仿OutLook或者QQ的菜单

<strong><font color=#008000>代码如下: <br></font></strong><textarea id=Angelia onmouseover=this.select(); style="WIDTH: 90%" rows=12>&lt;html&gt;
&lt;head&gt;
&lt;title&gt;仿OutLook或者QQ的菜单&lt;/title&gt;
&lt;meta http-equiv='Content-Type' content='text/html; charset=gb2312'&gt;
&lt;style type='text/css'&gt;
.folder1 {text-align:center; background: #00A4E1; border: 2px outset; background-image:url(Images/skin/folder_bg.gif); border-color: #00BBFF #0077FF #FFFFFF #00BBFF; cursor: hand; font-size: 9pt}
.folder2 {text-align:center; background: #20C1FF; border: 2px outset; background-image:url(Images/skin/folder_bg.gif); border-color: #00BBFF #0077FF #0077FF #60D3FF; cursor: hand; font-size: 9pt}
.foldercont{background: #D9ECF4; border: 1px outset; border-color: #B0D8FF #0077FF #0077FF #B0D8FF; font-size: 9pt; cursor: default;}
&lt;/style&gt;
&lt;SCRIPT LANGUAGE=javascript&gt;
onload=function(){
var lstr = ""
for (var i=0; i&lt;30; i++) lstr+= "haha..&lt;br&gt;";
var lofolder = new outlookfolder(null,335,100,15);
lofolder.addfolder("菜单1","1..&lt;br&gt;2..1..&lt;br&gt;2..1..&lt;br&gt;2..1..&lt;br&gt;2..1..&lt;br&gt;2..1..&lt;br&gt;2..1..&lt;br&gt;2..1..&lt;br&gt;2..1..&lt;br&gt;2..1..&lt;br&gt;2..1..&lt;br&gt;2..1..&lt;br&gt;2..1..&lt;br&gt;2..1..&lt;br&gt;2..1..&lt;br&gt;2..1..&lt;br&gt;2..&lt;br&gt;2..&lt;br&gt;2..&lt;br&gt;2..&lt;br&gt;2..&lt;br&gt;2..&lt;br&gt;2..&lt;br&gt;2..&lt;br&gt;2..&lt;br&gt;2..&lt;br&gt;2..&lt;br&gt;2..&lt;br&gt;2..&lt;br&gt;2..&lt;br&gt;2..&lt;br&gt;2..&lt;br&gt;2..&lt;br&gt;2..&lt;br&gt;2..&lt;br&gt;2..");
lofolder.addfolder("菜单2",lstr);
lofolder.addfolder("菜单3");
lofolder.addfolder("菜单4");
lofolder.addfolder("菜单5");
lofolder.showfolderX(0);
}
//[容器,高,宽,展开速度]
function outlookfolder(aoP,aih,aiw,ait){
if (aih==null) aih=200;
if (aiw==null) aiw="100%";
if (ait==null) ait=10;
var loMain  = document.createElement("&lt;span style='overflow:hidden;height:"+aih+";width:"+aiw+"'&gt;&lt;/span&gt;");
var lsUniqueID = loMain.uniqueID;
var loSlide = document.createElement("span");
loSlide.innerHTML = "&lt;button onmouseout='"+lsUniqueID+".SlideClickStop()' onmousedown='"+lsUniqueID+".SlideClickStart();"+lsUniqueID+".SlideCilckup()' style='position:absolute;display:none;width:10;height:10'&gt;&lt;/button&gt;&lt;button onmouseout='"+lsUniqueID+".SlideClickStop()' onmousedown='"+lsUniqueID+".SlideClickStart();"+lsUniqueID+".SlideCilckdown()' style='position:absolute;display:none;width:10;height:10'&gt;&lt;/button&gt;";
var liContH = aih;
if (aoP==null){
document.body.appendChild(loMain);
document.body.appendChild(loSlide);
}else{
aoP.appendChild(loMain);
aoP.appendChild(loSlide);
}
//增加一个目录[名字,内容]
loMain.addfolder = function(str,cont){
var loPar = document.createElement("SPAN");
loPar.innerHTML = "&lt;span onclick='"+lsUniqueID+".showme(this)' style='overflow:hidden;width:100%;' class='folder1'&gt;&lt;/span&gt;&lt;span style='position:relative;overflow:hidden;width:100%;height:1' class='foldercont'&gt;&lt;/span&gt;";
