js获取当前日期，格式为YYYY-MM-DD

function getNowFormatDate() {
        var date = new Date();
        var seperator1 = "-";
        var year = date.getFullYear();
        var month = date.getMonth() + 1;
        var strDate = date.getDate();
        if (month >= 1 && month <= 9) {
            month = "0" + month;
        }
        if (strDate >= 0 && strDate <= 9) {
            strDate = "0" + strDate;
        }
        var currentdate = year + seperator1 + month + seperator1 + strDate;
        return currentdate;
    }

var hh = now.getHours();            //时
   var mm = now.getMinutes();          //分
   var ss = now.getSeconds();          //分
   if(hh < 10)
       clock += "0";
    clock += hh + ":";
    if (mm < 10)
        clock += '0';
    clock += mm + ":";