protected function renderCalendarDayOptions($writer, $selected = null)
{
$days = $this->getDropDownDayOptions();
$writer->addAttribute('id', $this->getClientID() . TControl::CLIENT_ID_SEPARATOR . 'day');
$writer->addAttribute('name', $this->getUniqueID() . TControl::ID_SEPARATOR . 'day');
$writer->addAttribute('class', 'datepicker_day_options');
if ($this->getReadOnly() || !$this->getEnabled(true)) {
$writer->addAttribute('disabled', 'disabled');
}
$writer->renderBeginTag('select');
$this->renderDropDownListOptions($writer, $days, $selected);
$writer->renderEndTag();
}