Multiple Windows using window.open()

window.open(url, '', 'width=1000, height=500')

then, you get new popup every time to click popupbutton.


Check this this might help you to open new window every time.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery demo</title>
  <script src="jquery-1.9.1.js"></script>
</head>
<body>

<script>
$(document).on("click", "#btn", function(event) {
    window.open("http://www.google.com", '_blank');
});

</script>
<input type=button name="btn" id="btn">
</body>
</html>

Give each window a new window name.

window.open(url, WindowName)

try this,it will create new child, fiddle

var randomnumber = Math.floor((Math.random()*100)+1); 
 window.open(yoururl,"_blank",'PopUp',randomnumber,'scrollbars=1,menubar=0,resizable=1,width=850,height=500');