window.onload = function(){ 
new couplet("maple1",10,8); 
new couplet("maple2",10,-8); 
} 

function couplet(){ 
if(arguments.length>=1) this.objID = document.getElementById(arguments[0]); 
if(arguments.length>=2) this.divTop = arguments[1]; 
if(arguments.length>=3) this.divPlane = arguments[2]; 
if(arguments.length>=4) this.scrollDelay = arguments[4]; 
if(arguments.length>=5) this.waitTime = arguments[5]; 
if(!this.objID){ 
alert('对象名【'+ arguments[0] +'】无效，对联无法初始化，请检查对象名称是否正确！'); 
this.objID = null; return; 
}else{ 
this.objID.style.position='absolute'; 
this.objID.style.display='block'; 
this.objID.style.zIndex=9999; 
} 
if('' == this.objID.style.top){ 
if(isNaN(this.divTop)){ 
alert('对象垂直位置(top)参数必须为数字。'); return; 
}else{ 
this.objID.style.top = this.divTop+'px'; 
} 
} 
if('' == this.objID.style.left && '' == this.objID.style.right){ 
if(isNaN(this.divPlane)){ 
alert('对象水平位置(left||right)参数必须为数字。'); return; 
} 
if(this.divPlane>0) this.objID.style.left = this.divPlane+'px'; 
if(this.divPlane<0) this.objID.style.right = Math.abs(this.divPlane)+'px'; 
} 
if(this.scrollDelay<15 || isNaN(this.scrollDelay)) this.scrollDelay = 15; 
if(this.waitTime<500 || isNaN(this.waitTime)) this.waitTime = 500; 
if(arguments.length>=1) this.start(); 
} 
couplet.prototype.start = function(){ 
if(null == this.objID) return; 
var objCouplet = this; 
timer = this.scrollDelay; 
objCouplet.lastScrollY = 0; 
objCouplet.timerID = null; 
objCouplet.startID = function(){ 
if('block' == objCouplet.objID.style.display){ 
objCouplet.run(); 
}else{ 
clearInterval(objCouplet.timerID); 
} 
} 
objCouplet.Begin = function(){ 
objCouplet.timerID = setInterval(objCouplet.startID,timer); 
} 

setTimeout(objCouplet.Begin,this.waitTime); 
} 
couplet.prototype.run = function(){ 
if(document.documentElement && document.documentElement.scrollTop){ 
uu_scrY = parseFloat(document.documentElement.scrollTop); 
}else if(document.body){ 
uu_scrY = parseFloat(document.body.scrollTop); 
} 
uu_divX = parseFloat(this.objID.style.top.replace('px','')); 
uu_curTop = .1 * (uu_scrY - this.lastScrollY); 
uu_curTop = uu_curTop>0?Math.ceil(uu_curTop):Math.floor(uu_curTop); 
this.objID.style.top = parseFloat(uu_divX + uu_curTop) + 'px'; 
this.lastScrollY += uu_curTop; 
}

function closead() {
  maple1.style.display="none";
  maple2.style.display="none";
}

function WOpen(UrlStr){
 window.open(""+UrlStr+"")
}