var fm={
 check_id: function(id) {
  if (id.match(/^[A-Za-z][A-Za-z0-9_-]{3,31}$/)) {
   return true;
  }
  return false;
 },
 check_email: function(email) {
  if (email.match(/^[A-Za-z0-9._-]+@[A-Za-z0-9._-]+\.(jp|com|net|biz|info|org|)$/)) {
   return true;
  }
  return false;
 },
 check_name: function(name) {
  if ((name.length<1) || (name.length>28)) {
   return false;
  }
  return true;
 }
}