function getTotal(art) {
  var url = "http://www.aapspharmscitech.org/default/flink-call.asp";
  url = url + "?art=" + art;
  request.open("GET", url, true);
  request.onreadystatechange = updatePage;
  request.send(null);
}

function updatePage() {
  if (request.readyState == 4) {
    if (request.status == 200) {
      var newTotal = request.responseText;
      if (newTotal != 0) {
         var results = document.getElementById("num");
         replaceText(results, newTotal);
      } else {
         var clTop = document.getElementById("topcite");
         clearText(clTop);
         var clBot = document.getElementById("results");
         clearText(clBot);
      }
    }
  }
}