function clearbox_form_alter(&$form, $form_state, $form_id) {
  if ($form_id == 'lightbox2_auto_image_handling_settings_form') {
	//valasztas kiegeszitese
    $automatic_options = array(
	  0 => t('Disabled'),
	  1 => t('Lightbox'),
	  2 => t('Lightbox grouped'),
	  3 => t('Slideshow'),
	  4 => t('HTML content'),
	  5 => t('HTML content grouped'),
	  //uj valasztas folvetele
	  //ezeket fol kell tuntetni az *auto_image_handling.js* fajlban
	  6 => t('Clearbox'),
	  7 => t('Clearbox grouped'),
	);
	//hozzaadas a listahoz
	$form['handler_options']['image_node_options']['lightbox2_image_node']  = array(
	  '#type' => 'select',
	  '#title' => t('Automatic handler for image nodes'),
	  '#options' => $automatic_options,
	  '#description' => t('Choose how URLs for image nodes will be automatically handled.'),
	  '#default_value' => variable_get('lightbox2_image_node', ''),
	);
  }
}
//utvonal mentese
$path = drupal_get_path('module', 'clearbox');
 
//utvonal atadasa a clearbox.js fajlnak
$clearbox_js_settings = array(
  'path' => $path,
  );
drupal_add_js(array('clearbox' => $clearbox_js_settings), 'setting');
 
//Clearbox3 beillesztese az oldalba
$js_location = variable_get('clearbox_js_location', 'header');
drupal_add_js($path .'/clearbox.js', 'module', $js_location);

clearbox.js
...
var settings=Drupal.settings.clearbox;
var CB_ScriptDir=setting.path+'/clearbox';
...