<span id="time"></span>
<script>
function setTime(val)
{
    val = parseInt(val) + 1;
    var D = new Date(val * 1000);

    var dateStr = "";
    var dateStr = dateStr + D.getFullYear() + "年";
        dateStr = dateStr + (D.getMonth() + 1) + "月";
        dateStr = dateStr + D.getDate() + "日 ";
        dateStr = dateStr + D.getHours() + ":";
        dateStr = dateStr + D.getMinutes() + ":";
        dateStr = dateStr + D.getSeconds();
    document.getElementById("time").innerHTML = dateStr;
    setTimeout("setTime(" + val + ")", 1000);
}
var val = 1328151430;
setTime(val);
</script>