Financial problems: A number of things could happen to an airline company, and
some of the things might cause financial problems. If this pop-up appears to a
player, he should take action in a hurry and do something to avoid ending up
bankrupt.

Closed: This will be the end of the game for the specific player.

Information pop-ups:

New plane released: When a new plane is on the market, this pop-up will tell you
about the model. After this pop-up has appeared, the new plane will be for sale
in the Buy/Sell function.

Another year passed: Every new year this pop-up will appear.

Well now i'm finally finished with this doc file for the excellent game
Airliners. I hope you will enjoy the game.