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var options = {
  target: '#message',
  beforeSubmit: showLoader,
  success: showResponse,
  url: 'php/controller.php',
  type: 'post',
  clearForm: 0,
  resetForm: 0
};
$('#admin_form').ajaxForm(options);

function showLoader() {
  $("#loader").fadeIn(200);
}

function hideLoader() {
  $("#loader").fadeOut(200);
};

function showResponse(msg) {
  hideLoader();
  $(this).html(msg);
  $("html, body").animate({
    scrollTop: 0
  }, 600);
}