JQuery实现图片轮播效果

#banner ul li.on { background:#900}
#banner_list a{position:absolute;}
</style>

javascript代码:

<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>

源码下载