创建一个带滚动条的div

<script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> </script>

<div id="chatlog" style="border:1px solid black; padding:5px;height:115px;overflow:auto;" ></div>
http://www.corange.cn/archives/2008/02/238.html