var req;
var target;
var isIE;

function initRequest(url) {
    if (window.XMLHttpRequest) {
        req = new XMLHttpRequest();
    } else if (window.ActiveXObject) {
        isIE = true;
        req = new ActiveXObject("Microsoft.XMLHTTP");
    }
}

function doXMLRequest(url, divName) {
    var mdiv;
    mdiv = document.getElementById(divName);
    mdiv.style.display = "none";

    initRequest(url);
    req.onreadystatechange = function()
    {
    if (req.readyState == 4) {
        if (req.status == 200) {
            var message = req.responseText;

            mdiv.innerHTML = message;
            mdiv.style.display = "block";
        }
    }
    }
    req.open("GET", url, true);
    req.send(null);
}