--- loncom/xml/londefdef.pm	2006/01/09 22:53:25	1.311
+++ loncom/xml/londefdef.pm	2006/03/29 22:41:39	1.325
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Tags Default Definition Module 
 #
-# $Id: londefdef.pm,v 1.311 2006/01/09 22:53:25 albertel Exp $
+# $Id: londefdef.pm,v 1.325 2006/03/29 22:41:39 albertel Exp $
 # 
 #
 # Copyright Michigan State University Board of Trustees
@@ -105,11 +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:");
@@ -145,7 +155,7 @@ sub end_m {
 sub start_tthoption {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
     my $result;
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser,
 						   $style);
 	$inside=~s/^\s*//;
@@ -201,7 +211,7 @@ sub start_html {
 sub end_html {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = '</html>';
     }
     return $currentstring;
@@ -211,7 +221,7 @@ sub end_html {
 sub start_head {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4].&Apache::lonxml::fontsettings();
     } 
     return $currentstring;
@@ -220,7 +230,8 @@ sub start_head {
 sub end_head {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web' && $env{'request.state'} eq 'published') {
+    if (($target eq 'web'      && $env{'request.state'} eq 'published') ||
+	($target eq 'webgrade' && $env{'request.state'} eq 'published')) {
 	$currentstring = &Apache::lonmenu::registerurl(undef,$target).
 	    $token->[2];    
     } 
@@ -231,7 +242,7 @@ sub end_head {
 sub start_map {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -240,7 +251,7 @@ sub start_map {
 sub end_map {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -250,7 +261,7 @@ sub end_map {
 sub start_select {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     }  elsif ($target eq 'tex') {
 	$Apache::londefdef::select=0;
@@ -261,7 +272,7 @@ sub start_select {
 sub end_select {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -271,7 +282,7 @@ sub end_select {
 sub start_option {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	$Apache::londefdef::select++;
@@ -287,7 +298,7 @@ sub start_option {
 sub end_option {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     }  elsif ($target eq 'tex') {
 	$currentstring='}';
@@ -299,7 +310,7 @@ sub end_option {
 sub start_input {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -308,7 +319,7 @@ sub start_input {
 sub end_input {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -318,7 +329,7 @@ sub end_input {
 sub start_textarea {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -327,7 +338,7 @@ sub start_textarea {
 sub end_textarea {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -337,7 +348,7 @@ sub end_textarea {
 sub start_form {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -346,7 +357,7 @@ sub start_form {
 sub end_form {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -356,7 +367,7 @@ sub end_form {
 sub start_title {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	$currentstring .= '\keephidden{Title of the document:  ' 
@@ -371,7 +382,7 @@ sub start_title {
 sub end_title {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -387,7 +398,7 @@ sub end_title {
 sub start_meta {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	my $args='';
 	if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
 	if ($args eq '') {
@@ -436,7 +447,7 @@ sub start_meta {
 sub end_meta {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	my $args='';
 	if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
 	if ($args ne '') {
@@ -502,7 +513,7 @@ sub start_body {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
 
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	if ($Apache::lonhomework::parsing_a_problem) {
 	    &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
 	    return '';
@@ -586,7 +597,7 @@ EDITBUTTON
 sub end_body {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# Close off unclosed <p>
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= &Apache::lonxml::xmlend($target,$parser);
     } elsif ($target eq 'tex') {
 	$currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';  
@@ -601,7 +612,7 @@ 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') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];     
     } elsif ($target eq 'tex') {
 	if (&is_inside_of($tagstack, "table")) {
@@ -615,13 +626,10 @@ sub start_center {
 sub end_center {
     my ($target,$token,$tagstack) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
 	$currentstring = '\end{center}';  
-	if (&is_inside_of($tagstack, "table")) {
-	    $currentstring .= &center_correction();
-	}
     }
     return $currentstring;
 }
@@ -631,7 +639,7 @@ sub end_center {
 sub start_b {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	&disable_para();
@@ -643,7 +651,7 @@ sub start_b {
 sub end_b {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
 	&enable_para();
@@ -657,7 +665,7 @@ sub end_b {
 sub start_strong {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	&disable_para();
@@ -669,7 +677,7 @@ sub start_strong {
 sub end_strong {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {	
+    if ($target eq 'web' || $target eq 'webgrade') {	
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
 	&enable_para();
@@ -682,7 +690,7 @@ 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') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	my $pre;
@@ -707,7 +715,7 @@ sub start_h1 {
 sub end_h1 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	my $post='\vskip 0 mm ';
@@ -731,7 +739,7 @@ sub end_h1 {
 sub start_h2 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# Close off any prior para.
