不间断连续图片滚动效果的制作方法

<!-- 指向链接图片url -->
<base href="http://blog.csdn.net/phphot">
<div id=demo style=overflow:hidden;height:150;;background:#214984;color:#ffffff>
<div id=demo1>
<!-- 定义图片 -->
<img src="images/logo_1.gif">
<img src="images/logo/flashempire.gif">
<img src="images/logo.gif">
<img src="images/logo/5dmedia.gif">
<img src="images/logo/macromedia.gif">
<img src="images/logo/sucaiw.gif">
<img src="images/logo/blueieda.gif">
<img src="images/logo/htmlcn.gif">
<img src="images/logo/fwcn.gif">
</div>
<div id=demo2></div>
</div>
<script>
var speed=30
demo2.innerHTML=demo1.innerHTML
function Marquee(){
if(demo2.offsetTop-demo.scrollTop<=0)
demo.scrollTop-=demo1.offsetHeight
else{
demo.scrollTop++
}
}
var MyMar=setInterval(Marquee,speed)
demo.onmouseover=function() {clearInterval(MyMar)}
demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)}
&lt;/script>
　　制作向下滚动的效果：
　　将上面“制作向上滚动的效果”中的红色字体Js部分替换成：
<script>
var speed=30
demo2.innerHTML=demo1.innerHTML
demo.scrollTop=demo.scrollHeight
function Marquee(){
if(demo1.offsetTop-demo.scrollTop&gt;=0)
demo.scrollTop+=demo2.offsetHeight
else{
demo.scrollTop--
}
}
var MyMar=setInterval(Marquee,speed)
demo.onmouseover=function() {clearInterval(MyMar)}
demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)}
</script>
　　制作向左滚动的效果：
<base href="http://www.it365cn.com">
<div id=demo style=overflow:hidden;height:33;;background:#214984;color:#ffffff>
<table align=left cellpadding=0 cellspace=0 border=0>
<tr>
<td id=demo1 valign=top><img src="images/logo_1.gif"><img src="images/logo/flashempire.gif"><img src="images/logo.gif"><img src="images/logo/5dmedia.gif"><img src="images/logo/macromedia.gif"><img src="images/logo/sucaiw.gif"><img src="images/logo/blueieda.gif"><img src="images/logo/htmlcn.gif"><img src="images/logo/fwcn.gif">
</td>
<td id=demo2 valign=top></td>
</tr>
</table>
</div>
<script>
var speed=30
demo2.innerHTML=demo1.innerHTML
function Marquee(){
if(demo2.offsetWidth-demo.scrollLeft<=0)
demo.scrollLeft-=demo1.offsetWidth
else{
demo.scrollLeft++
}
}
var MyMar=setInterval(Marquee,speed)
demo.onmouseover=function() {clearInterval(MyMar)}
demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)}
&lt;/script>
　　制作向右滚动的效果：
　　将上面“制作向左滚动的效果”中的红色字体Js部分替换成：
<script>
var speed=30
demo2.innerHTML=demo1.innerHTML
demo.scrollLeft=demo.scrollWidth
function Marquee(){
if(demo.scrollLeft<=0)
demo.scrollLeft+=demo2.offsetWidth
else{
demo.scrollLeft--
}
}
var MyMar=setInterval(Marquee,speed)
demo.onmouseover=function() {clearInterval(MyMar)}
demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)}
&lt;/script>
　　制作的方法就简单的介绍完成了。

<!--连接数据库的不间断连续滚动的图片-->
<div id="marquees">
<%set rs=server.createobject("adodb.recordset")
sql="select * from code"
rs.open sql,conn,1,1
do while not rs.eof
%>
<a href="javascript:"><%=rs("code_title")%></a><br>
<br>
<%rs.movenext
loop%>
</div>
<script language="JavaScript">

marqueesHeight=200;
stopscroll=false;

with(marquees){
style.;
style.height=marqueesHeight;
style.overflowX="visible";
style.overflowY="hidden";
noWrap=true;
onmouseover=new Function("stopscroll=true");
onmouseout=new Function("stopscroll=false");
}
document.write('<div id="templayer" style="position:absolute;z-index:1;visibility:hidden"></div>');

preTop=0; currentTop=0;

function init(){
templayer.innerHTML="";
while(templayer.offsetHeight<marqueesHeight){
templayer.innerHTML+=marquees.innerHTML;
}
marquees.innerHTML=templayer.innerHTML+templayer.innerHTML;
setInterval("scrollUp()",20);//越大越慢
}
document.body.onload=init;

function scrollUp(){
if(stopscroll==true) return;
preTop=marquees.scrollTop;
marquees.scrollTop+=1;
if(preTop==marquees.scrollTop){
marquees.scrollTop=templayer.offsetHeight-marqueesHeight;
marquees.scrollTop+=1;
}
}
&lt;/script>