index.htm

codice:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Documento senza titolo</title>
</head>

<body>

<iframe 
      src="1.htm" 
      name="ifr1" 
      width="500" 
      marginwidth="0" 
      height="500" 
      marginheight="0" 
      align="top" 
      scrolling="auto" 
      hspace="0" 
      vspace="0" 
      allowtransparency="true" 
      application="true">
</iframe>

<iframe 
      src="3.htm" 
      name="ifr2" 
      width="500" 
      marginwidth="0" 
      height="500" 
      marginheight="0" 
      align="top" 
      scrolling="auto" 
      hspace="0" 
      vspace="0" 
      allowtransparency="true" 
      application="true">
</iframe>


</body>
</html>
1.htm

codice:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Documento senza titolo</title>
</head>

<body>
Link
</body>
</html>
2.htm

codice:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Documento senza titolo</title>
</head>

<body>
pagina 2
</body>
</html>