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	my $pre;
@@ -753,7 +761,7 @@ sub start_h2 {
 sub end_h2 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	my $post='\vskip 0 mm ';
@@ -774,7 +782,7 @@ sub end_h2 {
 sub start_h3 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# Close off any prior para.
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	my $pre;
@@ -796,7 +804,7 @@ sub start_h3 {
 sub end_h3 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	my $post='\vskip 0 mm ';
@@ -817,7 +825,7 @@ sub end_h3 {
 sub start_h4 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# Close off any prior para.
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	my $pre;
@@ -839,7 +847,7 @@ sub start_h4 {
 sub end_h4 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	my $post='\vskip 0 mm ';
@@ -860,7 +868,7 @@ sub end_h4 {
 sub start_h5 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# Close off any prior paras.
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	my $pre;
@@ -882,7 +890,7 @@ sub start_h5 {
 sub end_h5 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	my $post='\vskip 0 mm ';
@@ -903,7 +911,7 @@ sub end_h5 {
 sub start_h6 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# Close off any prior paras.
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	my $pre;
@@ -925,7 +933,7 @@ sub start_h6 {
 sub end_h6 {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	my $post='\vskip 0 mm ';
@@ -946,7 +954,7 @@ sub end_h6 {
 sub start_cite {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\textit{';
@@ -957,7 +965,7 @@ sub start_cite {
 sub end_cite {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -969,7 +977,7 @@ sub end_cite {
 sub start_i {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\textit{';
@@ -980,7 +988,7 @@ sub start_i {
 sub end_i {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -992,7 +1000,7 @@ sub end_i {
 sub start_address {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\textit{';
@@ -1003,7 +1011,7 @@ sub start_address {
 sub end_address {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -1015,7 +1023,7 @@ sub end_address {
 sub start_dfn {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\textit{';
@@ -1026,7 +1034,7 @@ sub start_dfn {
 sub end_dfn {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -1038,7 +1046,7 @@ sub end_dfn {
 sub start_tt {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\texttt{';
@@ -1049,7 +1057,7 @@ sub start_tt {
 sub end_tt {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -1061,7 +1069,7 @@ sub end_tt {
 sub start_kbd {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\texttt{';
@@ -1072,7 +1080,7 @@ sub start_kbd {
 sub end_kbd {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -1084,7 +1092,7 @@ sub end_kbd {
 sub start_code {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\texttt{';
@@ -1095,7 +1103,7 @@ sub start_code {
 sub end_code {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -1107,7 +1115,7 @@ sub end_code {
 sub start_em {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\emph{';
@@ -1118,7 +1126,7 @@ sub start_em {
 sub end_em {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -1130,7 +1138,7 @@ sub end_em {
 sub start_q {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\emph{';
@@ -1141,7 +1149,7 @@ sub start_q {
 sub end_q {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -1180,13 +1188,14 @@ sub enable_para {
 sub start_p {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$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') {
@@ -1194,17 +1203,22 @@ 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{';
-	    $closing_string= '}}';
+	    $currentstring.="\n".'{\flushright ';
+#	    $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
+	    $closing_string= "}\n";
 	} elsif ($align eq 'left') {
-	    $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{\rlap{';
-	    $closing_string = '}\hfill}';
+	    $currentstring.= "\n".'{\flushleft ';
+#	    $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{{';
+	    $closing_string = "}\n";
 	} 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 ';
+	    }
         }
 
     }
@@ -1231,7 +1245,7 @@ sub end_p {
 sub start_br {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	my @tempo=@$tagstack;
