--- loncom/xml/lontexconvert.pm	2006/03/27 20:40:42	1.71
+++ loncom/xml/lontexconvert.pm	2006/05/18 22:13:50	1.74
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # TeX Conversion Module
 #
-# $Id: lontexconvert.pm,v 1.71 2006/03/27 20:40:42 albertel Exp $
+# $Id: lontexconvert.pm,v 1.74 2006/05/18 22:13:50 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -42,10 +42,7 @@ package Apache::lontexconvert;
 use strict;
 use tth();
 use vars qw($errorstring);
-use Apache();
-use Apache::lonmsg();
-use Apache::lonxml();
-use Apache::lonmenu();
+#use Apache::lonxml();
 use Apache::lonlocal;
 use Apache::lonnet;
 
@@ -53,19 +50,24 @@ use Apache::lonnet;
 
 sub init_tth {
     my $options=$env{'course.'.$env{'request.course.id'}.'.tthoptions'};
+    if ($options =~ /\S/) {
+	$options = ' '.$options;
+    } else {
+	undef($options);
+    }
     if ($env{'browser.mathml'}) {
 	&tth::ttminit();
 	if ($env{'browser.unicode'}) {
-	    &tth::ttmoptions('-L -u1 '.$options);
+	    &tth::ttmoptions('-L -u1'.$options);
 	} else {
-	    &tth::ttmoptions('-L -u0 '.$options);
+	    &tth::ttmoptions('-L -u0'.$options);
 	}
     } else {
 	&tth::tthinit();
 	if ($env{'browser.unicode'}) {
-	    &tth::tthoptions('-L -u1 '.$options);
+	    &tth::tthoptions('-L -u1'.$options);
 	} else {
-	    &tth::tthoptions('-L -u0 '.$options);
+	    &tth::tthoptions('-L -u0'.$options);
 	}
     }
 }
@@ -190,6 +192,16 @@ sub jsMath_converted {
     }
 }
 
+sub init_math_support {
+    &init_tth();
+    &Apache::lontexconvert::jsMath_reset();
+    if ($env{'environment.texengine'} eq 'jsMath' ||
+	$env{'form.texengine'}        eq 'jsMath' ) {
+	return &Apache::lontexconvert::jsMath_header();
+    }
+    return;
+}
+
 sub mimetex_converted {
     my $texstring=shift;
     my $displaystyle=&displaystyle($texstring);