JS 无限级 Select效果实现代码(json格式)

演示地址: http://demo.jb51.net/js/2011/js_select/index.htm
数据
复制代码 代码如下:
var data=[
{id:1,name:"前端开发",pid:0},
{id:2,name:"CSS",pid:1},
{id:3,name:"JS",pid:1},
{id:4,name:"HTML",pid:1},
{id:5,name:"数据库",pid:0},
{id:6,name:"SQLServer",pid:5},
{id:7,name:"MYSql",pid:5},
{id:8,name:"Oracle",pid:5},
{id:9,name:"PLSQL",pid:8}
];

无限级 select demo1
复制代码 代码如下:
var demo1=Doc.Get("demo1");
var chg=function(obj){
if(obj.options.length>1){
obj.selectedIndex=0;
demo1.appendChild(obj);
}
}
var sel1=new Select(data,chg);
var _arr=sel1.getDom();
for(var i=0;i<_arr.length;i++){
demo1.appendChild(_arr[i]);
}

无限级 select demo2
复制代码 代码如下:
var demo2=Doc.Get("demo2");
var chg=function(obj){
if(obj.options.length>1){
obj.selectedIndex=0;
demo2.appendChild(obj);
}
}
var sel=new Select(data,chg);
var _arr=sel.getDom(9);
for(var i=0;i<_arr.length;i++){
demo2.appendChild(_arr[i]);
}