不清楚这个代码是做什么的，特别是（）里面的，比如小弟我点击“中国”然后是显示中国综合信息，然后在点视频就是中国视频，然后小弟我直接点日本，就是日本视频，检查他代码也没用

<div class="sort" id="sort2">
<div class="area" id="area2"><span>类别:</span>
<ul>
<li><span id='sortlili' onclick="tiao('16')">不限</span>
<span onclick="tiao1('60','52')" title='音乐'>音乐</span>
<span onclick="tiao1('61','52')" title='视频'>视频</span>
<span onclick="tiao1('62','52')" title='门户'>门户</span>
<span onclick="tiao1('63','52')" title='商业'>商业</span>
<span onclick="tiao1('64','52')" title='交友'>交友</span>
<span onclick="tiao1('65','52')" title='游戏'>游戏</span>
<span onclick="tiao1('66','52')" title='动漫'>动漫</span>
<span onclick="tiao1('67','52')" title='新闻'>新闻</span>
<span onclick="tiao1('68','52')" title='明星'>明星</span>
<span onclick="tiao1('69','52')" title='购物'>购物</span>
<span onclick="tiao1('70','52')" title='图片'>图片</span>
<span onclick="tiao1('71','52')" title='旅游'>旅游</span>
<span onclick="tiao1('72','52')" title='教育'>教育</span>
<span onclick="tiao1('73','52')" title='体育'>体育</span>
<span onclick="tiao1('74','52')" title='文化'>文化</span>
<span onclick="tiao1('75','52')" title='搜索'>搜索</span>
<span onclick="tiao1('76','52')" title='美食'>美食</span>
<span onclick="tiao1('77','52')" title='女性'>女性</span>
<span onclick="tiao1('78','52')" title='博客'>博客</span>
<span onclick="tiao1('79','52')" title='生活'>生活</span></li><li class='undis' id='other2'>
<span onclick="tiao1('80','52')" title='政府'>政府</span>
<span onclick="tiao1('81','52')" title='汽车'>汽车</span>
<span onclick="tiao1('82','52')" title='创意'>创意</span>
<span onclick="tiao1('83','52')" title='时尚'>时尚</span>
<span onclick="tiao1('84','52')" title='艺术'>艺术</span>
<span onclick="tiao1('85','52')" title='网络'>网络</span>
<span onclick="tiao1('86','52')" title='品牌'>品牌</span>
<span onclick="tiao1('89','52')" title='杂志'>杂志</span>
<span onclick="tiao1('94','52')" title='素材'>素材</span>
<span onclick="tiao1('95','52')" title='工具'>工具</span>
<span onclick="tiao1('96','52')" title='企业'>企业</span>
<span onclick="tiao1('97','52')" title='银行'>银行</span>
<span onclick="tiao1('98','52')" title='手机'>手机</span>
<span onclick="tiao1('99','52')" title='摄影'>摄影</span>
<span onclick="tiao1('104','52')" title='外贸'>外贸</span></li>
</ul>
</div>
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