EJB 3.0 Database Persistence with Ajax in the UI - EJB 3.0 Database Persistence with Oracle Fusion Middleware 11g - page 290

xmlHttpRequest.onreadystatechange = processRequest;
xmlHttpRequest.send(null);
function processRequest() {
if (xmlHttpRequest.readyState == 4) {
if (xmlHttpRequest.status == 200) {
processResponse();
}
}
}
function processResponse() {
var xmlMessage = xmlHttpRequest.responseXML;
var valid = xmlMessage.getElementsByTagName("valid")[0].
firstChild.nodeValue;
if (valid == "true") {
var validationMessage =
document.getElementById("validationMessage");
validationMessage.innerHTML = "Catalog Id is Valid";
document.getElementById("submitForm").disabled = false;
var journalElement = document.getElementById("journal");
journalElement.value = "";
var publisherElement = document.
getElementById("publisher");
publisherElement.value = "";
var editionElement = document.getElementById("edition");
editionElement.value = "";
var titleElement = document.getElementById("title");
titleElement.value = "";
var authorElement = document.getElementById("author");
authorElement.value = "";
}
if (valid == "false") {
var validationMessage =
document.getElementById("validationMessage");
validationMessage.innerHTML = "Catalog Id is not Valid";
document.getElementById("submitForm").disabled = true;