Ruby on Rails - calendar modifications for existing website

I need someone to build a simple calendar application for an existing Ruby on Rails website. If you look here, this is essentially what I need built: [login to view URL];cid=5 A logged in user can log in and click on the days to indicate the days are available for renting a home. These dates or date ranges will be stored in the database. Other users will be able to view those calendars and the days that are available for renting will be shown in a different color. I will provide you with all existing code and access to the server. You will build the calendar components for displaying and editing the calendar and upload it to the server.