function RND(tmpl, ns) {
  var fn = function(w, g) {
    g = g.split("|");
    var cnt = ns[g[0]];
    for(var i=1; i < g.length; ++i)
      cnt = eval(g[i])(cnt);
    return cnt || w;
  };
  return tmpl.replace(/%{([A-Za-z0-9_|\.]+)}/g, fn);
}