Thank you for the suggestions. I should have mentioned that the use case I have
requires that the marker icon be dragged out of the map area and onto another
area. I my case another frame.
I did some more research and found that to get the marker icon to go along
with the mouse one can use the following within ondragstart()
event.dataTransfer.setDragImage(markerIcon, 0, 0);
The marker icon is the real DOM element (img). I tested on Firefox and Chrome.
For Chrome the following must also be done
$(markerIcon).css("-webkit-user-drag", "element");
Thank you again.