public function createHiddenField($name = '', $value = '')
    {
        if ($name == '') {
            $this->errorMessage[] = 'HTML HIDDEN: field name is empty';
            return false;
        }
        $inputId = $name;
        if (substr($name, -2, 2) == "[]") {
            $inputId = substr($name, 0, -2);
        }
        return "\n<input type='hidden' name='" . $name . "' id='" . $inputId . "' value='" . $value . "' />";
    }