         campus = new Array();  // global variable         campus[0] = new Image();         campus[0][0] = "images/fall_0_000x000.png";         campus[0][0] = "000";         campus[0][0] = "000";         campus[0] = new Image();         campus[0][0] = "images/winter_0_000x000.png";         campus[0][0] = "000";         campus[0][0] = "000";         campus[0] = new Image();         campus[0][0] = "images/spring_0_000x000.png";         campus[0][0] = "000";         campus[0][0] = "000";         campus[0] = new Image();         campus[0][0] = "images/summer_0_000x000.png";         campus[0][0] = "000";         campus[0][0] = "000";     