三级下拉菜单的js实现代码_导航菜单

function list(idstr){
var name1="subtree"+idstr;
var name2="img"+idstr;
var objectobj=document.all(name1);
var imgobj=document.all(name2);
//alert(imgobj);
if(objectobj.style.display=="none"){
for(i=1;ivar name3="img"+i;
var name="subtree"+i;
var o=document.all(name);
if(o!=undefined){
o.style.display="none";
var image=document.all(name3);
//alert(image);
image.src="admin/images/ico04.gif";
if(idstr>12&&idstrdocument.getElementById("subtree11").style.display="";
document.getElementById("img11").src="admin/images/ico03.gif";
}
}
}
objectobj.style.display="";
imgobj.src="admin/images/ico03.gif";
}
else{
objectobj.style.display="none";
imgobj.src="admin/images/ico04.gif";
}
}

function tupian(idt){
var nametu="xiaotu"+idt;
var tp = document.getElementById(nametu);
tp.src="admin/images/ico05.gif";//图片ico05为白色的正方形
for(var i=1;i{
var nametu2="xiaotu"+i;
if(i!=idt*1)
{
var tp2=document.getElementById('xiaotu'+i);
if(tp2!=undefined)
{tp2.src="admin/images/ico06.gif";}//图片ico06为蓝色的正方形
}
}
}