js实现导航菜单点击切换选中时高亮状态——方法二

来源：互联网发布：如何更换淘宝会员名编辑：程序博客网时间：2024/06/08 03:19
<!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><title>选中当前菜单后高亮</title><style type="text/css">.nav {  WIDTH: 100%;   HEIGHT: 60px;   BACKGROUND-COLOR:#000000;  font-family:Arial, Helvetica, sans-serif; font-size:14px;}.nav UL {  PADDING: 0px;   DISPLAY: block;   MARGIN: 0px;   LIST-STYLE-TYPE: none;   HEIGHT: 60px; }.nav LI {  BORDER-RIGHT: #ffffff 1px solid;   DISPLAY: block;   FLOAT: left;   width:200px;  text-align:center;  font-size:14px;}.nav LI A {  DISPLAY: block;   FONT-WEIGHT: none;   COLOR: #ffffff;   LINE-HEIGHT: 60px;   TEXT-DECORATION: none;}.nav LI A:hover {  COLOR:blue;   font-weight:800;  font-size:18px;  BACKGROUND-COLOR:yellow;   TEXT-DECORATION: none;}.current{ color:#ffffff; background:blue;}.nav li#date{ color:#ffffff; PADDING:2px 15px 0; }</style><script language="javascript" type="text/javascript">var $c=function(array){var nArray = [];for (var i=0;i<array.length;i++) nArray.push(array[i]);return nArray;};Array.prototype.each=function(func){for(var i=0,l=this.length;i<l;i++) {func(this[i],i);};};document .getElementsByClassName=function(cn){var hasClass=function(w,Name){var hasClass = false;w.className.split(' ').each(function(s){if (s == Name) hasClass = true;});return hasClass;}; var elems =document.getElementsByTagName("*")||document.all;   var elemList = [];   $c(elems).each(function(e){if(hasClass(e,cn)){elemList.push(e);}   })  return $c(elemList);};function change_bg(obj){var a=document.getElementsByClassName("nav")[0].getElementsByTagName("a");for(var i=0;i<a.length;i++){a[i].className="";}obj.className="current";}</script></head><body><DIV class="nav"> <UL> <LI><A href="#" onclick="change_bg(this)">脚本首页</A></LI> <LI><A href="#" onclick="change_bg(this)">网页特效</A> </LI> <LI><a href="#" class="current" onclick="change_bg(this)">精品脚本</a> </LI> <LI><A href="#" onclick="change_bg(this)">ASP代码</A> </LI> <LI><A href="#" onclick="change_bg(this)">PHP代码</A> </LI> <LI><A href="#" onclick="change_bg(this)">JSP代码</A> </LI> <LI><A href="#" onclick="change_bg(this)">脚本资源</A> </LI> <LI><A href="#" onclick="change_bg(this)">软件下载</A> </LI> </UL></DIV></body></html>
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