public function fieldset_open($attributes = array(), $legend = null)
	{
		$fieldset_open = '<fieldset ' . array_to_attr($attributes) . ' >';

		! is_null($legend) and $attributes['legend'] = $legend;
		if ( ! empty($attributes['legend']))
		{
			$fieldset_open.= "\n<legend>".$attributes['legend']."</legend>";
		}

		return $fieldset_open;
	}