/**
* Add rating style class name to the class attribute
* when {@link setReadOnly ReadOnly} property is true and when the
* {@link setCssClass CssClass} property is empty.
* @param THtmlWriter renderer
*/
public function render($writer)
{
$writer->addAttribute('id', $this->getClientID());
$this->getPage()->getClientScript()->registerPostBackControl($this->getClientClassName(), $this->getPostBackOptions());
parent::render($writer);
}
