
<form  method="post" action="?action=weibo_add">
<textarea name="weibo" id="textarea"></textarea>
<input type="hidden" name="sid" value="<?php  echo $_GET['sid']?>">
<input type="hidden" name="userid" value="<?php  echo $id ?>">
<input type="submit"  value="提交"></td>
</tr>
</table>
</form>