[Greasemonkey] XPath Resources

[Brendan J]

Hi guys,

I'm looking for some good resources on using the sleek & sexy XPath stuff in
JS on GM.  I've seen alot of scripts use it, and I have seen that it uses
some kind of wacky regular expression system to find items in the DOM tree.
But most of the references I have found online are for using it on XML, so
I'm looking for references that use it in relation to HTML.  I would like to
know how to use it efficiently and I'm having a hard time learning about
it.  Anyone have any good places they look when they need some reference for
it?

Thanks,

Brendan JCM