双击自动滚屏代码

< SCRIPT language = javascript >
var  currentpos,timer; 
function  initialize() 
... { 
timer=setInterval("scrollwindow()",10);
}  
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
</ SCRIPT >