whole_func_string: function(obj, event, callback) {
  		// Use jQuery to handle DOM events.
  		if(underscore.isElement(obj) && $){ return $(obj).off(event, callback); }
  
  		// Use internal handler for pubsub
  		if(this.isString(obj)) { event = obj; obj = this; }
  
  		// If there aren't any handlers for this event, don't do anything.
  		if(this.isObject(obj.__event_handlers) && event in obj.__event_handlers) {
  			obj.__event_handlers[event].remove(callback);
  		}
  		return this;
  	}
func_code_string: function(obj, event, callback) {
  		// Use jQuery to handle DOM events.
  		if(underscore.isElement(obj) && $){ return $(obj).off(event, callback); }
  
  		// Use internal handler for pubsub
  		if(this.isString(obj)) { event = obj; obj = this; }
  
  		// If there aren't any handlers for this event, don't do anything.
  		if(this.isObject(obj.__event_handlers) && event in obj.__event_handlers) {
  			obj.__event_handlers[event].remove(callback);
  		}
  		return this;
  	}
func_documentation_string: ### off*([object, ]event, callback)* Remove a certain callback from an event chain.