function check_prev()
	{
	if(document.prev.ragsoc_required.value == "")
		{
		alert("Il campo \"Ragione sociale\" e' obbligatorio");
		return false;
		}
/*	if(document.prev.via_required.value == "")
		{
		alert("Il campo \"Via\" e' obbligatorio");
		return false;
		} */
	if(document.prev.localita_required.value == "")
		{
		alert("Il campo \"Località\" e' obbligatorio");
		return false;
		}
	if(document.prev.iva_required.value == "")
		{
		alert("Il campo \"P.IVA\" e' obbligatorio!");
		return false;
		}
/*	if(document.prev.cap_required.value == "")
		{
		alert("Il campo \"CAP\" e' obbligatorio");
		return false;
		}
	if(document.prev.nazione.value == "")
		{
		alert("Il campo \"NAZIONE\" e' obbligatorio");
		return false;
		}
	if(document.prev.tel.value == "")
		{
		alert("Il campo \"Telefono\" e' obbligatorio");
		return false;
		} */
	if(document.prev.nomecogn_required.value == "")
		{
		alert("Il campo \"Cognome e nome\" e' obbligatorio");
		return false;
		}
	if(document.prev.mail.value == "")
		{
		alert("Il campo \"E-mail\" e' obbligatorio");
		return false;
		}
    if(!document.prev.consenso.checked)
    {
      alert("Selezionare la casella di consenso al trattamento dei dati."); 
      return false;
    }
	document.prev.submit();
	}
	
	
function check_cliente_en()
	{
	if(document.prev.ragsoc_required.value == "")
		{
		alert("The field \"Trade name\" is mandatory");
		return false;
		}
	if(document.prev.via_required.value == "")
		{
		alert("The field \"Address\" is mandatory");
		return false;
		}
	if(document.prev.localita_required.value == "")
		{
		alert("The field \"City\" is mandatory");
		return false;
		}
	if(document.prev.cap_required.value == "")
		{
		alert("The field \"Zip code\" is mandatory");
		return false;
		}
	if(document.prev.iva_required.value == "")
		{
		alert("The field \"VAT number\" is mandatory");
		return false;
		}
	if(document.prev.tel.value == "")
		{
		alert("The field \"Phone\" is mandatory");
		return false;
		}
	if(document.prev.nomecogn_required.value == "")
		{
		alert("The field \"Surname and name\" is mandatory");
		return false;
		}
    if(!document.prev.consenso.checked)
    {
      alert("Please check the privacy agreement."); 
      return false;
    }
	document.prev.submit();
	}