Countdown timer

Usage:

#load css file
<link rel="stylesheet" href="your-path/countdown.css">

<div class="countdown-timer" data-endtime="yourDateString" 
  data-title="yourTitle" data-description="yourDescription"></div>

#load js file
<script src="your-path/countdown.js"></script>

<script>
  #init countdown
  initCountdown('.countdown-timer');
</script>