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codice:
<html>
<head>
<title>Menu a tendina</title>
<script language="JavaScript">
<!--
function go(frm) {
var sel=(frm.elements[0].options[frm.elements[0].selectedIndex]);
if (eval(sel).value!= "none") {window.open(eval(sel).value, '', 'toolbar,menubar,scrollbars,resizable,directories,status,location,copyhistory,');}
}
//-->
</script>
</head>
<body>
<form name="F0">
<select name="S0" size="1" onChange="go(this.form)">
<optgroup label="siti per webmaster">
<option value="http://www.html.it">www.html.it </option>
<option value="http://freephp.html.it">frephp.html.it </option>
<option value="http://freasp.html.it">freasp.html.it </option>
</optgroup>
<optgroup label="risorse per webmaster">
<option value="http://font.html.it">font.html.it </option>
<option value="http://cgipoint.html.it">cgipoint.html.it </option>
</optgroup>
</select>
</form>
</body>
</html>
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