code: function _handleSelectMonth(oEvent){
  
  		var oFocusedDate = new UniversalDate(this._getFocusedDate().getTime());
  		var oMonthPicker = this.getAggregation("monthPicker");
  		var iMonth = oMonthPicker.getMonth();
  
  		oFocusedDate.setUTCMonth(iMonth);
  
  		if (iMonth != oFocusedDate.getUTCMonth() ) {
  			// day did not exist in this month (e.g. 31) -> go to last day of month
  			oFocusedDate.setUTCDate(0);
  		}
  
  		_focusDate.call(this, oFocusedDate, true);
  
  		_hideMonthPicker.call(this);
  
  	}
docs: Handles user selection of a month from the Month Picker.
  This function assumes there is a "monthPicker" aggregation.
  So callers must take care.
  @return {void}
  @private