function forum_setUnrLogin() {
    forum_enableLogin(true);
}

function forum_setUnrRegister() {
    forum_enableLogin(false);
}

function forum_enableLogin(login) {
    
    var i=0;
    var f;
    while (true) {
      f = document.forms[i];
      if (!f) return;
      if (f.name == "form_forum_newmsg") break;
      i++;
    }
    forum_enable(f.l__u_postmsg, login);
    forum_enable(f.l__p_postmsg , login);
    forum_enable(f.r__u_postmsg , !login);
    forum_enable(f.r__p_postmsg , !login);
    forum_enable(f.r__q_postmsg , !login);
    forum_enable(f.r__m_postmsg , !login);
}

function forum_enable(field,enable) {
    if (enable) {
        field.disabled=false;
        field.className = "forum_crth_input";
    } else {
        field.disabled = true;
        field.className = "forum_crth_input_d";
    }
}