/**
* The contextmenu attribute gives the element's context menu. The value must be the ID of a menu
* element in the DOM. If the node that would be obtained by the invoking the getElementById()
* method using the attribute's value as the only argument is null or not a menu element, then the
* element has no assigned context menu. Otherwise, the element's assigned context menu is the
* element so identified.
*/
@Override
public DHGroup setHtmlContextMenu(final String contextMenu) {
super.setHtmlContextMenu(contextMenu);
return this;
}
