When John Cage was asked about his music, "What is its purpose?" he answered with the three words, "No purpose,... sound." -- William L. Martens, Ph.D. Associate Professor Multimedia Systems Lab URL: http://www.u-aizu.ac.jp/~wlm University of Aizu TEL: [+81](242)37-2791 Aizu-Wakamatsu 965-8580, Japan FAX: [+81](242)37-2731