推荐一个javascript写的树形菜单dtree
以下是关键特性
Unlimited number of levels
Can be used with or without frames
Remembers the state of the tree between pages ()
Possible to have as many trees as you like on a page
All major browsers suported
Internet Explorer 5+
Netscape 6+
Opera 7+
Mozilla
Generates XHTML 1.0 strict validated output
Alternative images for each node
演示地址：http://destroydrop.com/javascripts/tree/
下载地址：http://destroydrop.com/javascripts/tree/dtree.zip
相关文档：
/*
* To change this template, choose Tools | Templates
* and open the template in the editor
*/
var File = {
name:'',
path:'',
ext:'',
cfiles:[],
attributes:{
......
//关闭,父窗口弹出对话框,子窗口直接关闭
this.Response.Write("<script language=javascript>window.close();");
//关闭,父窗口和子窗口都不弹出对话框,直接关闭
this.Response.Write("");
this.Response.Write("{top.opener =null;top.close();}");
this.Response.Write("");
//弹出窗口刷新当前页面width=20 ......
/*
* JavaScript对象就是一组属性（方法）的集合
* 在该语言中如果变量名或方法名不符合声明规范，
* 则一定得用方括号“ [] ”引用它
*
*/
/**
* <1.>该语句声明了一个class1类，class1相当于构造方法，又叫构造器
* 也可说声明了一个class1方法
......