@@ -1259,7 +1273,7 @@ sub start_br {
 sub end_br {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     }
     return $currentstring;
@@ -1269,7 +1283,7 @@ sub end_br {
 sub start_big {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '{\large ';
@@ -1280,7 +1294,7 @@ sub start_big {
 sub end_big {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -1292,7 +1306,7 @@ sub end_big {
 sub start_small {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '{\footnotesize ';
@@ -1303,7 +1317,7 @@ sub start_small {
 sub end_small {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}';
@@ -1315,7 +1329,7 @@ sub end_small {
 sub start_basefont {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
@@ -1329,7 +1343,7 @@ sub start_basefont {
 sub end_basefont {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
@@ -1344,7 +1358,7 @@ sub end_basefont {
 sub start_font {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
 	if ($face!~/symbol/i) {
 	    if (($env{'browser.fontenhance'} eq 'on') || 
@@ -1363,7 +1377,7 @@ sub start_font {
 sub end_font {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     }  elsif ($target eq 'tex') {
 	my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
@@ -1378,7 +1392,7 @@ sub end_font {
 sub start_strike {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	&Apache::lonxml::startredirection();
@@ -1389,7 +1403,7 @@ sub start_strike {
 sub end_strike {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring=&Apache::lonxml::endredirection();
@@ -1404,7 +1418,7 @@ sub end_strike {
 sub start_s {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	&Apache::lonxml::startredirection();
@@ -1415,7 +1429,7 @@ sub start_s {
 sub end_s {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring=&Apache::lonxml::endredirection();
@@ -1430,7 +1444,7 @@ sub end_s {
 sub start_sub {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\ensuremath{_{';
@@ -1441,7 +1455,7 @@ sub start_sub {
 sub end_sub {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}}';
@@ -1453,7 +1467,7 @@ sub end_sub {
 sub start_sup {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\ensuremath{^{';
@@ -1464,7 +1478,7 @@ sub start_sup {
 sub end_sup {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '}}';
@@ -1476,7 +1490,7 @@ sub end_sup {
 sub start_hr {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# End enclosing para.
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
@@ -1506,7 +1520,7 @@ sub start_hr {
 sub end_hr {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     }
     return $currentstring;
@@ -1524,7 +1538,7 @@ sub end_hr {
 sub start_div {
     my ($target,$token, $tagstack, $parstack, $parser, $safeeval) = @_;
     my $currentstring = &end_p();	# Close enclosing para.
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } 
     if ($target eq 'tex') {
@@ -1539,7 +1553,6 @@ sub start_div {
 	    $endstring      = '\end{center}';
 	    if (&is_inside_of($tagstack, "table")) {
 		$currentstring = &center_correction().$currentstring;
-		$endstring .= &center_correction();
 	    }
 	}
 	elsif ($align eq 'right') {
@@ -1561,7 +1574,7 @@ sub start_div {
 sub end_div {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     }
     if ($target eq 'tex') {
@@ -1576,7 +1589,7 @@ sub end_div {
 sub start_a {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
 					    undef,1);
 	$currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
@@ -1598,7 +1611,7 @@ sub start_a {
 sub end_a {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     }
     return $currentstring;
@@ -1608,7 +1621,7 @@ sub end_a {
 sub start_li {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
@@ -1639,7 +1652,7 @@ sub start_li {
 sub end_li {
     my ($target,$token) = @_;
     my $currentstring = &end_p();	# In case there's a <p> in the <li>
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];     
     } 
     return $currentstring;
@@ -1649,7 +1662,7 @@ sub end_li {
 sub start_u {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	&Apache::lonxml::startredirection();
@@ -1660,7 +1673,7 @@ sub start_u {
 sub end_u {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring=&Apache::lonxml::endredirection();
@@ -1675,7 +1688,7 @@ sub end_u {
 sub start_ul {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# Close off enclosing list.
