function loadXMLDoc()
{
    var xmlhttp;
    if (window.XMLHttpRequest)
    {
        // code for IE7+, Firefox, Chrome, Opera, Safari, etc.
        xmlhttp = new XMLHttpRequest();
    }
    else
    {
        // code for IE6, IE5
        xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
    }

    xmlhttp.onreadystatechange=function()
    {
        if (xmlhttp.readyState == 4 && xmlhttp.status == 200)
        {
            var a = eval('(' + xmlhttp.responseText + ')');
            document.getElementById("discordian-date").innerHTML = a.date;
        }
    }

    var d = new Date();

    xmlhttp.open("POST", "get-date", true);
    xmlhttp.setRequestHeader("Content-type",
                             "application/x-www-form-urlencoded");
    xmlhttp.send("time=" + d.getTime());

    // call every 60 secs
    setTimeout(loadXMLDoc, 60000);
}