Audio Jack with auto Toggle On/Off Primary Speaker circuit diagram NEEDED

In every mobile when we connect headphone through audio jack while playing music , it automatically turns off the primary speaker , I need a circuit diagram which will serve this purpose .

Pls help me .

May be you mean a socket like this :

Connection are show in the first picture :

1 - GND
2 - Right amp out
3 - Right speaker
4 - Left speaker
5 - Left amp out

Cheers, Ale.