local slides = shapescape.getSlides()
if self.txt == "  Back" and slides.cSlide > 1 then
    shapescape.setSlide(slides.cSlide-1)
else
    a = {lUtils.popup("LevelOS Setup","Are you sure you want to exit the LevelOS installer?",27,9,{"Cancel","Confirm"})}
    if a[1] and a[3] == "Confirm" then
        term.setBackgroundColor(colors.black)
        term.clear()
        term.setCursorPos(1,1)
        shapescape.exit()
    end
end