The code for the frameset you are using right now looks like this:
<html>
<head>
<title>"Frames"lecture notes</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<frameset rows="80,*" frameborder="NO" border="0"
framespacing="0">
<frame name="topFrame" scrolling="NO" noresize src="title.htm"
>
<frameset cols="150,*" frameborder="NO" border="0"
framespacing="0">
<frame name="leftFrame" scrolling="NO" noresize src="index.htm">
<frame name="mainFrame" src="front.htm">
</frameset>
</frameset>
<noframes><body bgcolor="#FFFFFF" text="#000000">Please
update your browser
</body></noframes>
</html>