获取li下面的div里的innerhtml这样写为什么不行 求帮助

lis[i].onclick=function(e){

e=e||window.event;

e.stopPropagation();

var id=this.id;

loginStateList.style.display="none";

var lis2=document.getElementById("id");

stateText.innerHTML=lis2.getElementsByTagName("div")[1].innerHTML;

loginStateShow.className="";

loginStateShow.className="login-state-show "+id;