b1 = new Image();
b1.src = "images/b1_on.jpg";
b2 = new Image();
b2.src = "images/b2_on.jpg";
b3 = new Image();
b3.src = "images/b3_on.jpg";
b4 = new Image();
b4.src = "images/b4_on.jpg";
b5 = new Image();
b5.src = "images/b5_on.jpg";
b6 = new Image();
b6.src = "images/b6_on.jpg";
b7 = new Image();
b7.src = "images/b7_on.jpg";
b8 = new Image();
b8.src = "images/b8_on.jpg";
b9 = new Image();
b9.src = "images/b9_on.jpg";

b1m = new Image();
b1m.src = "images/b1m_on.jpg";
b2m = new Image();
b2m.src = "images/b2m_on.jpg";
b3m = new Image();
b3m.src = "images/b3m_on.jpg";
b4m = new Image();
b4m.src = "images/b4m_on.jpg";
b5m = new Image();
b5m.src = "images/b5m_on.jpg";
b6m = new Image();
b6m.src = "images/b6m_on.jpg";
b7m = new Image();
b7m.src = "images/b7m_on.jpg";
b8m = new Image();
b8m.src = "images/b8m_on.jpg";
b9m = new Image();
b9m.src = "images/b9m_on.jpg";