();
  cp5 = new ControlP5(this);
  
  // add a horizontal sliders, the value of this slider will be linked
  // to variable 'sliderValue' 
  cp5.addSlider("sliderValue")
     .setPosition(100,50)
     .setRange(0,255)
     ;
  
  // create another slider with tick marks, now without
  // default value, the initial value will be set according to
  // the value of variable sliderTicks2 then.
  cp5.addSlider("sliderTicks1")
     .setPosition(100,140)
     .setSize(20,100)
     .setRange(0,255)
     .setNumberO