[TYPO3] treeLevel problem/question

[Bartosz Aninowski]

Hi
I have problem with disapearing menu
Look at attached TS ## Menu [Begin]
When I view my website I see top menu and left "directory" menu. I can 
browser thru every level of my left men but when I click "homepage" left 
menu disapear.
I've tried lot of configuration of treeLevel but it dosn't help.

I've also done some test to see on what level I am.
[treeLevel = 0]
lib.mainMenu = TEXT
lib.mainMenu.value = level0
[global]
when I clear cache and view website index.php?id=1 I see "level0" but when I 
hit some page from topMenu fg "About us" and then back to homepage I dont 
see "level0"
Dont ask me why but I've changed above ts in this way
[treeLevel = -1,0]
lib.mainMenu = TEXT
lib.mainMenu.value = level0
[global]
and now when I hit subpage and than homepage I see level0
>From doc " Level = 0 is the "root" of a website. Level=1 is the first 
menuen", is number -1 possible or I misunderstood doc?

This is how my menu looks in BE

[] Title of CMS
|--Homepage
|----Products [not in menu]## directory value=47 Menu [Begin]
|------Product A
|------Product B
|--------Product B1
|--------Product B2
|------Product C
|----Sys folder with topMenu ## topMenu directory
|------About us



## Menu [Begin]
lib.mainMenu = HMENU
[treeLevel = 0]
lib.mainMenu.entryLevel = 0
[else]
lib.mainMenu.entryLevel = 1
[global]
lib.mainMenu.special = directory
lib.mainMenu.special.value = 47
lib.mainMenu.wrap = |
lib.mainMenu.1 = TMENU
lib.mainMenu.1.expAll = 1
lib.mainMenu.1 {
NO {
 allWrap = <div class="level1"><div class="link">|</div></div>
}

ACTIFSUB<.NO
ACTIFSUB=1
IFSUB=1
IFSUB<.NO

}

lib.mainMenu.2 = TMENU
#lib.mainMenu.2.expAll = 1
lib.mainMenu.2 {
NO {
 allWrap = <div class="level2"><div class="link">|</div></div>
}
ACTIFSUB<.NO
ACTIFSUB=1
IFSUB=1
IFSUB<.NO
}



lib.mainMenu.3 = TMENU
lib.mainMenu.3 {
NO {
 allWrap = <div class="level3"><div class="link">|</div></div>
}

ACTIFSUB<.NO
ACTIFSUB=1
IFSUB=1
IFSUB<.NO
}