Is there a reliable way to determine if a browser tab or window is inactive or not in focus?

Question

I\'ve got a javascript timer that is making XMLHTTP requests on a constant basis (once every 10 seconds). I\'d love to be able to pause the timer when the window or tab los

Answer 1

The above code is working fine in Safari v3.0.4 (WebKit 530+), the bug has been resolved it seems. I've checked it in Google Chrome v3.0.195.27 and it has the same Safari bug, although it has a newer version of WebKit.