Q1107 How can the 'BACK' button of the browser change both the frames in the frameset?

Load both the current frames with the link that brought you there by loading a new frameset.

Or have the last frame loaded look to see if the other frame contains a matching page:

<body onLoad="if (top.otherframe.location.href.indexOf('matchingpage.html') ==-1) top.otherframe.location='matchingpage.html'">

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