function split( s, c )
  for item in string.gmatch( s, "(.-)"..c) do
    print(item); 
  end
end


s = "12.12.12.12;122.1111.111.1;";
s2 = "00:00:00-04:00:00;00:00:00-07:00:00;"

split( s, ";" );
split( s2, ":" );