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Javascript 中的 网站上面有这种切换效果


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<div class="pic"> <a href="http://tech.163.com/discover/"><img src="http://cimg.163.com/tech/2006/1/17/200601171557008cee7.jpg" alt="颠覆丛林动物生存法则" width="240" height="180" border="0" /></a> </div>
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<h2><a href="http://tech.163.com/special/00091MNJ/itobserve015.html">WAPI并非贸易阴谋</a></h2>
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