function show(inputData) {
  var objID=document.getElementById( "layer_" + inputData );
  var buttonID=document.getElementById( "button_" + inputData );

  if(objID.className=='contents-listsub') {
    objID.style.display='block';
    objID.className='open';
    buttonID.src='/heishin/vfs/images/close.gif';

  }else{
    objID.style.display='none';
    objID.className='contents-listsub';
    buttonID.src='/heishin/vfs/images/open.gif';
  }
}