script adds to the page the Auction the list of events: the name of the item, how much is left before the end of the auction, the player who made the bet and the size, the end of the auction and the winning player. The event list is not saved, so each call to a page listing starts over again.
The Galaxytool will follow a similar idea then: submitting activity triggered by the bidding activity of a player (as it is already done with several other ingame elements, such as ingame messages or espionage actions).