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How to make Lines I draw Draggable and Moveable etc??

 
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Hello Sir:
I have following code that can draw lines at my will, but I hope to
[1]. Keep all lines I draw here;
[2]. make them draggable and moveable and deletable,
How can I do that??
see code below

[1]. main code



[ October 30, 2007: Message edited by: Michelle Wang ]
 
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