Online countdown clock - data from Google calendar xml / rss

I am looking for help with an online countdown clock that will use event data from a *public google calendar - rss or xml*. Notes: - The source Google calendar has recurring dates of events - for instance Monday at 10 am (recurring). - The script will countdown to an event similar to this site [login to view URL] - Then, the script will display a message a "online event in session - click here to access the online event". This would be displayed while the event is in progress - for instance on Monday from 10:00 am to 12:00 Noon. For 2 hours) This data will be in the calendar event - begin and end time. - Then at the end of that period, it will start a countdown to the next Google calendar event - for instance Friday at 2:00 pm. - The website is running Drupal 6 - Script should offer option of changing css/ background color to match site etc. - Script should not display any ads or links to outside sites. *** Please indicate your experience with similar projects. *** To show you have read this carefully, please add to your message / bid - "the script will display the custom message during the event" thanks