I conclude that there are two ways of constructing a software design: One way is to make it so simple that there are obviously no deficiencies and the other way is to make it so complicated that there are no obvious deficiencies. The first method is far more difficult. http://lambda-the-ultimate.org/node/1446 - Out of the Tarpit Sir Charles Antony Richard (C. A. R.) Hoare The price of reliability is the pursuit of the utmost simplicity. Out of the Tarpit - http://lambda-the-ultimate.org/node/1446 Sir Charles Antony Richard (C. A. R.) Hoare