From f6991f9a6be244597a9a7427decf9e649d768a8e Mon Sep 17 00:00:00 2001
From: Nathan Coad <nathan@thecoads.com>
Date: Thu, 26 May 2016 11:53:52 +1000
Subject: [PATCH] new approach

---
 booking.emails.inc | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/booking.emails.inc b/booking.emails.inc
index 882f7c5..9f2b721 100644
--- a/booking.emails.inc
+++ b/booking.emails.inc
@@ -43,6 +43,7 @@ function booking_manual_email()
 			'#default_value' => "---",
 			'#ajax' => array(
 				'callback' => '_booking_manual_email_selecttype_dropdown_callback',
+				'wrapper' => 'manual-email-attendees-items',
 				'event' => 'change',
 			),
 	);
@@ -226,7 +227,24 @@ function _booking_manual_email_generate_options() {
 }
 
 function _booking_manual_email_selecttype_dropdown_callback($form, &$form_state) {
-
+	$select_type = $form_state['values']['select-type'];
+	$new_default_values = array();
+	$options = _booking_manual_email_generate_options();
+	
+  // generate new default values
+	// @todo use a function for this
+	if ($select_type == "Unpaid") {
+		$new_default_values = array("1814" => TRUE);
+	} else {
+		$new_default_values = array("1815" => TRUE);
+	}	
+	
+	$form['table']['#options'] = $options;
+	$form['table']['#default_value'] = $new_default_values;
+	$form['table'] = form_process_tableselect($form['table']);
+	return $form['table'];
+	
+	
   //$courseid = $form_state['values']['courseid'];
   //$scheduleid = $form_state['values']['scheduleid'];