public void selectElementNS_F(String ns_URL, String ln){
protected void selectElementNS_F(String ns_URL, String ln){ if (ln == null) throw new IllegalArgumentException("local name can't be null");
public void selectElementNS_F(String ns_URL, String ln){	iter_type = FOLLOWING_NS;    ft = true;    localName = ln;    URL = ns_URL;}