Ajax form submit for Wordpress Formidable(Lite) plugin

wordpress-formidable-ajax-submit.js

jQuery(function(){
jQuery('form[id^=form_]').on('submit',function(e){
  var $form = jQuery(this);
  e.preventDefault();
  $form.find('.frm_error_style').remove();
  $form.find('.frm_ajax_loading').show();
  jQuery.ajax({
    type: "POST",
    url: $form.attr('action'),
    data: $form.serialize()
  })
  .done(function(result) {
    var $response = jQuery(result).find('form[id='+$form.attr('id')+']').first();
    var $errorMessage = $response.find('.frm_error_style');
    if($errorMessage.length > 0){
      $form.prepend($errorMessage);
      $response.find('.frm_form_field').each(function(i,v){
        var $element = jQuery(v), $currentElement = $form.find('#'+$element.attr('id')), hasError = false;
        $currentElement.find('.frm_error').remove();
        if($element.hasClass('frm_required_field')){
          hasError = true;
          $currentElement.addClass('frm_required_field');
        }else{
          $currentElement.removeClass('frm_required_field');
        }
        if($element.hasClass('frm_blank_field')){
          hasError = true;
          $currentElement.addClass('frm_blank_field');
        }else{
          $currentElement.removeClass('frm_blank_field');
        }
        if(hasError){
          $currentElement.append($element.find('.frm_error'));
        }
      });
    }else{
      $form.empty().append($response.find('.frm_message'));
      if(typeof __gaTracker != 'undefined'){
        __gaTracker('send', 'event', 'FormSubmit', $form.attr('id').replace(/form_/,''));
      }
    }
    $form.find('.frm_ajax_loading').hide();
  })
  .fail(function() {
    $form.find('.frm_ajax_loading').hide();
    $form.prepend('<div class="frm_error_style">Form gönderilirken hata oluştu. Lütfen daha sonra tekrar deneyin.</div>');
  })
});
});