Adding javascript to window.

Is there a way to add text to a window I open? For example, when I do:

[code=php]
theWindow = window.open(‘http://www.mywebpage.com’, ‘window2’, ‘width=100, height=100, location=no, menubar=no, status=no, toolbar=no, scrollbars=yes, resizable=no’);

theWindow.document.write(‘blah blah’);
[/code]

it erases all the old html and replaces it with what is included in the write function. But what I need is to open a new window to a url and append text to the end of it. Is this possible?

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