public String toQString() {

		StringBuffer str = new StringBuffer();

		for (int i = 0; i < FIELD_NAME.length; ++i) {
			if (get(FIELD_NAME[i]) == null || get(FIELD_NAME[i]).equals(""))
				continue;
			if (i != 0)
				str.append("&");
			try {
				str.append(FIELD_NAME[i] + "="
						+ URLEncoder.encode(get(FIELD_NAME[i]), "UTF-8"));
			} catch (UnsupportedEncodingException e) {
				// Shouldn't happen
				throw new Error(e);
			}
		}

		return str.toString();

	}