Регистрация пользователя Ajax Битрикс

register.php

<?
include($_SERVER["DOCUMENT_ROOT"]."/bitrix/modules/main/include/prolog_before.php");
global $USER;
$arResult = $USER->Register($_REQUEST['mail'], $_REQUEST['name'], $_REQUEST['last_name'], $_REQUEST['pass'], $_REQUEST['pass'], $_REQUEST['mail']);
exit(json_encode($arResult));

script.js

//регистрация нового пользователя
$(document).on("click", '#register', function(e) {
    e.preventDefault();
      $.ajax({
          url: '/local/ajax/register.php',
          data: {
            name: $('#register_form input[name="name"]').val(),
            last_name: $('#register_form input[name="last_name"]').val(),
            phone: $('#register_form input[name="phone"]').val(),
            pass: $('#register_form input[name="passw"]').val(),
            mail: $('#register_form input[name="mail"]').val(),
        },
        dataType: 'json',
          success: function(result){
              if(result.TYPE == 'ERROR'){
                  $('#register_result').html(result.MESSAGE).css({"color": "red"});
              }else{
                  $('#register_result').html(result.MESSAGE).css({"color": "green"});
                  setTimeout(function(){
                      location.reload();
                  }, 1000);
              }
          }
      });
});