Frames problem

I need to post a popup code in a page with a frameset. However, the popup
will be auto-inserted at the very top the source code. I know this is bad
html syntax, but is it possible to do this?

Basically here's the main frame source:

<html>
<FRAMESET COLS="22%,78%">
<FRAME NAME="A" SRC="left.htm">
<FRAME NAME="B" SRC="right.htm">
</FRAMESET>
</html>

I need to place code before the starting "<html>" that will pop up a window.
Help?


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