protected function init()
{
parent::init();
$this->dimension = new SearchCategory();
$this->name = Piwik::translate('Actions_WidgetSearchCategories');
$this->documentation = Piwik::translate('Actions_SiteSearchCategories1') . '<br/>' . Piwik::translate('Actions_SiteSearchCategories2');
$this->metrics = array('nb_visits', 'nb_pages_per_search', 'exit_rate');
$this->order = 20;
$this->subcategoryId = 'Actions_SubmenuSitesearch';
}