I have a project. I want to disable the date for the cars already booked. please can you help me?

I have a project. I want to disable the date for the cars already booked. please can you help me?


      <link href="../form/jquery-ui.css" rel="stylesheet">
      <script src="../form/jquery-2.2.2.js"></script>
      <script src="../form/jquery-ui.js"></script>
 
 

 
<script type="text/javascript" language="javascript">
   $(function() {  var excludedDates =  ["24-05-2014" , "30-06-2014" , "31-05-2014" ]; 
    $.datepicker.setDefaults({defaultDate: '+1w', changeMonth: false,dateFormat: "dd-mm-yy", numberOfMonths: 1, minDate: 0, beforeShowDay:
   function(date)
   { date = $.datepicker.formatDate('dd-mm-yy', date); var excluded = $.inArray(date, excludedDates) > -1; return [!excluded, '']; }}); $('#from').datepicker({onSelect: function(selectedDate) { $('#to').datepicker('option', 'minDate', selectedDate || 0); }}); $('#to').datepicker({onSelect: function(selectedDate) { $('#from').datepicker('option', 'maxDate', selectedDate); }});});
 
</script>
 <?php
   $blacklist = blacklist();
  ?>

   
<script type="text/javascript" language="javascript">




    $(function() {
 
      var excludedDates = <? echo json_encode($blacklist)?>; // Converted from PHP using json encode
      $.datepicker.setDefaults({defaultDate: '+1w', changeMonth: false,dateFormat: "dd-mm-yy",
            numberOfMonths: 1, minDate: 0, beforeShowDay: function(date) {
                  date = $.datepicker.formatDate('dd-mm-yy', date);
                  var excluded = $.inArray(date, excludedDates) > -1;
                  return [!excluded, ''];
            }});
      $('#from').datepicker({onSelect: function(selectedDate) {
            $('#to').datepicker('option', 'minDate', selectedDate || 0);
      }});
      $('#to').datepicker({onSelect: function(selectedDate) {
            $('#from').datepicker('option', 'maxDate', selectedDate);
      }});
});
  </script>
<?php  
   
   function blacklist()
   {

include '../includes/config1.php';
mysql_select_db('carsrental');
$id= isset($_REQUEST['id'])? $_REQUEST['id']:'';

$sql = "SELECT pickupDate,dropoffDate   FROM reservation  WHERE id = '$id' AND status = 'Confirmed' ";
$res = mysql_query($sql);

while($row = mysql_fetch_array($res))
{
  $from= $row['pickupDate'];
  $to= $row['dropoffDate'];
 

}
}

 ?>