dgmike
5/12/2010 - 12:25 PM

select.html

$(function(){
  $('#select_transporte').change(function(){
    $(this).attr('disabled', 'disabled');
  });
});
<!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" xml:lang="en">
<head>
    <meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
    <title>Select</title>
    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js" type="text/javascript"></script>
    <script src="seu_javascript.js" type="text/javascript"></script>
</head>
<body>
    
<select id="select_transporte" name="transporte">
    <option>-- Selecione --</option>
    <option value="carro">Carro</option>
    <option value="moto">Moto</option>
</select>

</body>
</html>