function randomSelect() {
  randomBeer.addEventListener('click', function() {
    var number = Math.floor(Math.random() * 8);
    popUp[number].style.visibility = 'visible';
    popUp[number].style.transform = 'scaleY(1)';
    return number;
  })
}


function closeRandomSelect() {
  var randSelNumb = randomSelect();
  console.log(randSelNumb);
}

function randomSelect(callback) {
  randomBeer.addEventListener('click', function() {
    var number = Math.floor(Math.random() * 8);
    popUp[number].style.visibility = 'visible';
    popUp[number].style.transform = 'scaleY(1)';
    callback(number);
  })
}


function closeRandomSelect() {
  randomSelect(function(number){
    console.log(number);
  });
}