How would you do this in ajax in rails 3

I have a rails 3.1 app and I am curious how you would do something.

I have a link_to remote option true button    <%=link_to "Add to your Favorites", add_favorite_url(movie_star),:class=>"btn small primary" %>

I need to submit this to the users controller via ajax do some stuff then set the button to say that the favorite has been added.

Can you please tell me how you would accomplish this

I have a method def add_user_to_favorites


Thank You

rule of thumb is get it working first without ajax... then add remote true to the button or link, then add your ajax...


Thank you I did just that now it works