<html>
<head>
<title></title>
<style type="text/css">
#test{
width:300px;
height:55px;
overflow:hidden;
position:relative;
border:1px solid red;
}
ul{
margin:0;
padding:0;
list-style:none;
left:0;
position:absolute;
}
li{
float:left;
display:block;
width:50px;
height:50px;
border:1px solid black;
}
</style>
<script type="text/javascript">
window.onload=function(){
var oDiv=document.getElementById("test");
var oUl=document.getElementsByTagName("ul")[0];
var oLi=document.getElementsByTagName("li");
var oA=document.getElementsByTagName("a");
var timer=null;
var iSpeed=3;
oUl.innerHTML+=oUl.innerHTML;
oUl.style.width=oLi.length*oLi[0].offsetWidth+'px';
function fnMove(){
if(oUl.offsetLeft<-oUl.offsetWidth/2){
oUl.style.left=0;
}
else if(oUl.offsetLeft>0){
oUl.style.left=-oUl.offsetWidth/2+'px';
}
oUl.style.left=oUl.offsetLeft+iSpeed+'px';
};
timer=setInterval(fnMove,30);
oDiv.onmouseover=function(){
clearInterval(timer);
};
oDiv.onmouseout=function(){
timer=setInterval(fnMove,30);
};
oA[0].onclick=function(){
iSpeed=-3;
};
oA[1].onclick=function(){
iSpeed=3;
};
};
</script>
</head>
<body>
<a href="####">向左</a>
<a href="####">向右</a>
<div id="test">
<ul>
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
<li>6</li>
<li>7</li>
</ul>
</div>
</body>
</html>
