function valid(form) {
  if (form.name.value=='') {
    alert("You must indicate your name.");
    form.name.style.backgroundColor='#F3DDD5';
    return false;
  }
  else { form.name.style.backgroundColor=''; } 
  
  if (form.eMail.value=='') {
    alert("You must indicate your Email.");
    form.eMail.style.backgroundColor='#F3DDD5';
    return false;
  }
  else { form.eMail.style.backgroundColor=''; }

  if (form.Phone.value=='') {
    alert("You must indicate the Phone Number.");
    form.Phone.style.backgroundColor='#F3DDD5';
    return false;
  }
  else { form.Phone.style.backgroundColor=''; }

  if (form.Subject.value=='') {
    alert("You must indicate the Subject.");
    form.Subject.style.backgroundColor='#F3DDD5';
    return false;
  }
  else { form.Subject.style.backgroundColor=''; }
  
  if (form.Message.value=='') {
    alert("You must indicate your Message.");
    form.Message.style.backgroundColor='#F3DDD5';
    return false;
  }
  else { form.Message.style.backgroundColor=''; }
  

  return true;
}