php - jQuery Ajax not submitting data -


i decided have first go ajax submit data i'm having problems. form seems reset no data sent database, i'm missing obvious here:

jquery (currently included in header of file)

<script> // jquery submit form data via ajax add recovery pack $.ajax({    type:'post',    url: 'addrpack.php',    data:$('#rpack_add_form').serialize(),    success: function(response)    {     $('#rpack_add_form').find('.form_result').html(response); }} </script>

the php/html form

    <form id="rpack_add_form" class='small_form' name='rpack_form' method='post' onsubmit="return submitform();">         contract:         <select id="contract_select" name="contract" onchange="showcontract(this)">             <option value='0'>select contract</option>                 <?php                  $sth = $conn->query("select * `contracts`");                 while($row = $sth->fetch(pdo::fetch_assoc))                 {                     echo '<option value='.$row['contracts_id'].'>'.$row['contracts_name'].'</option>';                 }                 ?>         </select>             <div id="contract1" class="admin_box">                 prefix: <input name='prefix' type='text' id='prefix'><br />                 number: <input name='number' type='text' id='number'><br />                 suffix: <input name='suffix' type='text' id='suffix'><br />             </div>             <div id="contract2" class="admin_box">                 <p>sapce 2nd form @ later date</p>             </div>             <div id="contract3" class="admin_box">                 <p>sapce 3rd form @ later date</p>             </div>         received:             <select id="select_receive" name="received" onchange="showlocation(this)">                 <option value="0">no</option>                 <option value="1">yes</option>             </select><br />         <div id="location_box" style="display: none; padding-top: 5px;">location: <input name='location' type='text' id='location'></div>         <input class='button' type=submit value='add recovery pack' name='add_rpack'>                 </form>     <div class="form_result"> </div> <a class='hide_div' href='javascript:void(0);' onclick='hiderdiscdiv()'>close</a>

the php addrpack.php (this code works when remove ajax part above , submit normal)

            <?php             session_start();             include_once 'config.php';             include_once 'connect.php';             $prefix = $_post['prefix'];             $number = $_post['number'];             $suffix = $_post['suffix'];             $contract = $_post['contract'];             $received = $_post['received'];             $location = $_post['location'];              //check if number has been entered             if (empty ($number))             {                 echo "you need enter number";             }else             {                 $sth = "insert `rpacks` (rpacks_prefix, rpacks_number, rpacks_suffix, rpacks_contract, rpacks_receive, rpacks_location) values (:prefix, :number, :suffix, :contract, :received, :location)";                 $q = $conn->prepare($sth);                 $q->execute(array(':prefix'=>$prefix,':number'=>$number,':suffix'=>$suffix,':contract'=>$contract, ':received'=>$received, ':location'=>$location));                 echo "added";             }

probably syntax error - missing );

$('#rpack_add_form').submit(function(){     $.ajax({        type:'post',        url: 'addrpack.php',        data:$('#rpack_add_form').serialize(),        success: function(response)        {         $('#rpack_add_form').find('.form_result').html(response);        }     });     return false; });

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