code: function(id,containerId,config) {
          var container = document.getElementById(containerId);
          if (! container) {
              container = document.createElement("div");
              container.id = containerId;
              this.oDomContainer.appendChild(container);
          }
          return new Calendar(id,containerId,config);
      }
docs: Constructs a child calendar. This method can be overridden if a subclassed version of the default
  calendar is to be used.
  @method constructChild
  @param {String} id   The id of the table element that will represent the calendar widget
  @param {String} containerId The id of the container div element that will wrap the calendar table
  @param {Object} config  The configuration object containing the Calendar's arguments
  @return {YAHOO.widget.Calendar} The YAHOO.widget.Calendar instance that is constructed