js 当前日期及时间

返回时间格式 ： 2016-07-22 10:22:30

function getNowFormatDate() {
        var date = new Date();
        var seperator1 = "-";
        var seperator2 = ":";
        var month = date.getMonth() + ;
        var strDate = date.getDate();
        if (month >=  && month <= ) {
            month = "" + month;
        }
        if (strDate >=  && strDate <= ) {
            strDate = "" + strDate;
        }
        var currentdate = date.getFullYear() + seperator1 + month + seperator1 + strDate
                + " " + date.getHours() + seperator2 + date.getMinutes()
                + seperator2 + date.getSeconds();
        return currentdate;
    }