/* backToTop */
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);
  }
}

/*右カラムランキング表示*/
$(function(){
	$("#subArea .popular-posts ul li:nth-child(1)").addClass("first");
	$("#subArea .popular-posts ul li:nth-child(2)").addClass("second");
	$("#subArea .popular-posts ul li:nth-child(3)").addClass("third");
	$("#subArea .popular-posts ul li:nth-child(4)").addClass("fourth");
	$("#subArea .popular-posts ul li:nth-child(5)").addClass("fifth");
});