Popup

Hello.
Is it possible to maintain an instance of a popup window on a memory and reclaim it later if I refresh the generator window?

Because if I do this:

var newW = window.open ( "anotherpage.html", "myPopup" );

Code (markup):

I will maintain the linkage between generator and popup only wile the generator exists.

 

where will we put these codes?

 

Ok.
But I can do this on FireFox:

if ( !navigator.newW ) 
    navigator.newW = window.open ( "mycontent.html", "myPopup" );

Code (markup):

And it works very well. It maintains the reference even i refresh the generator. But it doesn't work on the other browsers.