function analyticsCallback() {
    var filetypes = /\.(zip|exe|pdf|doc*|xls*|ppt*|mp3)$/i;

    $('a').each(function(){
        var href = $(this).attr('href');

        if ((href.match(/^https?\:/i)) && (!href.match(document.domain))){
            $(this).click(function() {
                var extLink = href.replace(/^https?\:\/\//i, '');
                pageTracker._trackEvent('External', 'Click', extLink);
            });
        }
        else if (href.match(/^mailto\:/i)){
            $(this).click(function() {
                var mailLink = href.replace(/^mailto\:/i, '');
                pageTracker._trackEvent('Email', 'Click', mailLink);
            });
        }
        else if (href.match(filetypes)){
            $(this).click(function() {
                var extension = (/[.]/.exec(href)) ? (/[^.]+$/).exec(href) : undefined;
                var filePath = href.replace(/^https?\:\/\/(www.)mydomain\.com\//i, '');
                pageTracker._trackEvent('Download', 'Click - ' + extension, filePath);
            });
        }
    });
}