function update_message_body()
  // This function composes an e-mail message using the contents of 
  // another form on the same page.
  {
    var FullName = document.SubmissionForm.FullName.value;
    var Email = document.SubmissionForm.Email.value;
    var Company = document.SubmissionForm.Company.value;
    var Comments = document.SubmissionForm.Comments.value;
    var CurrentDate = new Date();

    document.ProxyForm.MessageBody.value = "\n\n" + "-= Start of Message =-" + "\n\n"
                                            + "Reuseable Code Library Submission" + "\n\n"
                                            + "Time received: " + CurrentDate + "\n\n"
                                            + "Name: " + FullName + "\n\n"
                                            + "Email: " + Email + "\n\n"
                                            + "Company: " + Company + "\n\n"
                                            + "Message: " + Coments + "-= End of Message =-";
    return true;
  }