Sto cercando di imparare il javascript e nonostante abbia già utilizzato qualche volta questo linguaggio, ora sono bloccato su cose semplicissime.
Ecco il codice
Codice PHP:
<html>  
  <head >
    <title>Preferiti</title>
        <script language="JavaScript">
        function verifica()
        {
            alert("Ciao");     
        }
        </script>
  </head>  
  <body>    
    

      
      <font color="blue" size="7">        
        <p align="center">Database siti         
        </p>      
      </font>      
      
      
            
      <form action="link.php" method="post">        
        <table cellspacing="20" width=80% align="center">          
          <tr align="center"><td>              
              <font size="5">Link               
              </font></td><td>              
              <font size="5">Descrizione               
              </font></td><td>              
              <font size="5">Genere               
              </font></td>          
          </tr>          
          <tr align="center" valign="top"><td>              
              <input name="link" size="35"></td><td>
              <textarea name="descrizione" rows="4" cols="20"></textarea></td><td>
              <select name="genere">                
                <option value = "Tutti">Tutti                 
                </option>                
                <option value = "Informatica">Informatica                 
                </option>                
                <option value = "Varie">Varie                 
                </option>                
                <option value = "Utili">Utili                 
                </option>                
                <option value = "Musica">Musica                 
                </option>                
                <option value = "Libri">Libri                 
                </option>              
              </select></td><td>              
              <input name= "bottone" value="Inserisci" type="submit" onSubmit="verifica(this)";></td><td>
              <input name= "bottone" value="Cerca" type="submit"></td><td>              
              <input name= "bottone" value="Mostra tutti" type="submit"></td>          
          </tr>        
        </table>      
      </form>    
    </p>
</table>   
    
    
    
  
  </body>
</html> 
Quando premo il pulsante inserisci non compare alcuna finestra...

Grazie per gli aiuti