var req;
var targetID;
function load(url,element) {
        targetID = element;
        req = false;
    // branch for native XMLHttpRequest object
    if(window.XMLHttpRequest && !(window.ActiveXObject)) {
        try {
                        req = new XMLHttpRequest();
        } catch(e) {
                        req = false;
        }
    // branch for IE/Windows ActiveX version
    } else if(window.ActiveXObject) {
        try {
                req = new ActiveXObject("Msxml2.XMLHTTP");
        } catch(e) {
                try {
                        req = new ActiveXObject("Microsoft.XMLHTTP");
                } catch(e) {
                        req = false;
                }
                }
    }
        if(req) {
                req.onreadystatechange = processReqChange;
                req.open("GET", url, true);
                req.send("");
        }
}

function processReqChange() {
    var target;
    // only if req shows "loaded"
    if (req.readyState == 4) {
        // only if "OK"
        if (req.status == 200) {
            // ...processing statements go here..
            target = document.getElementById(targetID);
            target.innerHTML = req.responseText;
        } else {
            alert("There was a problem retrieving the XML data:\n" +  req.statusText);
        }
    }
}