BloggerDownloadCounter.js

$.each($('[data-download-count=true]'), function (i, e) {
    var elem = $(e).parent().find('#download-count').addClass('loading');
    var id = $(e).closest('.post-body').siblings('a[name]').attr('name') + "-" + $(e).attr('id');
    var downloadStats = new Firebase("https://blogstats.firebaseio.com/downloads/id/" + id);
    var data = {}, isnew = false;
    downloadStats.once('value', function (snapshot) {
        data = snapshot.val();
        if (data == null) {
            data = {};
            data.value = 0;
            data.url = window.location.href;
            data.id = id;
            isnew = true;
        }
        elem.removeClass('loading').text(data.value);
    });
    $(e).click(function (e) {
        data.value++;
        if (isnew) downloadStats.set(data);
        else downloadStats.child('value').set(data.value);
    });
});