function include(xUrl,xId)
    {
    if (typeof XMLHttpRequest!='undefined') xmlhttp = new XMLHttpRequest();
    else if (typeof window.ActiveXObject!="undefined") xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
    else return false;

    xmlhttp.open("GET", xUrl,true);
    xmlhttp.onreadystatechange=function()
        {
        if (xmlhttp.readyState==4)
            document.getElementById(xId).innerHTML = xmlhttp.responseText;
        }
    xmlhttp.send(null)
    }