travelsearch.js:
function completeTravelSearch(fullData, windowID, travelType, location, checkin, checkout, stayOnPage, poc) {

    var hasUserHash = checkIfUserHash();

    if (hasUserHash) {
        // add user_hash to serialized data
        var user_hash = encodeURIComponent(getCookie('user_hash'));
        fullData += '&hash=' + user_hash;
    }

    if (utm_source) {
        fullData += '&utm_source=' + utm_source;
    }

    if (utm_medium) {
        fullData += '&utm_medium=' + utm_medium;
    }

    if (utm_campaign) {
        fullData += '&utm_campaign=' + utm_campaign;
    }

    if (gclid) {
        fullData += '&gclid=' + gclid;
    }

    windowID = makeID();
    window.open(window.location.origin + '/lp/loading?' + fullData, windowID);

    if (travelType === 'flight') {
        $('#travel-search-flight').foundation('close');
    } else {
        $('#travel-search-hotel').foundation('close');
    }

    searchCount++;

    // send to analytics
    ga_logTravelSearchComplete(travelType, poc);

    if (Object.keys(optout).length > 0) {
        ga_logOptOut(travelType, poc, optout);
    }

    // check if this is their first search or if they've already been forwarded once
    if (firstSearch(window.location.href, searchCount)) {
        forwardToPage(travelType, location, checkin, checkout, stayOnPage, poc);
    }
}

loading.js:
briteVerify(email, function(accepted) {

            if (accepted) {

                // Make a POST ajax call to /pocSubscription
                // with all the url query strings as requests
                // back to Larael.
                $.ajax({
                    type: "POST",
                    url: "/lp/pocSubscription",
                    data: urlData,
                    // On Success, get the returned data,
                    // extract the URL and send it to the
                    // Booking buddy function
                    success: function(data) {
                        sendDataToSmarterTravel(urlData);
                        sendDataToBookingBuddy(data);
                    },
                    // On error, as a fall back, take the user
                    // to the deals page.
                    error: function () {
                        // this didn't work, go straight to the deals page
                        setTimeout(function (){
                            $('#loading').fadeOut();
                            window.location = window.location.origin + '/deals';
                        }, 100);
                    }
                });
            }
        });