build photo calendar using php

Making photo calendar using php 1. This is a php app 2. user upload 36 photos 3. those 36 photos are constructed 12 monthly calendars of year 2012. Each month has 3 photos as background 4. user can replace photos by clicking either one of the 36 photos, and then select another photo. 5. user can change any of the 36 photos any time after confirmation. 6. there is a print function for user to print very fit in A4 size paper 7. the start year can be changed, default is 2012