JQ动态添加时间，方便，简单。

$(function() {
//日期添加事件
var currentDate = new Date();
$(".birthdayId").datepicker({
maxDate: currentDate,
yearRange: "1940:"+currentDate.getFullYear(),
showMonthAfterYear: true,
dateFormat:"yy-mm-dd",
dayNamesMin: [ "日", "一", "二", "三", "四", "五", "六" ],
monthNamesShort: [ "一月", "二月", "三月", "四月", "五月", "六月", "七月", "八月", "九月", "十月", "十一月", "十二月" ],
changeMonth: true,
changeYear: true,
showAnim:"slideDown"
});
});