public static function createSnippet($sSnptName)
    {
        $sSnptRoot = AppHelper::getInstance()->getComponentRoot('snippets');
        $SnptFile  = $sSnptRoot.DIRECTORY_SEPARATOR
            .strtolower($sSnptName).'.php';
        if (is_readable($SnptFile)) {
            return new Snippet($SnptFile);
        }
        return null;
    }