function currency_options($default = 0)
    {
        global $user, $config;

        $default = ($default) ? $default : $donate->config['default_currency'];

        $s_currency_options = '';

        foreach ($user->lang['currency_code'] as $code => $name)
        {
            $selected = ($code == $default) ? ' selected="selected"' : '';
            $s_currency_options .= '<option value="' . $code . '"' . $selected . '>' . $name . ' (' . $code . ")</option>\n";
        }

        return $s_currency_options;
    }