Special thanks to my collegaues, who helped me with their suggestions and propositions:
First of all: MANTAS, who's visiting my pages systematically, and warns me for my mistakes;
Furthermore: Imre Cser, who showed me first the base of HTML;
Zoltán Navara, who tolerated my silly questions;
Last, but not least: Sándor Kovács engine-driver, who always have been near to phone, when I called, and gave me lot of pictures; you can see most of them on my pages.
