-- This code is public domain
-- Like pairs() but sorted
function sPairs(inTable, sFunc)
  if not sFunc then
    sFunc = function(a, b)
      local ta = type(a)
      local tb = type(b)
      if(ta == tb) then
        if ta == 'number'
          then return a < b
        end
        return tostring(a) <
               tostring(b)
      end
      return ta < tb
    end
  end
  local keyList = {}
  local index = 1
  for k,_ in pairs(inTable) do
    table.insert(keyList,k)
  end
  table.sort(keyList, sFunc)
  return function()
    key = keyList[index]
    index = index + 1
    return key, inTable[key]
  end
end