code: function() {
          for (var p=0;p<this.pages.length;++p) {
              var cal = this.pages[p];
              cal.clear();
          }
  
          this.cfg.setProperty(DEF_CFG.SELECTED.key, []);
          this.cfg.setProperty(DEF_CFG.PAGEDATE.key, new Date(this.pages[0].today.getTime()));
          this.render();
      }
docs: Clears the selected dates in the current calendar widget and sets the calendar
  to the current month and year.
  @method clear