<html>
<body>
<input type="text" name="T1" size="20"><input type="checkbox" name="C1" value="ON"><input type="radio" value="V1" checked name="R1"><input type="submit" value="提交" name="B1"><input type="reset" value="重置" name="B2"></p>
<table border="1" cellpadding="0" cellspacing="0" style="border-collapse: collapse; position: absolute; left: 0; top: 0" bordercolor="#111111" width="776" height="313">
<tr>
<td width="100%"> </td>
</tr>
</table>
</body>
</html>
比如某满足个条件,tr就灰掉,还可以在让它可用
写javascript改变...