start_strike {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	&Apache::lonxml::startredirection();
@@ -1390,7 +1400,7 @@ sub start_strike {
 sub end_strike {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring=&Apache::lonxml::endredirection();
@@ -1405,7 +1415,7 @@ sub end_strike {
 sub start_s {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	&Apache::lonxml::startredirection();
@@ -1416,7 +1426,7 @@ sub start_s {
 sub end_s {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring=&Apache::lonxml::endredirection();
@@ -1431,7 +1441,7 @@ sub end_s {
 sub start_sub {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\ensuremath{_{';
@@ -1442,7 +1452,7 @@ sub start_sub {
 sub end_sub {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}}';
@@ -1454,7 +1464,7 @@ sub end_sub {
 sub start_sup {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\ensuremath{^{';
@@ -1465,7 +1475,7 @@ sub start_sup {
 sub end_sup {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}}';
@@ -1477,7 +1487,7 @@ sub end_sup {
 sub start_hr {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# End enclosing para.
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
@@ -1507,7 +1517,7 @@ sub start_hr {
 sub end_hr {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     }
     return $currentstring;
@@ -1525,7 +1535,7 @@ sub end_hr {
 sub start_div {
     my ($target,$token, $tagstack, $parstack, $parser, $safeeval) = @_;
     my $currentstring = &end_p();	# Close enclosing para.
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } 
     if ($target eq 'tex') {
@@ -1540,7 +1550,6 @@ sub start_div {
 	    $endstring      = '\end{center}';
 	    if (&is_inside_of($tagstack, "table")) {
 		$currentstring = &center_correction().$currentstring;
-		#$endstring .= &center_correction();
 	    }
 	}
 	elsif ($align eq 'right') {
@@ -1562,7 +1571,7 @@ sub start_div {
 sub end_div {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     }
     if ($target eq 'tex') {
@@ -1577,7 +1586,7 @@ sub end_div {
 sub start_a {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
 					    undef,1);
 	$currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
@@ -1599,7 +1608,7 @@ sub start_a {
 sub end_a {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     }
     return $currentstring;
@@ -1609,7 +1618,7 @@ sub end_a {
 sub start_li {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
@@ -1640,7 +1649,7 @@ sub start_li {
 sub end_li {
     my ($target,$token) = @_;
     my $currentstring = &end_p();	# In case there's a <p> in the <li>
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];     
     } 
     return $currentstring;
@@ -1650,7 +1659,7 @@ sub end_li {
 sub start_u {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	&Apache::lonxml::startredirection();
@@ -1661,7 +1670,7 @@ sub start_u {
 sub end_u {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring=&Apache::lonxml::endredirection();
@@ -1676,7 +1685,7 @@ sub end_u {
 sub start_ul {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# Close off enclosing list.
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];     
     } elsif ($target eq 'tex') {
 	my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
@@ -1705,7 +1714,7 @@ sub start_ul {
 sub end_ul {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
 	$currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
@@ -1720,7 +1729,7 @@ sub end_ul {
 sub start_menu {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	$currentstring = " \\begin{itemize} ";  
@@ -1731,7 +1740,7 @@ sub start_menu {
 sub end_menu {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
 	$currentstring = " \\end{itemize}";  
@@ -1743,7 +1752,7 @@ sub end_menu {
 sub start_dir {
     my ($target,$token) = @_;
     my $currentstring = &end_p();	# In case there's a <p> prior to the list.
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];     
     } elsif ($target eq 'tex') {
 	$currentstring .= " \\begin{itemize} ";  
@@ -1754,7 +1763,7 @@ sub start_dir {
 sub end_dir {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
 	$currentstring = " \\end{itemize}";  
@@ -1766,7 +1775,7 @@ sub end_dir {
 sub start_ol {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# In case there's a <p> prior to the list.
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];     
     } elsif ($target eq 'tex') {
 	$Apache::londefdef::list_index=0;
@@ -1805,7 +1814,7 @@ sub start_ol {
 sub end_ol {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
 	$currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
@@ -1820,7 +1829,7 @@ sub end_ol {
 sub start_dl {
     my ($target,$token) = @_;
     my $currentstring = &end_p();	# In case there's a <p> unclosed prior to the list.