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];     
     } elsif ($target eq 'tex') {
 	my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
@@ -1704,7 +1717,7 @@ sub start_ul {
 sub end_ul {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
 	$currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
@@ -1719,7 +1732,7 @@ sub end_ul {
 sub start_menu {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	$currentstring = " \\begin{itemize} ";  
@@ -1730,7 +1743,7 @@ sub start_menu {
 sub end_menu {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
 	$currentstring = " \\end{itemize}";  
@@ -1742,7 +1755,7 @@ sub end_menu {
 sub start_dir {
     my ($target,$token) = @_;
     my $currentstring = &end_p();	# In case there's a <p> prior to the list.
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];     
     } elsif ($target eq 'tex') {
 	$currentstring .= " \\begin{itemize} ";  
@@ -1753,7 +1766,7 @@ sub start_dir {
 sub end_dir {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
 	$currentstring = " \\end{itemize}";  
@@ -1765,7 +1778,7 @@ sub end_dir {
 sub start_ol {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# In case there's a <p> prior to the list.
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];     
     } elsif ($target eq 'tex') {
 	$Apache::londefdef::list_index=0;
@@ -1804,7 +1817,7 @@ sub start_ol {
 sub end_ol {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
 	$currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
@@ -1819,7 +1832,7 @@ sub end_ol {
 sub start_dl {
     my ($target,$token) = @_;
     my $currentstring = &end_p();	# In case there's a <p> unclosed prior to the list.
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];     
     } elsif ($target eq 'tex') {
 	$currentstring .= '\begin{description}';
@@ -1835,7 +1848,7 @@ sub start_dl {
 sub end_dl {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
 	if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
@@ -1857,7 +1870,7 @@ sub end_dl {
 sub start_dt {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring='';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
@@ -1872,7 +1885,7 @@ sub start_dt {
 sub end_dt {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } elsif ($target eq 'tex') {
 	if ($Apache::londefdef::DT[-1]) {
@@ -1895,7 +1908,7 @@ sub item_cleanup {
 sub start_dd {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
@@ -1914,7 +1927,7 @@ sub start_dd {
 sub end_dd {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     }  elsif ($target eq 'tex') {
 	$Apache::londefdef::description[-1]->[-1].=
@@ -1935,7 +1948,7 @@ sub start_table {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $textwidth = '';
     my $currentstring = &end_p();
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];     
     } elsif ($target eq 'tex') {
 	my $aa = {};
@@ -1980,7 +1993,12 @@ 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,$safeeval); 
@@ -2018,13 +2036,12 @@ sub start_table {
 sub end_table {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$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++) {
@@ -2211,18 +2228,26 @@ sub end_table {
 	for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
 	    my $have_rowspan = 0;
 	    for (my $jn=0;$jn<=$#fwidth;$jn++) {
+
+		#-----------------------------------------------------------
+                #   I think this order of doing things will ensure that
+		#   single rowspan, columspan and combined row/colspans will
+                #   work correctly.  LaTeX is delicate here.
+		#    RF.
+
+		# Start a rowspan if necessary:
+
+		my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
+		my $colspan = $Apache::londefdef::table[-1]{'colspan'}[$in][$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) {
 		    $have_rowspan++;
@@ -2231,6 +2256,7 @@ sub end_table {
 		if (($rowspan eq '^') || ($rowspan eq '_')) {
 		    $have_rowspan++;
 		}
+		#--------------------------------------------------------------
 
 		if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
 		    $output.=&center_correction().'\begin{center}';
@@ -2239,7 +2265,7 @@ 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.='} ';
 		}
@@ -2265,9 +2291,11 @@ sub end_table {
 		$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.'-'.$column.'} ';
+		    if ($rowspan ne "^") {
+			if (($rowspan <= 1) || ($rowspan eq '_')) {
+			    my $column = $jn+1;
+			    $output .= '\cline{'.$column.'-'.$column.'} ';
+			}
 		    }
 		}
 
@@ -2321,7 +2349,7 @@ sub end_table {
 sub start_tr {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	$Apache::londefdef::table[-1]{'row_number'}++;
@@ -2349,7 +2377,7 @@ sub start_tr {
 sub end_tr {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# Close any pending <p> in the row.
