title: Flipclock.js interval callback method that fires an event every minute
body: <p>I added a flipclock countdown timer to my site and I want a way to fire an event every minute so that I can make a change to an element in the source. I tried adding an alert in the code to see if the callback ever gets fired but I am pretty sure I do not quite understand the documentation of the callback method. I referenced the flipclock.min.js and the flipclock.css and I am able to get the clock to countdown and everything i just need to have an event fire after every minute. This is where you can find the documentation and the download: <a href="http://flipclockjs.com" rel="nofollow">Flipclock.js</a></p>
  
  <p>This is the javascript code that i currently have:</p>
  
  <pre><code>&lt;script type="text/javascript"&gt;
      var clock = $('#clock').FlipClock(3600,{
          countdown: true,
          callbacks: {
              _interval: function () {
                  var time = clock.getTime().time;
                  alert(time);
                  if (time % 60 == 0) {
                      //Change element
                  }
              }
          }
      });
  
  &lt;/script&gt;
  </code></pre>
  
  <p>Here is the html:</p>
  
  <pre><code>&lt;div id="clock-container"style="width: 100%"&gt;
      &lt;div class="col-lg-6" id="clock"&gt;&lt;/div&gt;
  &lt;/div&gt;
  </code></pre>