Can any body help me please?

The code is as follows:

The request is made as follows in javascript

function validateLogin() {
req = newXMLHttpRequest();
var url = "http://localhost:8090/RealEstateProject/UserLogin";
req.open("GET", url, true);
req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
req.onreadystatechange = updateMsg;
req.send(null);
}

The updateMsg is as follows:


function updateMsg() {
if (req.readyState==4 ) {
responseFromServlet = req.responseXML;
var cart = responseFromServlet.getElementsByTagName("cart")[0];
//var item = cart.getElementsByTagName("item");//.firstChild.nodeValue;
//var name = item.getElementsByTagName("name")[0].firstChild.nodeValue;
//alert (name);
alert("response Text: "+responseFromServlet);


The variable item is not coming and the error is object does not support this.

The responseFromServlet is coming null.

at the servlet end


response.setContentType("text/xml");
String xmlL = toXml();
System.err.println(xmlL);
response.getWriter().write(xmlL);


The toXML method is:


public String toXml() {
StringBuffer xml = new StringBuffer();
xml.append(" <?xml version="1.0"?>
");
xml.append("
");

xml.append("
");
xml.append(" ");
xml.append("Sweta GUPTA");
xml.append("
");
xml.append(" ");
xml.append("Papa gupta");
xml.append("
");
xml.append("
");

xml.append("
");
return xml.toString();
}