function spedisci(){
var ok=true;

if(ok==true){
var vnome=document.forms[0].nome.value;
if(vnome.length<2){alert("Insert your name.");
document.forms[0].nome.focus();
ok=false;}}

if(ok==true){
var vragsoc=document.forms[0].ragsoc.value;
if(vragsoc.length<2){alert("Insert your surnamer or your company name.");
document.forms[0].ragsoc.focus();
ok=false;}}

if(ok==true){
var vtelefono=document.forms[0].telefono.value;
if(vtelefono.length<2){alert("Insert your telephone number.");
document.forms[0].telefono.focus();
ok=false;}}

if(ok==true){
var stringa=document.forms[0].email.value;
if(((stringa.length-stringa.lastIndexOf('.'))>6)||((stringa.length-stringa.lastIndexOf('.'))<3)||(stringa.indexOf('@')<0)||(stringa.indexOf('@')!=stringa.lastIndexOf('@'))||((stringa.lastIndexOf('.'))-(stringa.lastIndexOf('@'))<3)){alert("Invalid email address. \nPlease, insert a valid email.");
document.forms[0].email.focus();
ok=false;}}

if(ok==true){
var vaccetta=document.forms[0].accetto;
if(vaccetta.checked==false){alert("It is necessary to accept conditions specified in the Informative report about data processing (D.Lgs. 30.06.2003 no. 196)");
vaccetta.focus();
ok=false;}}

if(ok)document.forms[0].submit();
}