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];     
     } elsif ($target eq 'tex') {
 	if ($Apache::londefdef::TD_redirection) {
@@ -2371,7 +2399,7 @@ sub end_tr {
 sub start_td {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	$Apache::londefdef::TD_redirection = 1;
@@ -2437,6 +2465,13 @@ sub end_td_tex {
     $Apache::londefdef::table[-1]{'counter_columns'} = $current_column;
    
 
+    # 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;
+    }
 
     my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 0);
     if (!$rowspan) {
@@ -2445,11 +2480,13 @@ sub end_td_tex {
 
 
 
-    $Apache::londefdef::table[-1]{'rowspan'}[$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] = '_';
+    for (my $c = 0; $c < $colspan; $c++) {
+	$Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column+$c] = $rowspan;
+	for (my $i = 1; $i < $rowspan; $i++) {
+	    $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '^';
+	    if ($i == ($rowspan-1)) {
+		$Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '_';
+	    }
 	}
     }
 
@@ -2544,13 +2581,7 @@ sub end_td_tex {
 
     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
@@ -2559,14 +2590,16 @@ sub end_td_tex {
     #  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] },'';
     }
+    for (my $r = 0; $r < $rowspan; $r++) {
+	$Apache::londefdef::table[-1]{'colspan'}[$current_row+$r][$current_column] = $colspan;
+	# Put empty text in spanned cols.
+	
+    }
+
 
 
     return '';
@@ -2575,7 +2608,7 @@ sub end_td_tex {
 sub end_td {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
         $Apache::londefdef::TD_redirection =0;
@@ -2588,7 +2621,7 @@ sub end_td {
 sub start_th {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	$Apache::londefdef::TD_redirection = 1;
@@ -2704,7 +2737,7 @@ sub end_th_tex {
 sub end_th {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# Close any open <p> in the row.
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];     
     } elsif ($target eq 'tex') {
         $Apache::londefdef::TD_redirection =0;
@@ -2728,7 +2761,9 @@ sub start_img {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
     my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
 					 undef,1);
-    if (not $src and ($target eq 'web' or $target eq 'tex')) { 
+    if (! $src && 
+	($target eq 'web' || $target eq 'webgrade' || $target eq 'tex')
+	) { 
 	my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);
 	return '';
     }
@@ -2738,15 +2773,19 @@ sub start_img {
 
    # Render unto browsers that which are the browser's...
 
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	if ($env{'browser.imagesuppress'} ne 'on') {
-	    $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
-	} else {
-	    my $alttag= &Apache::lonxml::get_param
-		('alt',$parstack,$safeeval,undef,1);
-	    unless ($alttag) {
-		$alttag=&Apache::lonmeta::alttag
-		    ($Apache::lonxml::pwd[-1],$src);
+	    my $enc = ('yes' eq 
+		       lc(&Apache::lonxml::get_param('encrypturl',$parstack,
+						     $safeeval)));
+	    $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src},
+							 $enc);
+	} else {
+	    my $alttag = &Apache::lonxml::get_param('alt',$parstack,$safeeval,
+						    undef,1);
+	    if (!$alttag) {
+		$alttag = &Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
+						   $src);
 	    }
 	    $currentstring.='[IMAGE: '.$alttag.']';
 	}
@@ -2765,12 +2804,7 @@ sub start_img {
 						  $safeeval,
 						  undef,1));
 	if(!$align) {
-	    # disabled for now see BUG#4535
-	    if (0 && &is_inside_of($tagstack, "table")) {
-		$align = "right";      # Force wraptext use. 
-	    } else {
 		$align = "bottom";	# This is html's default so it's ours too.
