Add slide numbers to Google’s html5slides

numbers.js

var createSlideNumbering = function (skipFirstN) {
    var num = 0,
        slides = $('.slides article'),
        slidesNum = slides.length;
    slides.each(function () {
        var $this = $(this);
        num += 1;
        if (num <= skipFirstN)
            return;
        if ( $this.hasClass('nonumber') ) {
            return;
        }


        jQuery('<div/>', {
            'class': 'counter',
            text: num + '/' + slidesNum
        }).appendTo($this);
    });
};

$(window).load(function () {
    createSlideNumbering(2);
});

style.css

.counter {
    bottom: 1em;
    font-size: 0.5em;
    position: absolute;
    right: 1em;
    z-index: 999;
}

.counter:before { content: '[ '; }
.counter:after { content: ' ]'; }