Create a bit.ly URL by passing the URL you want shortened and preforming a function with it

jQuery_bitlyfi.js

function bitlyfi(url, func) {
    // Put your own login and apiKey
    var defaults = {
        login: '',
        apiKey: '',
        longUrl: url
    };
    // Build the URL to query
    var bitly = "http://api.bit.ly/v3/shorten?" + "&login=" + defaults.login + "&apiKey=" + defaults.apiKey + "&longUrl=" + defaults.longUrl + "&format=json&callback=?";

    // Utilize the bit.ly API
    $.getJSON(bitly, function (results) {
        if (results.status_txt === "OK") {
            return func(results.data["url"]);
        }
        else {
            return func(url);
        }
    });
}

//Example usage
$('a').click(function (e) {
    e.preventDefault();
    var href = $(this).attr('href');
    bitlyfi(href, function (bitlyfiedURL) {
        alert(bitlyfiedURL);
    });
});