protected function registerSliderClientScript()
{
$page = $this->getPage();
$cs = $page->getClientScript();
$cs->registerPradoScript("slider");
$id = $this->getClientID();
$cs->registerHiddenField($id . '_1', $this->getValue());
$page->registerRequiresPostData($this);
$cs->registerPostBackControl($this->getClientClassName(), $this->getSliderOptions());
}