Map eventOptions = AjaxRendererUtils.buildEventOptions(context, tree);
Map parameters = (Map) eventOptions.get("parameters");
parameters.remove(id);
parameters.put(id + UITree.SELECTED_NODE_PARAMETER_NAME,
new JSReference("event.selectedNode"));
function.addParameter(eventOptions);
StringBuffer buffer = new StringBuffer();
function.appendScript(buffer);
buffer.append("; return false;");
return buffer.toString();
}