function isHidden(elm) {
				if (elm.nodeType === 1) {
					if (elm.nodeName == "BR" || !!elm.getAttribute('data-mce-bogus')) {
						return true;
					}

					if (elm.getAttribute('data-mce-type') === 'bookmark') {
						return true;
					}
				}

				return false;
			}
Post render method. Called after the control has been rendered to the target.

@method postRender
@return {tinymce.ui.ElementPath} Current combobox instance.