fieldset html用法

<fieldset>
<legend>Flight</legend>
<table cellpadding="3" cellspacing="1" class="tabg" border="0">
<tr class="tr1"><td>Carrier</td><td>Flight</td></tr>
<tr class="tr2" onMouseOver="fSetBg(this)" onMouseOut="fReBg(this)"><td><input type="text" name="carrier" value="CZ" /></td><td><input type="text" name="flight" /></tr>
</table>
</fieldset>