--- loncom/homework/chemresponse.pm	2005/04/07 06:56:21	1.50
+++ loncom/homework/chemresponse.pm	2005/05/25 21:45:07	1.53
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # chemical equation style response
 #
-# $Id: chemresponse.pm,v 1.50 2005/04/07 06:56:21 albertel Exp $
+# $Id: chemresponse.pm,v 1.53 2005/05/25 21:45:07 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -121,9 +121,10 @@ $molecule
 CHEMPAGE
     $body=&HTML::Entities::encode($body,'<>&"');
     $body=~s/\n/ /g;
+    my $nothing=&Apache::lonhtmlcommon::javascript_nothing();
     my $docopen=&Apache::lonhtmlcommon::javascript_docopen();
     my $result=<<CHEMINPUT;
-<input type="button" value="Draw Molecule" onclick="javascript:editor=window.open('/rat/adm/empty.html','jmeedit','width=500,height=500,menubar=yes,scrollbars=no,resizable=yes');editor.$docopen;editor.document.write('$body');editor.document.close();editor.focus()" />
+<input type="button" value="Draw Molecule" onclick="javascript:editor=window.open('$nothing','jmeedit','width=500,height=500,menubar=yes,scrollbars=no,resizable=yes');editor.$docopen;editor.document.write('$body');editor.document.close();editor.focus()" />
 CHEMINPUT
     return $result;
 }
@@ -364,8 +365,11 @@ sub start_reactionresponse {
 	}
 	if (  &Apache::response::show_answer() ) {
 	    my $ans=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
-	    $ans=~s/(\\|\')/\\$1/g;
-	    $Apache::inputtags::answertxt{$id}=&Apache::run::run("return &chemparse('$ans');",$safeeval);
+	    if (!$Apache::lonxml::default_homework_loaded) {
+		&Apache::lonxml::default_homework_load($safeeval);
+	    }
+	    @Apache::scripttag::parser_env = @_;
+	    $Apache::inputtags::answertxt{$id}=&Apache::run::run("return &chemparse(q\0$ans\0);",$safeeval);
 	}
     } elsif ($target eq "edit") {
 	$result .=&Apache::edit::tag_start($target,$token);