Load section or keys form [module:lang=<user-lang>] if it exists

This allow language-specific module options

exec/load/modopts.js

-/* modopts.js */
-
-/* $Id: modopts.js,v 1.4 2019/01/11 09:26:34 rswindell Exp $ */
-
 /* Load Synchronet JS Module Control/Enable options from ctrl/modopts.ini */
 /* Parse a single .ini section using the argument (to load) as the section name */
 /* and return an object containing the key=value pairs as properties */
 
-/* To avoid over-writing the parent script's "argc" and "argv" values, 
+/* If the section [module:lang=user-lang] exists in the .ini file,
+   that section (or key value from it) will be returned instead of the [module] section.
+*/
+
+/* To avoid over-writing the parent script's "argc" and "argv" values,
    pass a scope object to load(), like this:
 
    options=load(new Object, "modopts.js", "your_module_name");
@@ -25,13 +25,16 @@ function get_mod_options(modname, optname, default_optval)
 		return undefined;
 	}
 
+	var section = modname + ':lang=' + user.lang;
+	if(!user.lang || ini_file.iniGetSections().indexOf(section) < 0)
+		section = modname;
 	var val;
 	if(optname)	// Get a specific option value (optionally, with default value)
-		val = ini_file.iniGetValue(modname, optname, default_optval);
+		val = ini_file.iniGetValue(section, optname, default_optval);
 	else // Get all options
-		val = ini_file.iniGetObject(modname, /* lowercase */false, /* blanks: */true);
+		val = ini_file.iniGetObject(section, /* lowercase */false, /* blanks: */true);
 	ini_file.close();
 	return val;
 }
 
-get_mod_options(argv[0], argv[1], argv[2]);
\ No newline at end of file
+get_mod_options(argv[0], argv[1], argv[2]);