function countdown(){
    window.setTimeout(countdown, 1000);
    
    var sec = $("#secondsLeft");
    var min = $("#minutesLeft");
    var hour = $("#hoursLeft");
    if(sec.html() == 0){
        if(min.html() > 0){
            sec.html("59");
            min.html(min.html() - 1);    
        }else if(hour.html() > 0){
            sec.html("59");
            min.html("59");
            hour.html(hour.html() - 1);
        } 
    }else{
        sec.html(sec.html() - 1);    
    }    
}
$(function(){window.setTimeout(countdown, 1000)});