Faking placeholder in IE8

placeholder.js

/**
 * Set the "data-placeholder" attribute on your input fields.
 * The script is only run if placeholders are not supported.
 * Depends on jQuery >= 1.8
**/
(function (window, $) {
  var e = document.createElement('input');
  if (!('placeholder' in e)) {
    $('input[data-placeholder]').each(function (idx, element) {
      $(element).val($(element).attr('data-placeholder'));
    });
    $('body').on('focus', 'input[data-placeholder]', function () {
      if ($(this).val() === $(this).attr('data-placeholder')) $(this).val('');
    });
    $('body').on('blur', 'input[data-placeholder]', function () {
      if ($(this).val() === '') $(this).val($(this).attr('data-placeholder'));
    });
  }
})(window, jQuery);