* @param rc the relevant <code>RenderContext</code>
* @param command the command
*/
private void renderOpenWindow(RenderContext rc, BrowserOpenWindowCommand command) {
ServerMessage serverMessage = rc.getServerMessage();
serverMessage.addLibrary(BROWSER_COMMAND_SERVICE.getId());
Element openWindowElement = serverMessage.appendPartDirective(ServerMessage.GROUP_ID_POSTUPDATE,
"EchoBrowserCommand.MessageProcessor", "open-window");
openWindowElement.setAttribute("uri", command.getUri());
if (command.getName() != null) {
openWindowElement.setAttribute("name", command.getName());