我得js的clearIterva无效。。为什么T Tfunction $(id){ return typeof id=='string'?document.getElementById(id):id;}window.onload=tab;function tab(){ var index=0; var timer=null; var lis=$('notice-tit').getElementsByTagName('li'); var divs=$('notice-con').getElementsByTagName('div'); for(var i=0;i<lis.length;i++) { lis[i].id=i; lis[i].onmouseover=function(){ clearInterval(timer); } } time=setInterval(function(){ //高亮显示当前页签 for(var j=0;j<lis.length;j++){ lis[j].className=''; divs[j].style.display='none'; } divs[index].style.display='block'; lis[index].className='select'; index++; if(index==lis.length) index=0; },2000);}<!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=utf-8" /><link type="text/css" rel="stylesheet" href="css/style.css" /><script type="text/javascript" src="js/javascript.js"></script><title>Tab切换</title></head><body><div id="notice" class="notice"><div id="notice-tit" class="notice-tit"><ul><li class="select"> <a href="#">公告</a></li><li> <a href="#">规则</a></li><li> <a href="#">论坛</a></li><li> <a href="#">安全</a></li><li> <a href="#">公益</a></li></ul></div><div class="notice-con" id="notice-con"><div class="mod" style="display:block"><ul><li><span>[<a href="#">通知</a>]</span><a href="#">哈。。。。。。。。</a></li><li><span>[<a href="#">聚焦</a>]</span><a href="#">呵呵。。。。。。。。。。。</a></li><li><span>[<a href="#">滥用</a>]</span><a href="#">好烦撒打算开店加拉斯角度来看撒娇的啦睡觉</a></li><li><span>[<a href="#">无聊</a>]</span><a href="#">加爱上大手大脚啊数控刀具阿拉斯加油</a></li></ul></div><div class="mod" style="display:none"><ul><li><span>[<a href="#">通知</a>]</span><a href="#">哈哈</a></li><li><span>[<a href="#">聚焦</a>]</span><a href="#">呵呵</a></li><li><span>[<a href="#">滥用</a>]</span><a href="#">好烦</a></li><li><span>[<a href="#">无聊</a>]</span><a href="#">加油</a></li></ul></div><div class="mod" style="display:none"><ul><li><span>[<a href="#">通知</a>]</span><a href="#">哈哈</a></li><li><span>[<a href="#">聚焦</a>]</span><a href="#">呵呵</a></li><li><span>[<a href="#">滥用</a>]</span><a href="#">好烦</a></li><li><span>[<a href="#">无聊</a>]</span><a href="#">加油</a></li></ul></div><div class="mod" style="display:none"><ul><li><span>[<a href="#">通知</a>]</span><a href="#">哈哈</a></li><li><span>[<a href="#">聚焦</a>]</span><a href="#">呵呵</a></li><li><span>[<a href="#">滥用</a>]</span><a href="#">好烦</a></li><li><span>[<a href="#">无聊</a>]</span><a href="#">加油</a></li></ul></div><div class="mod" style="display:none"><ul><li><span>[<a href="#">通知</a>]</span><a href="#">哈哈</a></li><li><span>[<a href="#">聚焦</a>]</span><a href="#">呵呵</a></li><li><span>[<a href="#">滥用</a>]</span><a href="#">好烦</a></li><li><span>[<a href="#">无聊</a>]</span><a href="#">加油</a></li></ul></div></div></body></html>
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