function Dron_ScrollBox(uid)
{
this.scrollBox = document.getElementById(uid);
this.scrollBoxHeight = this.scrollBox.clientHeight;
this.scrollBoxInner = this.scrollBox.innerHTML;
this.scrollCol = this.scrolln = 0;
this.setScroll = function ()
{
this.scrollBox.scrollTop = this.scrollCol + this.scrolln;
if(this.scrolln==this.scrollBoxHeight)
return this.addScroll()
else
this.scrolln ++;
var o = this;
function m(){o.setScroll();}
setTimeout(m,30);
}
this.addScroll = function ()
{
this.scrollBox.innerHTML += "<br>" + this.scrollBoxInner;
this.scrollCol = this.scrollBox.scrollTop;
this.scrolln = 0;
var o = this;
function m(){o.setScroll();}
setTimeout(m,2000);
}
this.init = this.addScroll;
}
//类的调用方法，可多个，只要你内存允许
new Dron_ScrollBox("scrollBox").init();