function validar(Form) {
  return (
  validarName(Form.name.value)
  && validarlastname(Form.lastname.value)
  && validaremail(Form.email.value)
  && validarWeb(Form.www.value)
  && validarcomment(Form.comment.value)
//  && wordCount(Form.comment.value)

          );
 }

function validarName(name) {
   var cadena = "Name has no data.\n"
   +"please, full it";

   if (name=="") {
   alert(cadena);
   return false;
   }
   else return true;
   }

function validarlastname(lastname)
   {
   var cadena = "Last Name has no data.\n"
   +"please, full it";

   if (lastname=="") 
     {
   alert(cadena);
   return false;
     }
   else return true;
   }

function validaremail(email) {
  if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(email))
     {
    
    return true
      } else {
    alert("Incorrect e-mail. Please try again.");
    return false;
             }
 }

function validarcomment(comment)
   {
  var longitud=comment.length
  var cadena='Troppo lungo!!!';
  if (longitud > 10)       
     {
  alert (cadena);
  return false;
     }
  else return true;
   }