You can't navigate upside of the document
webroot on clientside.
It's an security feature, which is enabled on
Apache Webserver by default.
It shouldn't be possible to access content of
/etc/passwd (file with user password
hashes on UNIX systems) by entering
../../../etc/passwd in the address
bar, for example.
files in another directory.
Alternatively you can try to set the
/www and the
./www/home.html. Then it is possible
to navigate upside the directory index.