html代码大全 双击鼠标左键来滚动背景，单击停止

<SCRIPT language=javascript> 

var currentpos,timer; 

function initialize() 

{ 

timer=setInterval("scrollwindow()",16); 

} 

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>