jQuery.clock

jQuery.clock.js

jQuery.fn.clock = (function () {
    "use strict";
    return function () {
        return this.each(function (i, element) {
            var d = 0, h = 0, m = 0, s = 0, 
                date = jQuery.trim(element.innerHTML), sd;
                
            function update() {
                var time = "";
                if (d > 0) {
                    time += d + "d ";
                }
                if (h > 0) {
                    time += h + "h ";
                }
                if (m > 0) {
                    time += m + "m ";
                }
                if (s > 0) {
                    time += s + "s";
                }
                element.innerHTML = time;
            }
            
            if (!!date) {
                sd = new Date() - new Date(date);
                if (sd === sd) {
                    sd = new Date(new Date() - new Date(date));
                    m = sd.getMinutes();
                    h = sd.getHours() - 1;
                    s = sd.getSeconds();
                }
            }
            
            update();
            setInterval(function () {
                if (++s === 60) {
                    s = 0;
                    if (++m === 60) {
                        m = 0;
                        if (++h === 24) {
                            h = 0;
                            if (++d === 30) {
                                d = 0;
                            }
                        }
                    }
                }
                update();
            }, 1000);
        });
    };
}());