Open EdX certificate generation javascript

gistfile1.txt

      <p id="verify_button_by_clicking_msg">By clicking the button below, you assert that you have completed the course in its entirety.</p>

      <p><input type=button value="Yes, I Agree." id="User_Verify_Button" style="margin-bottom: 20px;" /></p>
      <p class="verify-button-success-text" style="font-weight: bold; color: #008200;"></p>
      
      <script type="text/javascript">
        var success_message = "Your grading and certification request has been received, <br />if you have passed, your certificate should be available in the next 20 minutes.";
        var failure_message = "We're sorry; users who haven't created accounts and registered for the course may not receive Statements of Accomplishment.";

        // for actual value of username, use scraped_username.split(':')[1].trim(); to get actual value
        var scraped_username = $('li.dropdown a.logged-in-username').text();
        if (scraped_username) {
            document.getElementById('User_Verify_Button').addEventListener("click",
            function(event) {
              (function(event) {
                $.ajax({
                  type:     'POST',
                  url:      '/request_certificate',
                  data:     {'course_id': $$course_id},
                  success:  function(data) {
                    $('.verify-button-success-text').html(success_message);
                  }
                });
              }).call(document.getElementById('User_Verify_Button'), event);
            });
        } else {
            $('#verify_button_by_clicking_msg').html(failure_message);
            $('#User_Verify_Button').remove();
        };
      </script>