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];     
     } elsif ($target eq 'tex') {
 	$currentstring .= '\begin{description}';
@@ -1836,7 +1845,7 @@ sub start_dl {
 sub end_dl {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
 	if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
@@ -1858,7 +1867,7 @@ sub end_dl {
 sub start_dt {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring='';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
@@ -1873,7 +1882,7 @@ sub start_dt {
 sub end_dt {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } elsif ($target eq 'tex') {
 	if ($Apache::londefdef::DT[-1]) {
@@ -1896,7 +1905,7 @@ sub item_cleanup {
 sub start_dd {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
@@ -1915,7 +1924,7 @@ sub start_dd {
 sub end_dd {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     }  elsif ($target eq 'tex') {
 	$Apache::londefdef::description[-1]->[-1].=
@@ -1936,7 +1945,7 @@ sub start_table {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $textwidth = '';
     my $currentstring = &end_p();
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];     
     } elsif ($target eq 'tex') {
 	my $aa = {};
@@ -1981,7 +1990,12 @@ sub start_table {
             $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;
 	} else {
 	    $Apache::londefdef::table[-1]{'width'}=$TeXwidth;
-	}        
+	}
+        #  In the end, however the table width cannot be wider than $textwidth...
+	
+	if ($Apache::londefdef::table[-1]{'width'} > $textwidth) {
+	    $Apache::londefdef::table[-1]{'width'} = $textwidth;
+	}
 
         #table's border
 	my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval); 
@@ -2019,12 +2033,13 @@ sub start_table {
 sub end_table {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
 	my $inmemory = '';
 	my $output = '';
 	my $WARNING='';
+	# &debug_dump_table($Apache::londefdef::table[-1]);
         #width of columns from TeXwidth attributes
 
 	for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
@@ -2209,7 +2224,29 @@ sub end_table {
 	$header_of_table .= '}';
 	#fill the table
 	for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
+	    my $have_rowspan = 0;
 	    for (my $jn=0;$jn<=$#fwidth;$jn++) {
+		#
+		#  Do the appropriate magic if this has a colspan
+		# 
+		my $colspan = $Apache::londefdef::table[-1]{'colspan'}[$in][$jn];
+		if ($colspan > 1) {
+		    $output .= '\multicolumn{'.
+			$colspan
+			.'}{|l|}{';
+		}
+		my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
+
+		# Start a rowspan if necessary:
+
+		if ($rowspan > 1) {
+		    $have_rowspan++;
+		    $output .= '\multirow{'.$rowspan.'}[0]{'.$fwidth[$jn].'mm}{';
+		}
+		if (($rowspan eq '^') || ($rowspan eq '_')) {
+		    $have_rowspan++;
+		}
+
 		if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
 		    $output.=&center_correction().'\begin{center}';
 		} elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
@@ -2217,13 +2254,41 @@ sub end_table {
 		}
 		$output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
 		if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
-		    $output.='\end{center}';#.&center_correction();
+		    $output.='\end{center}';
 		} elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
 		    $output.='} ';
 		}
+		# Close off any open multirow:
+		
+		if ($rowspan > 1) {
+		    $output .= '}';
+		}
+		#  Close off the colspan...
+		#
+		if ($colspan > 1)  {
+		    $output .= '}';
+		    $jn += $colspan-1; # Adjust for number of rows really left.
+		}
                 if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}
 	    }
-	    $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
+	    #  If have_rowspan > 0, and borders are on, then 
+	    #  we need to do more than put an \hline at the bottom of row.
+	    #  we need to do the appropriate \cline to ensure that
+	    #  the spanned rows don't have \hlines through them.
+
+	    if (($Apache::londefdef::table[-1]{'hinc'} =~ /\\hline/) && $have_rowspan) {
+		$output .= ' \\\\ ';
+		for (my $jn=0; $jn<=$#fwidth;$jn++) {
+		    my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
+		    if (($rowspan <= 1) || ($rowspan eq '_')) {
+			my $column = $jn+1;
+			$output .= '\cline{'.$column.'-'.$column.'} ';
+		    }
+		}
+
+	    } else {
+		$output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
+	    }
 	}
 	# Note that \newline destroys alignment env's produced  by e.g. <div>
 	# $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
@@ -2271,7 +2336,7 @@ sub end_table {
 sub start_tr {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	$Apache::londefdef::table[-1]{'row_number'}++;
@@ -2299,7 +2364,7 @@ sub start_tr {
 sub end_tr {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# Close any pending <p> in the row.
