Question about the custom rewriter

[johnstob]

I'm going down the path of writing a custom rewriter however I don't
quite understand how this relates to a specific accelerator and the
ichain documentation is not clear.

Do you assign a custom rewriter to a specific accelerator or is this
handled automatically?

If it's handled automatically then how does it distinguish between
different accelerators in the case of text replacement and relative url
paths?

for example:

multi-path homing with two accelerators.
Both back end web servers run different application but require the path
"dns name"/admin/index.htm
Java script is using relative paths on both pages
custom rewriter used for text replacement in javascript within both
index.html pages.

How does the custom rewriter know that for accelerator WEBONE the
multipath is /webone and for accelerator WEBTWO the path is /webtwo to
do the following replacement when the subpath is stripped?

/admin/<<>>/webone/admin/
or
/admin/<<>>/webtwo/admin/

If ichain can't handle this, can Access Manager?

Thanks in advance,
Ben.