Detect whether window is active. cross-browser

Is there a way to detect if my browser page is the active page (as opposed to just a tab that the user has hasn't clicked on yet in their tabbed browsing activity). I want to turn off certain page monitoring if this is the case, but don't know how to detect for it.
metalaureateAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

HainKurtSr. System AnalystCommented:
you can try this

<script>
function msg(){alert("focused...")}
</script>

<body onFocus="msg()">
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
tdlewisCommented:
You really don't want to do that particular test! It will put your browser into an endless loop of showing the alert box.

You could use the snippet below and test hadFocus anywhere you want to know if the page had ever been displayed.
<script>
var hadFocus = false
</script>

...

<body onfocus="hadFocus=true">

Open in new window

0
metalaureateAuthor Commented:
http://www.w3schools.com/jsref/event_onfocus.asp

Body does not take the onfocus event. I need something else...
0
The Ultimate Tool Kit for Technolgy Solution Provi

Broken down into practical pointers and step-by-step instructions, the IT Service Excellence Tool Kit delivers expert advice for technology solution providers. Get your free copy for valuable how-to assets including sample agreements, checklists, flowcharts, and more!

metalaureateAuthor Commented:
window.onfocus maybe?
0
tdlewisCommented:
I have tested body.onfocus in both Firefox 3.6 and Internet Explorer 6 and 8.
0
metalaureateAuthor Commented:
I'm FF 3.6.2 and I could not get it to work programmatically... however everything works fine if I use window.onfocus.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Web Languages and Standards

From novice to tech pro — start learning today.