js 右下角动态提示消息框

js：
var sheyMsg=function(box,options) {
this.box=this.g(box);
this.setOptions(options);
this.init();
}
sheyMsg.prototype={
ae:function(e,call) {
if(window.addEventListener)window.addEventListener(e,call,false);
else window.attachEvent("on"+e,call);
},
g:function(id) {return typeof(id)=="string"?document.getElementById(id):id; },
isFixed:!window.ActiveXObject || (navigator.userAgent.indexOf("MSIE 6")==-1 && document.compatMode=="CSS1Compat"),
setOptions:function(options) {
this.options={//默认配置
showDelay:10,//显示延时
autoHide:30,//自动隐藏时间，设置为0时，不自动隐藏
onShow:function(){},//显示后调用
onHide:function(){}//隐藏后调用
};
for(var o in options) {
this.options[o]=options[o];
}
},
hide:function() {//隐藏
var _top=this.box.clientHeight;
var o=this;
if(/ing$/.test(o.status))return;
o.status="hiding";
clearTimeout(o.tt);
o.t=setInterval(function() {
if(o.isFixed)
o.box.style.bottom=(-o.box.clientHeight+(--_top))+'px';
else
o.box.style.top=o.de.scrollTop+o.de.clientHeight-5-(--_top) +"px";
if(_top==-5) {
clearInterval(o.t);
o.status="hide";
o.box.style.display="none";
o.options.onHide();
}
},5);
},
show:function() {//显示
var _top=0;
var o=this;
if(/ing$/.test(o.status))return;
o.status="showing";
clearTimeout(o.tt);
o.box.style.display="block";
o.t=setInterval(function() {
if(o.isFixed)
o.box.style.bottom=(-o.box.clientHeight+(++_top))+"px";
else
o.box.style.top=(o.de.scrollTop+o.de.clientHeight-5-(++_top)) +"px";
if(_top==o.box.clientHeight) {
clearInterval(o.t);
o.status="show";
o.options.onShow();
var h=o.options.autoHide-0;
if(h) o.tt=setTimeout(function() {o.hide();},h*1000);
}
},1);
},
fixIE6:function() {//IE6 滚动定位
this.box.style.left=this.de.scrollLeft+this.de.clientWidth-this.box.clientWidth-2+"px";
if(this.status=="show") {
this.box.style.top=this.de.scrollTop+this.de.clientHeight-this.box.clientHeight-5+"px";
} else if(this.status=="hide") {
this.box.style.top=this.de.scrollTop+this.de.clientHeight+5+"px";
}
},
init:function() {
with(this.box.style) {
display="block";//显示之后才能取出宽度和高度
if(this.isFixed) {
position="fixed";
right="2px";
bottom=(-this.box.clientHeight-5)+"px";
} else {
position="absolute";
}
}
this.status="hide";
var o=this;
if(!this.isFixed) {
o.de=document.compatMode=="CSS1Compat"?document.documentElement:document.body;
var timer;
this.ae("resize",function() { clearTimeout(timer);timer=setTimeout(function(){o.fixIE6.call(o)},30);});
this.ae("scroll",function() { clearTimeout(timer);timer=setTimeout(function(){o.fixIE6.call(o)},30);});
this.fixIE6();//加载时指定位置
}
o.box.style.display="none";
o.tt=setTimeout(function() {o.show();},o.options.showDelay*1000);
}
}
====================
css:
.msg { width:240px;display:none; }

.pink .top,.pink .top .title,.pink .top span,.pink .bottom,.pink .bottom a {background:transparent url(images/msg_bg_pink.gif) no-repeat 0px 0px;}
.pink .center {background:url(images/center_bg_pink.gif) repeat-y;}

.blue .top,.blue .top .title,.blue .top span,.blue .bottom,.blue .bottom a {background:transparent url(images/msg_bg_blue.gif) no-repeat 0px 0px;}
.blue .center {background:url(images/center_bg_blue.gif) repeat-y;}

.msg .top{width:240px;height:25px;position:relative;}
.msg .top .title {background-position:-195px -70px;padding-left:30px;line-height:22px;width:100px;height:25px;}
.msg .top span {background-position:0px -70px;width:36px; height:17px;position:absolute;top:1px;left:198px;cursor:pointer;}
.msg .top span:hover {background-position:-43px -71px;}

.msg .center { width:240px;height:115px;}
.msg .center h3{color:#0c4e7c;text-align:center;line-height:23px;font-size:13px;}
.msg .center p{color: #0c4e7c;margin:0px 10px;line-height:20px;}

.msg .bottom {height:29px;background-position:0px -32px;}
.msg .bottom a {background-position:-120px -75px;padding-left:20px;margin:7px 10px;float:right;width:30px;height:20px;}
==================================
demo:
<!--sheyMsg start-->
<div class="msg pink" id="msgbox">
<div class="top">
<div class="title">CSDN News</div>
<span title="close" id="msgclose"></span>
</div>
<div class="center">
<h3>仿腾讯右下角消息提示</h3>
<p>showDalay:设置页面加载后显示时间延迟;<br />autoHide:显示后自动隐藏的时间，默认30秒，设置为0表示不自动隐藏;</p>
</div>
<div class="bottom"><a target="_blank" href="http://blog.csdn.net/sohighthesky/archive/2009/11/10/4795886.aspx">查看</a>
</div>
</div>
<!--sheyMsg end-->

var msg=new sheyMsg("msgbox",{
showDelay:2,//
onHide:function(){
btn.value="Show";
},
onShow:function() {
btn.value="Hide";
}
});
msg.show();