var p_table=document.getElementById("p-table");
var noticeHTML=p_table.innerHTML;
var timer=null;
function move(){
clear();
var val1=p_table.scrollTop;
p_table.scrollTop+=1;
var val2=p_table.scrollTop;
if(val1===val2){
p_table.innerHTML+=noticeHTML;
}
timer=window.setTimeout(move,100);
}
function clear(){
window.clearTimeout(timer);
timer=null;
}
move();
p_table.onmouseover=clear;
p_table.onmouseout=move;
<div class="p-table" id="p-table" style="height:568px;overflow:hidden">
<ul>
<li><span>123456</span><span>123456</span><span>123456</span><span>123456</span><span>123456</span><span>123456</span></li>
</ul>
</div>