li隔行换色改进版

ghhs（"nav01","li"）; // 鼠标经过时变色
ghhs（"nav02","li","no"）; // 只隔行换色
ghhs（"nav03","li","onclick"）; // 鼠标点击当前标记变色

<！DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" lang="zh-CN" xml:lang="zh-CN"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><meta name="keywords" content="PRcss,xhtml,html,css,js,book,个人主页,无聊,神经,懒惰" /><meta name="description" content="PRcss的个人主页,无聊的,神经的,懒惰的..." /><meta name="Author" content="PRcss,qq:50198763" /><meta name="Copyright" content="本页版权归PRcss所有。All Rights Reserved" /><title>隔行换色 - www.jb51.net 脚本之家</title><script type="text/javascript">// 返回Id、Tagfunction Pid（id,tag）{if（！tag）{return document.getElementById（id）;}else{return document.getElementById（id）.getElementsByTagName（tag）;}}// 隔行换色function ghhs（id,tag,s） {var line=Pid（id,tag）;for （var i=1;i<line.length+1;i++） { line[i-1].className=（i%2>0）？"t1":"t2"; }if（s=="no"）{return;}else if（！s）{for（var i=0;i<line.length;i++） {line[i].onmouseover=function（）{this.tmpClass=this.className;this.className+=" up";}line[i].onmouseout=function（）{this.className=this.tmpClass;}}}else{for（var i=0;i<line.length;i++） {line[i].tmep=i;line[i][s]=function（）{ghhs_tab（this.tmep）;}}}function ghhs_tab（s）{for（var i=0;i<line.length;i++）{if（！line[i].tmpClass）{line[i].tmpClass=line[i].className+=" pr1984_com";}if（s==i）{line[i].className+=" up";}else {line[i].className=line[i].tmpClass;}}}}</script><style type="text/css">.t1 {background:#eee;}.t2 {background:#fff;}.up {background:#ddd;}</style></head><body><ul><li>路过</li><li>asdsad</li><li>asdsad</li><li>asdsad</li></ul><ul><li>无视路过</li><li>asdsad</li><li>asdsad</li><li>asdsad</li></ul><ul><li>踩我</li><li>asdsad</li><li>asdsad</li><li>asdsad</li></ul><script type="text/javascript">ghhs（"nav01","li"）;ghhs（"nav02","li","no"）;ghhs（"nav03","li","onclick"）;</script></body></html>

[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]