Ajaxing Checkboxes

The problem is, I don't have a "check_box_to_remote" method.

Can you give me some ideas on this? Or it's not possible?

if it really just hides the calendar in html and doesn't do any
database stuff serverside you can do it like:

<div id="calendar_1">
  # calendar stuff here

<%=f.check_box, :onclick => "$('calendar_#{calendar.id}').toggle()" %>

as i mentioned, this only makes sense if you dont need any serverside
action here.