Hil all ,i tried something like ,

When i select the drop down value , that value related content will display
into listbox,

But when i select another value , old one will not disabled , how to disable
the old one ,



<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";>
<html xmlns="http://www.w3.org/1999/xhtml";>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title> Test for UKATN</title>
<script src="jquery-1.2.6.min.js" type="text/javascript"></script>
<script type="text/javascript">
function show_place(str){
 $.ajax({
   type: "POST",
   url: "load_place_div.php",
   data: "place="+str,
  success: function(html){
      $("#results").append(html);
  }
 });

}
</script>
</head>
<body>
<?php
mysql_connect("localhost","root","admin");
mysql_select_db("test");
$load_location_query  = "SELECT * FROM going_from ";
$load_location_result = mysql_query($load_location_query);
?>
<form method="post">
<select id="cmb_location" name="cmb_location"
onchange="show_place(this.value)">
<option value="">Select</option>
<?php
while($row = mysql_fetch_object($load_location_result)){
$location_name = $row->location_name;
$location_id = $row->from_id;
?>
<option value="<?php echo $location_id;?>"><?php echo
$location_name;?></option>
<?php
}
?>
</select>
<div id="results"></div>
<input type="submit" name="btn" />
</form>
<?php
if(isset($_REQUEST['place_name']) && $_REQUEST['place_name']!=""){
 print $_REQUEST['place_name'];
}
 ?>
</body>
</html>

load_place_div .php File

<?php
mysql_connect("localhost","root","admin");
mysql_select_db("test");

if(isset($_REQUEST['place']) && $_REQUEST['place'] != ""){

$place = $_REQUEST['place'];
$load_query  = "SELECT place_name,fromID FROM place_name WHERE fromID =
'$place' ";
$load_result =  mysql_query($load_query);
?>
<select multiple="multiple" name="place_name" >
<?php
while($row = mysql_fetch_object($load_result)){
 $place_name = $row->place_name;
 $place_id = $row->fromID;
?>
<option value="<?php echo $place_id; ?> "><?php echo $place_name;
?></option>
       <?php
}
?>
      </select>
<?php
}
?>


-- 
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பரணி  குமார்

Regards
B.S.Bharanikumar

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