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>..............</title>
</head>
<body>
<form id="richiesta" action="richiesta.php" target="mia" onsubmit="{window.open('','mia','scrollbars=no,left=390,top=100,resizable=no,width=360,height=500,status=no,location=no,toolbar=no')};">
<button name="cod" type="submit" style="background:none; border:none;">C81</button>
<button name="cod" type="submit" style="background:none; border:none;">C42</button>
</form>
</body>
</html>