JS实现滚动幻灯片

<div id="slideBox" class="slideBox">

<div class="hd">
<ul id="xuhao">

<li>1</li><li>2</li><li>3</li>

</ul>
</div>
<div class="bd">
<ul>
<li><a href="#" target="_blank"  id="slider_href"><img src="images/test1.jpg" id="slider_img">/></a></li>
</ul>
</div>

<!-- 下面是前/后按钮代码，如果不需要删除即可 -->

<a class="prev" href="javascript:void(0)"> << </a>
<a class="next" href="javascript:void(0)"> >> </a>
</div>

<script type="text/javascript">

var index=0;
var imageArray=["images/test1.jpg","images/test2.jpg","images/test3.jpg"];
var duration=3000;//间隔时间

function autoSlider(){
if(index<imageArray.length-1){
index++;
}else{
index=0;
}
$("#slider_img").attr("src",imageArray[index]);
$("#slider_href").attr("href",imageArray[index]);
$("#xuhao li").removeClass("active_bg");
$("#xuhao li").eq(index).addClass("active_bg");
}
setInterval(autoSlider,duration);
$(".next").click(function(){
index=index+1;
if(index>imageArray.length-1){
index=0;
}
$("#slider_img").attr("src",imageArray[index]);
$("#slider_href").attr("href",imageArray[index]);
$("#xuhao li").removeClass("active_bg");
$("#xuhao li").eq(index).addClass("active_bg");

});
$(".prev").click(function(){
index=index-1;
if(index<0){
index=imageArray.length-1;
}
$("#slider_img").attr("src",imageArray[index]);
$("#slider_href").attr("href",imageArray[index]);
$("#xuhao li").removeClass("active_bg");
$("#xuhao li").eq(index).addClass("active_bg");

});
</script>

<style type="text/css">

/* css 重置 */
*{margin:0; padding:0; list-style:none; }
body{ background:#fff; font:normal 12px/22px 宋体;  }
img{ border:0;  }
a{ text-decoration:none; color:#333;  }
/* 本例子css */

.slideBox{ width:100%; height:400px; overflow:hidden; position:relative; border:1px solid #ddd;  }
.slideBox .hd{ height:15px; overflow:hidden; position:absolute; right:5px; bottom:5px; z-index:1; }
.slideBox .hd ul{ overflow:hidden; zoom:1; float:left;  }
.slideBox .hd ul li{ float:left; margin-right:2px;  width:15px; height:15px; line-height:14px; text-align:center; background:#fff; cursor:pointer; }
.slideBox .hd ul li.on{ background:#f00; color:#fff; }
.slideBox .bd{ position:relative; height:100%; z-index:0;   }
.slideBox .bd li{ zoom:1; vertical-align:middle; }
.slideBox .bd img{ width:100%; height:400px; display:block;  }
.active_bg{color:red;font-weight:bold;}/* 当前显示bg的css *
/* 下面是前/后按钮代码，如果不需要删除即可 */

.slideBox .prev,
.slideBox .next{ position:absolute; left:3%; top:50%; margin-top:-25px; display:block; width:32px; height:40px; background:url(images/slider-arrow.png) -110px 5px no-repeat; filter:alpha(opacity=50);opacity:0.5;   }

.slideBox .next{ left:auto; right:3%; background-position:8px 5px; }

.slideBox .prev:hover,
.slideBox .next:hover{ filter:alpha(opacity=100);opacity:1;  }
.slideBox .prevStop{ display:none;  }
.slideBox .nextStop{ display:none;  }

</style>