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];     
     } elsif ($target eq 'tex') {
 	if ($Apache::londefdef::TD_redirection) {
@@ -2321,7 +2386,7 @@ sub end_tr {
 sub start_td {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	$Apache::londefdef::TD_redirection = 1;
@@ -2367,8 +2432,42 @@ sub start_td_tex {
 
 sub end_td_tex {
     my ($parstack,$parser,$safeeval) = @_;
-    my $current_row = $Apache::londefdef::table[-1]{'row_number'};
-    my $data=&Apache::lonxml::endredirection();
+    my $current_row    = $Apache::londefdef::table[-1]{'row_number'};
+    my $current_column = $Apache::londefdef::table[-1]{'counter_columns'}; 
+    my $data = &Apache::lonxml::endredirection();
+
+    #  The rowspan array of the table indicates which cells are part of a span.
+    #  n indicates the start of a span set of n rows.
+    #  ^ indicates a cell that continues a span set.
+    #  _ indicates the cell is at the bottom of a span set.
+    #  If this and subsequent cells are part of a rowspan, we must
+    #  push along the row until we find one that is not.
+
+    while ((defined $Apache::londefdef::table[-1]{'rowspan'}[$current_row] [$current_column]) 
+	   && ($Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] =~ /[\^\_]/)) {
+	# Part of a span.
+	push @ {$Apache::londefdef::table[-1]{'content'}[-1]}, '';
+	$current_column++;
+    }
+    $Apache::londefdef::table[-1]{'counter_columns'} = $current_column;
+   
+
+
+    my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 0);
+    if (!$rowspan) {
+	$rowspan = 1;
+    }
+
+
+
+    $Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] = $rowspan;
+    for (my $i = 1; $i < $rowspan; $i++) {
+	$Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column] = '^';
+	if ($i == ($rowspan-1)) {
+	    $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column] = '_';
+	}
+    }
+
     my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
     if (defined $TeXwidth) {		
 	push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
@@ -2457,14 +2556,41 @@ sub end_td_tex {
 
     }
     # Should be be killing off the 'include' elements as they're used up?
+
     push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
+
+    # Get the column and row spans.
+    # Colspan can be done via \multicolumn if I can figure out the data structs.
+
+    my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 0);
+    if (!$colspan) {
+	$colspan = 1;
+    }
+
+
+    #  the colspan array will indicate how many columns will be spanned by this
+    #  cell..this requires that counter_columns also be adjusted accordingly
+    #  so that the next bunch of text goes in the right cell.  Note that since
+    #  counter_columns is incremented in the start_td_tex, we adjust by colspan-1.
+    #
+
+    $Apache::londefdef::table[-1]{'colspan'}[$current_row][$current_column] = $colspan;
+    $Apache::londefdef::table[-1]{'counter_columns'} += $colspan -1;
+
+    # Put empty text in spanned cols.
+
+    for (my $i = 0; $i < ($colspan -1); $i++) {
+	push @ {$Apache::londefdef::table[-1]{'content'}[-1] },'';
+    }
+
+
     return '';
 }
 
 sub end_td {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
         $Apache::londefdef::TD_redirection =0;
@@ -2477,7 +2603,7 @@ sub end_td {
 sub start_th {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	$Apache::londefdef::TD_redirection = 1;
@@ -2593,7 +2719,7 @@ sub end_th_tex {
 sub end_th {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# Close any open <p> in the row.
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];     
     } elsif ($target eq 'tex') {
         $Apache::londefdef::TD_redirection =0;
@@ -2617,9 +2743,7 @@ sub start_img {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
     my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
 					 undef,1);
-    if (! $src && 
-	($target eq 'web' || $target eq 'webgrade' || $target eq 'tex')
-	) { 
+    if (not $src and ($target eq 'web' or $target eq 'tex')) { 
 	my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);
 	return '';
     }
@@ -2629,7 +2753,7 @@ sub start_img {
 
    # Render unto browsers that which are the browser's...
 
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	if ($env{'browser.imagesuppress'} ne 'on') {
 	    $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
 	} else {
@@ -2656,12 +2780,7 @@ sub start_img {
 						  $safeeval,
 						  undef,1));
 	if(!$align) {
-	    # disabled for now see BUG#4535
-	    if (&is_inside_of($tagstack, "table")) {
-		$align = "top";      # Force top of image to top of table cell 
-	    } else {
 		$align = "bottom";	# This is html's default so it's ours too.
