jquery字符串转成时间格式，及获取几天后的时间

//字符串转成时间
      function getDate(strDate) {    
                    var date = eval(‘new Date(‘ + strDate.replace(/\d+(?=-[^-]+$)/,    
                     function (a) { return parseInt(a, 10) - 1; }).match(/\d+/g) + ‘)‘);    
           return date;    
      }
    //获取几天后的时间
      function getAfterDate(d,n) {
          var year = d.getFullYear();
          var mon = d.getMonth() + 1;
          var day = d.getDate();
          if (day <= n) {
              if (mon > 1) {
                  mon = mon - 1;
              }
              else {
                  year = year - 1;
                  mon = 12;
              }
          }
          d.setDate(d.getDate() +n);
          year = d.getFullYear();
          mon = d.getMonth() + 1;
          day = d.getDate();
          s = year + "-" + (mon < 10 ? (‘0‘ + mon) : mon) + "-" + (day < 10 ? (‘0‘ + day) : day);
          return s;
      }