Hi, AJAX as implemented and used in Rails is not limited to link_to_remote or form_remote_tag. I would recommend “AJAX on Rails” or other resources by using Google. Next, the more detail that you put into your question the better people on the list can assist you. Lastly, Rails is a web development framework that can be used in many ways to construct an application. Thus, there’s no one way of doing something in Rails.
Good luck,
-Conrad