-	    }
 	}
 	#
 	&Apache::lonxml::debug("Alignemnt = $align");
@@ -2676,11 +2795,17 @@ sub start_img {
 							    $parstack,
 							    $safeeval,
 							    undef,0);
-	&Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
+	# &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
 	if(!$latex_rendering) {
-	    $latex_rendering = "texwrap";
+		$latex_rendering = "texwrap";
+	}
+	# using texwrap inside a table does not work. So, if after all of this,
+	# texwrap is on, we turn it off if we detect we're in a table:
+	#
+	if (($latex_rendering eq 'texwrap') && &is_inside_of($tagstack, "table")) {
+	    $latex_rendering = 'parpic';
 	}
-	&Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
+	# &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
 
 	#if original gif/jpg/png file exist do following:
 	my $origsrc=$src;
@@ -2821,7 +2946,7 @@ sub start_img {
 sub end_img {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring = '';
@@ -2839,7 +2964,7 @@ sub start_applet {
 					   undef,1);
     &Apache::lonxml::extlink($archive);
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	if ($env{'browser.appletsuppress'} ne 'on') {
 	    $currentstring = &Apache::lonenc::encrypt_ref($token,
 							  {'code'=>$code,
@@ -2872,7 +2997,7 @@ sub start_applet {
 sub end_applet {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];
     } elsif ($target eq 'tex') {
     } 
@@ -2885,7 +3010,7 @@ sub start_embed {
     my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
     &Apache::lonxml::extlink($src);
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	if ($env{'browser.embedsuppress'} ne 'on') {
 	    $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
 	} else {
@@ -2904,7 +3029,7 @@ sub start_embed {
 sub end_embed {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {  
     } 
@@ -2924,7 +3049,7 @@ sub start_param {
     my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
     &Apache::lonxml::extlink($src);
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	my %toconvert;
 	my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
 	if ($src) { $toconvert{'src'}= $src; }
@@ -2943,7 +3068,7 @@ sub start_param {
 sub end_param {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
     } 
@@ -2981,7 +3106,7 @@ sub end_allow {
 sub start_frameset {
     my ($target,$token) = @_;
     my $currentstring = '';	# Close any pending para.
-    if ($target eq 'web' || $target eq 'webgrade') { 
+    if ($target eq 'web') { 
 	if (!$Apache::lonxml::registered &&
 	    $env{'request.state'} eq 'published') {
 	    $currentstring.='<head>'.
@@ -3017,7 +3142,7 @@ sub start_frameset {
 sub end_frameset {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];
     }
     return $currentstring;
@@ -3027,7 +3152,7 @@ sub end_frameset {
 sub start_xmp {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\begin{verbatim}';
@@ -3038,7 +3163,7 @@ sub start_xmp {
 sub end_xmp {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\end{verbatim}';
@@ -3050,10 +3175,11 @@ sub end_xmp {
 sub start_pre {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# close off pending <p>
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\begin{verbatim}';
+	&Apache::lonxml::disable_LaTeX_substitutions();
     } 
     return $currentstring;
 }
@@ -3061,10 +3187,11 @@ sub start_pre {
 sub end_pre {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\end{verbatim}';
+	&Apache::lonxml::enable_LaTeX_substitutions();
     }
     return $currentstring;
 }
@@ -3073,7 +3200,7 @@ sub end_pre {
 sub start_insert {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
 	$currentstring .= '<b>'.$display.'</b>';;
     }
@@ -3083,7 +3210,7 @@ sub start_insert {
 sub end_insert {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= '';
     }
     return $currentstring;
@@ -3093,7 +3220,7 @@ sub end_insert {
 sub start_externallink {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
 	$currentstring .= '<b>'.$display.'</b>';;
     }
@@ -3103,7 +3230,7 @@ sub start_externallink {
 sub end_externallink {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= '';
     }
     return $currentstring;
@@ -3133,7 +3260,7 @@ sub end_blankspace {
 sub start_abbr {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3142,7 +3269,7 @@ sub start_abbr {
 sub end_abbr {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3152,7 +3279,7 @@ sub end_abbr {
 sub start_acronym {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3161,7 +3288,7 @@ sub start_acronym {
 sub end_acronym {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3171,7 +3298,7 @@ sub end_acronym {
 sub start_area {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3180,7 +3307,7 @@ sub start_area {
 sub end_area {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3190,7 +3317,7 @@ sub end_area {
 sub start_base {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     }
