var time = 10;

var initialOffset = '440';

var i = 1

​

/* Need initial run as interval hasn't yet occured... */

$('.circle_animation').css('stroke-dashoffset', initialOffset-(1*(initialOffset/time)));

​

var interval = setInterval(function() {

        $('h3').text(secondsToTime(1800-i).m.toString()+" min " +secondsToTime(1800-i).s.toString()+" sek");

        if (i == time) {    

      clearInterval(interval);

            return;

    }

    $('.circle_animation').css('stroke-dashoffset', initialOffset-((i+1)*(initialOffset/time)));

    i++;

}, 1000);

​

​

function secondsToTime(secs)

{

    var hours = Math.floor(secs / (60 * 60));

    var divisor_for_minutes = secs % (60 * 60);

    var minutes = Math.floor(divisor_for_minutes / 60);

    var divisor_for_seconds = divisor_for_minutes % 60;

    var seconds = Math.ceil(divisor_for_seconds);

    var obj = {

        "m": minutes,

        "s": seconds

    };

    return obj;

}