Issue 32: onMouseDown doesn't agree with event.button, only onMouseMove
Status:  New
Owner: ----
Reported by teominator, Jun 6, 2008
event.button should also work with onMouseDown, if for example we would
like middle-click features.

A sample gadget which uses event.button with onMouseMove (can easily be
changed to onMouseDown) is here:
http://teodorfilimon.com/files/event.button-sample-gadget.gg