     return $currentstring;
@@ -3199,7 +3326,7 @@ sub start_base {
 sub end_base {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3209,7 +3336,7 @@ sub end_base {
 sub start_bdo {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3218,7 +3345,7 @@ sub start_bdo {
 sub end_bdo {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3228,7 +3355,7 @@ sub end_bdo {
 sub start_bgsound {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3237,7 +3364,7 @@ sub start_bgsound {
 sub end_bgsound {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3247,7 +3374,7 @@ sub end_bgsound {
 sub start_blink {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3256,7 +3383,7 @@ sub start_blink {
 sub end_blink {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3266,7 +3393,7 @@ sub end_blink {
 sub start_blockquote {
     my ($target,$token) = @_;
     my $currentstring = &end_p();	# Close any unclosed <p>
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];     
     } 
     return $currentstring;
@@ -3275,7 +3402,7 @@ sub start_blockquote {
 sub end_blockquote {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3285,7 +3412,7 @@ sub end_blockquote {
 sub start_button {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3294,7 +3421,7 @@ sub start_button {
 sub end_button {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3304,7 +3431,7 @@ sub end_button {
 sub start_caption {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3313,7 +3440,7 @@ sub start_caption {
 sub end_caption {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3323,7 +3450,7 @@ sub end_caption {
 sub start_col {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3332,7 +3459,7 @@ sub start_col {
 sub end_col {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3342,7 +3469,7 @@ sub end_col {
 sub start_colgroup {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3351,7 +3478,7 @@ sub start_colgroup {
 sub end_colgroup {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3361,7 +3488,7 @@ sub end_colgroup {
 sub start_del {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3370,7 +3497,7 @@ sub start_del {
 sub end_del {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3380,7 +3507,7 @@ sub end_del {
 sub start_fieldset {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3389,7 +3516,7 @@ sub start_fieldset {
 sub end_fieldset {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3399,7 +3526,7 @@ sub end_fieldset {
 sub start_frame {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3408,7 +3535,7 @@ sub start_frame {
 sub end_frame {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3418,7 +3545,7 @@ sub end_frame {
 sub start_iframe {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3427,7 +3554,7 @@ sub start_iframe {
 sub end_iframe {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3437,7 +3564,7 @@ sub end_iframe {
 sub start_ins {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3446,7 +3573,7 @@ sub start_ins {
 sub end_ins {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3456,7 +3583,7 @@ sub end_ins {
 sub start_isindex {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3465,7 +3592,7 @@ sub start_isindex {
 sub end_isindex {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3475,7 +3602,7 @@ sub end_isindex {
 sub start_keygen {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3484,7 +3611,7 @@ sub start_keygen {
 sub end_keygen {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3494,7 +3621,7 @@ sub end_keygen {
 sub start_label {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3503,7 +3630,7 @@ sub start_label {
 sub end_label {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3513,7 +3640,7 @@ sub end_label {
 sub start_layer {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3522,7 +3649,7 @@ sub start_layer {
 sub end_layer {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3532,7 +3659,7 @@ sub end_layer {
 sub start_legend {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3541,7 +3668,7 @@ sub start_legend {
 sub end_legend {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3551,7 +3678,7 @@ sub end_legend {
 sub start_link {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
 					    undef,1);
 	&Apache::lonxml::extlink($href);
@@ -3563,7 +3690,7 @@ sub start_link {
 sub end_link {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3573,7 +3700,7 @@ sub end_link {
 sub start_marquee {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3582,7 +3709,7 @@ sub start_marquee {
 sub end_marquee {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3592,7 +3719,7 @@ sub end_marquee {
 sub start_multicol {
     my ($target,$token) = @_;
     my $currentstring = &end_p();	# Close any pending <p>
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];     
     } 
     return $currentstring;
@@ -3601,7 +3728,7 @@ sub start_multicol {
