fadeOpacity.addRule('oR1', 1.0, 0.5, 40);
fadeOpacity.addRule('oR2', 0.0, 1.0, 50);
fadeOpacity.addRule('oR3', 0.3, 1.0, 40);
fadeOpacity.addRule('oR4', 1.0, 0.0, 40);