public function getChildCategories($catId, $titleMax)
 {
     $categories = array();
     $query = "\n\t\t\t\tSELECT c.id, c.name as title, c.alias\n\t\t\t\tFROM #__k2_categories c\n\t\t\t\tWHERE\n\t\t\t\t\tc.published = 1\n\t\t\t\t\tAND c.parent = {$catId}\n\t\t\t";
     $this->db->setQuery($query);
     $rows = $this->db->loadObjectList();
     foreach ($rows as $category) {
         $categories[$category->id] = $category;
         // // category url
         // $slug = $category->alias ? $category->id.':'.$category->alias : $category->id;
         // $category->url = JRoute::_( ContentHelperRoute::getCategoryRoute($slug) );
         $category->url = urldecode(JRoute::_(K2HelperRoute::getCategoryRoute($category->id . ':' . urlencode($category->alias))));
         // category title truncate
         $category->title = YtUtils::shorten($category->title, $titleMax);
     }
     return $categories;
 }