Gui4DVDauthor and default subtitle

[lennu]

I have a little problem again. I'm making a very simple DVD project with one movie, audio and subtitle stream. I've also have created basic menu with three buttons: "Watch movie", "Subtitle 1" and "No subtitle". What i want is that "Subtitle 1" will be activated when user press "Watch movie" button (or "Subtitle 1" button), but not activated when user press "No subtitle" button. When i checked autostart box in subtitle options "Subtitle 1" is always shown...even when user chooses not to activate subtitles ("No subtitle" button).

Here is dvdauthor xml file:

<?xml version="1.0" encoding="utf-8"?>
<dvdauthor dest="d:\DVD\DVD">
<vmgm>
    <menus>
       
    <video format="ntsc"></video>
      <pgc entry="title">
       <pre> { if (g1 eq 0) g1=1; button=g1*1024; } </pre>
        <vob file="d:\DVD\Temp\MMMenu.mpg" pause="0"/>
        <button name="MMB1">jump titleset 1 menu;</button>
        <post>jump titleset 1 menu;</post>
      </pgc>
    </menus>
</vmgm>
<titleset>
    <menus>
       
    <video format="ntsc"></video>
      <pgc entry="root">
        <pre> { subtitle=64; button=1024; } </pre>
        <vob file="d:\DVD\Temp\TS1Menu.mpg" pause="inf"/>
        <button name="TS1B1">if (g1 eq 0) {subtitle=64;resume;} else {subtitle=64;jump menu 1;}</button>
        <button name="TS1B2">if (g1 eq 0) {subtitle=0;resume;} else {subtitle=0;jump menu 1;}</button>
        <button name="TS1B0">jump title 1 chapter 1;</button>
      </pgc>
    </menus>
    <titles>
      <audio lang="EN" />
      <subpicture lang="ET" />
      <pgc>
       <pre> { g1=0; } </pre>
        <vob file="d:\DVD\Temp\VTS_01_PGC_01_1 - 0xE0 - Video - MPEG-2 - 720x480 (NTSC) - 16~9 - Letterboxed_SUB1.mpg" chapters="00:00:00.000,some skipped,03:08:42.000"/>
        <post>call menu;</post>
      </pgc>
    </titles>
  </titleset>
</dvdauthor>

[borax]

Two tips:

1. Is seems to be better to set subtitle=62 to 'really' switch subs off.
2. I would use only 2 buttons on the titlesetmenu:
- Watch movie with subtitles
- Watch movie without subtitles

The corresponding actions would be:
Watch movie with subtitles: subtitle=64; jump title 1 chapter 1;
Watch movie without subtitles: subtitle=62; jump title 1 chapter 1;

The problems is probably, that the action: 'if (g1 eq 0) {subtitle=64;resume;} else {subtitle=64;jump menu 1;}' should be used only for a dedicated subtitle menu, not for a 'normal' titlesetmenu.