function seltab(bpref, hpref, id_max, selected) {
  if (! document.getElementById) return;
  for (i = 0; i <= id_max; i++) {
    if (! document.getElementById(bpref + i)) continue;
    if (i == selected) {
      document.getElementById(bpref + i).style.visibility = "visible";
      document.getElementById(bpref + i).style.position = "";
      document.getElementById(hpref + i).className = "open";
    } else {
      document.getElementById(bpref + i).style.visibility = "hidden";
      document.getElementById(bpref + i).style.position = "absolute";
      document.getElementById(hpref + i).className = "close";
    }
  }
}


function ChangeTab(tabname) {
   // 全部消す
   document.getElementById('hotel1').style.display = 'none';
   document.getElementById('hotel2').style.display = 'none';
   document.getElementById('hotel3').style.display = 'none';
   document.getElementById('hotel4').style.display = 'none';
   document.getElementById('hotel5').style.display = 'none';
   document.getElementById('hotel6').style.display = 'none';
   document.getElementById('hotel7').style.display = 'none';
   document.getElementById('hotel8').style.display = 'none';
   document.getElementById('hotel9').style.display = 'none';
   document.getElementById('hotel10').style.display = 'none';
   document.getElementById('hotel11').style.display = 'none';
   document.getElementById('hotel12').style.display = 'none';
   document.getElementById('hotel13').style.display = 'none';

   

   // 指定箇所のみ表示
   document.getElementById(tabname).style.display = 'block';
}