protected function renderButtonDatePicker($writer)
{
$writer->addAttribute('id', $this->getDatePickerButtonID());
$writer->addAttribute('type', 'button');
$writer->addAttribute('class', $this->getCssClass() . ' TDatePickerButton');
$writer->addAttribute('value', $this->getButtonText());
if (!$this->getEnabled(true)) {
$writer->addAttribute('disabled', 'disabled');
}
$writer->renderBeginTag("input");
$writer->renderEndTag();
}