var xmlHttp3;

function getSubscription(){
  xmlHttp3=GetXmlHttpObject();
  if (xmlHttp3==null){
    alert ("Your browser does not support AJAX!");
    return;
  } 
  var url="addmember.php";
  url=url+"?fname="+document.getElementById("fname").value;
  url=url+"&lname="+document.getElementById("lname").value;
  url=url+"&email="+document.getElementById("email").value;
  url=url+"&validator="+document.getElementById("validator").value;
  url=url+"&sid="+Math.random();
  xmlHttp3.onreadystatechange=getSubscriptionStateChanged;
  xmlHttp3.open("GET",url,true);
  xmlHttp3.send(null);
} 

function getSubscriptionStateChanged() { 
  if (xmlHttp3.readyState==4){ 
    alert(xmlHttp3.responseText);
  }
}