<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>轮播图</title>
<style type="text/css">
*{margin:0;padding: 0;}
#wrap{
500px;
height: 360px;
margin: 100px auto;
position: relative;
}
#pic {
500px;
height: 360px;
position: relative;
}
#pic img{
display: block;
position: absolute;
top: 0;
left: 0;
}
#btn div{
30px;
height: 50px;
background: #999;
cursor: pointer;
font-size: 18px;
color: #FFF;
font-weight: bold;
font-family: "微软雅黑";
text-align: center;
line-height: 50px;
position: absolute;
top: 50%;
margin-top: -25px;
}
#left {
left: 0;
}
#right {
right: 0;
}
</style>
</head>
<body>
<div id="wrap">
<div id="pic">
<img src="img/1.jpg" style="display: none;"/>
<img src="img/2.jpg" style="display: none;"/>
<img src="img/3.jpg" style="display: none;"/>
<img src="img/4.jpg" style="display: none;"/>
<img src="img/5.jpg" style="display: none;"/>
</div>
<div id="btn">
<div id="left"><</div>
<div id="right">></div>
</div>
</div>
<script type="application/javascript">
var oImg = document.getElementById('pic').getElementsByTagName('img');
var oLeft = document.getElementById('left');
var oRight = document.getElementById('right');
oImg[0].style.display = 'block';
var a=0 ;
oRight.onclick = function(){
oImg[a].style.display = 'none';
a++;
if(a>=oImg.length)
a=0;
oImg[a].style.display = 'block';
}
oLeft.onclick = function(){
oImg[a].style.display = 'none';
a--;
if(a<0){
a = oImg.length-1;
}
oImg[a].style.display = 'block';
}
</script>
</body>
</html>