代码简介：【酷】JS仿FLASH效果的跳动下拉菜单
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>【酷】JS仿FLASH效果的跳动下拉菜单_网页代码站(www.webdm.cn)</title>
<style type="text/css">
<!--
a:link,a:visited { text-decoration: none; color: #666666 }
a:hover { text-decoration: underline }
#hor1 {
position:absolute;
left:320px;
top:20px;
220px;
height:20px;
z-index:1;
background-color: #999900;
}
#hor2 {
position:absolute;
left:320px;
top:40px;
220px;
height:20px;
z-index:2;
background-color: #FFCC00;
}
#hor3 {
position:absolute;
left:320px;
top:60px;
220px;
height:20px;
z-index:3;
background-color: #99CC00;
}
#board1 {
position:absolute;
left:320px;
top:40px;
220px;
height:120px;
z-index:-100;
background-color: #333333;
visibility: hidden;
}
body,td,th {
font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: 12px;
color: #FFFFFF;
font-weight: bold;
}
body {
background-color: #666666;
}
#board2 {
position:absolute;
left:320px;
top:60px;
220px;
height:120px;
z-index:-90;
background-color: #333333;
visibility: hidden;
}
#board3 {
position:absolute;
220px;
height:120px;
z-index:-80;
left: 320px;
top: 80px;
background-color: #333333;
visibility: hidden;
}
#hor4 {
position:absolute;
left:320px;
top:80px;
220px;
height:20px;
z-index:4;
background-color: #99CCCC;
}
#board4 {
position:absolute;
left:320px;
top:100px;
220px;
height:120px;
z-index:-70;
background-color: #333333;
visibility: hidden;
}
-->
</style>
<script type="text/javascript">
lastNo=0
function re(menu_no){
if(lastNo!=menu_no){
cur=menu_no+1
lastNo=menu_no
rest()
}else{
cur=100
}
document.getElementById("board"+menu_no).style.visibility="visible"
}
function rest(){
for(i=1;i<=4;i++){
document.getElementById("hor"+i).style.top=20*i;
document.getElementById("board"+i).style.visibility="hidden"
}
menu_num=4;
act=1
height=120+20
speed=0;
posY=0;
}
function huke(){
if(act==1&&cur<100){
speed=(height-posY)*0.69+speed*0.6
posY+=speed
for(i=cur;i<=menu_num;i++){
document.getElementById("hor"+i).style.top=posY+(i-2)*20
}
if(Math.abs(height-posY)<0.5){
for(i=cur;i<=menu_num;i++){
document.getElementById("hor"+i).style.top=height+(i-2)*20
}
act=0
}
setTimeout("huke()",50)
}
}
</script>
</head>
<body>
<div id="hor1" onclick="re(1);huke()">News</div>
<div id="hor2" onclick="re(2);huke()">Populor</div>
<div id="hor3" onclick="re(3);huke()">Sports</div>
<div id="hor4" onclick="re(4);huke()">Woman</div>
<div id="board1">1.由AS而想起Javascript<br />2.用Jscript写ASP有没有先天性的不足？<br />3.没有了。</div>
<div id="board2">1.xhtml+css真的来了吗？<br />2.Flash取代传统网站<br />3.Flash何时才能连接数据库？</div>
<div id="board3">1.程序员与小姐的10个相同。<br />2.中国的程序员与中国的足球？</div>
<div id="board4">1.二十一世纪最缺的是什么?人才<br />
<a href="http://www.webdm.cn" target="_blank">http://www.webdm.cn</a>
<a href="/" target="_blank">http://www.webdm.cn</a></div>
</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/e94b3210-24bb-41fe-8fef-bb8389ac8d29.html