Codice PHP:


                                include 'include/header.inc.php';
                                include 'include/menufluoro.inc.php';
                                include 'include/left.inc.php';
echo "
<td>
<html>
<head>
<script type=\"text/javascript\" src=\"tabber.js\"></script> 
<link rel=\"stylesheet\" href=\"example.css\" type=\"text/css\" media=\"screen\" ></link> 
<link rel=\"stylesheet\" href=\"info.css\" type=\"text/css\" media=\"screen\" ></link>     
</head>

<body>";
    if(!isset($scelta))
    {
    $scelta=0;
    
echo "

<div name=a0 class=\"tabber\">

<div name=a1 class=\"tabbertab\">
<select  id=mySelect1 onChange=\"window.open(this.options[this.selectedIndex].value,'_top')\" > 
<option>Scegli un opzione</option>
<option value='$_SERVER[PHP_SELF]?scelta=1'>Stato</option>
<option  value='$_SERVER[PHP_SELF]?scelta=2'>Citta</option>
echo </select>";
switch($scelta)
{
case 1:
        include 'include/conf.inc.php';
        $ris=mysql_query("select * from state;");
        $num_riga=mysql_num_rows($ris);
        echo "<table border=2><tr><td>Stato</td><td></td><td></td><td></td></tr>";
        while($riga=mysql_fetch_array($ris))
        {
        print "<tr><td>".$riga['state']."</td>";
        }
        print "<td>input type=button value=Aggiungi onclick=></td>";
        print "<td>input type=button value=Modifica onclick=></td>";
        print "<td>input type=button value=Cancella onclick=></td></tr></table>";
        
case 2:
        $ras=mysql_query("select * from town;");
        $num_riga=mysql_num_rows($ras);
        echo "<table border=2><tr><td>Localitā</td><td></td><td></td><td></td></tr>";
        while($riga=mysql_fetch_array($ras))
        {
        print "<tr><td>".$riga['town']."</td>";
        }
        print "<td>input type=button value=Aggiungi onclick=></td>";
        print "<td>input type=button value=Modifica onclick=></td>";
        print "<td>input type=button value=Cancella onclick=></td></tr></table>";
    }
echo "</div>




</div> 
</td>";
                    include 'include/rigth.inc.php';
                    include 'include/footer.inc.php';

echo "
</body>
</html>";

} 
questo č il codice solo che non mii fa niente
dove sbaglio con il php_self?
qualcuno mi aiuta?