--- loncom/xml/lonxml.pm	2024/07/04 15:50:20	1.531.2.25
+++ loncom/xml/lonxml.pm	2024/12/28 22:47:34	1.531.2.28
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # XML Parser Module 
 #
-# $Id: lonxml.pm,v 1.531.2.25 2024/07/04 15:50:20 raeburn Exp $
+# $Id: lonxml.pm,v 1.531.2.28 2024/12/28 22:47:34 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -768,6 +768,7 @@ sub init_safespace {
   $safeeval->reval('use LONCAPA::LCMathComplex;');
   $safeeval->permit_only(":default");
   $safeeval->permit("entereval");
+  $safeeval->permit("hintseval");
   $safeeval->permit(":base_math");
   $safeeval->permit("sort");
   $safeeval->permit("time");
@@ -1633,6 +1634,21 @@ sub renderingoptions {
     return $output;
 }
 
+sub setmode_javascript {
+    return <<"ENDSCRIPT";
+<script type="text/javascript">
+// <![CDATA[
+function setmode(form,probmode) {
+    var initial = form.problemmode.value;
+    form.problemmode.value = probmode;
+    form.submit();
+    form.problemmode.value = initial;
+}
+// ]]>
+</script>
+ENDSCRIPT
+}
+
 sub inserteditinfo {
       my ($filecontents,$filetype,$filename,$symb,$itemtitle,$folderpath,$uri,$action) = @_;
       $filecontents = &HTML::Entities::encode($filecontents,'<>&"');
@@ -1708,7 +1724,7 @@ FULLPAGE
       my %lt=&Apache::lonlocal::texthash('st' => 'Save and Edit',
 					 'vi' => 'Save and View',
 					 'dv' => 'Discard Edits and View',
-					 'un' => 'undo',
+					 'un' => 'Undo',
 					 'ed' => 'Edit');
       my $spelllink = &Apache::lonhtmlcommon::spelllink('xmledit','filecont');
       my $textarea_events = &Apache::edit::element_change_detection();
@@ -1733,7 +1749,7 @@ FULLPAGE
           $onclick{$item} = 'onclick="is_submit=true;setmode(this.form,'."'$item'".')"';
       }
       unless ($uri =~ m{^/uploaded/}) {
-          $undo = '<input type="submit" name="Undo" accesskey="u" value="'.$lt{'un'}.'" '.
+          $undo = '<input type="button" name="undo" accesskey="u" value="'.$lt{'un'}.'" '.
                   $onclick{'undo'}.' />'."\n"; 
       }
       $initialize .= &setmode_javascript();