We have a urgent project. We use the calendartool daypilot. This tool is made in an asp.net and ajax environment. What we need is two customized views of the default calendars. The calendars itself are good but it needs to be extend a little bit. See attachenment.
So just to be clear: You need to adapt the daypilot tool, you can find the code on the daypilot site. You do NOT need to build it all by yourself. If you look at the code you will see that is clean and easy to understand.