buongiono,
io non so programmare in html, il cliente mi ha richiesto un modulo contatti, io ho provato a farne uno, ma non funziona, potreste dirmi che cosa sbaglio?

vi allego lo script:
<div id="Layer1" style="position:absolute; width:200px; height:115px; z-index:1; left: 40px; top: 217px;">
<div align="left"></div>
<table border="0" cellpadding="0" cellspacing="0" width="510">
<tbody>
<tr>
<td width="5" align="center" valign="top" background="contatti.asp_files/sfondo_interna.html" class="Stile14"><table align="center" border="0" cellpadding="4" cellspacing="0" width="500">
<tbody>
<tr>
<td valign="top">
<div align="left"><span class="nero"><span class="Stile16">Per qualsiasi informazione, non esitate a contattarci tramite il modulo sottostante. </span>



</span>
</div>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tbody>
<tr>
<td valign="top"><form method="post" name="form_invio" id="form_invio" action="contatti.asp">
<table>
<tbody>
<tr>
<td height="99"><table align="left" border="0" cellpadding="0" cellspacing="0" width="95%">
<tbody>
<tr>
<td width="70" class="Stile11">Nome *</td>
<td><span class="nero">
<input style="height: 17px; width: 200px;" name="nome">
</span></td>
</tr>
<tr>
<td class="Stile11">Cognome*</td>
<td><span class="nero">
<input style="height: 17px; width: 200px;" name="cognome">
</span></td>
</tr>
<tr>
<td class="nero Stile11">Citt&agrave;</td>
<td><span class="nero">
<input style="height: 17px; width: 200px;" name="sede">
</span></td>
</tr>
<tr>
<td class="nero Stile11">Telefono</td>
<td><span class="nero">
<input style="height: 17px; width: 200px;" name="telefono">
</span></td>
</tr>
<tr>
<td class="Stile11">Email*</td>
<td><span class="nero">
<input style="height: 17px; width: 200px;" name="e_mail">
</span> </td>
</tr>
</tbody>
</table> </td>
<td valign="top" width="40%"></td>
</tr>
<tr>
<td colspan="2" valign="top"><table align="left" border="0" cellpadding="0" cellspacing="0" width="95%">
<tbody>
<tr>
<td valign="top"><span class="nero Stile11">Messaggio </span>

<textarea name="testo_messaggio" id="testo_messaggio" style="width: 500px;" rows="9" class="nero"></textarea> </td>
</tr>
</tbody>
</table></td>
</tr>
</tbody>
</table>
</form></td>
</tr>
<tr>
<td height="34"><table width="500">
<tbody>
<tr>
<td><input name="privacy" style="border: 0pt none ;" type="checkbox">
<span class="nero"><span class="Stile17">Acconsento la trattamento dei miei dati personali ai sensi del D.lgs196/2003 </span>

</span> </td>
</tr>
<tr>
<td><center>
<input value="Invia" class="nero" onClick="invio_form();return false;" style="background-color: rgb(51, 153, 204);" id="submit1" name="submit1" type="submit">
<input value="Cancella" class="nero" style="background-color: rgb(51, 153, 204);" id="reset1" name="reset1" type="reset">
</center></td>
</tr>
<tr>
<td><center>
<span class="bordeaux Stile17">*I campi contrassegnati con l'asterisco sono obbligatori</span>
</center></td>
</tr>
</tbody>
</table></td>
</tr>
</tbody>
</table></td>
</tr>
</tbody>
</table></td>
</tr>
</tbody>
</table>
</div>