代码简介：这个滑动门真的太好了，在雅虎网站扒下来的，会动画展开的滑动门，你见过没？过一段时间会自动合上，在yahoo首页的邮箱登录处有这种效果，有兴趣可以比较一下。
代码内容：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-
transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>鼠标滑动带动画下拉展开的滑动门代码_网页代码站(www.webdm.cn)</title>
<meta http-equiv="content-type" content="text/html;charset=gb2312">
<style type="text/css">
body{ margin:0px; padding:0px; font-size:14px; line-height:18px; color:#111111;}
a:link,a:visited{ display:block; 90px; height:25px; margin:0px; padding:0px; text-align:center; line-
height:25px; font-size:14px; font-weight:bold; text-decoration:none; color:#111111;}
a:hover{ font-size:14px; font-weight:bold; text-decoration:underline; color:#111111;}
#b{ display:block; 500px; height:500px; margin:0px auto; padding:0px; padding-top:50px;}
#container{ display:block; 300px; height:117px; margin:0px; padding:0px; background-color:#E8F3FF;
border:1px solid #95CAFF; text-align:center; overflow:hidden;}
#nav{ display:block; 300px; height:30px; margin:0px; margin-top:85px; padding:0px;}
.navB{ display:block; float:left; 90px; height:25px; background-color:#FFFFFF; border:1px solid #95CAFF;
margin:0px; margin-left:6px; padding:0px; text-align:center; line-height:25px;}
.navB_Cur{display:block; float:left; 90px; height:30px; background-color:#FFFFFF; border:1px solid
#95CAFF; border-bottom:none; margin:0px; margin-left:6px; padding:0px; text-align:center; line-height:25px;
position:relative; z-index:1000;}
.content{ display:none;}
.content_Cur{ display:block; 266px; height:70px; margin:0px; margin-top:0px; margin-left:6px; *margin-
left:0px; padding:10px; background-color:#FFFFFF; border:1px solid #95CAFF;}
</style>
</head>
<body>
<div id="b">
<div id="container">
<div id="nav">
<span id="newsBtn" class="navB" onmouseover="changeTab
('newsBtn','homeBtn','circleBtn','news','home','circle');" onmouseout="delay();"><a href="#" target="_self">网
页代码站</a></span>
<span id="homeBtn" class="navB" onmouseover="changeTab
('homeBtn','newsBtn','circleBtn','home','news','circle');" onmouseout="delay();"><a href="#" target="_self">最
新更新</a></span>
<span id="circleBtn" class="navB" onmouseover="changeTab
('circleBtn','homeBtn','newsBtn','circle','home','news');" onmouseout="delay();"><a href="#" target="_self">下
载排行</a></span>
</div>
<div id="news" class="content" onmouseout="delay();" onmouseover="removeDelay();">网页代码站提供高质量的代
码下载供学习，希望记住我们的域名：WebDn.CN</div>
<div id="home" class="content" onmouseout="delay();" onmouseover="removeDelay();">网页代码站最新更新的代码
</div>
<div id="circle" class="content" onmouseout="delay();" onmouseover="removeDelay();">下载排行，睢一瞧……
</div>
</div>
<div id="tt"></div>
</div>
<script language="javascript">
function $(id)
{
return document.getElementById(id);
}
var state="closed";
var time=3000;
var openH=222;
var closeH=108;
var activeH=116;
var myMar;
var myDelay;
function openIng(){
if(activeH!=openH-9){
activeH+=parseInt((openH-activeH)*0.1);
$("container").style.height=activeH+"px";
$("tt").innerHTML=activeH+" | "+closeH;
}
else{
clearInterval(myMar);
state="opened";
$("tt").innerHTML=state;
}
}
function startOpen(){
myMar=setInterval(openIng,5);
state="opening";
}
function closeTab(){
$("newsBtn").className="navB";
$("homeBtn").className="navB";
$("circleBtn").className="navB";
$("news").className="content";
$("home").className="content";
$("circle").className="content";
}
function closeIng(){
if(activeH!=closeH+9){
activeH+=parseInt((closeH-activeH)*0.1);
$("container").style.height=activeH+"px";
$("tt").innerHTML=activeH+" | "+closeH;
}
else{
clearInterval(myMar);
closeTab();
state="closed";
$("tt").innerHTML=state;
}
}
function startClose(){
myMar=setInterval(closeIng,5);
state="closing";
}
function delay(){
if(state=="opened"){
myDelay=setTimeout(startClose,time);
}
}
function removeDelay(){
clearTimeout(myDelay);
}
function changeTab(actBtn,sndBtn,thdBtn,actlay,sndlay,thdlay){
$(actBtn).className="navB_Cur";
$(sndBtn).className="navB";
$(thdBtn).className="navB";
$(actlay).className="content_Cur";
$(sndlay).className="content";
$(thdlay).className="content";
removeDelay();
if(state=="closed"){
startOpen();
}
}
</script>
</body>
</html>
<br>
<p><a href="http://www.webdm.cn">网页代码站</a> - 最专业的代码下载网站 - 致力为中国站长提供有质量的代码！</p>
代码来自：http://www.webdm.cn/webcode/f256cdfc-d818-4d48-ad46-f791ffe8b71e.html