使用JQuery实现图片轮播效果的实例(推荐)(2)

<style type="text/css">
 #banner {position:relative; width:280px; height:160px; border:1px solid #666; overflow:hidden;}
 #banner ul { width:138px; height:18px;position:absolute;list-style-type:none;filter: Alpha(Opacity=80);opacity:0.8;z-index:1002;
    margin:0; padding:0; bottom:3px; right:5px; line-height: 18px; text-align: center;}
 #banner ul li { width: 18px; height: 18px; margin:0px 2px;float:left;display:block;color:#FFF;
　　　　　　　　　　 border:#e5eaff 1px solid;background:#6C6D6E;cursor:pointer} 
 #banner ul li.on { background:#900}
 #banner ul li a { color: white;}
 #banner ul li a:hover{text-decoration: none;}
 #banner_list a{position:absolute;} <!-- 让六张图片都可以重叠在一起-->
 #banner_list{position:absolute; right: 5px; bottom: 5px;}
 </style>

<script type="text/javascript">
 var t = n =0, count;
 $(document).ready(function(){ 
  count=$("#banner_list a").length;
  $("#banner_list a:not(:first-child)").hide();
  $("#banner_info").html($("#banner_list a:first-child").find("img").attr('alt'));
  $("#banner_info").click(function(){window.open($("#banner_list a:first-child").attr('href'), "_blank")});
  $("#banner li").click(function() {
   var i = $(this).text() -1;//获取Li元素内的值，即1，2，3，4
   n = i;
   if (i >= count) return;
   $("#banner_info").html($("#banner_list a").eq(i).find("img").attr('alt'));
   $("#banner_info").unbind().click(function(){window.open($("#banner_list a").eq(i).attr('href'), "_blank")})
   $("#banner_list a").filter(":visible").fadeOut(500).parent().children().eq(i).fadeIn(1000);
   document.getElementById("banner").style.background="";
   $(this).toggleClass("on");
   $(this).siblings().removeAttr("class");
  });
  t = setInterval("showAuto()", 4000);
  $("#banner").hover(function(){clearInterval(t)}, function(){t = setInterval("showAuto()", 4000);});
 })
 
 function showAuto()
 {
  n = n >=(count -1) ?0 : ++n;
  $("#banner li").eq(n).trigger('click');
 }
 </script>