spojeni dvou frame

cao mam stranku rozdelenu na niekolko frameov.. a potrebujem pri jednej volbe v menu spojit "stred" a "info" do jedneho framu..

<frameset frameborder="no" border=0 rows="100 , * ">
<frame noresize scrolling="no" src="menu.html">

<frameset frameborder="no" border=0 cols="*,140,600,175,*">
<frame noresize scrolling="no" name="vlavo" src="strany.html">
<frame noresize scrolling="no" name="google" src="link.html">
<frame noresize scrolling="auto" name="stred" src="frame.html">
<frame noresize scrolling="no" name="info"src="panel.html">
<frame noresize scrolling="no" name="vpravo" src="strany.html">.html">
</frameset>

a potrebujem ho prepinat nejako do takehoto framesetu a naspet.. skusal som urobit cele nove indexi ale tak to neslo..

<frameset frameborder="no" border=0 rows="100 , * ">
<frame noresize scrolling="no" src="menu.html">

<frameset frameborder="no" border=0 cols="*,140,775,*">
<frame noresize scrolling="no" name="vlavo" src="strany.html">
<frame noresize scrolling="no" name="google" src="link.html">
<frame noresize scrolling="auto" name="stred" src="frame.html">
<frame noresize scrolling="no" name="vpravo" src="strany.html">.html">
</frameset>

sri.. no tak uz sem to viresil ;)