Multiple AJAX '#url_token' on a base URL with Rails3

I am working on a Web Application with rails which is more of a single page ( think a dashboard )

I want a left side strip fetching a list with and a main app area to the left rendering most of the Application (All with jQuery)

In Rails I have a single controller Dashboard for now. I want the request of left side bar to reach the appropriate method so as I can reply with Json. Similarly for the main area.

As the application gets complex, the URL appended with #specific URL is also something I want.

How would the routes work in this case? I have read the Rails Official docs and searched quite a lot but could not find much information.