/**
* Get the singleton instance of Xhtml.
* @return Xhtml
*/
public static function instance($file = NULL, $config_name = 'default')
{
if (self::$_instance === NULL) {
// Create a new instance
self::$_instance = new self($file);
// Set instance of Head class
self::$head = Head::instance(array(), $config_name);
// Set defaults from config
$default = Kohana::config('xhtml.' . $config_name);
foreach (array('doctype', 'langcode', 'htmlatts', 'body') as $key) {
if (isset($default[$key]) and !empty($default[$key])) {
self::${$key} = $default[$key];
}
}
}
return self::$_instance;
}