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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
0
Rocking
Asked:
Rocking
2 Solutions
 
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'); 
} 

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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()
}

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0
 
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" />

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0
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