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<form method="POST">
<table border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="100%">
<textarea rows="12" name="charcount" cols="60" wrap="virtual"></textarea>
</td>
</tr>
<tr>
<td width="100%"><div align="right"><p><input type="button" value="Calcola i caratteri"
onClick="countit(this)"> <input type="text" name="displaycount" size="20"></p>
</td>
</tr>
</table>
</form>
<script language="JavaScript">
function countit(what)
{
  formcontent=what.form.charcount.value
  what.form.displaycount.value=formcontent.length
}
</script>