js显示当前时间

<div id="mblog_enter_button" class="mblog_enter_button" style="display: block;padding-left:100px;"></div>
                <script language="javascript" type="text/javascript">
                    function disptime() {
                        var now = new Date(); //创建一个表示当前日期和时间的对象NOW
                        var year = now.getFullYear();
                        var month = now.getMonth() + 1;
                        var date = now.getDate();
                        var hours = now.getHours();
                        var minutes = now.getMinutes();
                        var seconds = now.getSeconds();
                        if (month >= 10) { month = month; }
                        else { month = "0" + month; }
                        if (date >= 10) { date = date; }
                        else { date = "0" + date; }
                        if (hours >= 10) { hours = hours; }
                        else { hours = "0" + hours; }
                        if (minutes >= 10) { minutes = minutes; }
                        else { minutes = "0" + minutes; }
                        if (seconds >= 10) { seconds = seconds; }
                        else {seconds = "0" + seconds;}
                        document.getElementById("mblog_enter_button").innerHTML = year + "年" + month + "月" + date + "日&nbsp;" + hours + ":" + minutes + ":" + seconds + " ";
                        setTimeout("disptime()", 1000)
                    } 
                    disptime();
                </script>