XML - XSLT own application

[Varun Mehta <varun@verchaska.com>]

Is there some documentation I could find, as to how is an XSLT applied
to an XML.

WITHOUT USING tools like cocoon etc.

How do browsers handle it, how do other tools handle it...

Consider I have to make my own implementation of the same, who would I
go about it. Some guidelines...

I'm not sure if my question is clear...

Thanks in advance.
-- 

Regards,
Varun Mehta