在页面上，限制某区域尺寸，添加滚动条

使用<div></div>标签，配合css

aaaaa

bbbbb

ccccc

ddddd

直接写
<div style="windth:100%;height=60px;overflow-y:scroll;">
<table class="GridTable" valign="Top">
 <tr><td>aaaaa</td></tr>
 <tr><td>bbbbb</td></tr>
 <tr><td>ccccc</td></tr>
 <tr><td>ddddd</td></tr>
</table> 
</div>
或者做到css类中
=================================
<style type="text/css">
<!--
.GridTable
{
 windth:100%;
 height=60px;
 overflow-y:scroll;
}
.GridTable table{
 background-color:#FFFFFF;
 border-style:inset;
 white-space:nowrap;
 padding:0px;
 width:100%;
 height:100%;
}
-->
</style>
----------------------------
<div class="GridTable" valign="Top">
<table>
 <tr><td>aaaaa</td></tr>
 <tr><td>bbbbb</td></tr>
 <tr><td>ccccc</td></tr>
 <tr><td>ddddd</td></tr>
</table> 
</div>
============================
after all, woyingjie's answer is very one you need. :)
I just wanna try to give you some other way to do it. ^_^