protected function processChildren($form)
    {
        $result = array();
        // If this field has children - process them
        foreach ($form as $name => $child) {
            if ($this->isProcessableElement($child)) {
                $childModel = $this->createJsModel($child);
                if (null !== $childModel) {
                    $result[$name] = $childModel;
                }
            }
        }

        return $result;
    }