网页右下角弹出窗体实现代码

 
<!--开始--> 
<style type="text/css"> 
#msg_win{position:absolute;right:0px;display:none;overflow:hidden;z-index:99;border:1px solid #c00;background:#F9EFFC;width:210px;font-size:12px;margin:0px;} 
#msg_win .icos{position:absolute;top:2px;*top:0px;right:2px;z-index:9;} 
.icos a{float:left;color:#FFFFFF;margin:1px;text-align:center;font-weight:bold;width:14px;height:22px;line-height:22px;padding:1px;text-decoration:none;font-family:webdings;} 
.icos a:hover{color:#FFCC00;} 
#msg_title{background:#FA6705;border-bottom:1px solid #710B97;border-top:1px solid #FFF;border-left:1px solid #FFF;color:#FFFFFF;height:25px;line-height:25px;text-indent:5px;font-weight:bold;} 
#msg_content{margin:1px;margin-right:0;width:210px;height:160px;overflow:hidden; text-align:center} 
</style> 
<!--结束--> 

<div id="msg_win" style="display:block;top:503px;visibility:visible;opacity:1;"> 
<div><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">标题 
</div> 
<div id="msg_content"> 
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" 
codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="210" height="160"> 
<param name="movie" value="flvplayer.swf?vcastr_file=userlogin/video/qlg.flv&IsAutoPlay=1"/> 
<param name="quality" value="high"/> 
<param name="allowFullScreen" value="true" /> 
<embed src="flvplayer.swf?vcastr_file=userlogin/video/qlg.flv&IsAutoPlay=1" allowFullScreen="true" quality="high" 
pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="210" height="160"></embed> 
</object> 
</div> 
</div> 
<script type="text/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], '恢复']; 
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'; 
document.all.xhs1.stop(); 
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) } 
}, 6); //10 to 6 
}, 
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(); 
} 
}, 6); //10 to 6 
}, 
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(); 
}, 100); //600 mod 100 
}; 
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(); 
</script>