$(document).ready(function() {
  var countries = $("[cc]");
  countries.on('click keypress', function(e) {
    // if user presses enter, this "selects" the country.
    if (e.type == "keypress" && (e.which !== 13)) {
      return; // don't do anything if a different key is pressed.
    }
    $(".selected").removeClass("selected");
    countries.attr('aria-selected', 'false');
    $(e.target).closest('.country').toggleClass('selected').attr('aria-selected', function(i, oldVal) {
      return oldVal == "false" ? "true" : "false";
    });
  });
});