fullcalendar RSS based events

fullcalendarrssevents.js

function parseRSS(url, callback) {
    var fullpath = document.location.protocol + '//ajax.googleapis.com/ajax/services/feed/load?v=1.0&num=10&callback=?&q=' + encodeURIComponent(url);
    console.log(fullpath);
    jQuery.ajax({
        url: fullpath,
        dataType: 'jsonp',
        success: function (data) {
            console.log(data);
            callback(data.responseData.feed);
        }
    });
}

function responseToEvents(response) {
    var events = [];
    for (i in response.entries) {
        var item = response.entries[i];
        events.push({
            title: item.contentSnippet,
            start: item.publishedDate,
            url: item.link
        });
    }
    return events;
}

function getEvents(start, end, timezone, callback) {
    parseRSS('https://eventsfeed.constantcontact.com/calendar/rss?eso=001UZDecOAU7_KiXOoHy8wnzw==', function (response) {
        callback(responseToEvents(response))
    });
}