/**
* Constructor
* @param string $pix short icon name
* @param string $alt alternative text
* @param string $component emoticon image provider
* @param array $attributes explicit HTML attributes
*/
public function __construct($pix, $alt, $component = 'moodle', array $attributes = array())
{
if (empty($attributes['class'])) {
$attributes['class'] = 'emoticon';
}
parent::__construct($pix, $alt, $component, $attributes);
}
