xslt.setStylesheetParameter("action", action);
xslt.transform();
if (categoryServant != null && action.equals("selectCategories")) {
((IChannel)categoryServant).renderXML(out);
xslt.setStylesheetParameter("action", "selectCategoriesButtons");
xslt.transform();
}
if (groupServant != null && action.equals("selectGroups")) {
((IChannel)groupServant).renderXML(out);
xslt.setStylesheetParameter("action", "selectGroupsButtons");
xslt.transform();