link_to with :remote=>true and how about :before=> ?

Hey Guys,

Before Rails 3.0 I was to be able invoke some javascript before and after an ajax call was made, like this:

link_to_remote "aLabel", url, :before=>$('indicator').show(), :complete=>$('indicator').hide()

In Rails 3.0, I understand I need to use link_to and pass the parameter :remote=>true. link_to however, doesn't accept :complete and :before parameters. I can implement the :complete action with an rjs script that gets executed when the call completes. I'm not sure how to implement the :before action though... any ideas would be appreciated.