grabbing an SVG?

[Richmond Mathewson]

If I import an image into a stack and give it this script:

on mouseDown
   grab me
end mouseDown

it works superbly: I can grab the image with my mouse and take it for a 
walk round the stack,
and when I release the mouse button I drop the image.

If I do that with an SVG widget things don't behave in the same way at 
all, at all.

Richmond.