-	    }
 	}
 	#
 	&Apache::lonxml::debug("Alignemnt = $align");
@@ -2785,11 +2819,18 @@ 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;
@@ -2871,6 +2912,8 @@ sub start_img {
 						   ['','bottom','middle','top','left','right'],$token,5);
 	$currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
 						   ['', 'parbox', 'parpic'], $token, 2);
+	$currentstring .=&Apache::edit::select_arg('Encyrpt URL:','encrypturl',
+						   ['no','yes'], $token, 2);
 	$currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
 	my $src=    &Apache::lonxml::get_param('src',$parstack,$safeeval);
 	my $alt=    &Apache::lonxml::get_param('alt',$parstack,$safeeval);
@@ -2888,7 +2931,7 @@ sub start_img {
 	my $ctag=&Apache::edit::get_new_args($token,$parstack,
 					     $safeeval,'src','alt','align',
 					     'TeXwidth','TeXheight', 'TeXwrap',
-					     'width','height');
+					     'width','height','encrypturl');
 	my ($nsrc,$nwidth,$nheight)=
 	    ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
 	my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
@@ -2930,7 +2973,7 @@ sub start_img {
 sub end_img {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring = '';
@@ -2948,7 +2991,7 @@ sub start_applet {
 					   undef,1);
     &Apache::lonxml::extlink($archive);
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	if ($env{'browser.appletsuppress'} ne 'on') {
 	    $currentstring = &Apache::lonenc::encrypt_ref($token,
 							  {'code'=>$code,
@@ -2981,7 +3024,7 @@ sub start_applet {
 sub end_applet {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];
     } elsif ($target eq 'tex') {
     } 
@@ -2994,7 +3037,7 @@ sub start_embed {
     my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
     &Apache::lonxml::extlink($src);
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	if ($env{'browser.embedsuppress'} ne 'on') {
 	    $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
 	} else {
@@ -3013,7 +3056,7 @@ sub start_embed {
 sub end_embed {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {  
     } 
@@ -3033,7 +3076,7 @@ sub start_param {
     my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
     &Apache::lonxml::extlink($src);
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	my %toconvert;
 	my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
 	if ($src) { $toconvert{'src'}= $src; }
@@ -3052,7 +3095,7 @@ sub start_param {
 sub end_param {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
     } 
@@ -3090,7 +3133,7 @@ sub end_allow {
 sub start_frameset {
     my ($target,$token) = @_;
     my $currentstring = '';	# Close any pending para.
-    if ($target eq 'web') { 
+    if ($target eq 'web' || $target eq 'webgrade') { 
 	if (!$Apache::lonxml::registered &&
 	    $env{'request.state'} eq 'published') {
 	    $currentstring.='<head>'.
@@ -3126,7 +3169,7 @@ sub start_frameset {
 sub end_frameset {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];
     }
     return $currentstring;
@@ -3136,7 +3179,7 @@ sub end_frameset {
 sub start_xmp {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\begin{verbatim}';
@@ -3147,7 +3190,7 @@ sub start_xmp {
 sub end_xmp {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\end{verbatim}';
@@ -3159,10 +3202,11 @@ sub end_xmp {
 sub start_pre {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# close off pending <p>
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\begin{verbatim}';
+	&Apache::lonxml::disable_LaTeX_substitutions();
     } 
     return $currentstring;
 }
@@ -3170,10 +3214,11 @@ sub start_pre {
 sub end_pre {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring .= '\end{verbatim}';
+	&Apache::lonxml::enable_LaTeX_substitutions();
     }
     return $currentstring;
 }
@@ -3182,7 +3227,7 @@ sub end_pre {
 sub start_insert {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
 	$currentstring .= '<b>'.$display.'</b>';;
     }
@@ -3192,7 +3237,7 @@ sub start_insert {
 sub end_insert {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= '';
     }
     return $currentstring;
@@ -3202,7 +3247,7 @@ sub end_insert {
 sub start_externallink {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
 	$currentstring .= '<b>'.$display.'</b>';;
     }
@@ -3212,7 +3257,7 @@ sub start_externallink {
 sub end_externallink {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= '';
     }
     return $currentstring;
@@ -3242,7 +3287,7 @@ sub end_blankspace {
 sub start_abbr {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3251,7 +3296,7 @@ sub start_abbr {
 sub end_abbr {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3261,7 +3306,7 @@ sub end_abbr {
 sub start_acronym {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3270,7 +3315,7 @@ sub start_acronym {
 sub end_acronym {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3280,7 +3325,7 @@ sub end_acronym {
