날짜 함수

function getDate() {

  var d = new Date(),

      month = '' + (d.getMonth() + 1),

      day = '' + d.getDate(),

      year = '' + d.getFullYear(),

      hh = '' + d.getHours(),

      mm = '' + d.getMinutes(),

      ss = '' + d.getSeconds()

      ;

  if (month.length < 2) month = '0' + month;

  if (day.length < 2) day = '0' + day;

  if (hh.length < 2) hh = '0' + hh;

  if (mm.length < 2) mm = '0' + mm;

  if (ss.length < 2) ss = '0' + ss;

  return [year, month, day].join('-') + ' ' + [hh, mm, ss].join(':');

}