Is there a way to detect when a visitor comes back to your page after opening a new window?

Question

Is there a way, using JavaScript or jQuery, to detect when someone goes back to your page after opening a new window or tab?

I want to create a script that opens a new window or tab, and then does something when the user comes back to the page.

Thanks,

Answer 1

You could use cookies, but that's not flawless. If you can use a server-side language, then you can track IP addresses.

Answer 2

yes, there is. Using jQuery:

$(window).bind('focusout', function(){
    console.log('bye bye');
});

$(window).bind('focusin', function(){
    console.log('welcome back!');
});

edit 1

Using alert() was not the best idea there :p Changed to console.log() for demonstration.

edit 2

binding to document does not work crossbrowser, changed to window