Javascript POP Up Window

To open a new window by clicking on the link, you will need to use window.open method of javascript.

Simple popup window

<a href="javascript: void(0)" 
   onclick="window.open('popup.html', 
  'windowname1', 
  'width=200, height=77'); 
   return false;">Click here for simple popup window</a>

Now you can open a simple window, also this function can have different features of that window to appear.

Syntax

window.open([URL], [Window Name], [Feature List], [Replace]);

<a href="javascript: void(0)" 
   onclick="window.open('popup.html', 
  'windowname2', 
  'width=200, \
   height=77, \
   directories=no, \
   location=no, \
   menubar=no, \
   resizable=no, \
   scrollbars=1, \
   status=no, \
   toolbar=no'); 
  return false;">Click here for specific popup window</a>

Fullscreen popup window

The fullscreen parameter is supported only by Internet Exploer browser.

If you need to open fullscreen popup window in all browsers you need to use this modified function:

<script type="text/javascript">
<!--
function popup(url) 
{
 params  = 'width='+screen.width;
 params += ', height='+screen.height;
 params += ', top=0, left=0'
 params += ', fullscreen=yes';

 newwin=window.open(url,'windowname4', params);
 if (window.focus) {newwin.focus()}
 return false;
}
// -->
</script>

<a href="javascript: void(0)" 

Centered popup window

To open new popup window in the middle of the screen we should know the size of a window and resolution of the screen. On the basis of these data, we will calculate values for the top-left corner.

<script type="text/javascript">
<!--
function popup(url) 
{
 var width  = 300;
 var height = 200;
 var left   = (screen.width  - width)/2;
 var top    = (screen.height - height)/2;
 var params = 'width='+width+', height='+height;
 params += ', top='+top+', left='+left;
 params += ', directories=no';
 params += ', location=no';
 params += ', menubar=no';
 params += ', resizable=no';
 params += ', scrollbars=no';
 params += ', status=no';
 params += ', toolbar=no';
 newwin=window.open(url,'windowname5', params);
 if (window.focus) {newwin.focus()}
 return false;
}
// -->
</script>

<a href="javascript: void(0)" 
   onclick="popup('popup.html')">Centered popup window</a>

   onclick="popup('popup.html')">Fullscreen popup window</a>