Iframes content Access

Is it possible to use Javascript on t adocument that is normally laoded into
an Iframe to prevent it from being accesed and loaded without the shell of
the Iframe that includes headerfm navigation, and footers.

I know this is possible to do with Javascript and the content of a standard
FRAME..

But is there a way to do this woth the content of an Iframe?

I have many content pages for an Iframe. But in addition to being able to
link to the main Iframe document, I desire to link to each specific topic
and have that topic display in the main Iframe shell. Since this is possible
with JS and regular FRAMES, I am hoping it is possible with JS and Iframes
too.


Is it possible?

If so, does anyone have a coding example?