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Editorial Team
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Asked: 2026-06-15T19:18:33+00:00

Back in 2009, there was a cool demo called Browser Ball . The point

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Back in 2009, there was a cool demo called Browser Ball.

The point of the demo was that the page opened several new overlapping browser windows and displayed a bouncing ball, that was smoothly transitioning between the windows as it was bouncing. Therefore the page had to be able to somehow

  1. get information about the configuration of the browser windows on viewer’s desktop
  2. communicate between the windows

Sadly, the site where it was hosted now seems to be down. Does anybody know how it worked? How the communication between windows was done?

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1 Answer

  1. Editorial Team

    Communication between windows can be managed through window.opener.

    The position of browser window can be determined using:

    • window.screenLeft and window.screenRight in IE
    • window.screenX and window.screenY in everything else.

    For more information on browser window position in JS see:

    http://www.w3schools.com/jsref/prop_win_screenx.asp

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