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Editorial Team
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Asked: 2026-05-12T16:35:36+00:00

I made this PHP chatbox which supports some JavaScript code. I have these ‘images’

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I made this PHP chatbox which supports some JavaScript code.

I have these ‘images’ which if you click them make special codes inside the textfield. e.g:

<head>
    <script language="javascript">
    function addCode(code)
    {
        document.writeform.bericht.value+=code;
        document.writeform.bericht.focus();
    }
</head>
<body>
    <a
      href="#"
      onclick="addCode('<a href="http://www.your-link.com">Your-Text</a>');"
    ><img src="img.gif" /></a>
</body>

Which would put the HTML link code into the textfield so the user can edit this easily.

Now I have this popup which needs to do the same thing as before, but because it’s in a new window it needs to talk to the other page (chatbox.php).

How can I do it?

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1 Answer

  1. Editorial Team

    In your all-in-one-page code, document is a property of the global object (global to the window), which is window (e.g., document === window.document). If code on that page opens a new window, within the new window there’s a property called opener you can use to reference the window that opened the new window (opener references the opening window), so:

    opener.document.writeform.bericht.value+=code;
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