很独特的弹性下拉导航菜单_菜单导航特效

弹性十足的个性化导航菜单，鼠标点击后像弹簧一样弹开，缓慢稳定结束，菜单里可以放上图片和文字，或者是列表内容，基于CSS+JS实现，比较实用。

<html> 
<head> 
<meta http-equiv="Content-Type" mrc="text/html; charset=gb2312" /> 
<title>弹性导航菜单</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; 
    width:220px; 
    height:20px; 
    z-index:1; 
    background-color: #999900; 
} 
#hor2 { 
    position:absolute; 
    left:320px; 
    top:40px; 
    width:220px; 
    height:20px; 
    z-index:2; 
    background-color: #FFCC00; 
} 
#hor3 { 
    position:absolute; 
    left:320px; 
    top:60px; 
    width:220px; 
    height:20px; 
    z-index:3; 
    background-color: #99CC00; 
} 
#board1 { 
    position:absolute; 
    left:320px; 
    top:40px; 
    width: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; 
    width:220px; 
    height:120px; 
    z-index:-90; 
    background-color: #333333; 
    visibility: hidden; 
} 
#board3 { 
    position:absolute; 
    width:220px; 
    height:120px; 
    z-index:-80; 
    left: 320px; 
    top: 80px; 
    background-color: #333333; 
    visibility: hidden; 
} 
#hor4 { 
    position:absolute; 
    left:320px; 
    top:80px; 
    width:220px; 
    height:20px; 
    z-index:4; 
    background-color: #99CCCC; 
} 
#board4 { 
    position:absolute; 
    left:320px; 
    top:100px; 
    width: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()">ASP</div> 
<div id="hor2" onclick="re(2);huke()">PHP</div> 
<div id="hor3" onclick="re(3);huke()">DELPHI</div> 
<div id="hor4" onclick="re(4);huke()">AJAX</div> 
<div id="board1">本栏提供精品ASP源码下载。</div> 
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<div id="board3">网站与老婆有什么不同？</div> 
<div id="board4">Ajax是一种新型的WEB编程脚本，大家都很喜欢啊……
<a href="/" target="_blank">mb5u.com</a></div> 
</body> 
</html>

所属频道：菜单导航特效/更新时间：2010-05-22

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