// rAF - https://raw.githubusercontent.com/darius/requestAnimationFrame/master/requestAnimationFrame.min.js
"use strict";if(!Date.now)Date.now=function(){return(new Date).getTime()};(function(){var n=["webkit","moz"];for(var e=0;e<n.length&&!window.requestAnimationFrame;++e){var i=n[e];window.requestAnimationFrame=window[i+"RequestAnimationFrame"];window.cancelAnimationFrame=window[i+"CancelAnimationFrame"]||window[i+"CancelRequestAnimationFrame"]}if(/iP(ad|hone|od).*OS 6/.test(window.navigator.userAgent)||!window.requestAnimationFrame||!window.cancelAnimationFrame){var a=0;window.requestAnimationFrame=function(n){var e=Date.now();var i=Math.max(a+16,e);return setTimeout(function(){n(a=i)},i-e)};window.cancelAnimationFrame=clearTimeout}})();

// It's the final countdown!
(function(doc) {
    'use strict';
    var totalTime = 15,
        currentTime = totalTime,
        percentTime = null,
        timerId = null,
        timerText = doc.querySelector('.text'),
        timerCircle = doc.querySelector('.circle');

    timerId = function() {
        if (currentTime === -1) { return; }
        timerText.textContent = currentTime;
        percentTime = Math.round((currentTime/totalTime) * 100);
        timerCircle.style.strokeDashoffset = percentTime - 100;
      
        setTimeout(function() {
          	timerText.textContent = currentTime;
            currentTime -= 1;
            requestAnimationFrame(timerId);
        }, 1000);
    };
    timerId();
})(document);