[xmonad] Multi-display layout help

Hi, I have two monitors and I'd like to configure Xmonad so that if I switch to a workspace and it's on a different monitor from the one with the currently focused window, the workspace gets pulled to that monitor, BUT when I leave that workspace it should return to the monitor it was pulled from. Is there a layout that already handles this? -- Cheers, Mark Watts Department of Computer Science University of Texas at Austin