public SScrollBar(int orientation) { this(orientation, 0, 10, 0, 100);
public SScrollBar(int orientation, int value, int extent, int min, int max) { super(value, extent, min, max);  for ( int i=0; i<clickables.length; i++ ) { clickables[i] = new SClickable(); clickables[i].setEventTarget(this); }  setOrientation(orientation);
    public SScrollBar(int orientation) {        this(orientation, 0, 10, 0, 100);    }