I'm planning to run a Call of Cthulhu module. It occurs to me that being able to display the current date in game would be valuable for the players. However, it also would need to display the phase of the moon for that day, and match the real world calendar for the year that the game takes place. I would also need to be albe to turn off the display of the moon phase, and then turn it on later. Initially, the players will not know that the phase of the moon is important - that's something they will learn as the game progresses. So, I want to start with the phase of the moon display off, and then turn it on later when they get this information. The script also needs to work with/under jumpgate. I know that some scripts do, and some don't.  Does anyone know of a script that does this? Any recommendations?