var disabled = !$('#send_email').prop('checked');
$('#email_recipient_contact_id').prop('disabled', disabled);
$('#email_recipient_address').prop('disabled', disabled);
- $('#email_from').prop('disabled', disabled);
+ $('#email_sender').prop('disabled', disabled);
$('#email_subject').prop('disabled', disabled);
$('#email_body').prop('disabled', disabled);
}