function openMap (url, win_name, option) {

  if (option == 's') {
    option = "left=0,top=0,width=500,height=570,resizable=yes,scrollbars=yes,menubar=yes";
  } else if (option == 'l') {
    option = "left=0,top=0,width=800,height=650,resizable=yes,scrollbars=yes,menubar=yes";
  }

  window.open(url, win_name, option);

}