wrap a function that would do it again easily.

doItAgain.js

function wrapper(cb){
  var args, that;

  function doItAgain(){
    cb.apply(that, args);
  }

  function execute(){
    that = this;
    args = [].slice.call(arguments, 0);
    args.push(doItAgain);
    doItAgain();
  }

  return execute;
}