select value to $.ajax type post

select value to $.ajax type post

Hello,

Sorry, I looked for in this forum but I didn't find anything :(
I want to forward the result of my select (one choice) to my php file thanks to Jquery.ajax but "$('#cdr_search_list').val" seems not to be a good method. 

In fact, I have the following answer with Firedebug : 
Array
(
    [cdr_search_list] => Array
        (            [0] => test1         )
)


Code :
  1. $('#cdr_search_list').bind('change',
  2.   function() {
  3.     $.ajax({
  4.       url: 'proxy_cdr_get_id.php',
  5.       type: 'POST',
  6.       data: {cdr_search_list:$('#cdr_search_list').val()},
  7.       //data: {cdr_search_list:$('#cdr_search_list:selected').serialize()},
  8.       dataType: 'json',
  9.       cache: false,
  10.       error: function(xhr, textStatus, errorThrown) {
  11.         console.log(textStatus + " [" + errorThrown + "]");
  12.       },
  13.       success: function(result, textStatus, XMLHttpRequest) {
  14.        $('#cdr_calldate').val(result[1]); 
  15.        $('#cdr_duration').val(result[2]);
  16.        .....etc
  17.        }


  20. <select id='cdr_search_list' multiple size="5" style="width:95%">
  21.       <option value="test1">23 2012-10-02 10:44:56 130 130 0 0101010101 0172761699 caller 200 8 8 4280 4296 0 1 10 10 0 0 0 0 45 45</option>
  22.       <option value="test2">23 2012-10-02 11:44:56 130 130 0 0101010101 0172761699 caller 200 8 8 4280 4296 0 1 10 10 0 0 0 0 45 45</option>
  23. </select>

Could you help me ?

Thank you