jquery中怎么格式化时间

$(function(){
    //当前时间格式化yyyy-MM-dd HH:mm:ss
    alert(timeStamp2String(new Date().getTime()));
    alert(timeStamp3String(new Date().getTime()));
    debugger;
});
//在Jquery里格式化Date日期时间数据
function timeStamp2String(time){
    var datetime = new Date();
    datetime.setTime(time);
    var year = datetime.getFullYear();
    var month = datetime.getMonth() + 1 < 10 ? "0" + (datetime.getMonth() + 1) : datetime.getMonth() + 1;
    var date = datetime.getDate() < 10 ? "0" + datetime.getDate() : datetime.getDate();
    var hour = datetime.getHours()< 10 ? "0" + datetime.getHours() : datetime.getHours();
    var minute = datetime.getMinutes()< 10 ? "0" + datetime.getMinutes() : datetime.getMinutes();
    var second = datetime.getSeconds()< 10 ? "0" + datetime.getSeconds() : datetime.getSeconds();
    return year + "-" + month + "-" + date+" "+hour+":"+minute+":"+second;
}