test partial form update

booking.variety_form.inc

@@ -48,7 +48,7 @@ function booking_variety_regn_form($node, &$form_state)
       //'wrapper' => 'booking_variety_session_wrapper',
       //'callback' => 'booking_variety_session_callback',
 
-      'wrapper' => 'booking_variety_session_form_wrapper',
+      'wrapper' => 'booking_variety_session_fieldset_wrapper',
       'callback' => 'booking_variety_session_form_callback',
     ),	      
   );
@@ -56,6 +56,8 @@ function booking_variety_regn_form($node, &$form_state)
   $form['variety-sessions'] = array(
     '#type' => 'fieldset',
     '#title' => 'Select Variety Sessions',
+    '#prefix' => '<div id="booking_variety_session_fieldset_wrapper">',
+    '#suffix' => '</div>'
   );  
 
   //for each entry in the variety timeslot table, create a new form select item