public function radioButton($model, $attribute, $options = array())
{
$name = isset($options['name']) ? $options['name'] : CHtml::getInputName($model, $attribute);
$value = CHtml::getAttributeValue($model, $attribute);
if (!array_key_exists('value', $options)) {
$options['value'] = '1';
}
$checked = "{$value}" === "{$options['value']}";
if (!array_key_exists('id', $options)) {
$options['id'] = CHtml::getInputId($model, $attribute);
}
return CHtml::radio($name, $checked, $options);
}