function showApproxPrice( mode, item, out ){
  if (document.getElementById) {
      str_rate = document.getElementById(item)[document.getElementById(item).selectedIndex].value;
      if( mode == 'detail' ){
          document.getElementById(out).innerHTML = str_rate + " ";
          
          document.getElementById(out+"_mess").style.display="inline";
          document.getElementById(out+"_mess2").style.display="inline";
      }
      else {
          document.getElementById(out).innerHTML = str_rate + " - ";
      }
    
  }
}