how to get the select dropdown value in text box

[rpv_sen]

Hi Friends

I am trying to get the value of select dropdown item in a text box, but i am unable to get it. I am using ajax for dropdowm method.

please any one can help

one.php

<?php
session_start();
include("config.php");
// Check, if username session is NOT set then this page will jump to login page
if (!isset($_SESSION['username'])) {
        header('Location: index.php');
}
include('func.php');
?>

<script language = javascript>

$(document).ready(function() {
	$('#wait_1').hide();
	$('#category_code').change(function(){
	  $('#wait_1').show();
	  $('#result_1').hide();
      $.get("func.php", {
		func: "category_code",
		drop_var: $('#category_code').val()
      }, function(response){
        $('#result_1').fadeOut();
        setTimeout("finishAjax('result_1', '"+escape(response)+"')", 400);
      });
    	return false;
	});
});

function finishAjax(id, response) {
  $('#wait_1').hide();
  $('#'+id).html(unescape(response));
  $('#'+id).fadeIn();
}

</script>

<select name="category_code" id="category_code">
<option value="" selected="selected" disabled="disabled">Select Category Title</option>
<?php getTierOne(); ?>
</select>


<span id="wait_1" style="display: none;">
<img alt="Please Wait" src="images/ajax-loader.gif"/></span>
<span id="result_1" style="display: none;"></span>

func.php

<?php
//**************************************
//     Page load dropdown results     //
//**************************************
include_once('config.php');
function getTierOne()
{
	$result = mysql_query("SELECT * FROM category_title") 
	or die(mysql_error());

	  while($tier = mysql_fetch_array( $result )) 
  
		{
		   echo '<option value="'.$tier['category_code'].'">'.$tier['category_title'].'</option>';
		}
			
}

//**************************************
//     First selection results     //
//**************************************
if($_GET['func'] == "category_code" && isset($_GET['func'])) { 
   category_code($_GET['drop_var']); 
}

function category_code($drop_var)
{  

	$result = mysql_query("SELECT * FROM category_item WHERE category_code='$drop_var'") or die(mysql_error());
	
	echo '<select name="item_name" id="item_name">';

		   while($drop_2 = mysql_fetch_array( $result )) 
			{
			  echo '<option value="'.$drop_2['item_code'].'">'.$drop_2['category_item'].'</option>';
			}
	
	echo '</select>'; 
	
	echo '<input type="text" name="item_name" value="'.$drop_2['category_item'].'" readonly="readonly">';
}
?>

[twiss]

With jQuery you can use something like this:

$('#category_code option:selected').text()