The problem is that every time I think I've got somewhere the goalposts change. I think I find a solution but they don't like that. I felt like I'd achieved a fair deal when I finally gave up with website stuff for the evening. But they've changed things again. I'm not 100% I'll be able to get paypal working as they'll want. It's just such a fiddly little thing. The idea sounded simple but then it got complicated with their various requirements and desire for paypal. It's just really frustrating.

Hopefully tomorrow I'll have a few answers and be able to make some more headway. I'd like to start integrating the code with the site style tomorrow. I think I might leave out error checking temporarily though.

I wonder how easy it would be to colour-code the boxes of the calendar depending on how many slots are booked.

I've also got to work out how not to show a link when it's prior to the current date..