// a sample logging function to be added to a callbacks list
                                      
                                    
                                  
                                  

                                    

                                        var foo = function( value ) {
                                    
                                  
                                  

                                    

                                          console.log( "foo:" + value );
                                    
                                  
                                  

                                    

                                        };
                                    
                                  
                                  

                                    

                                       
                                    
                                  
                                  

                                    

                                        var callbacks = $.Callbacks();
                                    
                                  
                                  

                                    

                                       
                                    
                                  
                                  

                                    

                                        // add the logging function to the callback list
                                    
                                  
                                  

                                    

                                        callbacks.add( foo );
                                    
                                  
                                  

                                    

                                       
                                    
                                  
                                  

                                    

                                        // fire the items on the list, passing an argument
                                    
                                  
                                  

                                    

                                        callbacks.fire( "hello" );
                                    
                                  
                                  

                                    

                                        // outputs "foo: hello"
                                    
                                  
                                  

                                    

                                       
                                    
                                  
                                  

                                    

                                        // disable the callbacks list
                                    
                                  
                                  

                                    

                                        callbacks.disable();
                                    
                                  
                                  

                                    

                                       
                                    
                                  
                                  

                                    

                                        // test the disabled state of the list
                                    
                                  
                                  

                                    

                                        console.log ( callbacks.disabled() );
                                    
                                  
                                  

                                    

                                        // outputs: true