nextsAction = new RenderNextsAction(page);
nextsAction.setImageDescriptor(AbstractUIPlugin.imageDescriptorFromPlugin("es.iiia.sgi",
"icons/sitemap.png"));
resetAction = new RenderResetAction(page);
// init colntrols
protocol = new ProtocolCombo("Protocol: ");
randomization = new RandomizationCombo("Randomization");
useMarkers = new UseMarkersCheckbox("UseMarkers");