这段代码什么意思？

[a358037801]

function showsubmenu(sid){
whichEl = document.getElementById("submenu" + sid);
menuTitle = document.getElementById("menuTitle" + sid);

if((sid > 200) && (sid < 500)){
var allmenuid = new Array('201','202','203','204','205');
}else{
var allmenuid = new Array('200','500','501','502');
}

for(var i = 0; i < allmenuid.length; i++){
if(sid !=i && whichEl.style.display != "block" ){

document.getElementById("submenu" + allmenuid[i]).style.display = 'none';
document.getElementById("menuTitle" + allmenuid[i]).className=menuTitle.className.replace("close","open");
}
}

if (whichEl.style.display == "block"){
whichEl.style.display = 'none';
menuTitle.className=menuTitle.className.replace("close","open");
}else{
whichEl.style.display = 'block';
menuTitle.className=menuTitle.className.replace("open","close");
}
}

[jnzsk]

显示菜单，

[落日听风]

树状结构显示子菜单

[a358037801]

汗
楼上的大哥们
能不能详细解释下
这是什么功能

[坚强的豁着]

看起来像是菜单的功能，你可以运行一下撒。学习JS也要找到注释哟。不好意思能力有限

[wang66111988]

showsubmenu(sid)
显示为sid的子菜单

[linlusheng]

控制显示子菜单