jquery内容加载

i am doing load with setInterval jquery... i am loading from php page in html page #table content but in table content is text field i need write some text in field but page will reloaded in 2 sec... i need reload to and i need text field too... how i can load table content on every 2 sec but dont reload text field .... here is my Code PHP CODE

   echo "
<table id='tablet' border='1'> 
<tr> ";
do {
$userip = $showrequestarr['ip'];
$showresult = mysql_query("SELECT text FROM message WHERE userip = '$userip'");
$showarray = mysql_fetch_array ($showresult);
echo"
<td>
<div id='get'>
IP:".$userip."
<div id='main'>
<br>
<img id='logosup' src='logo.jpg'>
<br>
<img id='operatorimg' src='image.jpg'  width='270' height='150'/>
<br>
<!-- Start Of Input Field-->
<div id='menu'>

<br>
";
do {
printf("
<div id='user'>
<img src='upper.jpg' />
<table id='backg'>
<tr>
<td id='backg2' >

<span id='usertext'>%s </span>

</td>
</tr>
</table>
<img src='down.png' />
</div>
",$showarray['text']);
}
while ($showarray = mysql_fetch_array ($showresult));


echo "
<br>
<br>
</div>

<!--End Of chat field-->
<div id='textwrt'>

 <input id='textfiled' style='width:210px;' type='text' onkeyup='if (event.keyCode == 13) document.getElementById('buttone').click()' name='write'> 
<input type='submit' name='click' id='buttone' class='button'  style='visibility:hidden'>
</div>  

<!--End Of main Field-->

<a id='end' href='#'> End Chat And Take A Survay </a>

</div>
</div>
</td>";
}
while($showrequestarr = mysql_fetch_array ($showrequest));

echo "

</tr>
</table>

";

and here jquery Code

  $('#operator').load('operator.php #tablet', function(){    

var auto_refresh = setInterval(
function()
{
$('#operator').load('operator.php  #menu');
}, 3000);

 })