一,获值

 1.$("#id").datebox('getValue')

 2.$("input[name='mydate']").val()

参考:http://www.cnblogs.com/iyangyuan/p/3358239.html

二,赋值(赋当前时间)

//获取当前日期并格式化
function getNowFormatDate() {
  var date = new Date();
  var seperator1 = "-";
  var seperator2 = ":";
  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 = date.getFullYear() + seperator1 + month + seperator1 + strDate;
  return currentdate.toString();
}

 //页面初始化

 $(function () { 

    $("#PurDate").datebox('setValue', getNowFormatDate());

 });

 参考:http://www.cnblogs.com/caiyezi/p/6184013.html