warnButton = LinkFactory.createButton("guidemo.window.control.warn", vcMain, this);
errorButton = LinkFactory.createButton("guidemo.window.control.error", vcMain, this);
pushButton = LinkFactory.createButton("guidemo.window.control.push", vcMain, this);
//add source view control
Controller sourceview = new SourceViewController(ureq, wControl, this.getClass(), vcMain);
vcMain.put("sourceview", sourceview.getInitialComponent());
this.putInitialPanel(vcMain);
}