there is possibility to navigate with mouse + keyboard, or
        only keyboard.

        on the main screen, pressing on the keyboard:
        left arrow will change page by -1 (if possible)
        right arrow will change page by 1 (if possible)
        1 will change text to polish (if text is not polish already)
        2 will change text to english (if text is not english already)
        3 will get you to the photos

        left moue button selects : polish/english/photos/(next/prev)pages
        right mouse button exits

        in the PHOTOS:
        left arrow or left mouse button: next slide (if possible)
        right arrow or right mouse button: previous slide (if possible)
        escape will exit to main screen
        there are 8 slides : 7 desc. the way in Opole, and 1 with big map