网站上面有这种切换效果
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<div class="pic"> <a href="http://tech.163.comhttps://img.qb5200.com/download-x/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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<div class="pic"> <a href="http://tech.163.com/special/00091MNJ/itobserve015.html"><img src="http://cimg.163.com/tech/2006/1/17/2006011711483290a60.jpg" alt="WAPI并非贸易阴谋" width="240" height="180" border="0" /></a> </div>
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<p>近日国家做出决定：“将向其他的国内及国外企业公布该算法”。事实证明中国WAPI标准并非是贸易阴谋。<img src="/newimg/i2.gif" alt="详细" width="3" height="5" /> <a href="http://tech.163.com/special/00091MNJ/itobserve015.html" class="cDRed">详细</a></p>
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<li><a href="javascript:setFocus1(4);" target="_self">4</a></li>
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<li>2</li>
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<li><a href="javascript:setFocus1(4);" target="_self">4</a></li>
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<li><a href="javascript:setFocus1(1);" target="_self">1</a></li>
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<li>3</li>
<li><a href="javascript:setFocus1(4);" target="_self">4</a></li>
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<li><a href="javascript:setFocus1(2);" target="_self">2</a></li>
<li><a href="javascript:setFocus1(3);" target="_self">3</a></li>
<li>4</li>
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