/**
* Ensure that the ID attribute is rendered and registers the javascript code
* for initializing the active control.
*/
protected function addAttributesToRender($writer)
{
parent::addAttributesToRender($writer);
if ($this->getEnableClientScript() && $this->getAutoPostBack() && $this->getPage()->getClientSupportsJavaScript()) {
$this->getActiveControl()->registerCallbackClientScript($this->getClientClassName(), $this->getPostBackOptions());
}
}
