function checkEmail(fld) {

  var entry = fld.value;

  var yahoo = (entry.indexOf("hotmail") > 1);

  if (yahoo) {
    return confirm("IMPORTANT: Hotmail Users\r\n\r\nMany Hotmail users report they do not receive their E-mails from us.\r\n\r\nPress CANCEL to enter an alternative E-mail (recommended)\r\n\r\nPress OK to contine with your Hotmail E-mail\r\n\r\n");
  }
}