javascript变量的问题？

请问各位！这是什么样 的变量？怎么读取，追加数据？
var temproots={
menu:[
  {id:"0",name:"企业站点首页",url:"javascript(0);",children:[]},
  {id:"1",name:"企业站点相关",children:
    {id:"1.1",name:"站点服务器",children:
    [
        {id:"1.1.1",name:"服务器基本信息",url:"javascript(0)",children[]},
        {id:"1.1.2",name:"后台访问纪录",url:"javascript(0)",children[]}
    ]}
    {id:"1.2",name:"站点设置",url:"javascript(0)",children:
    [
        {id:"1.2.1",name:"访客纪录",url:"javascript(0)",children[]},
        {id:"1.2.2",name:"网络优化设置",url:"javascript(0)",children[]}, 
        {id:"1.2.3",name:"IPC备案信息",url:"javascript(0)",children[]} 
    ]}
  ]}
  {id:"3",name:"站点数据库",children:
  [
    {id:"3.1",name:"数据库备份/还原",url:"javascript(0)",children[]},
    {id:"3.2",name:"数据库压缩",url:"javascript(0)",children[]}
  ]}   
]}