         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";      