jquery幻灯片效果
<style type="text/css">
#play{width:511px;height:346px; border:#ccc 0px solid;}
#playNum{margin:320px 5px 0 320px;z-index:10;width:145px; text-align:center;position:absolute;height:25px;}
#playNum span{float:right;margin:0 2px;width:18px;height:20px;cursor:pointer;color:#000;background-image:url(images/circle1.png);background-repeat:no-repeat;text-align:center}
#playNum span a{display:none;}
#playShow img{width:473px;height:346px;}
</style>
<script language="JavaScript" type="text/javascript">
var t=n=0,count=$("#playShow img").size();
$(function(){
$("#playShow img:not(:first-child)").hide();
$("#playNum span:first").css({"background":"url(images/circle1.png)"});
$("#playNum span").click(function(){
var i=$(this).text()-1;
if(i>=count)return ;
$("#playShow img").filter(":visible").hide().parent().children().eq(i).fadeIn(3000);
$(this).css({"background":"url(images/circle1.png)"}).siblings().css({"background":"url(images/circle2.png)"});
});
t=setInterval("autoShow()",4000);
$("#play").hover(function(){clearInterval(t)},function(){t=setInterval("autoShow()",4000);});
});
function autoShow(){
n=n>=(count-1) ? 0:++n;
if(n==0)
$("#playNum span").eq(2).trigger('click');
else if(n==1)
$("#playNum span").eq(1).trigger('click');
else
$("#playNum span").eq(0).trigger('click');
}
</script>
