New pet project, simple group schedular

– Allow user to login/register.
– Select what days they are free to do this project.
– Colate Dates which are good.
– Different shades from Red to Green, where the more green something is, more people can show.
User: ID / Login / Password / email / IM contact
Event: ID / Description /Map / Date Start / Date Finish / Notes (Unique rows)
Event_User: Event.ID / User.ID (Unique rows)
Attendence: User.ID / Attending_bool / Note
Populate Calender:
Given: Event.ID
Select * from attendence, Event_User where Event.ID = $EventID