on keydown
  global WhichBug, TxtCursor
  set tensdigit to 21 + ((WhichBug -1) * 2) --GJI ADDED
  set onesdigit to 22 + ((WhichBug -1) * 2) --GJI added
  
  if (the key = return) or (the key = enter) then
    if (char 2 of field "changer") = "" then -- get rid of cursor in ones digit
      set the visible of sprite onesdigit to false
      set the castnum of sprite onesdigit to the number of cast "tens"
      set TxtCursor to 0 -- no cursor
    end if
    
    checkit
    
  else
    if the key = BACKSPACE then 
      set monkey = field "changer"
      if the number of chars in monkey > 1 then 
        set monkey = char 1 to (the number of chars in monkey -1) of monkey
        set the text of cast "changer" = monkey
      else 
        set the text of cast "changer" = ""
      end if
    else
      if the number of chars in field "changer" < 2 then --GJI Changed 3 to 2
        if (the key >="0") and (the key <= "9") then  put (field "changer"  & the key) into field "changer"
      end if    
    end if
    
    set holdchar1 to (char 1 of field "changer")
    set holdchar2 to (char 2 of field "changer")
    
    if holdchar1 = "" then
      set the visible of sprite onesdigit to false
      set the castnum of sprite tensdigit to the number of cast "tens"
      set TxtCursor to tensdigit
      updatestage
      set the visible of sprite tensdigit to true
      
    else --there must be a digit in the tens place so show it
      
      set the castnum of sprite tensdigit = Â
           the number of cast ("digit" & holdchar1)
      updatestage
      set the visible of sprite tensdigit to true
      
      if holdchar2 = "" then
        set the castnum of sprite onesdigit to the number of cast "tens"
        updatestage
        set Txtcursor to onesdigit
        set the visible of sprite onesdigit to true
        
      else
        
        set the castnum of sprite onesdigit = Â
           the number of cast ("digit" & holdchar2)
        set TxtCursor to 0 -- no cursor
        updatestage
        set the visible of sprite onesdigit to true
        
      end if
    end if
    -- stuff above added
  end if
  
end