var nr_pics = 9; function random_pic(a_window) { var choice = intRandLim(1,4); if (choice == 1) { var pic = intRandLim(1,nr_pics); var pic_name = "birky"+pic+".jpg"; a_window.document.open(); a_window.document.writeln(""); a_window.document.writeln(""); a_window.document.writeln("

"); a_window.document.writeln("\n"); a_window.document.close(); } }