function backToTop() {
  var x1 = x2 = x3 = 0;
  var y1 = y2 = y3 = 0;
  if (document.documentElement) {
      x1 = document.documentElement.scrollLeft || 0;
      y1 = document.documentElement.scrollTop || 0;
  }
  if (document.body) {
      x2 = document.body.scrollLeft || 0;
      y2 = document.body.scrollTop || 0;
  }
  x3 = window.scrollX || 0;
  y3 = window.scrollY || 0;
  var x = Math.max(x1, Math.max(x2, x3));
  var y = Math.max(y1, Math.max(y2, y3));
  window.scrollTo(Math.floor(x / 2), Math.floor(y / 2));
  if (x > 0 || y > 0) {
      window.setTimeout("backToTop()", 25);
  }
}


function closeWin(){
    window.close();
}


/************************************************
	Description: パーティーレポート
************************************************/
function openP001(){
	window.open("data/001.html","",'resizable=no,scrollbars=yes,menubar=no,directories=no,status=no,location=no,width=700,height=640');
}

function openP002(){
	window.open("data/002.html","",'resizable=no,scrollbars=yes,menubar=no,directories=no,status=no,location=no,width=700,height=640');
}

function openP003(){
	window.open("data/003.html","",'resizable=no,scrollbars=yes,menubar=no,directories=no,status=no,location=no,width=700,height=640');
}

/************************************************
	Description: アイテム
************************************************/
function open001(){
	window.open("hibiya_kadan.html","",'resizable=no,scrollbars=yes,menubar=no,directories=no,status=no,location=no,width=680,height=520');
}

function open002(){
	window.open("takami.html","",'resizable=no,scrollbars=yes,menubar=no,directories=no,status=no,location=no,width=680,height=520');
}

function open003(){
	window.open("yamano.html","",'resizable=no,scrollbars=yes,menubar=no,directories=no,status=no,location=no,width=680,height=520');
}
/************************************************
	Description: 見積もり
************************************************/
function openMitsumori(){
	window.open("http://www.granvia-wedding.com/contents/banquet/mitsumori.html","",'resizable=no,scrollbars=yes,menubar=no,directories=no,status=no,location=no,width=720,height=700');
}

/************************************************
	Description: 10年後の花嫁
************************************************/
function open10years(){
	window.open("ten_years_later/index.html","",'resizable=no,scrollbars=no,menubar=no,directories=no,status=no,location=no,width=1024,height=650');
}