//http://www.webdeveloper.com/forum/showthread.php?t=212825

function include(url)  // must be a fully qualified URL, I don't know why
{
    if (url.indexOf("://") == -1) {
        url = window.location.href.substring(0, location.href.lastIndexOf("/")) + url;
    }

    var xml = !window.XMLHttpRequest ? new ActiveXObject('Microsoft.XMLHTTP') : new XMLHttpRequest;
    xml.open('GET', url, false);
    xml.send(null);
    document.writeln(xml.responseText);
}