//PreLoad Images
	office_a1 = new Image();
	office_a1.src = "images/office_a1.jpg";
	office_a2 = new Image();
	office_a2.src = "images/office_a2.jpg";
	office_b1 = new Image();
	office_b1.src = "images/office_b1.jpg";
	office_b2 = new Image();
	office_b2.src = "images/office_b2.jpg";
	office_c1 = new Image();
	office_c1.src = "images/office_c1.jpg";
	office_c2 = new Image();
	office_c2.src = "images/office_c2.jpg";