From http://sciactive.com/pnotify/#demos-advanced

dynamicNotice.js

function dyn_notice() {
    var percent = 0;
    var notice = $.pnotify({
        title: "Please Wait",
        type: 'info',
        icon: 'picon picon-throbber',
        hide: false,
        closer: false,
        sticker: false,
        opacity: .75,
        shadow: false,
        width: "170px"
    });

    setTimeout(function() {
        notice.pnotify({
            title: false
        });
        var interval = setInterval(function() {
            percent += 2;
            var options = {
                text: percent + "% complete."
            };
            if (percent == 80) options.title = "Almost There";
            if (percent >= 100) {
                window.clearInterval(interval);
                options.title = "Done!";
                options.type = "success";
                options.hide = true;
                options.closer = true;
                options.sticker = true;
                options.icon = 'picon picon-task-complete';
                options.opacity = 1;
                options.shadow = true;
                options.width = $.pnotify.defaults.width;
                //options.min_height = "300px";
            }
            notice.pnotify(options);
        }, 120);
    }, 2000);
}