code: function(start_url) {
        if (this.isRunning()) { return false; }
        var app = this;
  
        // actually bind all the listeners
        $.each(this.listeners.toHash(), function(name, callbacks) {
          $.each(callbacks, function(i, listener_callback) {
            app._listen(name, listener_callback);
          });
        });
  
        this.trigger('run', {start_url: start_url});
        this._running = true;
        // set last location
        this.last_location = null;
        if (this.getLocation() == '' && typeof start_url != 'undefined') {
          this.setLocation(start_url);
        }
        // check url
        this._checkLocation();
        this._location_proxy.bind();
        this.bind('location-changed', function() {
          app._checkLocation();
        });
  
        // bind to submit to capture post/put/delete routes
        /*
        this.bind('submit', function(e) {
          var returned = app._checkFormSubmission($(e.target).closest('form'));
          return (returned === false) ? e.preventDefault() : false;
        });
        */
  
        // bind unload to body unload
        $(window).bind('beforeunload', function() {
          app.unload();
        });
  
        // trigger html changed
        return this.trigger('changed');
      }
docs: Actually starts the application's lifecycle. `run()` should be invoked within a document.ready block to ensure the DOM exists before binding events, etc.  ### Example  var app = $.sammy(function() { ... }); // your application $(function() { // document.ready app.run(); });  ### Arguments  * `start_url` Optionally, a String can be passed which the App will redirect to after the events/routes have been bound.