格式化日期

 var OverView = OverView || {}
    Date.prototype.format = function(format) {
        var o = {
            "M+": this.getMonth() + 1, //month
            "d+": this.getDate(), //day
            "h+": this.getHours(), //hour
            "m+": this.getMinutes(), //minute
            "s+": this.getSeconds(), //second
            "q+": Math.floor((this.getMonth() + 3) / 3), //quarter 季度
            "S": this.getMilliseconds() //millisecond
        }
        //返回年的值
        if (/(y+)/.test(format)) {
            format = format.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
        }

        for (var k in o) {
            if (new RegExp("(" + k + ")").test(format)) {
                format = format.replace(RegExp.$1, RegExp.$1.length == 1 ? o[k] : ("00" + o[k]).substr(("" + o[k]).length));
            }
        }
        return format;
    }
    OverView.getdate = function() {
        var a = new Array("日", "一", "二", "三", "四", "五", "六");
        var week = new Date().getDay();
        var str = a[week];//获取星期几
        var date = new Date().format("yyyy年MM月dd日")//返回对应格式的年月日
        var time = new Date().format("hh:mm:ss")//返回对应格式的时分秒
        $("#timecontainer").empty();
        $("#timecontainer").append('<div style="width:60%;height:100%;display:inline-block;padding-left:10px"><span style="font-size:5.0em">' + time + '</span></div><div style="width: 40%; height: 100%; display: inline-block;  font-size: 1.5em;vertical-align:top;padding-top:20px;padding-left:15px;"><span style="display:inline-block">星期' + str + '</span><br /><span style="display: inline-block">' + date + '</span></div>')
    }