RoR-ajax-reload partial file

Question

hi

I am using checkboxes, on clicking checkbox my partial page has to refresh. And partial page is displayed in thickbox.

I want to refresh it using ajax.

I am using code written below, but no page reload is happening

     respond_to do |format|
        format.js{ render :update do |page|
          page.replace_html :content, :partial => 'friends'
        end}
      end

my partial file _friends is inside another partial file _user.