arrow keys in an embedded flash game

Howdy -

I've got a little Flash game that sits in a large html page - large
enough to require scrollbars. The game uses the Arrow keys to control
a vehicle but the up and down arrows end up scrolling the whole page
in addition to moving the vehicle around. How do I fix that? I somehow
didn't set the Flash game to take or retain focus.

thank 'ee,
omni