mm for all users including offline

[bsalsa]

finely it works

!msg


code:--------------------------------------------------------------------------------messages = dofile("messages.dat") or {}

function NewUserConnected(user)
   local tmp = messages[user.sName]
   if tmp then
      local n = getn(tmp)
      user:SendData(">> "..n.." messages for you..")
      for i = 1, getn(tmp) do
         user:SendData(">> "..tmp[1]..": "..tmp[2])
      end
      messages[user.sName] = nil
      savemessages()
   end
end

OpConnected = NewUserConnected

function DataArrival(user, data)
   if strsub(data, 1, 1) == "<" then
      local s, e, cmd, args = strfind(data, "^%b<> %!(%a+)%s?(.*)|$")
      if s then
         cmd = strlower(cmd)
         if cmd == "msg" then
            local s, e, nick, msg = strfind(args, "(%S+)%s?(.*)")
            if s then
               local tmp = GetItemByName(nick)
               if tmp then
                  tmp:SendData(">> "..user.sName..": "..msg)
                  user:SendData(">> "..nick.." is online he/she got your message")
               else
                  messages[nick] = messages[nick] or {}
                  tinsert(messages[nick], { user.sName, msg })
                  user:SendData(">> message saved")
                  savemessages()
               end
            else
               user:SendData(">> syntax: !msg ")
            end; return 1
         end
      end
   end
end

function savemessages()
   local f = openfile("messages.dat", "w+")
   assert(f, "messages.dat")
   write(f, "return {\n")
   for nick, table in messages do
      write(f, "\t"..format("[%q]", nick).." = {\n")
      for i = 1, getn(table) do write(f, "\t\t{ "..format("%q", table[1])..", "..format("%q", table[2]).."},\n") end
      write(f, "\t},\n")
   end write(f, "}") closefile(f)
end--------------------------------------------------------------------------------

how can i change it for :
1 send the offline message  as a pm ?
2 an option to send mm to all users together (user that are online and offline) and that will send the message imidietly the the online user and will store it for the offline users and will post them as sooon as they connects
thanks