131   register: function(draggable) {  argument
141     this.drags.push(draggable);
144   unregister: function(draggable) {  argument
145     this.drags = this.drags.reject(function(d) { return d==draggable });
153   activate: function(draggable) {  argument
154     if(draggable.options.delay) {
158         Draggables.activeDraggable = draggable;
159       }.bind(this), draggable.options.delay);
162       this.activeDraggable = draggable;
207   notify: function(eventName, draggable, event) {  // 'onStart', 'onEnd', 'onDrag'  argument
210         if(o[eventName]) o[eventName](eventName, draggable, event);
212     if(draggable.options[eventName]) draggable.options[eventName](draggable, event);