//左側選單隨捲軸開始
self.onError=null;
currentX = currentY = 0; 
whichIt = null; 
lastScrollX = 0; lastScrollY = 0;
NS = (document.layers) ? 1 : 0;
IE = (document.all) ? 1: 0;
<!-- STALKER CODE -->
function heartBeat() {
if(IE) { 
diffY = document.body.scrollTop; 
diffX = 0; 
}
if(NS) { diffY = self.pageYOffset; diffX = self.pageXOffset; }
if(diffY != lastScrollY) {
percent = .1 * (diffY - lastScrollY);
if(percent > 0) percent = Math.ceil(percent);
else percent = Math.floor(percent);
if(IE) document.all.floater.style.pixelTop += percent;
if(NS) document.floater.top += percent; 
lastScrollY = lastScrollY + percent;
}
if(diffX != lastScrollX) {
percent = .1 * (diffX - lastScrollX);
if(percent > 0) percent = Math.ceil(percent);
else percent = Math.floor(percent);
if(IE) document.all.floater.style.pixelLeft += percent;
if(NS) document.floater.top += percent;
lastScrollY = lastScrollY + percent;
} 
} 
if(NS || IE) action = window.setInterval("heartBeat()",1);
//左側選單隨捲軸結束


//雙按左鍵捲軸捲動開始
var currentpos,timer;
function initialize(){timer=setInterval("scrollwindow()",1);}
function sc(){clearInterval(timer);}function scrollwindow(){
currentpos=document.body.scrollTop;window.scroll(0,++currentpos);
if (currentpos != document.body.scrollTop)sc();} document.onmousedown=sc
document.ondblclick=initialize
//雙按左鍵捲軸捲動結束