How to make graphics in Applet not to repaint after I click "refresh"

Hi, pals
I have some interactive graphics inside an Applet. User can drag and
move the graphic objects. The problem is when user click "Refresh"
button of the web browser, those objects return to their original
positions. What I hope is to make those objects still lie on the new
position that user has moved them to after they click "refresh" or
"back" and "forward" button to return to the applet page.
do I need to write some thread control?
Think when you type new URL in the browser showing the applet and go to the new web page. The system will call
Applet.stop() and destory() to destroy the applet resource used by the
Applet webpage. When you go back to the applet page, the system will
call Applet.init() and start() to recreate it. All previous object
positions and states manipulated by user will return to original.
For example, there's a circle centered at (50,50), you move it to
center (100,100). Then you go to another webpage in the same web
browser frame. When you use "Back" button to return to the Applet, the
circle will be redraw at center (50,50). (why? because the browser call applet.init() and do all process as first time the applet download to your computer) What I hope is the circle still keeps
at its last center (100,100) . This seems impossible to me
since the applet has lost its memory about the center position
(100,100) last time when you go to another page and the system call
destory() to delete the applet.
Any suggestion?

I think you can disable page refreshing with javascript, but how, I do not know.
I wish this is helpfull.
Ahmad Elsafty

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