public static function alert($content, $htmlOptions = array(), $close = '&times')
    {
        ArrayHelper::addValue('class', 'alert-box', $htmlOptions);

        ob_start();
        echo '<div data-alert ' . \CHtml::renderAttributes($htmlOptions) . '>';
        echo $content;
        if ($close !== false)
            echo static::closeLink($close);
        echo '</div>';
        return ob_get_clean();
    }