动态显示时

//时间function GetTime() {    var now = new Date();    var str, colorhead, colorfoot;    var yy = now.getYear();    if (yy < 1900)        yy = yy + 1900;    var MM = now.getMonth() + 1;    if (MM < 10)        MM = '0' + MM;    var dd = now.getDate();    if (dd < 10)        dd = '0' + dd;    var hh = now.getHours();    if (hh < 10)        hh = '0' + hh;    var mm = now.getMinutes();    if (mm < 10)        mm = '0' + mm;    var ss = now.getSeconds();    if (ss < 10)        ss = '0' + ss;    var ww = now.getDay();    if (ww == 0)        colorhead = "<font>";    if (ww > 0 && ww < 6)        colorhead = "<font>";    if (ww == 6)        colorhead = "<font>";    colorfoot = "</font>"    str = colorhead + yy + "/" + MM + "/" + dd + " " + hh            + ":" + mm + ":" + ss;    return str;}setInterval(function() {$("#Date").html(GetTime)}, 1000);