javascript 新闻切换技术

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 <div class="pic"> <a href="http://tech.163.com/special/000915SN/soft2005.html" _ewebeditor_ta_href="http%3A%2F%2Ftech.163.com%2Fspecial%2F000915SN%2Fsoft2005.html"><img src="http://cimg.163.com/tech/2006/1/18/2006011810122068706.jpg" _ewebeditor_ta_src="http%3A%2F%2Fcimg.163.com%2Ftech%2F2006%2F1%2F18%2F2006011810122068706.jpg" alt="网易学院05年软件评选结果" width="240" height="180" border="0" / onclick="javascript:window.open(this.src);" style="CURSOR: pointer" onload="return imgzoom(this,550)"></a> </div>  
 <h2><a href="http://tech.163.com/special/000915SN/soft2005.html" _ewebeditor_ta_href="http%3A%2F%2Ftech.163.com%2Fspecial%2F000915SN%2Fsoft2005.html">网易学院05年软件评选结果</a></h2>  
  
经过大家的热情投票和我们的辛劳整理，网易学院2005年年度软件评选结果终于出炉啦。点击进入查看……<img src="/newimg/i2.gif" _ewebeditor_ta_src="%2Fnewimg%2Fi2.gif" alt="详细" width="3" height="5" / onclick="javascript:window.open(this.src);" style="CURSOR: pointer" onload="return imgzoom(this,550)"> <a href="http://tech.163.com/special/000915SN/soft2005.html" _ewebeditor_ta_href="http%3A%2F%2Ftech.163.com%2Fspecial%2F000915SN%2Fsoft2005.html" class="cDRed">详细</a></p>  
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 <div class="pic"> <a href="http://tech.163.com/discover/" _ewebeditor_ta_href="http%3A%2F%2Ftech.163.com%2Fdiscover%2F"><img src="http://cimg.163.com/tech/2006/1/17/200601171557008cee7.jpg" _ewebeditor_ta_src="http%3A%2F%2Fcimg.163.com%2Ftech%2F2006%2F1%2F17%2F200601171557008cee7.jpg" alt="颠覆丛林动物生存法则" width="240" height="180" border="0" / onclick="javascript:window.open(this.src);" style="CURSOR: pointer" onload="return imgzoom(this,550)"></a> </div>  
 <h2><a href="http://tech.163.com/discover/" _ewebeditor_ta_href="http%3A%2F%2Ftech.163.com%2Fdiscover%2F">颠覆丛林动物生存法则</a></h2>  
 <p>群居动物的这种行为颠覆了我们通常认为的，在动物世界通行的 "丛林法则"，动物不都自私，不都是弱肉强食的。<img src="/newimg/i2.gif" _ewebeditor_ta_src="%2Fnewimg%2Fi2.gif" alt="详细" width="3" height="5" / onclick="javascript:window.open(this.src);" style="CURSOR: pointer" onload="return imgzoom(this,550)"> <a href="http://tech.163.com/discover/" _ewebeditor_ta_href="http%3A%2F%2Ftech.163.com%2Fdiscover%2F" class="cDRed">详细</a></p>  
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 <div class="pic"> <a href="http://tech.163.com/special/00091MNJ/itobserve015.html" _ewebeditor_ta_href="http%3A%2F%2Ftech.163.com%2Fspecial%2F00091MNJ%2Fitobserve015.html"><img src="http://cimg.163.com/tech/2006/1/17/2006011711483290a60.jpg" _ewebeditor_ta_src="http%3A%2F%2Fcimg.163.com%2Ftech%2F2006%2F1%2F17%2F2006011711483290a60.jpg" alt="WAPI并非贸易阴谋" width="240" height="180" border="0" / onclick="javascript:window.open(this.src);" style="CURSOR: pointer" onload="return imgzoom(this,550)"></a> </div>  
 <h2><a href="http://tech.163.com/special/00091MNJ/itobserve015.html" _ewebeditor_ta_href="http%3A%2F%2Ftech.163.com%2Fspecial%2F00091MNJ%2Fitobserve015.html">WAPI并非贸易阴谋</a></h2>  
 <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" _ewebeditor_ta_src="%2Fnewimg%2Fi2.gif" alt="详细" width="3" height="5" / onclick="javascript:window.open(this.src);" style="CURSOR: pointer" onload="return imgzoom(this,550)"> <a href="http://tech.163.com/special/00091MNJ/itobserve015.html" _ewebeditor_ta_href="http%3A%2F%2Ftech.163.com%2Fspecial%2F00091MNJ%2Fitobserve015.html" class="cDRed">详细</a></p>  
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 <div class="pic"> <a href="http://tech.163.com/special/00091OSI/horizons.html" _ewebeditor_ta_href="http%3A%2F%2Ftech.163.com%2Fspecial%2F00091OSI%2Fhorizons.html"><img src="http://cimg.163.com/tech/2006/1/17/200601171002503f251.jpg" _ewebeditor_ta_src="http%3A%2F%2Fcimg.163.com%2Ftech%2F2006%2F1%2F17%2F200601171002503f251.jpg" alt="新视野号探测冥王星特别专题" width="240" height="180" border="0" / onclick="javascript:window.open(this.src);" style="CURSOR: pointer" onload="return imgzoom(this,550)"></a> </div>  
 <h2><a href="http://tech.163.com/special/00091OSI/horizons.html" _ewebeditor_ta_href="http%3A%2F%2Ftech.163.com%2Fspecial%2F00091OSI%2Fhorizons.html">新视野号探测冥王星特别专题</a></h2>  
 <p>美国宇航局将于北京时间18日凌晨2时24分发射新视野号探测器，造访这颗人类唯一尚未探测过的行星-冥王星。<img src="/newimg/i2.gif" _ewebeditor_ta_src="%2Fnewimg%2Fi2.gif" alt="详细" width="3" height="5" / onclick="javascript:window.open(this.src);" style="CURSOR: pointer" onload="return imgzoom(this,550)"> <a href="http://tech.163.com/special/00091OSI/horizons.html" _ewebeditor_ta_href="http%3A%2F%2Ftech.163.com%2Fspecial%2F00091OSI%2Fhorizons.html" class="cDRed">详细</a></p>  
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