源码如下:
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<style type= "text/css" >
*{margin:0;padding:0;}
body{height:2000px;}
.floatAd{width:124px;height:299px; text-align:center; position:fixed;margin-left:0;top:109px; _position:absolute; background:url( //img.jbzj.com/demoimg/2014/bg_slide2_120_270.png) no-repeat;}
.floatAd a{display:block;}
.floatAd img{border:none;}
.floatAd .closeAd{width:50px; height:20px; display:block; cursor:pointer;margin:9px 0 0 auto;}
.flAd{left:0;}
.frAd{right:0;}
</style>
<div class= "floatAd flAd" >
<a href= "#" target= "_blank" ><img src= "#" width= "120" height= "270" alt= "第1张图" ></a>
<span class= "closeAd" ></span>
</div>
<div class= "floatAd frAd" >
<a href= "#" target= "_blank" ><img src= "#" width= "120" height= "270" alt= "第2张图" ></a>
<span class= "closeAd" ></span>
</div>
<script type= "text/javascript" >
$( ".closeAd" ).click( function (){
$( this ).parent( ".floatAd" ).hide();
})
/*for ie6*/
function scrollAd(obj) {
var obj = "." + obj;
var adTop = $( ".floatAd" ).offset().top;
//alert(adTop);
$(window).scroll( function () {
$( ".floatAd" ).css({
top : $(window).scrollTop() + adTop
})
})
}
$( function () {
//针对ie6,模拟position:fixed效果
if ($.browser.msie && parseInt($.browser.version) == 6) {
scrollAd( "floatAd" );
}
})
</script>
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我们还可以改下代码,实现“单边展示飘浮广告,多个广告轮播展示”的效果,更改后的源代码:
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<style type= "text/css" >
*{margin:0;padding:0;}
body{height:2000px;}
.floatAd{width:124px;height:299px; text-align:center; position:fixed;margin-left:0;top:109px;right:0; _position:absolute; background:url( //img.jbzj.com/demoimg/2014/bg_slide2_120_270.png) no-repeat;}
.floatAd a{display:block;}
.floatAd img{border:none;}
.floatAd .closeAd{width:50px; height:20px; display:block; cursor:pointer;margin:9px 0 0 auto;}
</style>
<div class= "floatAd" >
<a href= "#" target= "_blank" ><img src= "#" width= "120" height= "270" alt= "第3张图" ></a>
<a href= "#" target= "_blank" style= "display:none;" ><img src= "#" width= "120" height= "270" alt= "第4张图" ></a>
<span class= "closeAd" ></span>
</div>
<script type= "text/javascript" >
$( ".closeAd" ).click( function (){
$( ".floatAd" ).hide();
})
/*隔时切换飘浮广告*/
function changePic(obj,times){
var num=0,
obj =$( "." + obj+ " >a" ),
times=times*1000,
len=obj.length;
//alert(len);
setInterval( function (){
num++;
num=num>len-1?0:num; //console.log(num);
$(obj).eq(num).show().siblings( "a" ).hide();
},times)
}
/*for ie6*/
function scrollAd(obj) {
var obj = "." + obj;
var adTop = $( ".floatAd" ).offset().top;
//alert(adTop);
$(window).scroll( function () {
$( ".floatAd" ).css({
top : $(window).scrollTop() + adTop
})
})
}
$( function () {
//针对ie6,模拟position:fixed效果
if ($.browser.msie && parseInt($.browser.version) == 6) {
scrollAd( "floatAd" );
}
//执行定时切换图片广告
changePic( "floatAd" ,2); //每隔2秒切换一次广告图片展示,间隔时间可控
})
</script>
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