[away3d] face selection help?

[slicer4ever]

i'm trying to do mouse face selection, and the only thing on it i can
find is: http://savagelook.com/demos/face_picking/srcview/index.html
which seems to be outdated, as i don't see drawTriangles is an
included class with away3D anylonger, any suggestions on a workaround?