http://jerome.le.chat.free.fr

. copy the script in the Blender scripts directory,
. update script menu or restart Blender,
. execute it just once :

. the script is loaded and linked to the current frame :

. If it hasn't work (not tested on mac or linux), check if the script is in the text editor or load it, then link it as shown in the image above.
. done. you can change some values in the script itself if you need to.