2011811 右下角弹出渐隐的广告代码 可以关闭 可以缩小 还各种兼容（ff opera ie6、7、8都试过了）值得保留哎~~~

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　　　　　　　　　　　　最近在阿里西西 当到一个相当好的右下角弹出代码框  我找了好久了 这一个最符合我的心意了：

　　js  代码段：

 

　　

<script language="javascript">
var Message={
set: function() {//最小化与恢复状态切换
var set=this.minbtn.status == 1?[0,1,'block',this.char[0],'最小化']:[1,0,'none',this.char[1],'展开'];
this.minbtn.status=set[0];
this.win.style.borderBottomWidth=set[1];
this.content.style.display =set[2];
this.minbtn.innerHTML =set[3]
this.minbtn.title = set[4];
this.win.style.top = this.getY().top;
},
close: function() {//关闭
this.win.style.display = 'none';
window.onscroll = null;
},
setOpacity: function(x) {//设置透明度
var v = x >= 100 ? '': 'Alpha(opacity=' + x + ')';
this.win.style.visibility = x<=0?'hidden':'visible';//IE有绝对或相对定位内容不随父透明度变化的bug
this.win.style.filter = v;
this.win.style.opacity = x / 100;
},
show: function() {//渐显
clearInterval(this.timer2);
var me = this,fx = this.fx(0, 100, 0.1),t = 0;
this.timer2 = setInterval(function() {
t = fx();
me.setOpacity(t[0]);
if (t[1] == 0) {clearInterval(me.timer2) }
},10);
},
fx: function(a, b, c) {//缓冲计算
var cMath = Math[(a - b) > 0 ? "floor": "ceil"],c = c || 0.1;
return function() {return [a += cMath((b - a) * c), a - b]}
},
getY: function() {//计算移动坐标
var d = document,b = document.body, e = document.documentElement;
var s = Math.max(b.scrollTop, e.scrollTop);
var h = /BackCompat/i.test(document.compatMode)?b.clientHeight:e.clientHeight;
var h2 = this.win.offsetHeight;
return {foot: s + h + h2 + 2+'px',top: s + h - h2 - 2+'px'}
},
moveTo: function(y) {//移动动画
clearInterval(this.timer);
var me = this,a = parseInt(this.win.style.top)||0;
var fx = this.fx(a, parseInt(y));
var t = 0 ;
this.timer = setInterval(function() {
t = fx();
me.win.style.top = t[0]+'px';
if (t[1] == 0) {
clearInterval(me.timer);
me.bind();
}
},10);
},
bind:function (){//绑定窗口滚动条与大小变化事件
var me=this,st,rt;
window.onscroll = function() {
clearTimeout(st);
clearTimeout(me.timer2);
me.setOpacity(0);
st = setTimeout(function() {
me.win.style.top = me.getY().top;
me.show();
},600);
};
window.onresize = function (){
clearTimeout(rt);
rt = setTimeout(function() {me.win.style.top = me.getY().top},100);
}
},
init: function() {//创建HTML
function $(id) {return document.getElementById(id)};
this.win=$('msg_win');
var set={minbtn: 'msg_min',closebtn: 'msg_close',title: 'msg_title',content: 'msg_content'};
for (var Id in set) {this[Id] = $(set[Id])};
var me = this;
this.minbtn.onclick = function() {me.set();this.blur()};
this.closebtn.onclick = function() {me.close()};
this.char=navigator.userAgent.toLowerCase().indexOf('firefox')+1?['_','::','×']:['0','2','r'];//FF不支持webdings字体
this.minbtn.innerHTML=this.char[0];
this.closebtn.innerHTML=this.char[2];
setTimeout(function() {//初始化最先位置
me.win.style.display = 'block';
me.win.style.top = me.getY().foot;
me.moveTo(me.getY().top);
},0);
return this;
}
};
Message.init();

function hide(){
document.getElementById("msg_content").style.display = "none";
}（图片上的关闭功能）

</script>

具体怎么理解嘛~~~有待学习一段时间;不过最后我改过之后是在图片上用热点加出来的关闭功能~~原来的并不是这个样子 可以吧滤镜值删去 看看原版的~~

css： 

#msg_win{323px;position:absolute;right:0;font-size:12px;font-family:Arial;margin:0px;display:none;overflow:hidden;z-index:99;}
#msg_win .icos{position:absolute;top:2px;*top:0px;right:2px;z-index:9;}
.icos a{float:left;color:#833B02;margin:1px;text-align:center;font-weight:bold;14px;height:22px;line-height:22px;padding:1px;text-decoration:none;font-family:webdings;filter:Alpha(Opacity=0);opacity:0}
.icos a:hover{color:#fff;}
#msg_title{background:#FECD00;border-bottom:1px solid #A67901;border-top:1px solid #FFF;border-left:1px solid #FFF;color:#000;height:25px;line-height:25px;text-indent:5px;filter:Alpha(Opacity=0);opacity:0}
#msg_content{323px;height:210px;overflow:hidden;}

下面是html段：

<div id="msg_win" style="display:block;top:490px;visibility:visible;opacity:1;">
<div class="icos"><a id="msg_min" title="最小化" href="javascript:void 0">_</a><a id="msg_close" title="关闭" href="javascript:void 0">×</a></div>
<div id="msg_title">站长特效网右下角窗口</div>
<div id="msg_content"><img src="actxt.gif(上方的act.gif)" width="323" height="210" border="0" usemap="#Map" />
  <map name="Map" id="Map">
    <area shape="rect" coords="53,113,271,154" href="mailto:JKSBWB@163.COM;wanbu@dascom.net.cn" />
    <area shape="rect" coords="247,175,300,193" href="http://www.wanbu.com.cn/bencandy.php?fid=127&id=2237" target="_blank" />
    <area shape="rect" coords="295,10,312,25"  style="cursor:pointer;" onclick="hide()" />
  </map>
</div>
</div>