js实现图片轮播

<head>
<title>pic player</title>
<script type="text/javascript" src=" http://img.jb51.net/jslib/jquery/jquery-1.2.6.js"></script >
<script type="text/javascript" src=" http://img.jb51.net/jslib/jquery/tween.js"></script >
</head>
<body>
<div id="picplayer" style="position:relative;overflow:hidden;300px;height:300px;clear:none;border:solid 1px #ccc;">
there is a pic-player
</div>
<script>
    var p = $('#picplayer');
   var pics1 = [
                     {url:'http://img.jb51.net/online/picPlayer/1.jpg',link:'http://www.jb51.net/#',time:5000},
                     {url:'http://img.jb51.net/online/picPlayer/2.jpg',link:'http://www.jb51.net/#',time:4000},
                     {url:'http://img.jb51.net/online/picPlayer/3.jpg',link:'http://www.jb51.net',time:6000},
                     {url:'http://img.jb51.net/online/picPlayer/2.jpg',link:'http://www.jb51.net',time:6000},
                     {url:'http://img.jb51.net/online/picPlayer/1.jpg',link:'http://www.jb51.net',time:6000}
                    ];
      initPicPlayer(pics1,p.css('width').split('px')[0],p.css('height').split('px')[0]);

     function initPicPlayer(pics,w,h)
    {
      //选中的图片
      var selectedItem;
     //选中的按钮
     var selectedBtn;
    //自动播放的id
     var playID;
   //选中图片的索引
    var selectedIndex;
   //容器
   var p = $('#picplayer');
   p.text('');
   p.append('<div id="piccontent"></div>');
   var c = $('#piccontent');
  for(var i=0;i<pics.length;i++)
  {
  //添加图片到容器中
   c.append('<a href="'+pics .link+'" target="_blank"><img id="picitem'+i+'" style="display: none;z-index:'+i+'" src="'+pics.url+'" /></a>');
}
//按钮容器，绝对定位在右下角
p.append('<div id="picbtnHolder" style="position:absolute;top:'+(h-25)+'px;'+w+'px;height:20px;z-index:10000;"></div>');
//
var btnHolder = $('#picbtnHolder');
btnHolder.append('<div id="picbtns" style="float:right; padding-right:1px;"></div>');
var btns = $('#picbtns');
//
for(var i=0;i<pics.length;i++)
{
//增加图片对应的按钮
btns.append('<span id="picbtn'+i+'" style="cursor:pointer; border:solid 1px #ccc;background-color:#eee; display:inline-block;"> '+(i+1)+' </span> ');
$('#picbtn'+i).data('index',i);
$('#picbtn'+i).click(
function(event)
{
if(selectedItem.attr('src') == $('#picitem'+$(this).data('index')).attr('src'))
{
return;
}
setSelectedItem($(this).data('index'));
}
);
}
btns.append(' ');
///
setSelectedItem(0);
//显示指定的图片index
function setSelectedItem(index)
{
selectedIndex = index;
clearInterval(playID);
//alert(index);
if(selectedItem)selectedItem.fadeOut('fast');
selectedItem = $('#picitem'+index);
selectedItem.fadeIn('slow');
//
if(selectedBtn)
{
selectedBtn.css('backgroundColor','#eee');
selectedBtn.css('color','#000');
}
selectedBtn = $('#picbtn'+index);
selectedBtn.css('backgroundColor','#000');
selectedBtn.css('color','#fff');
//自动播放
playID = setInterval(function()
{
var index = selectedIndex+1;
if(index > pics.length-1)index=0;
setSelectedItem(index);
},pics[index].time);
}
}

</script>

</body>
</html>