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how to close child window when parent page is redirect

Apr 8th, 2008 17:59
ha mo, Keyar Srinivasan, John Cherian, http://keyarsrinivasan.blogspot.com

The dependent window feature specifies whether the window should be a 
dependent child of the current (opener) window. A dependent window 
closes when its parent window closes. This dependent feature is only 
supported by Navigator 4 and above. However, we can use a bit of 
JavaScript to deliver a cross-browser solution. Let's use the following 
function to open our dependent window: 
function openDep() {
  win = window.open("depwin.html", "dep", "height=200,width=400");
We'll include an onUnload event handler to close the dependent window 
when the current window closes or a new URL is loaded:
<BODY onUnload="closeDep()">
Note that the new window will close when the current document unloads, 
even if the current window is still open. Here's the code for the 
closeDep() function:
function closeDep() {
  if (win && win.open && !win.closed) win.close();
Notice that we must check if the window exists 
Notice that we must check if the window exists before we attempt to 
close it. To learn more, have a look at a complete demonstration in