Codice PHP:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>Documento senza titolo</title>
<script language="javascript" type="text/javascript">
function copia()
{
document.getElementById('output').value = document.getElementById('input').value;
}
</script>
</head>
<body>
<form name="form1" method="post" action="">
<input name="input" type="text" id="input">
</p>
<textarea name="output" id="output"></textarea>
</p>
<input type="button" name="Submit" value="Inserisci" onClick="copia()">
</p>
</form>
</body>
</html>
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