// Ajax form submission
function submitForm()
{
  var http = null;
  if(window.XMLHttpRequest)
    http = new XMLHttpRequest();
  else if (window.ActiveXObject)
    http = new ActiveXObject("Microsoft.XMLHTTP");

  http.onreadystatechange = function()
  {
    if(http.readyState == 4){
        var response = http.responseText;
        var update = new Array();
        if(response.indexOf('|' != -1)) {
            update = response.split('|');
            document.getElementById(update[0]).innerHTML = update[1];
        }
    }
  }

  http.open('POST', '/movies/pendragon/fanclub/signup.php', true);
  http.setRequestHeader('Content-Type',
    'application/x-www-form-urlencoded');
  http.send("email=" + document.getElementById('email').value);
}

// Clear selected form fields
function clearDefault(el) {
  if (el.defaultValue==el.value) el.value = ""
}