String clientId = grid.getClientId(context);
boolean sorted = false;
Map<String, String> parameters = externalContext.getRequestParameterMap();
String s_id = clientId + ":si";
grid.resetReqRowsCount();
if(parameters.containsKey(s_id)){
String options = (String)parameters.get(s_id);
grid.setScrollPos(options);
if(options.length() > 0){
String[] si = options.split(",");