const stickySignup = () => {
  const form = $('.signup-form');
  const form_position = form.offset().top;
  const form_height = form.height();

  $(window).scroll(function(e) {
    if(!form.is('.sticky') && $(this).scrollTop() > form_position + form_height) {
      form.addClass('sticky');
    }
    else if(form.is('.sticky') && $(this).scrollTop() <= form_position + form_height) {
      form.removeClass('sticky');
    }
  });
};

export default stickySignup;