protected function renderItems()
    {
        $items = array();
        if (!empty($this->leftItems)) {
            $tItems = array();
            foreach ($this->leftItems as $item) {
                $tItems[] = $this->renderItem($item);
            }
            $items[] = \CHtml::openTag('ul', array('class' => Enum::POS_LEFT)) . implode(
                    "\n",
                    $tItems
                ) . \CHtml::closeTag(
                    'ul'
                );
        }
        if (!empty($this->rightItems)) {
            $tItems = array();
            foreach ($this->rightItems as $item) {
                $tItems[] = $this->renderItem($item);
            }
            $items[] = \CHtml::openTag('ul', array('class' => Enum::POS_RIGHT)) . implode(
                    "\n",
                    $tItems
                ) . \CHtml::closeTag(
                    'ul'
                );
        }

        return \CHtml::tag('section', array('class' => 'top-bar-section'), implode("\n", $items), true);
    }