[dwm] auto-raise window patch?

Hi,
these days I use the floating mode a lot more than tiling mode, and I
miss the auto-raise feature (yes, using the mouse to select the window
without MOD-clicking it)

I played a little with focus and other code I've found in the list
archive, but no luck.

Does anyone have such a patch? Some hint to help me write it myself?

-- 
Julián