Making Lepoards help window go behind other windows

On of the things that really bug me with Leopard, is that the help window always stays on top of other windows. I found this tip (and I should have written down where I found it) that allow other windows to go on top of the help window. 

If you type the following command in a terminal window

  defaults write com.apple.helpviewer NormalWindow -bool true

the help window should fall behind other windows. You will have to click on the window to get it back to the front. In my world, this is so much better. 

If you would like to have the old behavior back (the help window always on top) just use the same command, but change "true" at the end to "false".