function show_suburbs(theburb){
  //alert(theburb);
  // mcronkhite 07/29/09
  // change the following lines number to match the ID of the state this should work for.
  if(theburb == 18){
    $('suburb_hide').style.display = 'block';
  } else {
    $('suburb_hide').style.display = 'none';
  }
}