Two DocumentRoots?

Is it possible to set up Apache so that it essentially has two DocumentRoots? So that, say, http://mysever/blah/ serves out of one dir, and http://mysever/foobar/ out of another?



If it helps: I've already installed the LiveJournal thingie, and it's serving files out of /c/lj/htdocs. Now I want to also run the MediaWiki software within the same installation of Apache. Naturally, I don't want to install it inside /c/lj, so I installed it in /c/mw. So is it possible to tell it that if the user requests something that begins with http://myserver/mw/, it should serve files out of /c/mw?



Thanks in advance.