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='right:28px; top:155px; position:absolute;'><table width='20' border='0' cellpadding='0' cellspacing='0'><tr><td align='center'><a href='javascript:initialize()' onfocus='blur()'><img border='0' src='/images/zxkf/top.gif' alt='Back to Top' /></a></td></tr><tr><td align='center' height='5'><a href='javascript:window.scroll(0,1024)' onfocus='blur()'></a></td></tr><tr><td align='center'><a href='http://wpa.qq.com/msgrd?V=1&Uin=7950115&Site=Darki&Menu=yes' target='blank'><img src='/images/zxkf/oicq.gif' border='0' alt='学业水平、高考相关&#13&#10QQ群:84809654' /></a></td></tr><tr><td align='center' height='5'><a href='javascript:window.scroll(0,1024)' onfocus='blur()'></a></td></tr><tr><td align='center'><a href='http://wpa.qq.com/msgrd?V=1&Uin=147474705&Site=Darki&Menu=yes' target='blank'><img src='/images/zxkf/oicq.gif' border='0' alt='QQ交流' /></a></td></tr><tr><td align='center' height='5'><a href='javascript:window.scroll(0,1024)' onfocus='blur()'></a></td></tr><tr><td align='center'><a href='mailto:sxsmxzx@sina.com' target='blank'><img border='0' src='/images/zxkf/email.gif' alt='E-Mail' /></a></td></tr><tr><td align='center' height='5'><a href='javascript:window.scroll(0,1024)' onfocus='blur()'></a></td></tr><tr><td align='center'><img border='0' src='/images/zxkf/tel.gif' alt='' /></td></tr><tr><td align='center' height='5'><a href='javascript:window.scroll(0,1024)' onfocus='blur()'></a></td></tr><tr><td align='center'><a href='http://www.sxsmxzx.com/help.asp' target='blank'><img  border='0' src='/images/zxkf/help.gif' alt='在线帮助' / ></a></td></tr><tr><td align='center' height='5'><a href='javascript:window.scroll(0,1024)' onfocus='blur()'></a></td></tr><tr><td align='center'><a href='javascript:window.scroll(0,99999)' onfocus='blur()'><img border='0' src='/images/zxkf/bottom.gif' alt='Back to Bottom' /></a></td></tr></table></div>"

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