[thelist] Possibly interesting JavaScript problem

[Jay Blanchard]

Good afternoon gurus and gurettes!

I have an interesting problem that I am trying to solve;

I have a application device that serves its own web pages. These pages
are inaccessible to me. I can only view the source of the parent window.
In that parent window is two JavaScript variables;

   var firstName = "Mort";
   var lastName =  "Sniklegroober";

The application device allows me to create a pop-up window by entering
text/HTML and I am assuming JavaScript into an interface. I have a URL
there to pop-up another form into which people will enter some
information that will be stored in a database. I would like to 'grab'
the two variables above and include them in the URL for the second
pop-up as part of the URL's querystring, producing a URL on the first
pop-up something like;

http://my.application.device?user=Mort%20Sniklegroober

I have STFW for hours and have found several examples of how to send
data to the child window. It requires that JavaScript be modified or
entered into the parent which I do not have the luxury of doing. So is
there a way to look at data in the parent so that it appears in the
child?

Thanks for any help in advance!