Howto modify Sandcastle presentation style without changing the default installation files

Question

My project uses Sandcastle and Sandcastle Help File Builder to generate documentation.

We're using a customized version of script_manifold.js that persists the user's language preference across pages (the default version resets the language preference with each page).

Currently, the script is located in the Sandcastle\presentation\VS2005\scripts folder.

Is there a way to override this script with a custom version, without having to mess with the Sandcastle installation? That is, can I have a file that is checked into source control along with my source code, and somehow have that file used by SHFB instead of the default Sandcastle one?