I am working on a client project, where the client is gradually
transitioning forms on their site to use auto completion (w/ AJAX). I
would like to visually signal to users which form fields are auto
completing and which ones are "static". I am wondering if there is a
"pattern" for alerting to users this type of functionality. We can
create something for this client's purpose, but I would like leverage
any convention, if there is already one out there.