var Timer = function(id) {
    var gt = 0,
        gi = null;

    var el = typeof id === 'string' ? document.getElementById(id) : null;

    var r = {
        setTime: function(v) {
            gt = v;
        },
        setElement: function(id) {
            el = ocument.getElementById(id);
        },
        get: function() {
            return gt;
        },
        getFormated: function() {
            var h,m,s;

            h = Math.floor(gt/3600);
            m = Math.floor((gt%3600)/60);
            s = gt - h*3600 - m*60;

            if(m<10)
                m = '0'+m;

            if(s<10)
                s = '0'+s;

            return h+":"+m+":"+s;
        },
        reset: function(redraw) {
            redraw = typeof redraw === 'boolean' ? redraw : false;
            gt = 0;
            if(redraw)
               r.redraw();
        },
        start: function(redraw) {
            redraw = typeof redraw === 'boolean' ? redraw : false;
            if(gi===null)
                gi = setInterval(function(){
                    gt++;
                    if(redraw)
                        r.redraw();

                },1000);
        },
        stop: function() {
            if(gi!==null) {
                clearInterval(gi);
                gi = null;
            }
        },
        redraw: function() {
            el.innerHTML = r.getFormated();
        }


    };

    return r;
};