using xsl stylsheets in sunrise

[CoolPaul]

okay, i'am a newbie in all these xsl stuff.
i want to great a stylesheet for sunrise which removes all the navigations and thinks i don't need and just leaves an article text and the related pictures.
there relevant things are enclosed by special phrases in the html file.

so is there a way to do sth like 'take only part of the html file between keyword ABC and keyword XYZ'? is that possible using stylesheets??

thanks!