文档介绍：<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: #00;
}
#hor3 {
position:absolute;
left:320px;
top:60px;
width:220px;
height:20px;
z-index:3;
background-color: #00;
}
#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: #;
}
#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
}
("board"+menu_no).="visible"
}
function rest(){
for(i=1;i<=4;i++){
("hor"+i).=20*i;
("board"+i).="hidden"
}
menu_num=4;
act=1
height=120+20
speed=0;
posY=0;
}
function huke(){
if(act==1&&cur<100){
speed=(height-posY)*+speed*
posY+=speed
for(i=cur;i<=menu