protected function radioButton()
	{
		$attribute = $this->attribute;
		list($hidden, $radioButton) = $this->getSeparatedSelectableInput();

		echo '<div class="controls">';
		echo ($hidden) ? $hidden . PHP_EOL : '';
		echo '<label class="radio" for="' . $this->getAttributeId($attribute) . '">';
		echo $radioButton . PHP_EOL;
		echo $this->model->getAttributeLabel($attribute);
		echo $this->getError() . $this->getHint();
		echo '</label></div>';
	}