How to identify whether the pop up windows are blocked in the browser through javascript?

Hi,

How to identify whether the pop up windows are blocked in the browser through javascript?
Is there any javascript available to identify?

I just need to provide alert to user to enable pop up in case if it is blocked
RockingAsked:
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.

GaryCommented:
You need to open a popup and check for its existence

var mypopup= window.open('/mypopup.php', 'mypopupname');
if (mypopup== null || typeof(mypopup)=='undefined') { 	
	alert('Please disable your pop-up blocker'); 
} 

Open in new window

Of course you could do a quick open and close (if it exists) e.g.
var mypopup= window.open('/mypopup.php', 'mypopupname');
if (mypopup== null || typeof(mypopup)=='undefined') { 	
	alert('Please disable your pop-up blocker'); 
}
else{
	mypopup.close()
}

Open in new window

Matthew KellyCommented:
So a simple way is to change the part of the code that would execute the pop up, put it into a variable and check to see if it is null or undefined. Note that this method doesn't work if you want to try to detect if they have pop up blocking on prior to a click that would open the pop up. This is because every browser is different and pop up blocking is a browser setting,  not an html setting.

<script type="text/javascript">
function buttonClicked() {
  var targetWin= window.open("popup.php");

  if(targetWin==null || typeof(targetWin)=='undefined')
  { 
    alert('Pop ups are required for parts of this application to work. Please Turn off your Pop Up blocker');
  }
}
</script>

<input type="button" onclick="buttonClicked();" value="Click For Pop Up" />

Open in new window

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
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
JavaScript

From novice to tech pro — start learning today.