fixed.js

gistfile1.js

var Foo;
var __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };
Foo = (function() {
  function Foo() {}
  Foo.prototype.init = function() {
    var lalala = this;
    $("#submitButton").click(__bind(function(event) {
      // throws an error "HTMLDocument element does not have property onSubmitButtonClicked
      return this.onSubmitButtonClicked(event);
    }, lalala));
  };
  Foo.prototype.onSubmitButtonClicked = function(event) {}
})();