div+无限循环问题（感觉挺难的，希望大家帮帮忙）

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<style>
div{border:solid 1px red;margin:3px;font-size:12px;}
</style>
<script>
var add_link = function(){
par.innerHTML += "<div>我们是撒手的阿斯顿哈市的  <input type='button' value='删除' onclick='sub_link(this.parentNode)'></div>";
};
var sub_link = function(obj){
obj.removeNode(obj);
}
</script>
</HEAD><BODY>
<div id="par">
<input type="button" value="增加" onclick="add_link()">
<div>我们是撒手的阿斯顿哈市的  <input type='button' value='删除' onclick="sub_link(this.parentNode)"></div>
</div>
</BODY>
</HTML>

解决方案 »

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大div1里有一个小div2,当div2的高度>div1的高度，div2就在div1中自下向上无限循环，不留空白，
<marquee id="mq" width="100%" height="190px" direction="up" onmouseover="iScrollAmount=0" onmouseout="iScrollAmount=1">
<div id="dybody_middleLNR">
<ul>
<li><nobr><a href="/xwdt/ShowArticle.asp?id=8" target="_blank"><img src="/skin/point.gif" border="0" align="absmiddle">网站已经加上“视频介绍”栏目</a></nobr></li><li><nobr><a href="/xwdt/ShowArticle.asp?id=7" target="_blank"><img src="/skin/point.gif" border="0" align="absmiddle">城市绿化宜以乡土树种为主</a></nobr></li><li><nobr><a href="/xwdt/ShowArticle.asp?id=6" target="_blank"><img src="/skin/point.gif" border="0" align="absmiddle">庭院树木的修剪方法</a></nobr></li><li><nobr><a href="/xwdt/ShowArticle.asp?id=5" target="_blank"><img src="/skin/point.gif" border="0" align="absmiddle">怎样使盆栽栀子叶茂花繁</a></nobr></li><li><nobr><a href="/xwdt/ShowArticle.asp?id=4" target="_blank"><img src="/skin/point.gif" border="0" align="absmiddle">白兰花——天然的居室芳香剂</a></nobr></li><li><nobr><a href="/xwdt/ShowArticle.asp?id=3" target="_blank"><img src="/skin/point.gif" border="0" align="absmiddle">庭园中如何应用一年生花卉</a></nobr></li>
</ul>
</div>
</marquee>
<script language="javascript">
var speed = 90;
var oMarquee = document.getElementById("mq"); //滚动对象
var omqdemo = document.getElementById("dybody_middleLNR"); //内容对象
var h = oMarquee.offsetHeight;
var odh = omqdemo.offsetHeight;
var o = omqdemo.outerHTML;
var x = parseInt(h/odh)+1;
for(var i=0;i<x;i++){
oMarquee.innerHTML += o
}
oMarquee.scrollTop = h;
var iScrollAmount = 1
function scroll(){
oMarquee.scrollTop += iScrollAmount;
var oh = oMarquee.scrollTop;
if(odh-oh<=-h){
oMarquee.scrollTop = h;
}
}
oMarquee.stop();
var MyMar = setInterval(scroll,speed);
</script>
</div>
</div>
是不是图片上下循环： <body>
<div id=demo style="overflow:hidden; width:150px; height:20px;">
<div id=demo1> <a>1111</a><br>
<a>1111</a><br></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)} function show(e){
e.width="146";
e.height="60";
e.border="2";
e.style.borderColor="#993300";
}
function mclose(e){
e.width="140";
e.height="45";
e.border="0";

}
</script>
</body>
楼主要的是不是这样的?<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>测试</title>
</head>
<body>
<div id="demo" style="overflow:hidden;width:150px;height:200px;">
<div id="demo1" style="width:150px;">
<a>11111111111111111111111</a><br>
<a>11111111111111111111111</a><br>
<a>11111111111111111111111</a><br>
<a>11111111111111111111111</a><br>
<a>11111111111111111111111</a><br>
<a>11111111111111111111111</a><br>
<a>11111111111111111111111</a><br>
<a>11111111111111111111111</a><br>
<a>11111111111111111111111</a><br>
<a>11111111111111111111111</a><br>
<a>11111111111111111111111</a><br>
<a>11111111111111111111111</a><br>
</div>
<div id="demo2"></div>
</div>
<input type="button" value="add" onclick="add_link()"/>
<script language="JavaScript" type="text/javascript">
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)}
var add_link = function(){
document.getElementById("demo1").innerHTML += "<div>11111111111111111111111 add<input type='button' value='删除' onclick='sub_link(this)'></div>";
};
var sub_link = function(obj){
obj.parentNode.removeNode(obj);
}
</script>
</body>
</html>
ls 如果<a>11111111111111111111111</a><br>就一条不是很好用
作　　者：  mdh_zl (乞丐)
等　　级：
信誉值：  94  O.o
<input type="button" value="添加链接" onclick="addLink()" />
<div id="link" style="OVERFLOW: hidden; HEIGHT: 50">
<div id="link1" style="HEIGHT:100">
<a href="http://www.163.com" target="_blank">a</a><br>
<a href="http://www.163.com" target="_blank">b</a><br>
<a href="http://www.163.com" target="_blank">c</a><br>
<a href="http://www.163.com" target="_blank">d</a><br>
<a href="http://www.163.com" target="_blank">e</a><br>
<a href="http://www.163.com" target="_blank">f</a><br>
<a href="http://www.163.com" target="_blank">g</a><br>
<a href="http://www.163.com" target="_blank">h</a><br>
<a href="http://www.163.com" target="_blank">i</a><br>
<a href="http://www.163.com" target="_blank">j</a><br>
</div><div id="link2"></div></div><script>
var speed=60;
link2.innerHTML=link1.innerHTML;
function Marquee(){
if(link2.offsetTop-link.scrollTop<=0)
link.scrollTop-=link1.offsetHeight;
else{
link.scrollTop++;
}
}
var MyMar=setInterval(Marquee,speed);
link.onmouseover=function() {clearInterval(MyMar)}
link.onmouseout=function() {MyMar=setInterval(Marquee,speed)}
</script>
<script>
document.onclick=delLink;
function addLink()
{
var str='<a href="http://www.sina.com" target="_blank">新浪</a><br>';
document.getElementById('link1').innerHTML+=str;
}
function delLink()
{
alert('aaa');
var obj=event.srcElement;
var par=obj.parentNode;
if(obj.tagName=="A")
{
alert(obj.tagName);
par.removeChild(obj);
}
}
</script>
你要的效果