Hi Kiran,

If you are already using the code from http://mindfusion.eu/Forum/YaBB.pl?num=1382213241 to show node icons while dragging, you could draw a stop icon image in the canvas' context instead of the node's image when you detect that the pointer is not over the diagram. You can find out if the diagram contains the pointer location by checking if e.target refers to the diagram's canvas element at the time when onMouseMove is called. Or if not using a canvas icon, just change document.style.cursor from onMouseMove depending on where the mouse pointer is located.

I hope that helps,
Stoyan