code: function(moduleElement){
              moduleElement = moduleElement || this.element;
  
              if (this.body && !Dom.inDocument(this.body)) {
                  // There is a body, but it's not in the DOM yet. Need to add it.
                  if (this.footer && Dom.isAncestor(moduleElement, this.footer)) {
                      moduleElement.insertBefore(this.body, this.footer);
                  } else {
                      moduleElement.appendChild(this.body);
                  }
              }
          }
docs: Renders the currently set body into it's proper position under the
  module element. If the module element is not provided, "this.element"
  is used.
  
  @method _renderBody
  @protected
  @param {HTMLElement} moduleElement Optional. A reference to the module element.