How do I open a window on a different screen?

I have an IE7 app that needs to open a popup window onto a second screen. I'm fudging this at the moment by extending the desktop and explicitly opening the window at an offset that makes it appear over on the other one. However this seems like a hack and I'd like to be able to explicitly set the window 开发者_高级运维screen when I call window.open(). Is there any way to do this?

I'm pretty sure this isn't possible. I did some testing and the pop-up windows seemed to be restricted to the monitor "with focus".

Demo: jsfiddle.net/Marcel/25W29