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From: FAQ server on 19 Apr 2010 19:00
-----------------------------------------------------------------------
FAQ Topic - How do I check to see if a child window is
open, before opening another?
-----------------------------------------------------------------------

var myWin;
function openWin(aURL) {
if (!myWin || myWin.closed ) {
myWin = window.open(aURL,'myWin');
} else {
myWin.location.href = aURL;
myWin.focus();
}
}

Popup windows cause usability problems and are generally best avoided.

https://developer.mozilla.org/en/DOM:window.open

http://msdn.microsoft.com/en-us/library/ms533574%28VS.85%29.aspx

http://docs.sun.com/source/816-6408-10/window.htm#1201877

http://www.useit.com/alertbox/990530.html


The complete comp.lang.javascript FAQ is at
http://jibbering.com/faq/

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