Maybe:
PHP Code:
<FRAMESET rows="75%,25%">
<FRAME src="frame1.html">
<FRAME src="frame2.html">
</FRAMESET>
That will create a window with two frames, one 75% in size, one 25% in size.
You can replace 25% with a * to make it automatic.
See
Here for more Frame info.
Oh BTW, that's HTML.. even though the code block says it's PHP hehe.