An example of how the system works:
The current bid for an item is €10.00. Neil is the highest bidder and has placed a maximum bid of €12.00 on the item.
His maximum bid is kept confidential from other members.
Loraine views the item and places a maximum bid of €15.00. Loraine becomes the highest bidder. Neil’s bid is incremented to his maximum of €12.00. Loraine's bid is now €13. We send Neil an email that he has been outbid. If he doesn’t raise his maximum bid, Loraine wins the item.