Auto adjustment (expand or collapse) of sub-buttons when clicked on the main button

programming flash
1

Hi,

I have the following buttons and some sub buttons (Main buttons are in [COLOR=#0000ff]**Blue **[/COLOR]&[COLOR=#0000ff][/COLOR] Sub buttons are in [COLOR=#a52a2a]**Brown **[/COLOR]Color).[COLOR=#0000ff][/COLOR]

[COLOR=#0000ff]Home[/COLOR]
[COLOR=#0000ff]Schedule[/COLOR]
----[COLOR=#a52a2a]Level-1[/COLOR] [COLOR=#a52a2a]Schedule[/COLOR] <Sub button of Schedule>
----[COLOR=#a52a2a]Level-2 **Schedule **[/COLOR]<Sub button of Schedule>
----[COLOR=#a52a2a]Level-3[/COLOR] [COLOR=#a52a2a]Schedule[/COLOR] <Sub button of Schedule>
[COLOR=#0000ff]EHSS
[/COLOR]----[COLOR=#a52a2a]**Environment **[/COLOR] <Sub button of EHSS>
----[COLOR=#a52a2a]**Health **[/COLOR]<Sub button of EHSS>
----[COLOR=#a52a2a]**Safety **[/COLOR] <Sub button of EHSS>
----[COLOR=#a52a2a]Security[/COLOR]<Sub button of EHSS>
**[COLOR=#0000FF]Contacts

[/COLOR]**Now the problem is, to make all the buttons auto adjustable when the button which has SUB Buttons clicked.
[COLOR=#0000FF][/COLOR]
What I mean is, First all the buttons on stage will be viewable as the following:
[COLOR=#0000FF]Home[/COLOR]
[COLOR=#0000FF]Schedule[/COLOR]
**[COLOR=#0000FF]EHSS
[/COLOR]****[COLOR=#0000FF]Contacts

[/COLOR]But when I click on [COLOR=#0000FF][/COLOR][COLOR=#ff0000]Schedule[/COLOR], it should expand like the following:[COLOR=#0000FF]
[/COLOR]**[COLOR=#0000FF]Home[/COLOR]
[COLOR=#0000FF]Schedule[/COLOR]
----[COLOR=#A52A2A]Level-1[/COLOR] [COLOR=#A52A2A]Schedule[/COLOR]
----[COLOR=#A52A2A]Level-2 Schedule[/COLOR]
----[COLOR=#A52A2A]Level-3[/COLOR] [COLOR=#A52A2A]Schedule[/COLOR]
**[COLOR=#0000FF]EHSS
[/COLOR]****[COLOR=#0000FF]Contacts
[/COLOR]**When I click on [COLOR=#0000FF][/COLOR][COLOR=#FF0000]EHSS[/COLOR], it should expand like the following:
[COLOR=#0000FF]Home[/COLOR]
[COLOR=#0000FF]Schedule[/COLOR]
[COLOR=#0000FF]EHSS
[/COLOR]----[COLOR=#a52a2a]**Environment **[/COLOR]
----[COLOR=#a52a2a]Health[/COLOR]
----[COLOR=#a52a2a]Safety[/COLOR]
----[COLOR=#a52a2a]Security[/COLOR]
**[COLOR=#0000FF]Contacts

[/COLOR]**How it can be done using AS3. I have made my own buttons of size (200 x 20).
[COLOR=#0000FF][/COLOR]
Please help me with the as3 code to auto adjust to expand or collapse according to the button clicked.

Thanks.