var speed=10
var currentpos=0,alt=1,curpos1=0,curpos2=-1
function initialize(){
startit()
}
function scrollwindow(){

if (document.all)
temp=document.documentElement.scrollTop
else
temp=window.pageYOffset
if (alt==0)
alt=1
else
alt=0
if (alt==0)
curpos1=temp
else
curpos2=temp
if (curpos1!=curpos2){
if (document.all)
currentpos=document.documentElement.scrollTop-speed
else
currentpos=window.pageYOffset-speed
window.scroll(0,currentpos)
}
else{
currentpos=0
window.scroll(0,currentpos)
}
if(document.documentElement.scrollTop<5)
{  
window.clearInterval(intervalID); 
}
}
function startit(){

intervalID=setInterval("scrollwindow()",5)
}
lastScrollY=0;
function heartBeat(){ 
var diffY;
if (document.documentElement && document.documentElement.scrollTop)
    diffY = document.documentElement.scrollTop;
else if (document.body)
    diffY = document.body.scrollTop
else
    {/*Netscape stuff*/}

percent=.1*(diffY-lastScrollY); 
if(percent>0)percent=Math.ceil(percent); 
else percent=Math.floor(percent); 
document.getElementById("full").style.top=parseInt(document.getElementById("full").style.top)+percent+"px";

lastScrollY=lastScrollY+percent; 
}
suspendcode='<div id="full" style="top:370px;left:100%; position:absolute;margin-left:-41px;*margin-left:-41px; background: url(../images/msn.jpg) no-repeat; display:block; width:41px; height:38px;"><a target="_blank" href="http://settings.messenger.live.com/Conversation/IMMe.aspx?invitee=e2ad290ebb737e49@apps.messenger.live.com&mkt=zh-cn"><img style="border-style: none;margin:5px 0 0 13px;" src="http://messenger.services.live.com/users/e2ad290ebb737e49@apps.messenger.live.com/presenceimage?mkt=zh-cn" width="16" height="16" /></a></div>'

document.write(suspendcode);
window.setInterval("heartBeat()",1);