javascript 新闻切换技术

2019-11-21 01:51:27

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  <html xmlns="http://www.w3.org/1999/xhtml">  <head>  <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />  <title>武林网www.VeVB.COm新闻切换技术</title>  <style type="text/css">    </style>  </head>  <body>   <script language="JavaScript" type="text/javascript">  var nn;  nn=1;  setTimeout('change_img()',6000);  function change_img()  {   if(nn>4) nn=1   setTimeout('setFocus1('+nn+')',6000);   nn++;   tt=setTimeout('change_img()',6000);  }  function setFocus1(i)  {   selectLayer1(i);  }  function selectLayer1(i)  {   switch(i)   {   case 1:   document.getElementById("focusPic1").style.display="block";   document.getElementById("focusPic2").style.display="none";   document.getElementById("focusPic3").style.display="none";   document.getElementById("focusPic4").style.display="none";   document.getElementById("focusPic1nav").style.display="block";   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src="/d/file/p/2019/11-21/e044fcca450d5a394b1e9d93e0363013.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">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="https://www.jb51.net/newimg/i2.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" class="cDRed">详细</a></p>   </div>   <div id="focusPic2" style="display: none ;">   <div class="pic"> <a href="http://tech.163.com/discover/"><img src="/d/file/p/2019/11-21/5bf250989a68ba2517eda33f3d5352e9.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/">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="https://www.jb51.net/newimg/i2.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/" class="cDRed">详细</a></p>   </div>   <div id="focusPic3" style="display: none ;">   <div class="pic"> <a href="http://tech.163.com/special/00091MNJ/itobserve015.html"><img src="/d/file/p/2019/11-21/8d5e7194838b9520d6e7aea57598640a.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">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="https://www.jb51.net/newimg/i2.gif" alt="详细" width="3" height="5" / 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class="more">   <div class="textNum">   <div class="text">> 更多头图新闻</div>   <div class="num bg1" id="focusPic1nav" style="display: block;">   <ul>   <li>1</li>   <li><a href="javascript:setFocus1(2);" target="_self">2</a></li>   <li><a href="javascript:setFocus1(3);" target="_self">3</a></li>   <li><a href="javascript:setFocus1(4);" target="_self">4</a></li>   </ul>   </div>   <div class="num bg2" id="focusPic2nav" style="display: none;">   <ul>   <li><a href="javascript:setFocus1(1);" target="_self">1</a></li>   <li>2</li>   <li><a href="javascript:setFocus1(3);" target="_self">3</a></li>   <li><a href="javascript:setFocus1(4);" target="_self">4</a></li>   </ul>   </div>   <div class="num bg3" id="focusPic3nav" style="display: none;">   <ul>   <li><a href="javascript:setFocus1(1);" target="_self">1</a></li>   <li><a href="javascript:setFocus1(2);" target="_self">2</a></li>   <li>3</li>   <li><a href="javascript:setFocus1(4);" target="_self">4</a></li>   </ul>   </div>   <div class="num 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