Defining JavaScript functions to generate AJAX requests

The property contact update form is located in /path/to/repos/www/chapter_08/templates/property_update_contact.html. It starts with a standard HTML <form> tag, along with an identifying header:

        <form action="/property/contact/update/" method="post">
            {% csrf_token %}
            <h1>Update Property Contact</h1>
            <div class="row extra" style="background-color: #C8C8EE;">
                <div class="col-md-6">
                    {{ choose_part_form }}
                </div><!-- end col -->

In the next several lines, you can see that the option to choose a property is populated from an AJAX request, and is thus not represented as a Python form:

                <div class="col-md-6">
                    <label>Property:</label>
                    <select name="prop_propertyKey&quot...