 sub end_multicol {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3611,7 +3738,7 @@ sub end_multicol {
 sub start_nobr {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     }  elsif ($target eq 'tex') {
 	$currentstring='\mbox{';
@@ -3622,7 +3749,7 @@ sub start_nobr {
 sub end_nobr {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     }   elsif ($target eq 'tex') {
 	$currentstring='}';
@@ -3634,7 +3761,7 @@ sub end_nobr {
 sub start_noembed {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3643,7 +3770,7 @@ sub start_noembed {
 sub end_noembed {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3653,7 +3780,7 @@ sub end_noembed {
 sub start_noframes {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3662,7 +3789,7 @@ sub start_noframes {
 sub end_noframes {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3672,7 +3799,7 @@ sub end_noframes {
 sub start_nolayer {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3681,7 +3808,7 @@ sub start_nolayer {
 sub end_nolayer {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3691,7 +3818,7 @@ sub end_nolayer {
 sub start_noscript {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3700,7 +3827,7 @@ sub start_noscript {
 sub end_noscript {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3710,7 +3837,7 @@ sub end_noscript {
 sub start_object {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3719,7 +3846,7 @@ sub start_object {
 sub end_object {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3729,7 +3856,7 @@ sub end_object {
 sub start_optgroup {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3738,7 +3865,7 @@ sub start_optgroup {
 sub end_optgroup {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3748,7 +3875,7 @@ sub end_optgroup {
 sub start_samp {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	$currentstring='\texttt{';
@@ -3759,7 +3886,7 @@ sub start_samp {
 sub end_samp {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } elsif ($target eq 'tex') {
 	$currentstring='}';
@@ -3771,7 +3898,7 @@ sub end_samp {
 sub start_server {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3780,7 +3907,7 @@ sub start_server {
 sub end_server {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3790,7 +3917,7 @@ sub end_server {
 sub start_spacer {
     my ($target,$token) = @_;
     my $currentstring = &end_p();	# Close off any open <p> tag.
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring .= $token->[4];     
     } 
     return $currentstring;
@@ -3799,7 +3926,7 @@ sub start_spacer {
 sub end_spacer {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3809,7 +3936,7 @@ sub end_spacer {
 sub start_span {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3818,7 +3945,7 @@ sub start_span {
 sub end_span {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3828,7 +3955,7 @@ sub end_span {
 sub start_tbody {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3837,7 +3964,7 @@ sub start_tbody {
 sub end_tbody {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3847,7 +3974,7 @@ sub end_tbody {
 sub start_tfoot {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3856,7 +3983,7 @@ sub start_tfoot {
 sub end_tfoot {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3866,7 +3993,7 @@ sub end_tfoot {
 sub start_thead {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3875,7 +4002,7 @@ sub start_thead {
 sub end_thead {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3885,7 +4012,7 @@ sub end_thead {
 sub start_var {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	$currentstring = '\textit{'; 
@@ -3896,7 +4023,7 @@ sub start_var {
 sub end_var {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring = '}'; 
@@ -3908,7 +4035,7 @@ sub end_var {
 sub start_wbr {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3917,7 +4044,7 @@ sub start_wbr {
 sub end_wbr {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3926,7 +4053,7 @@ sub end_wbr {
 #-- <hideweboutput> tag
 sub start_hideweboutput {
     my ($target,$token) = @_;
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	&Apache::lonxml::startredirection();     
     } 
     return '';
@@ -3935,7 +4062,7 @@ sub start_hideweboutput {
 sub end_hideweboutput {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'web') {
 	$currentstring = &Apache::lonxml::endredirection();    
     } 
     return '';
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>500 Internal Server Error</title>
</head><body>
<h1>Internal Server Error</h1>
<p>The server encountered an internal error or
misconfiguration and was unable to complete
your request.</p>
<p>Please contact the server administrator at 
 root@localhost to inform them of the time this error occurred,
 and the actions you performed just before this error.</p>
<p>More information about this error may be available
in the server error log.</p>
</body></html>