Index: misc/states.js
===================================================================
RCS file: /cvs/drupal/drupal/misc/states.js,v
retrieving revision 1.2
diff -u -p -r1.2 states.js
--- misc/states.js	18 Feb 2010 19:24:55 -0000	1.2
+++ misc/states.js	8 Mar 2010 16:43:31 -0000
@@ -352,7 +352,12 @@ states.State.prototype = {
 
   $(document).bind('state:required', function(e) {
     if (e.trigger) {
-      $(e.target).closest('.form-item, .form-wrapper')[e.value ? 'addClass' : 'removeClass']('form-required');
+      if (e.value) {
+        $(e.target).closest('.form-item, .form-wrapper').find('label').append(Drupal.theme('formRequiredMarker'));
+      }
+      else {
+        $(e.target).closest('.form-item, .form-wrapper').find('label *:last').remove();
+      }
     }
   });
 
@@ -378,6 +383,16 @@ states.State.prototype = {
 }
 
 /**
+ * Formats the marker for required form elements.
+ *
+ * @return
+ *   The formatted text (html).
+ */
+Drupal.theme.prototype.formRequiredMarker = function () {
+  return '<span class="form-required" title="' + Drupal.t('This field is required.') + '">*</span>';
+};
+
+/**
  * These are helper functions implementing addition "operators" and don't
  * implement any logic that is particular to states.
  */