文字無縫滾動代碼

<div id="scroll_begin">
<ul>
<li>換此處換此處換此處換此處換此處</li>
<li>換此處換此處換此處換此處換此處</li>
<li>換此處換此處換此處換此處換此處</li>
<li>換此處換此處換此處換此處換此處</li>
<li>換此處換此處換此處換此處換此處</li>
<li>換此處換此處換此處換此處換此處</li>
<li>換此處換此處換此處換此處換此處</li>
<li>換此處換此處換此處換此處換此處</li>
<li>換此處換此處換此處換此處換此處</li>
<li>換此處換此處換此處換此處換此處</li>
<li>換此處換此處換此處換此處換此處</li>
<li>換此處換此處換此處換此處換此處</li>
</ul>
</div>
<script language="JavaScript">

scroll_beginHeight=200;
stopscroll=false;

with(scroll_begin){
style.width=180;
style.height=200;
style.overflowX="visible";
style.overflowY="hidden";
noWrap=true;
onmouseover=new Function("stopscroll=true");
onmouseout=new Function("stopscroll=false");
}
document.write('<div id="templayer" style="position:absolute;z-index:1;visibility:hidden"></div>');

preTop=0; currentTop=0;

function init(){
templayer.innerHTML="";
while(templayer.offsetHeight<scroll_beginHeight){
templayer.innerHTML+=scroll_begin.innerHTML;
}
scroll_begin.innerHTML=templayer.innerHTML+templayer.innerHTML;
setInterval("scrollUp()",20);
}
document.body.onload=init;

function scrollUp(){
if(stopscroll==true) return;
preTop=scroll_begin.scrollTop;
scroll_begin.scrollTop+=1;
if(preTop==scroll_begin.scrollTop){
scroll_begin.scrollTop=templayer.offsetHeight-scroll_beginHeight;
scroll_begin.scrollTop+=1;
}
}
</script>