$(function () {

  $('.pricing-package').click(function () {
    $(this).toggleClass('open');
  });

  $('.toggle-monthly').click(function (){
    $('#pricing').removeClass('yearly');
    $('.plan-interval-switch .btn-interval').removeClass('active')
        .filter('.toggle-monthly').addClass('active');
    $('.pricing-package').each(function () {
      if($(this).data('annual-only')) {
        $(this).addClass('annual-only');
      }
    });
    return false;
  });

  $('.toggle-yearly').click(function (){
    $('#pricing').addClass('yearly');
    $('.plan-interval-switch .btn-interval').removeClass('active')
        .filter('.toggle-yearly').addClass('active');
    $('.pricing-package').removeClass('annual-only');
    return false;
  });

});