jQuery使用serialize获取form表单数据，中文编码问题

<form>
    <input type="input" id="a1" name="a1" value=""/><br>
    <select>
          <option value="0">选项一</option>
          <option vlaue="1">选项二</option>
    </select>
     <input id="submit" type="button" value="提交" name/>
</form>

<script>
    $(‘#submit‘).click(function(){
        var t = $(‘form‘).serialize();
        document.write(t);//输入中文将被转码
        //解决
        var d = decodeURIComponent(t);
        document.write(d);//转码
    })
</script>