I'm trying to create and pass around an object which will contain the
names and handles of all windows (main and pop-up) which are active.
Part of the code to use this hasn't been written yet, but what I have is
working on NetScape, but giving me errors in IE.  Can anyone tell me
what I'm doing wrong?

Here is the code (text excises) from the initial page:

<script><!--

self.window.name = "Main";
var WindowList = {"Main":self};

        //-->

In subsequent pages the following is used to load a .js file:

</script><!--

<SCRIPT SRC="showi.js">
        </SCRIPT>

        //-->

which contains:

var BitsAcross = screen.width - 20;
var BitsDown = screen.height - 60;
if (typeof(WindowList) != 'undefined')
                {var WindowList = parent.WindowList}

function showimage(filename, windowname, x, y)
        {var Scroll = 0;
         if (x > BitsAcross)
                {var Scroll = 1;
                 x = BitsAcross};
         if (y > BitsDown)
                {var Scroll = 1;
                 y = BitsDown};
         var options =
"toolbar=0,location=0,directories=0,status=0,menubar=0,resizable=1,scrollbars="
                 + Scroll + ",width=" + x + ",height=" + y +
",screenX=0,screenY=0,left=0,top=0";
         var n = navigator.appName;
         if (n == "Netscape")
                {WindowList[windowname]=window.open(filename, windowname, options)}
           else {var WindowToUse = WindowList[windowname];
                 if (typeof(WindowToUse) != 'undefined' && !WindowToUse.closed)
                        {WindowToUse.resizeTo(x, y)};
                 WindowList[windowname]=window.open(filename, windowname, options)}

The "if" on WindowList is to keep from trying to get to the parent of a
"Main" window.  When the showimage function is called I am told that
WindowList is not defined.

What am I missing here?  It seems straight forward, even if I seem to
need the resizeTo in IE, when it isn't required in Netscape.

Cyril N. Alberga

This is a restatement of the problem, after I got over a number of
misunderstandings about the scope and persistance of variables in
JScript/JavaScript, as well as the meaning of the parent property
(wrong! I needed caller -- I think --).

I'm trying to maintain a list of the names (in the sense of tragets) of
all extant windows, associated with the handles of the windows.  The
reason is probably irrelivant, but if it would help I can expand this --
just SOMEBODY give me at least a hint.

Note that this is for an off-line presentation, coded in HTML and JS,
for (I had hoped) usablility on various platforms.

My current code is:

In the initial page:

<script><!--

self.window.name = "Main";
self.window.WindowList = {Main:self}

        //-->

in a .js file which is loaded by all other pages, including various
pop-ups:

var BitsAcross = screen.width - 20;
var BitsDown = screen.height - 60;
if (self.window.opener !== null)
                {self.window.WindowList = opener.window.WindowList}

function showimage(filename, windowname, x, y)
        {var Scroll = 0;
         if (x > BitsAcross)
                {var Scroll = 1;
                 x = BitsAcross};
         if (y > BitsDown)
                {var Scroll = 1;
                 y = BitsDown};
         var options =
"toolbar=0,location=0,directories=0,status=0,menubar=0,resizable=1,scrollbars="
                 + Scroll + ",width=" + x + ",height=" + y +
"screenX=0,screenY=0,left=0,top=0";
         var n = navigator.appName;
         if (n == "Netscape")
                {self.window.WindowList[windowname]=window.open(filename, windowname,
options)}
           else {var WindowToUse = self.window.WindowList[windowname];
                 if (typeof(WindowToUse) != 'undefined' && !WindowToUse.closed)
                        {WindowToUse.resizeTo(x, y)};
                 self.window.WindowList[windowname]=window.open(filename, windowname,
options)}

I am currently debugging (trying to, at least) in Netscape, mainly
because I haven't found the I.E. equivalent to the Netscape de{*filter*}'s
inspector (can anyone point me to that?).

I have found that, even though the property WindowList gets initialized
in the home page that once I link (by a HTML link, not by the open
method) to another page it seems to vanish, eventhough it is still the
same window.

So, isn't there SOME place where I can hold onto a truly global value?

Cyril N. Alberga

Hi,

Take a look at http://www.*-*-*.com/ {*filter*}/

This is because once you navigate away from a page, its object model goes
away with it. Any data you stash in the 'window' object is bound to a
specific page, rather than to an instance of Internet Explorer. To do
otherwise would almost certainly present a security problem.

Peter

--
Peter J. Torr - Microsoft Windows Script Program Manager

Please do not e-mail me with questions - post them to this
newsgroup instead. Thankyou!

OK, but then how CAN I check to see if a pop-up I want to use is open or
not?  The problem is that for some reason the simple "open" method which
works in NN doesn't resize the pop-up window if it is already open with
another image.  I had code which did a dummy open, then a close, and
finally the real open, but this looked awful, the dummy flashed a blank
window which then was replaced by the correct one.  I put a warning in
my introductory material (this is all for an off-line presentation which
I had hoped people could view with whatever browser they had) that IE
gave bad results, but I wanted to be able to drop the warning.

So -- should I just put up a big sign saying LOOKS BEST IN NETSCAPE?

I don't understand this language, I'm afraid.  I've tried leaving a
single root window holding the object, but I haven't figured out how to
access and update it from the children windows.  I have tried passing
the object around, hoping that it could be shared, but that doesn't seem
to work either.  I guess I'm spoiled by having been a LISP programer.

HELP!!!!!

Cyril