Cannot get TS condition working?

Hello,
I just build a new website based on the Introduction Package available on typo3.org.
I would like to implement some new stuff and I need to add some condition (am I on the homepage, language used, etc.). Unfortunately for ALL the condition I tried to insert, nothing is handled as expected (seems the [else] block is always used.

I think I'm doing something very basic but certainly also a systmatic error because when I just tried to add a condition in the page_configuration as follow, system does NOT take care of the condition:

# Make the PAGE object
page = PAGE
page {
# Regular pages always have typeNum = 0
typeNum = 0

1 = TEXT
1{
[system = win]
value = Win
[else]
value = Mac
[end]
}

...

When a load one webpage either on Win or Mac the text Mac is displayed at the top of the page...
Is there a config to change in order to get conditions handled or what basic stuff is wrong in the code above?

Thank you in advance for your help.
Ben

You cannot use conditions inside of curly braces. Instead you'd have to write it like this:

1 = TEXT
[system = win]
1.value = Win
[else]
1.value = Mac
[end]

Great thanks for your help.
Now it works fine.

igorshmigor schrieb

You cannot use conditions inside of curly braces. Instead you'd have to write it like this:

1 = TEXT
[system = win]
1.value = Win
[else]
1.value = Mac
[end]