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带原点的图片轮播
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>jquery全屏banner自动轮播切换</title>
<script type="text/javascript" src="http://www.mamicode.com/ajaxjs/jquery-1.6.2.min.js"/></script>
<script type="text/javascript">
function banner(){
var bn_id = 0;
var bn_id2= 1;
var speed33=5000;
var qhjg = 1; //可以不需要
var MyMar33;
$("#banner .d1").hide();
$("#banner .d1").eq(0).fadeIn("slow");
if($("#banner .d1").length>1)
{
$("#banner_id li").eq(0).addClass("nuw");
function Marquee33(){
bn_id2 = bn_id+1;
if(bn_id2>$("#banner .d1").length-1)
{
bn_id2 = 0;
}
$("#banner .d1").eq(bn_id).css("z-index","2");
$("#banner .d1").eq(bn_id2).css("z-index","1");
$("#banner .d1").eq(bn_id2).show();
$("#banner .d1").eq(bn_id).fadeOut("slow");
$("#banner_id li").removeClass("nuw");
$("#banner_id li").eq(bn_id2).addClass("nuw");
bn_id=bn_id2;
};
MyMar33=setInterval(Marquee33,speed33);
$("#banner_id li").click(function(){
var bn_id3 = $("#banner_id li").index(this);
if(bn_id3!=bn_id&&qhjg==1)
{
qhjg = 0;
$("#banner .d1").eq(bn_id).css("z-index","2"); //用于显示时是淡入淡出的
$("#banner .d1").eq(bn_id3).css("z-index","1"); // 可删除
$("#banner .d1").eq(bn_id3).show(); //show()可以加"slow"效果，也可以换成其他动画效果，如slideDown
$("#banner .d1").eq(bn_id).fadeOut("slow",function(){qhjg = 1;});
$("#banner_id li").removeClass("nuw");
$("#banner_id li").eq(bn_id3).addClass("nuw");
bn_id=bn_id3;
}
})
$("#banner_id").hover(
function(){
clearInterval(MyMar33);
}
,
function(){
MyMar33=setInterval(Marquee33,speed33);
}
)
}
else
{
$("#banner_id").hide();
}
}
</script>
</head>
<body>
<style type="text/css">
*{margin:0;padding:0;list-style-type:none;}
a,img{border:0;}
body{font:12px/180% Arial, Helvetica, sans-serif, "新宋体";}
.banner{height:400px;overflow:hidden;}
.banner .d1{width:100%;height:392px;display:block;position:absolute;left:0px;top:0px;}
.banner .d2{width:100%;height:30px;clear:both;position:absolute;z-index:100;left:0px;top:360px;}
.banner .d2 ul{float:left;position:absolute;left:50%;top:0;margin:0 0 0 -96px;display:inline;}
.banner .d2 li{width:17px;height:15px;overflow:hidden;cursor:pointer;background:url(/jscss/demoimg/201405/img1.png) no-repeat center;float:left;margin:0 3px;display:inline;}
.banner .d2 li.nuw{background:url(/jscss/demoimg/201405/img1_1.png) no-repeat center;}
</style>
<div class="banner" id="banner" >
<a href="http://www.mamicode.com/" class="d1" style="background:url(/jscss/demoimg/201405/banner1.jpg) center no-repeat;"></a>
<a href="http://www.mamicode.com/" class="d1" style="background:url(/jscss/demoimg/201405/banner2.jpg) center no-repeat;"></a>
<a href="http://www.mamicode.com/" class="d1" style="background:url(/jscss/demoimg/201405/banner3.jpg) center no-repeat;"></a>
<a href="http://www.mamicode.com/" class="d1" style="background:url(/jscss/demoimg/201405/banner4.jpg) center no-repeat;"></a>
<a href="http://www.mamicode.com/" class="d1" style="background:url(/jscss/demoimg/201405/banner5.jpg) center no-repeat;"></a>
<div class="d2" id="banner_id">
<ul>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
</ul>
</div>
</div>
<script type="text/javascript">banner()</script>
<div style="text-align:center;clear:both">
</div>
</body>
</html>