var aerotow_dialog = gui.Dialog.new("sim/gui/dialogs/SG38/aerotow/dialog", 
                                    "Aircraft/SG38/Dialogs/aerotow.xml");
var winch_dialog = gui.Dialog.new("sim/gui/dialogs/SG38/winch/dialog", 
                                    "Aircraft/SG38/Dialogs/winch.xml");
var groundservice_dialog = gui.Dialog.new("sim/gui/dialogs/SG38/groundservice/dialog", 
                                    "Aircraft/SG38/Dialogs/groundservice.xml");
var options_dialog = gui.Dialog.new("sim/gui/dialogs/SG38/options/dialog", 
                                    "Aircraft/SG38/Dialogs/options.xml");

