vert.add( head );
AssetViewerActivity assetViewerActivity = new AssetViewerActivity( parentConf.getUuid(),
clientFactory );
assetViewerActivity.start( new AcceptItem() {
public void add(String tabTitle,
IsWidget widget) {
ScrollPanel pnl = new ScrollPanel();
pnl.setWidth( "100%" );
pnl.add( widget );