请教大家，谁帮我看一下这个代码的JS为什么显示不出来

Question

就是01.JS文件 层是那个<dv i="#tabcontainer"〉

今日特价

特价门票

特惠住宿

01.js文件是
var totalItems=3;
var subMenu1="";
subMenu1+='

';
subMenu1+='

';
subMenu1+='芥末鸭掌
';
subMenu1+='价格：￥10
';
subMenu1+='价格：￥10
';
subMenu1+='价格：￥10
';
subMenu1+='

';
var subMenu2="";
subMenu2+='W3C has released HTML5.
';
subMenu2+='W3C has released HTML5.
';
subMenu2+='W3C has released HTML5.
';
subMenu2+='W3C has released HTML5.
';
var subMenu3="";

subMenu3+='W3C has released HTML5.
';
subMenu3+='W3C has released HTML5.
';
subMenu3+='W3C has released HTML5.
';

function init(){
//获取子菜单项div元素，并设置其内容
var oSubItem=document.getElementById("subMenu");
oSubItem.innerHTML=subMenu1;
for(var i=1;i<=totalItems;i++){
var oMainItem=document.getElementById("mainItem"+i);
oMainItem.style.left=68*(i-1)+35+"px";
if(i==1){oMainItem.style.backgroungImage="url(images/tab2.GIF)";
}
}
}
init();

function displaySubItem(theobj){
for(var i=1;i<=totalItems;i++){
var oMainItem=document.getElementById("mainItem"+i);
oMainItem.style.backgroungImage="url(images/tab1.GIF)";
}

var oSubItem=document.getElementById("subMenu");
var mainItemIndex=theobj.getAttribute("id").toString().substring(8);
oSubItem.innerHTML=eval("subMenu"+mainItemIndex);
theobj.style.backgroungImage="url(images/tab1.GIF)";

}

Answer 1

调试下，看看元素有没有找到。