(function () {
  // globals
  var $ = jQuery;
  var lib = fff;

  var stage;
  var loglevel;
  // set devel as default stage
  stage = lib.stage || 'devel';
  loglevel = lib.loglevel || 'info';
  lib.info = function (text) {
    if ((loglevel == 'info') ) {
      log('Info: '+text);
    }
  };
  lib.warn = function (text) {
    if ((loglevel == 'info') || (loglevel == 'warn') ) {
      alertText('Warn: '+text);
    }
  };
  lib.error = function (text) {
    if ((loglevel == 'info') || (loglevel == 'warn') || (loglevel == 'error')) {
      alertText('Error: '+text);
    }
  };
  function log(text) {
    console.log(text);
  }
  function alertText(text) {
    if (stage == 'devel') {
      alert(text);
    } else {
      console.log(text);
    }
  }
})()