$(document).ready(function() {

    $(".outside-link").click(function(event) {

        var answer = confirm("Please note: you are about to leave the Testim site\n\nClick \"OK\" to proceed to the third-party website or \"Cancel\" to return to Testim.com");
        if (answer == true) {
            return true;
        }
        else {

            event.preventDefault();

        }

    });
});