var xmlRequest,e;
function checkPasswoard()
{
      if (xmlRequest.readyState == 4) {
        <!-- alert(xmlRequest.responseText); -->
        if (xmlRequest.status == 200) {
            window.location = "http://www.mfaelearning.com/default/mainForm.aspx";
        } else {
            alert("There was a problem retrieving the XML data:\n" +
                xmlRequest.statusText);
     }
    }
 }

function getXmlRequest(usr,pass)
{
    try {
        xmlRequest = new XMLHttpRequest();
    }
    catch(e) {
        try {
            xmlRequest = new ActiveXObject("Microsoft.XMLHTTP");
        }
        catch(e) {
        }
    }
    var myurl = "http://www.mfaelearning.com/default/Forms/LoginForm.aspx?usr="+usr+"&pass="+pass;
    xmlRequest.open("GET", myurl , true);
    <!-- alert( myurl); -->
    xmlRequest.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
    xmlRequest.onreadystatechange = checkPasswoard;
    xmlRequest.send("");
}