I have a website where people can rent items, and rent out items (like Ebay, except renting not buying). For this I need the person renting out the item to be able mark dates (calendar) that are/are not available for the item. I need PHP for this. Also I need another PHP snippet that works in sync with this but on the front end on a different page where people who want to rent the item can see the available dates, and select them. This must be a new calendar for every listing and must be created automatically, ready for the users to edit.