function CheckAvailability() {
  if (confirm("This will open a new page and any data other then arrival date and departure date will be lost\n\nClick 'OK' if you wish to leave this page and check the availability!")) {
    sb=1;
    document.getElementById('reserve_inquire_form').action='/availability/index.phtm';
    document.getElementById('reserve_inquire_form').submit();
  } else {
   sb=0; 
  }
  return sb;
}