Help for menu cmd

local w,h = term.getSize()

function prc(text, y)
  local w = term.getSize()
  local _, cy = term.getCursorPos()
  term.setCursorPos(math.ceil((w-#text)/2), y or cy)
  write(text)
end

function help()
term.setBackgroundColor(colors.lightGray)
term.clear()
sleep (0.1)
term.setBackgroundColor(colors.gray)
term.clear()
sleep (0.1)
term.setBackgroundColor(colors.white)
term.setTextColor(colors.black)
term.clear()
term.setBackgroundColor(colors.white)
term.setTextColor(colors.black)
term.clear()
term.setBackgroundColor(colors.white)
term.setTextColor(colors.blue)
term.setCursorPos(w/2-5,h-1)
print"  Pepek"
term.setCursorPos(w/2+3,h-1)
print"Soft  "
term.setCursorPos(w/2+2,h-1)
term.setTextColor(colors.lime)
print"@"
term.setTextColor(colors.black)
prc("List of command for Pepdroll Seven", 1)
term.setCursorPos(2,3)
write" - 'cmd' -> Starts a command prompt (CraftOS),"
term.setCursorPos(2,4)
write" - 'opt' -> Starts a Setting App*,"
term.setCursorPos(2,5)
write" - 'reload os' -> Restart Desktop App,"
term.setCursorPos(2,6)
write" - 'oldwin' -> Change color to Windows 98,95,"
term.setCursorPos(2,7)
write" - 'defcol' -> Change to default color,"
term.setCursorPos(2,8)
write" - 'cls list' -> Reset menu to default,"
term.setCursorPos(2,9)
write" - 'pmanager' -> Starts a Pmanager App,"
term.setCursorPos(2,10)
write" - 'version' -> Shows the current version,"
term.setCursorPos(2,11)
write" - 'label' -> Open setting and set Label,"
term.setCursorPos(2,12)
write" - 'update' -> Update desktop App,"
term.setCursorPos(2,13)
write" - 'update -all' -> Update more App,"
term.setCursorPos(2,14)
write" - 'xp mode' -> Change theme to XP mode"
term.setCursorPos(2,15)
write"   (update not support)"
term.setCursorPos(2,17)
write"* Functional after downloading components."



while true do
    local event, button, x, y = os.pullEvent("mouse_click")
    xy = x..","..y

        if button == 1 or button == 2 then
        error()
        end
end
end


help()