Fix up studygroups update functions

booking.admin.inc

@@ -242,6 +242,13 @@ function booking_admin() {
 	'#maxlength' => 3,
 	'#default_value' => variable_get('booking_readinggroup_id','0'),
 	);	
+	$form['misc']['booking_publish_readinggroups'] = array (
+	'#type' => 'radios',
+	'#title' => t('Display reading group colours on the Who\'s Coming page?'),
+	'#description' => t('Select whether to publish reading group colours.'),
+	'#options' => array (0 => t('No'), t('Yes')),
+	'#default_value' => variable_get('booking_publish_readinggroups', 0),
+	);	
 	$form['misc']['booking_csv_exclude_fields'] = array (
 	'#type' => 'textfield',
 	'#title' => t('Fields to exclude from CSV report'),