code: function(cal) {
          var calBox = cal.oDomContainer;
  
          this.cal = cal;
          this.id = calBox.id + YAHOO.widget.CalendarNavigator.ID_SUFFIX;
          this._doc = calBox.ownerDocument;
  
          /**
           * Private flag, to identify IE Quirks
           * @private
           * @property __isIEQuirks
           */
          var ie = YAHOO.env.ua.ie;
          this.__isIEQuirks = (ie && ((ie <= 6) || (this._doc.compatMode == "BackCompat")));
      }
docs: Init lifecycle method called as part of construction
  
  @method init
  @param {Calendar} cal The instance of the Calendar or CalendarGroup to which this CalendarNavigator should be attached