<s>
JavaScript	B-Application
Style	I-Application
Sheets	I-Application
(	O
JSSS	B-Application
)	O
was	O
a	O
stylesheet	B-Language
language	I-Language
technology	O
proposed	O
by	O
Netscape	B-Protocol
Communications	I-Protocol
in	O
1996	O
to	O
provide	O
facilities	O
for	O
defining	O
the	O
presentation	O
of	O
webpages	O
.	O
</s>
<s>
It	O
was	O
an	O
alternative	O
to	O
the	O
Cascading	B-Language
Style	I-Language
Sheets	I-Language
(	O
CSS	B-Language
)	O
technology	O
.	O
</s>
<s>
Although	O
Netscape	B-Protocol
submitted	O
it	O
to	O
the	O
World	O
Wide	O
Web	O
Consortium	O
(	O
W3C	O
)	O
,	O
the	O
technology	O
was	O
never	O
accepted	O
as	O
a	O
formal	O
standard	O
and	O
it	O
never	O
gained	O
acceptance	O
in	O
the	O
web	B-Application
browser	I-Application
market	O
.	O
</s>
<s>
Only	O
Netscape	B-Protocol
Communicator	I-Protocol
4	O
implemented	O
JSSS	B-Application
,	O
with	O
rival	O
Internet	B-Application
Explorer	I-Application
choosing	O
not	O
to	O
implement	O
the	O
technology	O
.	O
</s>
<s>
Soon	O
after	O
Netscape	B-Protocol
Communicator	I-Protocol
's	O
release	O
in	O
1997	O
,	O
Netscape	B-Protocol
stopped	O
promoting	O
JSSS	B-Application
,	O
instead	O
focusing	O
on	O
the	O
rival	O
CSS	B-Language
standard	O
,	O
which	O
was	O
also	O
supported	O
by	O
Internet	B-Application
Explorer	I-Application
and	O
had	O
a	O
much	O
wider	O
industry	O
acceptance	O
.	O
</s>
<s>
The	O
follow-up	O
to	O
Netscape	B-Protocol
Communicator	I-Protocol
,	O
Netscape	B-Protocol
6	I-Protocol
(	O
released	O
in	O
2000	O
)	O
,	O
dropped	O
support	O
for	O
JSSS	B-Application
.	O
</s>
<s>
Using	O
JavaScript	B-Language
code	O
as	O
a	O
stylesheet	O
,	O
JSSS	B-Application
styles	O
individual	O
element	O
by	O
modifying	O
properties	O
of	O
a	O
document.tags	O
object	O
.	O
</s>
<s>
For	O
example	O
,	O
the	O
CSS	B-Language
:	O
</s>
<s>
is	O
equivalent	O
to	O
the	O
JSSS	B-Application
:	O
</s>
<s>
JSSS	B-Application
element	O
names	O
are	O
case	O
sensitive	O
.	O
</s>
<s>
JSSS	B-Application
lacks	O
the	O
various	O
CSS	B-Language
selector	O
features	O
,	O
supporting	O
only	O
simple	O
tag	O
name	O
,	O
class	O
and	O
id	O
selectors	O
.	O
</s>
<s>
(	O
In	O
practice	O
,	O
however	O
,	O
this	O
can	O
be	O
achieved	O
using	O
JavaScript	B-Language
to	O
modify	O
the	O
stylesheets	O
applicable	O
to	O
the	O
document	O
at	O
runtime	O
.	O
)	O
</s>
<s>
Because	O
of	O
this	O
JSSS	B-Application
was	O
often	O
used	O
in	O
the	O
creation	O
of	O
dynamic	O
web	O
pages	O
.	O
</s>
<s>
Similar	O
to	O
Cascading	B-Language
Style	I-Language
Sheets	I-Language
,	O
JSSS	B-Application
could	O
be	O
used	O
in	O
a	O
tag	O
.	O
</s>
<s>
Javascript	B-Application
Style	I-Application
Sheets	I-Application
were	O
only	O
supported	O
by	O
Netscape	O
4.x	O
(	O
4.0	O
–	O
4.8	O
)	O
but	O
no	O
later	O
versions	O
.	O
</s>
<s>
No	O
other	O
web	B-Application
browser	I-Application
has	O
ever	O
integrated	O
JSSS	B-Application
.	O
</s>
