MainLeft, source of the frames :
<HTML>
<HEAD>
<TITLE>HTML Tag List: FRAME example</TITLE>
</HEAD>
<FRAMESET rows="100,*,33%">
 <FRAME src="FRAME2.html" name="Header" marginheight="2" marginwidth="2" noresize scrolling="no">
 <FRAMESET cols="2*,*">
  <FRAME src="FRAME4.html" name="MainLeft" frameborder="yes" framespacing="25">
  <FRAME src="FRAME5.html" name="MainRight" frameborder="yes" framespacing="25">
 </FRAMESET>
 <FRAME src="FRAME3.html" name="Footer" marginheight="20" marginwidth="20" noresize scrolling="no">
 <NOFRAMES>
  <CENTER><H1>No frames alert!</H1></CENTER>
  <HR>
  The best is to supply a <A href="FRAME1.html">link to a non-framed version</A>
  of the page.
 </NOFRAMES>
</FRAMESET>
</HTML>