Potentiometer vs Rotary Encoder

Thank you so much All!!!

I do not know how to draw wiring... but, I can explain detail wiring.

I am using Arduino Duemilanove and Using USB as a power.

Digital Output 4,5,6,7 connect to CD4067Be control pin and 16 potentiometer(which is connected to ground and power) connect to each MUX input.

Mux output connect to Analog Pin 0.

I am using 10K potentiometer. It is my first Arduino project and harder than I thought. Fun, Though~

Thank you in Advance.