Yes, it is possible. You could use webstorage to store the state and time of last access, and when you open it you could see how much time has elapsed and cause things to happen as if it was running the whole time.R0J0hound2013-06-25 22:02:58
@Sulli: That's not really relevant to this thread. Be sure to check the webstorage manual entry. You can see the datas are stored locally. You can still have access to those datas, they are stored on the client's computer.
i was building one simple and trying to see if it work on forum signatures, like a mini tamagotchi interactive badge or something but i got lazy thinking how i could handle differents ID's for each unique player monster and dont even kno if the forum accept this kinda thing...
anyway its very possible to make a tamagotchi and is easy if you want to make one simple like the classic