Questo l'HTML del form:

codice:
  <form action="/libri/sendBook.php" method="POST" ONSUBMIT="return BOOK(this)" target="SENDBOOK">                    
                    <table width="450" style="border-collapse:collapse;">
                      <tr>
                        <td valign="bottom" style="padding:0px; width: 22px;">
                        	
                        </td>
                        <td valign="bottom" style="padding:0px;">
                        	<div align="left">Segnala un Libro</div>
                        </td>
                        <td valign="bottom" style="padding:0px;">
                        	<div align="right"><font class="piccola"></font></div>
                        </td>    
                      </tr>
                      <tr>
                        <td>
                          
                        </td> 
                        <td colspan="2" style="text-align:justify;background-image:URL(http://www.psd.it/images/categorie/pattern_2.gif);padding:5px;">
                      
                          <table style="width:90%;">
                            <tr>
                              <td>
                                  Titolo
                              </td>
                              <td>
                                  <input type="text" name="title" class="tfy"  maxlength="80" style="width:250px;font-family:Courier;">
                              </td>
                            </tr>
                            <tr>
                              <td>
                                  Editore
                              </td>
                              <td>
                                  <input type="text" name="editore" value="" class="tfy"  style="width:250px; font-family:Courier;" maxlength="80" >
                              </td>        
                            </tr>
                            <tr>
                              <td width="165">	
                                  Descrizione
                              </td>
                              <td width="165">	
                                  <textarea class="tfy" cols="20" rows="5" style="width:250px;font-family:Courier;" name="description">Inserite qui la descrizione ;)</textarea>
                              </td>  
                            <tr>
                              <td>
                                 
                              </td>
                              <td>
                                <div align="right">
                                  Firma <input type="text" name="firma" value="" class="tfy"  style="width:100px; font-family:Courier;" maxlength="80" >
                                </div>
                              </td>        
                            </tr>                                    
                          </table>
                     
                        </td>
                      </tr>
                      <tr>
                        <td>
                          
                        </td> 
                        <td style="text-align:justify; background-image:URL(http://www.psd.it/images/categorie/bottom_2.gif);padding:0px;" colspan="2">
                        	
                        </td>
                      </tr>
                      <tr>  
                        <td colspan="3">
                          <div align="right">
                            <input type="hidden" name="operazione" value="2">
                            <input type="submit" class="pbnav" value="Invia"  style="width:110px;">
                          </div>
                        </td>        
                      </tr>	                      
                    </table>
                  </form>
Ovviamente poi la action va personalizzata per quello che deve specifitatamente eseguire. Nello specifico caso --> /libri/sendBook.php