<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>焦点图</title>
<style type="text/css">
#focus_box{ width:530px; height:180px; position:relative; margin:0 auto; overflow:hidden; zoom:1;}
#focus_box ul{ list-style:none; padding:0; margin:0;}
#focus_btn{ position:absolute; right:5px; bottom:5px; z-index:2;}
#focus_pic{ position:absolute;}
#focus_pic li{ height:180px; width:530px; margin:0; padding:0;}
#focus_btn li{ float:left; font-size:12px; width:25px; height:25px; line-height:25px; font-weight:bold; text-align:center; background:#fff; color:#000; margin-right:2px; cursor:pointer;}
#focus_btn li.on{ background:#f60; color:#fff;}
img{border:none; margin:0;padding:0; disaplay:block;}
</style>
</head>
<body>
<div id="focus_box" >
<ul id="focus_pic" style="left:0;top:0;">
<li><a target="_blank" href="#"><img src="http://img.fqmall.cn/WebResources/boc/Xdv/shopping/images/20111201/530_180.jpg" width="530" height="180"></a></li>
<li><a target="_blank" href="#"><img src="http://img.fqmall.cn/WebResources/boc/Xdv/shopping/images/20111202/530_180.jpg" width="530" height="180"></a></li>
<li><a target="_blank" href="#"><img src="http://img.fqmall.cn/WebResources/boc/Xdv/shopping/images/20111205/530_180.jpg" width="530" height="180"></a></li>
<li><a target="_blank" href="#"><img src="http://img.fqmall.cn/WebResources/boc/Xdv/shopping/images/20111201/530_180.jpg" width="530" height="180"></a></li>
<li><a target="_blank" href="#"><img src="http://img.fqmall.cn/WebResources/boc/Xdv/shopping/images/20111202/530_180.jpg" width="530" height="180"></a></li>
<li><a target="_blank" href="#"><img src="http://img.fqmall.cn/WebResources/boc/Xdv/shopping/images/20111205/530_180.jpg" width="530" height="180"></a></li> </ul>
<ul id="focus_btn">
<li class="">1</li>
<li class="">2</li>
<li class="">3</li>
<li class="">4</li>
<li class="">5</li>
<li class="">6</li>
</ul>
</div>
<script type="text/javascript">
(function(){
var picHeight = 180;//幻灯片的高度
var picWidth = 530;//幻灯片的宽度
var autoTime = 1000;//自动播放间隔时间
var index = 0; //从第几个开始轮播,0为第一个
var v = 1;//1为垂直播放，0为水平播放
var focusPics = document.getElementById("focus_pic");//获得幻灯片的框架ID
var focusLi = focusPics.getElementsByTagName("li");
var picNo = focusLi.length;//幻灯片的数量
var Timer,autoTimer;
var posX,posY;//移动的目标距离
var focus_btn = document.getElementById("focus_btn");
var btnLi = focus_btn.getElementsByTagName("li");
btnLi[0].className = "on";
if(v==0){//当方向为水平移动时候
focusPics.style.width = picNo*picWidth + "px"; //设置包裹UL的宽度为LI的数量乘以图片的宽度
for(var i=0;i<picNo;i++){//设置样式
focusLi[i].style.float = "left";
focusLi[i].style.height = picHeight + "px";
focusLi[i].style.widht = picWidth + "px";
}
}else if(v==1){ //垂直方向
for(var i=0;i<picNo;i++){
focusPics.style.width = picWidth + "px";
}
}
function autoPlay(){//自动播放函数
if(autoTimer){clearInterval(autoTimer)}; //清除播放避免重复播放
Timer = setInterval(function(){move(index)} //调用移动函数，传入index值
,autoTime);
}
function move(liIndex){ //移动
if(v == 1){//垂直移动时
posX = 0;
posY = -(liIndex*picHeight);//取得垂直移动的目标TOP值
}else{//水平移动时
posX = -(liIndex*picWidth);//取得水平移动的目标LEFT值
posY = 0;
}
for(var i=0;i<picNo;i++){
btnLi[i].className = "";//清除按钮的样式
}
btnLi[liIndex].className = "on";//设置按钮的样式
autoTimer = setInterval( function(){moveElement(posX,posY)},10); //调用缓冲移动到目标位置函数
}
function moveElement(posX,posY){ //posX posY 为移动到的目标坐标
if(Timer){clearInterval(Timer)}; //移动的时候清除自动播放
//if(autoTimer){clearInterval(autoTimer)};
var stepx,stepy;
if(!focusPics.style.left) focusPics.style.left = "0px"; //初始化
if(!focusPics.style.top) focusPics.style.top = "0px"; //初始化
var left = focusPics.style.left;
var top = focusPics.style.top;
left = parseInt(left,10);
top = parseInt(top,10);
if(left == posX && top==posY){//当到达目标位置时
if(autoTimer){clearInterval(autoTimer)}; //清除缓冲移动函数的间隙调用
Timer = setInterval( //自动播放下一个位置
function(){
move(index);
index++;//索引加一
if(index==picNo){//当索引值等于LI的数量时
index = 0; //返回到第一个
}
}
,autoTime);
return false;
};
if(left>posX){//判断移动的位置与现在的位置的大小
stepx = Math.ceil((left-posX)/10);
left = left - stepx;
}else if(left<posX){
stepx = Math.ceil((posX-left)/10);
left = left + stepx;
}
if(top>posY){
stepy = Math.ceil((top-posY)/10);
top = top - stepy;
}else if(top<posY){
stepy = Math.ceil((posY - top)/10);
top = top + stepy;
}
focusPics.style.left = left + "px";
focusPics.style.top = top + "px";
}
function btnHover(){//小按钮的鼠标效果
var l = btnLi.length;
for(var i=0; i<l;i++){
btnLi[i].onmouseover = function(t){
return function(){
if(autoTimer){clearInterval(autoTimer)};//清除播放后
index = t;
move(t);//移动到this.index
}
}(i)
}
}
autoPlay();
btnHover();
})()
</script>
</body>
</html>
代码如上，请指点
$(function(){
var timer,
index = 0,
liNum = $("#focus_pic li").length,//总数量
onceMove = 180,//一次移动数量
maxTop = (liNum-1)*onceMove,//TOP移动最大值
speed = 300,//移动速度
autoTime = 1000;//自动播放间隔
function move(){
var nowTop = Math.abs(parseInt($("#focus_pic").css("top")));
if(nowTop == maxTop){
$("#focus_pic").stop().animate({top:"0"},speed);
index = 0;
}else{
$("#focus_pic").stop().animate({top:"-="+onceMove+"px"},speed);
index ++;
};
$("#focus_btn li").eq(index).addClass("on").siblings().removeClass("on");
}
timer = setInterval(move,autoTime);
$("#focus_btn li").mouseover(function(){
if(timer){ clearInterval(timer);}
$(this).addClass("on").siblings().removeClass("on");
index = $("#focus_btn li").index(this);
$("#focus_pic").stop().animate({top:"-" + onceMove*index + "px"},speed);
}).mouseleave(function(){
timer = setInterval(move,autoTime);
})
$("#focus_pic li").mouseover(function(){
if(timer){ clearInterval(timer);}
}).mouseleave(function(){
timer = setInterval(move,autoTime);
})
})
JQEURY的在IE6下面也是这样。上次发贴没人解答
li,img{ float:left}