javascript 新闻切换技术

<！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>脚本之家www.jb51.net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"; document.getElementById（"focusPic2nav"）.style.display="none"; document.getElementById（"focusPic3nav"）.style.display="none"; document.getElementById（"focusPic4nav"）.style.display="none"; break; case 2: document.getElementById（"focusPic1"）.style.display="none"; document.getElementById（"focusPic2"）.style.display="block"; document.getElementById（"focusPic3"）.style.display="none"; document.getElementById（"focusPic4"）.style.display="none"; document.getElementById（"focusPic1nav"）.style.display="none"; document.getElementById（"focusPic2nav"）.style.display="block"; document.getElementById（"focusPic3nav"）.style.display="none"; document.getElementById（"focusPic4nav"）.style.display="none"; break; case 3: document.getElementById（"focusPic1"）.style.display="none"; document.getElementById（"focusPic2"）.style.display="none"; document.getElementById（"focusPic3"）.style.display="block"; document.getElementById（"focusPic4"）.style.display="none"; document.getElementById（"focusPic1nav"）.style.display="none"; document.getElementById（"focusPic2nav"）.style.display="none"; document.getElementById（"focusPic3nav"）.style.display="block"; document.getElementById（"focusPic4nav"）.style.display="none"; break; case 4: document.getElementById（"focusPic1"）.style.display="none"; document.getElementById（"focusPic2"）.style.display="none"; document.getElementById（"focusPic3"）.style.display="none"; document.getElementById（"focusPic4"）.style.display="block"; document.getElementById（"focusPic1nav"）.style.display="none"; document.getElementById（"focusPic2nav"）.style.display="none"; document.getElementById（"focusPic3nav"）.style.display="none"; document.getElementById（"focusPic4nav"）.style.display="block"; break; }}</script><img src="http://cimg.163.com/tech/2006/1/18/2006011810122068706.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）"><h2>网易学院05年软件评选结果</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" alt="详细" width="3" height="5" / onclick="javascript:window.open（this.src）;" style="CURSOR: pointer" onload="return imgzoom（this,550）"> 详细<br/><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" / onclick="javascript:window.open（this.src）;" style="CURSOR: pointer" onload="return imgzoom（this,550）"><h2>颠覆丛林动物生存法则</h2> 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" alt="详细" width="3" height="5" / onclick="javascript:window.open（this.src）;" style="CURSOR: pointer" onload="return imgzoom（this,550）"> 详细<br/><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" / onclick="javascript:window.open（this.src）;" style="CURSOR: pointer" onload="return imgzoom（this,550）"><h2>WAPI并非贸易阴谋</h2> 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" / onclick="javascript:window.open（this.src）;" style="CURSOR: pointer" onload="return imgzoom（this,550）"> 详细<br/><img src="http://cimg.163.com/tech/2006/1/17/200601171002503f251.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）"><h2>新视野号探测冥王星特别专题</h2> 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" alt="详细" width="3" height="5" / onclick="javascript:window.open（this.src）;" style="CURSOR: pointer" onload="return imgzoom（this,550）"> 详细<br/>> 更多头图新闻<ul> <li>1</li> <li>2</li> <li>3</li> <li>4</li> </ul> <ul> <li>1</li> <li>2</li> <li>3</li> <li>4</li> </ul> <ul> <li>1</li> <li>2</li> <li>3</li> <li>4</li> </ul> <ul> <li>1</li> <li>2</li> <li>3</li> <li>4</li> </ul></body></html>

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