how to freeze web player?

HI, we are developing a big web project with unity.

We need to load external html pages with unity inside.

We open them with javascript (window.open or other ajax tricks), but when the browser opens the popup with the second unity object, the main webplayer remains loaded in memory and hogs the cpu beacuse it's still running.

we cannot destroy the main windows, because we lost all network connections.

what can we do to "freeze" the state of the main webplayer? (we need to keep player position and connection to the main server)


thanks.