-require "luci.dispatcher"
-require "nixio.fs"
-require "luci.sys"
-require "luci.tools.webadmin"
-require "luci.cbi.datatypes"
-require "luci.tools.ddns" -- ddns multiused functions
-
--- takeover arguments
+local NX = require "nixio"
+local FS = require "nixio.fs"
+local SYS = require "luci.sys"
+local UTIL = require "luci.util"
+local DISP = require "luci.dispatcher"
+local WADM = require "luci.tools.webadmin"
+local DTYP = require "luci.cbi.datatypes"
+local DDNS = require "luci.tools.ddns" -- ddns multiused functions
+
+-- takeover arguments -- #######################################################