 sub start_area {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3289,7 +3334,7 @@ sub start_area {
 sub end_area {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3299,7 +3344,7 @@ sub end_area {
 sub start_base {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     }
     return $currentstring;
@@ -3308,7 +3353,7 @@ sub start_base {
 sub end_base {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3318,7 +3363,7 @@ sub end_base {
 sub start_bdo {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3327,7 +3372,7 @@ sub start_bdo {
 sub end_bdo {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3337,7 +3382,7 @@ sub end_bdo {
 sub start_bgsound {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3346,7 +3391,7 @@ sub start_bgsound {
 sub end_bgsound {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3356,7 +3401,7 @@ sub end_bgsound {
 sub start_blink {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3365,7 +3410,7 @@ sub start_blink {
 sub end_blink {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3375,7 +3420,7 @@ sub end_blink {
 sub start_blockquote {
     my ($target,$token) = @_;
     my $currentstring = &end_p();	# Close any unclosed <p>
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];     
     } 
     return $currentstring;
@@ -3384,7 +3429,7 @@ sub start_blockquote {
 sub end_blockquote {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3394,7 +3439,7 @@ sub end_blockquote {
 sub start_button {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3403,7 +3448,7 @@ sub start_button {
 sub end_button {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3413,7 +3458,7 @@ sub end_button {
 sub start_caption {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3422,7 +3467,7 @@ sub start_caption {
 sub end_caption {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3432,7 +3477,7 @@ sub end_caption {
 sub start_col {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3441,7 +3486,7 @@ sub start_col {
 sub end_col {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3451,7 +3496,7 @@ sub end_col {
 sub start_colgroup {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3460,7 +3505,7 @@ sub start_colgroup {
 sub end_colgroup {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3470,7 +3515,7 @@ sub end_colgroup {
 sub start_del {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3479,7 +3524,7 @@ sub start_del {
 sub end_del {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3489,7 +3534,7 @@ sub end_del {
 sub start_fieldset {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3498,7 +3543,7 @@ sub start_fieldset {
 sub end_fieldset {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3508,7 +3553,7 @@ sub end_fieldset {
 sub start_frame {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3517,7 +3562,7 @@ sub start_frame {
 sub end_frame {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3527,7 +3572,7 @@ sub end_frame {
 sub start_iframe {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3536,7 +3581,7 @@ sub start_iframe {
 sub end_iframe {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3546,7 +3591,7 @@ sub end_iframe {
 sub start_ins {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3555,7 +3600,7 @@ sub start_ins {
 sub end_ins {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3565,7 +3610,7 @@ sub end_ins {
 sub start_isindex {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3574,7 +3619,7 @@ sub start_isindex {
 sub end_isindex {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3584,7 +3629,7 @@ sub end_isindex {
 sub start_keygen {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3593,7 +3638,7 @@ sub start_keygen {
 sub end_keygen {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3603,7 +3648,7 @@ sub end_keygen {
 sub start_label {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3612,7 +3657,7 @@ sub start_label {
 sub end_label {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3622,7 +3667,7 @@ sub end_label {
 sub start_layer {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3631,7 +3676,7 @@ sub start_layer {
 sub end_layer {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3641,7 +3686,7 @@ sub end_layer {
 sub start_legend {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3650,7 +3695,7 @@ sub start_legend {
 sub end_legend {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3660,7 +3705,7 @@ sub end_legend {
 sub start_link {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
 					    undef,1);
 	&Apache::lonxml::extlink($href);
@@ -3672,7 +3717,7 @@ sub start_link {
 sub end_link {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3682,7 +3727,7 @@ sub end_link {
 sub start_marquee {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3691,7 +3736,7 @@ sub start_marquee {
 sub end_marquee {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3701,7 +3746,7 @@ sub end_marquee {
