1."CNL Tree Menu"为无限级树形，兼容以下版本的浏览器：IE5.0+, FF1.06+, Opera8.5+ ……
2.HTML,CSS,JavaScript代码相互分离(即数据，风格，脚本三者分离)，可应用于多种场合，易于维护3.修改；更换树形图标，只需要修改CSS文件.
4.通过W3C校验(XHtml1-Strict,CSS1.0).
5.最后更新：2006-2-13
6.演示地址：http://cnlei.iecn.net/mycode/CNLTreeMenu/Ver1.0.2/index.html
7.下载地址：http://cnlei.iecn.net/mycode/CNLTreeMenu/CNLTreeMenuVer1.0.2.rar
实例演示：
- CNL Tree Menu Ver1.02
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Author：CNLei,枫岩
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MySite：www.cnlei.net, cnlei.iecn.net
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E-Mail：cnlei.y.l#gail.com (请将#换成@)
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Intro：
- "CNL Tree Menu"为无限级树形，兼容以下版本的浏览器：IE5.0+, FF1.06+, Opera8.5+ ……
- HTML,CSS,JavaScript代码相互分离(即数据，风格，脚本三者分离)，可应用于多种场合，易于维护修改；更换树形图标，只需要修改CSS文件.
- 通过W3C校验(XHtml1-Strict,CSS1.0).
- 最后更新：2006-2-13
- 下载地址：点击下载
CSS Code：
.CNLTreeMenu img.s {cursor:pointer;vertical-align:middle;}
.CNLTreeMenu ul {padding:0;}
.CNLTreeMenu li {list-style:none;padding:0;}
.Closed ul {display:none;}
.Child img.s {background:none;cursor:default;}
#CNLTreeMenu1 ul {margin:0 0 0 17px;}
#CNLTreeMenu1 img.s {width:20px;height:15px;}
#CNLTreeMenu1 .Opened img.s {background:url(skin1/opened.gif) no-repeat 0 0;}
#CNLTreeMenu1 .Closed img.s {background:url(skin1/closed.gif) no-repeat 0 0;}
#CNLTreeMenu1 .Child img.s {background:url(skin1/child.gif) no-repeat 3px 5px;}
#CNLTreeMenu2 ul {margin:0 0 0 17px;}
#CNLTreeMenu2 img.s {width:17px;height:15px;}
#CNLTreeMenu2 .Opened img.s {background:url(skin2/opened.gif) no-repeat 4px 6px;}
#CNLTreeMenu2 .Closed img.s {background:url(skin2/closed.gif) no-repeat 3px 6px;}
#CNLTreeMenu2 .Child img.s {background:url(skin2/child.gif) no-repeat 3px 5px;}
#CNLTreeMenu3 ul {margin:0 0 0 17px;}
#CNLTreeMenu3 img.s {width:34px;height:18px;}
#CNLTreeMenu3 .Opened img.s {background:url(skin3/opened.gif) no-repeat 0 1px;}
#CNLTreeMenu3 .Closed img.s {background:url(skin3/closed.gif) no-repeat 0 1px;}
#CNLTreeMenu3 .Child img.s {background:url(skin3/child.gif) no-repeat 13px 2px;}
JavaScript Code：
/*****************************
JavaScript Code for CNLTreeMenu
Version: Ver 1.02
Author : CNLei, 枫岩
E-Mail : CNLei.Y.L@gmail.com
MySite : http://www.cnlei.net
Passed : XHtml 1.0, CSS 2.0, IE5.0+, FF1.0+, Opera8.5+
Update : 2006-2-12
*****************************/
function Ob(o){
var o=document.getElementById(o)?document.getElementById(o):o;
return o;
}
function Hd(o) {
Ob(o).style.display="none";
}
function Sw(o) {
Ob(o).style.display="";
}
function ExCls(o,a,b,n){
var o=Ob(o);
for(i=0;i<n;i++) {o=o.parentNode;}
o.className=o.className==a?b:a;
}
function CNLTreeMenu(id,TagName0) {
this.id=id;
this.TagName0=TagName0==""?"li":TagName0;
this.AllNodes = Ob(this.id).getElementsByTagName(TagName0);
this.InitCss = function (ClassName0,ClassName1,ClassName2,ImgUrl) {
this.ClassName0=ClassName0;
this.ClassName1=ClassName1;
this.ClassName2=ClassName2;
this.ImgUrl=ImgUrl || "css/s.gif";
this.ImgBlankA ="<img src=\"css/s.gif\" class=\"s\" onclick=\"ExCls(this,'"+ClassName0+"','"+ClassName1+"',1);\" alt=\"展开/折叠\" />";
this.ImgBlankB ="<img src=\"css/s.gif\" class=\"s\" />";
for (i=0;i<this.AllNodes.length;i++ ) {
this.AllNodes[i].className==""?this.AllNodes[i].className=ClassName1:"";
this.AllNodes[i].innerHTML=(this.AllNodes[i].className==ClassName2?this.ImgBlankB:this.ImgBlankA)+this.AllNodes[i].innerHTML;
}
}
this.SetNodes = function (n) {
var sClsName=n==0?this.ClassName0:this.ClassName1;
for (i=0;i<this.AllNodes.length;i++ ) {
this.AllNodes[i].className==this.ClassName2?"":this.AllNodes[i].className=sClsName;
}
}
}