[thelist] check for existence of window by name?

Mon Mar 25 11:35:01 CST 2002

Try this in a page:

<HTML>
<HEAD>
<SCRIPT LANGUAGE="JavaScript">
var newWindow;

// Try uncommenting/commenting the following line:
//openNewWindow();

function testWindow()
{
	if (newWindow)
	{
		if (newWindow.closed)
		{
			alert("Not open.  Opening it.");
			openNewWindow();
		}
		else
		{
			alert("It's open!");
		}
	}
	else
	{
		alert("Window was never opened.  Opening it.");
		openNewWindow();
	}
}

function openNewWindow()
{
	newWindow = window.open("http://www.google.com", "myNewWindow");
}

</SCRIPT>
</HEAD>
<BODY>
<P><input type="button" onclick="testWindow()" value="Test" /></P>
</BODY>
</HTML>

-----Original Message-----
From: AtdtXav [mailto:atdtxav at yahoo.com]
Sent: Monday, March 25, 2002 10:27 AM
To: thelist at lists.evolt.org
Subject: RE: [thelist] check for existence of window by name?

Hi Andy, I have to wonder if you work in Farmington Hills, as I worked for
CPWR for three years. ;)

Will window.closed return true or false for a window that was never opened?
if true, that's exactly what I need.  If false, I'm afraid it's square one.
maybe something as simple as "if exist(QT)"?  I'm new to the DOM, I'm
afraid.

Scott

--- "Hardacker, Andrew" <Andrew.Hardacker at Compuware.com> wrote:
> <snip>
> What I'm trying to figure out is whether something like 'if
> window.name == QT' will work... only problem is I think that only
> refers to the current window, and I just want to know if it
> is open at all.
> </snip>
>
> Scott, have you tried checking the window's "closed" property?
>
> if (myWindow.closed)
>   // open a new instance of myWindow
> else
>   // update myWindow
>
> Andy Hardacker

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