Simple JS timer created for GA class.

simple_timer.js

// $(document).ready(function() {
//   var counter = timer(90); // time in seconds
//   var status = "active";

//   function timer(count) {
//     var intervalID = setInterval(function() {
//       $('.timer').text(status + ": " + count);
//       count -= 1;

//       if (count <= 0 && status == "active") {
//         clearInterval(intervalID);
//         status = "rest";
//         timer(30); // time in seconds

//       } else if (count <= 0 && status == "rest") {
//         clearInterval(intervalID);
//         status = "active";
//         timer(90); // time in seconds
//       }
//     }, 1000);
//   }
// });



$(document).ready(function() {
  (function timer(count, status) {
    var intervalID = setInterval(function() {
      document.querySelectorAll('.timer')[0].innerHTML = (status + ": " + Math.floor(count/ 60) + ":" + (count % 60));
      count -= 1;

      if (count <= 0 && status == "active") {
        clearInterval(intervalID);
        timer(30, "rest");
      } else if (count <= 0 && status == "rest") {
        clearInterval(intervalID);
        timer(150, "active");
      }
    }, 1000);
  })(10, "active");
});

// Requires the page to have something like this: <p class="timer">Ready?</p>