uc-jisx0213</option>
                        <option value="euc-kr">euc-kr</option>
                        <option value="gb2312">gb2312</option>
                        <option value="gbk">gbk</option>
                        <option value="gb18030">gb18030</option>
                        <option value="hz">hz</option>
                        <option value="iso2022-jp">iso2022-jp</option>
                        <option value="iso2022-jp-1">iso2022-jp-1</option>
                        <option value="iso