 sub start_multicol {
     my ($target,$token) = @_;
     my $currentstring = &end_p();	# Close any pending <p>
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];     
     } 
     return $currentstring;
@@ -3710,7 +3755,7 @@ sub start_multicol {
 sub end_multicol {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3720,7 +3765,7 @@ sub end_multicol {
 sub start_nobr {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     }  elsif ($target eq 'tex') {
 	$currentstring='\mbox{';
@@ -3731,7 +3776,7 @@ sub start_nobr {
 sub end_nobr {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     }   elsif ($target eq 'tex') {
 	$currentstring='}';
@@ -3743,7 +3788,7 @@ sub end_nobr {
 sub start_noembed {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3752,7 +3797,7 @@ sub start_noembed {
 sub end_noembed {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3762,7 +3807,7 @@ sub end_noembed {
 sub start_noframes {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3771,7 +3816,7 @@ sub start_noframes {
 sub end_noframes {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3781,7 +3826,7 @@ sub end_noframes {
 sub start_nolayer {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3790,7 +3835,7 @@ sub start_nolayer {
 sub end_nolayer {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3800,7 +3845,7 @@ sub end_nolayer {
 sub start_noscript {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3809,7 +3854,7 @@ sub start_noscript {
 sub end_noscript {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3819,7 +3864,7 @@ sub end_noscript {
 sub start_object {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3828,7 +3873,7 @@ sub start_object {
 sub end_object {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3838,7 +3883,7 @@ sub end_object {
 sub start_optgroup {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3847,7 +3892,7 @@ sub start_optgroup {
 sub end_optgroup {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3857,7 +3902,7 @@ sub end_optgroup {
 sub start_samp {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	$currentstring='\texttt{';
@@ -3868,7 +3913,7 @@ sub start_samp {
 sub end_samp {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } elsif ($target eq 'tex') {
 	$currentstring='}';
@@ -3880,7 +3925,7 @@ sub end_samp {
 sub start_server {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3889,7 +3934,7 @@ sub start_server {
 sub end_server {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3899,7 +3944,7 @@ sub end_server {
 sub start_spacer {
     my ($target,$token) = @_;
     my $currentstring = &end_p();	# Close off any open <p> tag.
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring .= $token->[4];     
     } 
     return $currentstring;
@@ -3908,7 +3953,7 @@ sub start_spacer {
 sub end_spacer {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3918,7 +3963,7 @@ sub end_spacer {
 sub start_span {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3927,7 +3972,7 @@ sub start_span {
 sub end_span {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3937,7 +3982,7 @@ sub end_span {
 sub start_tbody {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3946,7 +3991,7 @@ sub start_tbody {
 sub end_tbody {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3956,7 +4001,7 @@ sub end_tbody {
 sub start_tfoot {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3965,7 +4010,7 @@ sub start_tfoot {
 sub end_tfoot {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3975,7 +4020,7 @@ sub end_tfoot {
 sub start_thead {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -3984,7 +4029,7 @@ sub start_thead {
 sub end_thead {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -3994,7 +4039,7 @@ sub end_thead {
 sub start_var {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } elsif ($target eq 'tex') {
 	$currentstring = '\textit{'; 
@@ -4005,7 +4050,7 @@ sub start_var {
 sub end_var {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];
     } elsif ($target eq 'tex') {
 	$currentstring = '}'; 
@@ -4017,7 +4062,7 @@ sub end_var {
 sub start_wbr {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[4];     
     } 
     return $currentstring;
@@ -4026,7 +4071,7 @@ sub start_wbr {
 sub end_wbr {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = $token->[2];    
     } 
     return $currentstring;
@@ -4035,7 +4080,7 @@ sub end_wbr {
 #-- <hideweboutput> tag
 sub start_hideweboutput {
     my ($target,$token) = @_;
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	&Apache::lonxml::startredirection();     
     } 
     return '';
@@ -4044,7 +4089,7 @@ sub start_hideweboutput {
 sub end_hideweboutput {
     my ($target,$token) = @_;
     my $currentstring = '';
-    if ($target eq 'web') {
+    if ($target eq 'web' || $target eq 'webgrade') {
 	$currentstring = &Apache::lonxml::endredirection();    
     } 
     return '';