key formater for cc:tweaked

keyName = {}
keyName[1] = "a"
keyName[2] = "b"
keyName[3] = "c"
keyName[4] = "d"
keyName[5] = "e"
keyName[6] = "f"
keyName[7] = "g"
keyName[8] = "h"
keyName[9] = "i"
keyName[10] = "j"
keyName[11] = "k"
keyName[12] = "k"
keyName[13] = "m"
keyName[14] = "n"
keyName[15] = "o"
keyName[16] = "p"
keyName[17] = "q"
keyName[18] = "r"
keyName[19] = "s"
keyName[20] = "t"
keyName[21] = "u"
keyName[22] = "v"
keyName[23] = "w"
keyName[24] = "x"
keyName[25] = "y"
keyName[26] = "z"

function Keyformat(key)
    if key == nil then
      error("key needs a value",2)
  elseif keyName[key-64] == nil then
      error("needs to be a valad key!",3)
  end
    return(keyName[key-64])
      end