ASP availability calendar

Hi, I need a calendar which shows availability for booking holiday flats in Spain. It should show the availability colour coded (ex. green for available dates and red for alreday booked dates). It should be written in ASP with an access database and I should be able to update it. So I would need some sort of CMS. You can view an example of what I have in mind if you go to [login to view URL] and click on any property and then on the availability button. My budget is quite small but there is the possibility of more work after this. Please send me the cost and some samples URLs of your work.