// returns TRUE if the item is flagged as infinite.
// - oItem: an item.
// The infinite property affects the buying/selling behavior of the item in a store.
// An infinite item will still be available to purchase from a store after a player
// buys the item (non-infinite items will disappear from the store when purchased).
int GetInfiniteFlag(object oItem)

WARNING: This function is missing from NWN2 and thus if a script is imported which uses this function then it will not compile