this.appendChild(loPar);
loPar.children[0].innerHTML = (str==null?"　":str);
loPar.children[1].innerHTML = (cont==null?"　":cont);
liContH -= parseInt(loPar.children[0].offsetHeight);
}
//打开／关闭第x个目录夹
loMain.showfolderX = function(aix){
loMain.showme(loMain.children[aix].children[0])
}
//打开/关闭当前obj所在的目录
loMain.showme = function(obj){
if (loMain.moving) return;
loMain.moving = true;
if (obj.bOpen){
obj.bOpen = false;
loMain.closefolder(obj.parentElement.children[1]);
obj.className = 'folder1';
}else{
obj.bOpen = true;
loMain.openfolder(obj.parentElement.children[1]);
obj.className = 'folder2';
var lxfolders = loMain.children;
for (var i=0; i&lt;lxfolders.length; i++){
var loChild = lxfolders[i].children[0];
if(loChild.uniqueID!=obj.uniqueID){
lxfolders[i].children[1].style.height=1;
loChild.bOpen = false;
loChild.className = 'folder1';
}
}
}
loMain.SlideItemsAction(obj.parentElement.children[1]);
}
//为目录内容设置Slide
var loSlideItem = null;
var lbSlideing = false;
loMain.SlideCilckdown = function(){  //向下滚动
loSlideItem.scrollTop += 2;
if (!lbSlideing&amp;&amp;loSlideItem.scrollTop&lt;loSlideItem.scrollHeight) setTimeout(lsUniqueID+'.SlideCilckdown()',1)
}
loMain.SlideCilckup = function(){  //向上滚动
loSlideItem.scrollTop -= 2;
if (!lbSlideing&amp;&amp;loSlideItem.scrollTop&gt;0) setTimeout(lsUniqueID+'.SlideCilckup()',1)
}
loMain.SlideClickStart = function(){ //允许开始滚动
lbSlideing=false;
}
loMain.SlideClickStop = function(){  //强制停止滚动
lbSlideing=true;
}
loMain.SlideItemsAction = function(obj){
var loUp   = loSlide.children[0];
var loDown = loSlide.children[1];
if (obj.scrollHeight&lt;=liContH||obj.parentElement.children[0].bOpen!=true){
loUp.style.display="none";
loDown.style.display="none";
}else{
loSlideItem = obj;
var lxOffset = getTrueOffset(obj);
var lileft = lxOffset[0]+obj.offsetWidth-20;
var litop  = lxOffset[1]+obj.offsetHeight+5;
with(loUp.style){
display="";
left=lileft;
top=litop;
}
with(loDown.style){
display="";
left=lileft;
top=litop+liContH-40;
}
}
}
//逐渐关闭obj所在的内容显示
loMain.closefolder = function(obj,ai){
if (ai==null) ai=liContH;
if (ai&lt;ait){ obj.style.height=1; ai=1}
if (ai&gt;1){
obj.style.height = ai;
ai -= ait;
setTimeout(lsUniqueID+'.closefolder('+obj.uniqueID+','+ai+')',1)
return;
}
loMain.moving = false;
}
//逐渐打开obj所在的内容显示
loMain.openfolder = function(obj,ai){
if (ai==null) ai=1;
if (liContH&gt;ai){
obj.style.height = ai;
ai += ait;
setTimeout(lsUniqueID+'.openfolder('+obj.uniqueID+','+ai+')',1)
return;
}
loMain.moving = false;
}
function getTrueOffset(e){
var x=0; var y=0;
if(!e)return [x,y];
while(e){
x+=parseInt(e.offsetLeft);
y+=parseInt(e.offsetTop);
e=e.offsetParent;
}
return [x,y];
}
return loMain;
}
&lt;/SCRIPT&gt;
&lt;/head&gt;
&lt;body&gt;
&lt;/body&gt;
&lt;/html&gt;
</textarea><br><input onclick="runEx('Angelia')" type=button value=运行代码> <input onclick="CopyCode(FindObj('Angelia'));" type=button value=拷贝代码> <input onclick=SaveCode(Angelia); type=button value=保存代码>[Ctrl+A 全选 提示:你可先修改部分代码,再点运行代码]