模态对话框中的表格内容太长，就会出现水平滚动条，怎么办？


index.html 页面
[code=HTM]<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script src="jquery.js" type="text/javascript"></script>
<script>function openDialog()
{
window.showModalDialog('my.html', window, "dialogWidth:500px; dialogHeight:300px;");
}</script>
</head>
<body>
<input type="button" value="打开模态话框" onclick="openDialog()"/>
</body>
</html>
[/code]
my.html[code=HTM]
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
<title>无标题文档</title> 
</head> 
<body> 
<table width="96%" border="0" align="center" cellspacing="1"> 
<tr> <td align="center"> 于娜 </td> <td align="center"> 1980 </td> </tr>
<tr> <td align="center"> 于娜 </td> <td align="center"> 1980 </td> </tr> 
<tr> <td align="center"> 于娜 </td> <td align="center"> 1980 </td> </tr> 
<tr> <td align="center"> 于娜 </td> <td align="center"> 1980 </td> </tr>
<tr> <td align="center"> 于娜 </td> <td align="center"> 1980 </td> </tr> 
<tr> <td align="center"> 于娜 </td> <td align="center"> 1980 </td> </tr> 
<tr> <td align="center"> 于娜 </td> <td align="center"> 1980 </td> </tr> 
<tr> <td align="center"> 于娜 </td> <td align="center"> 1980 </td> </tr> 
<tr> <td align="center"> 于娜 </td> <td align="center"> 1980 </td> </tr> 
<tr> <td align="center"> 于娜 </td> <td align="center"> 1980 </td> </tr> 
<tr> <td align="center"> 于娜 </td> <td align="center"> 1980 </td> </tr> 
<tr> <td align="center"> 于娜 </td> <td align="center"> 1980 </td> </tr>
<tr> <td align="center"> 于娜 </td> <td align="center"> 1980 </td> </tr> 
<tr> <td align="center"> 于娜 </td> <td align="center"> 1980 </td> </tr> 
<tr> <td align="center"> 于娜 </td> <td align="center"> 1980 </td> </tr> 
<tr> <td align="center"> 于娜 </td> <td align="center"> 1980 </td> </tr> 
<tr> <td align="center"> 于娜 </td> <td align="center"> 1980 </td> </tr> 
<tr> <td align="center"> 于娜 </td> <td align="center"> 1980 </td> </tr> 
<tr> <td align="center"> 于娜 </td> <td align="center"> 1980 </td> </tr> 
</table> 
</body> 
</html>[/code]