function postit(){ 
 
  if (document.enquire.subject.value == '') {   
  alert('Missing Subject!');   
  return false; 
  }
  if (document.enquire.FirstName.value == 'Name') {   
  alert('Missing First Name!');   
  return false; 
  }
  if (document.enquire.LastName.value == '') {   
  alert('Missing Last Name!');   
  return false; 
  }

email = document.enquire.EmailAddress.value
AtPos = email.indexOf("@")
StopPos = email.lastIndexOf(".")

if (AtPos == -1 || StopPos == -1) {
alert('Missing or Invalid Email address!');   
return false; 
}

return true;
}