Coupon style in jQuery The Final countdown

Using the plugin to create countdowns with the format hh:mm:ss like the populars coupons sites.
Reset countdown to .

Source code:

<script type="text/javascript" charset="utf-8">
// Javascript
$(function() {
  $('div#clock').countdown(new Date(2015, 6, 28), function(event) {
    // Update every second one time only
    if(event.type != "seconds") return;
    // Calculate the time left
    var timeLeft = [
      event.lasting.hours + event.lasting.days * 24,
      event.lasting.minutes,
      event.lasting.seconds
    ];
    // Convert the number to two digits strings
    for(var i = 0; i < timeLeft.length; ++i) {
      timeLeft[i] = (timeLeft[i] < 10 ? '0' : '') + timeLeft[i].toString();
    }
    // Concatenate the strings with : and update the html
    $(this).html(timeLeft.join(':'));
  });
});
</script>

<!-- HTML -->
<div id="clock"></div>