resetInput.jQuery.js

(function($) {
  return $.fn.resetInput = function(callback) {
    return this.each(function() {
      var $el, type;
      $el = $(this);
      type = this.type;
      switch (type) {
        case 'select-one':
        case 'select-multiple':
          $el.find('option').each(function() {
            return this.selected = this.defaultSelected;
          });
          break;
        case 'checkbox':
        case 'radio':
          this.checked = this.defaultChecked;
          break;
        default:
          this.value = this.defaultValue;
      }
      if (typeof callback === 'function') {
        return callback.call(this);
      }
    });
  };
})(jQuery);