/*ページスクロール*/

/*
$(function() {

    var offset = $("#pageTop").offset();
	$("#pageTop").css('opacity', 0);
	
    $(window).scroll(function() {
    
        if ($(window).scrollTop() > offset.top) {
        
            $("#pageTop").stop().animate({
            
                marginTop: ($(window).scrollTop() - offset.top) + ($(window).height() - 140),
				opacity: 1
            
            });
        
        } else {
        
            $("#pageTop").stop().animate({
            
                marginTop: 0,
				opacity: 0
            
            });
        
        }
        
            
    });

});
*/

function pagetop() {
  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("pagetop()", 50);
  }
}



/*
** ロールオーバー
*/


function smartRollover() {
	if(document.getElementsByTagName) {
		var images = document.getElementsByTagName("img");

		for(var i=0; i < images.length; i++) {
			if(images[i].getAttribute("src").match("_off."))
			{
				images[i].onmouseover = function() {
					this.setAttribute("src", this.getAttribute("src").replace("_off.", "_on."));
				}
				images[i].onmouseout = function() {
					this.setAttribute("src", this.getAttribute("src").replace("_on.", "_off."));
				}
			}
		}
	}
}

if(window.addEventListener) {
	window.addEventListener("load", smartRollover, false);
}
else if(window.attachEvent) {
	window.attachEvent("onload", smartRollover);
}











(function($) {
	$(function() {
		$.hamFunction.opacityRollOver({
			fnClass:'.over',	/*適応させる部分の変更*/
			opacityDef:1.0,		/*デフォルトの透明度指定*/
			fadeTime:150,		/*フェードの時間指定*/
			opacityOn:0.5,		/*マウスオーバー時の透明度の指定*/
			opacityOff:1.0		/*マウスアウト時の最初の透明度の指定*/
		});
	});
	
	$.hamFunction = {
		opacityRollOver: function(options){
			var c = $.extend(options);
			$(c.fnClass).each(function(){
				$(this).css('opacity',c.opacityDef).hover(
					function(){
        				$(this).fadeTo(c.fadeTime,c.opacityOn);
        			},
    				function(){
        				$(this).fadeTo(c.fadeTime,c.opacityOff);
   					}
   				)
			});
		}
	};
})(jQuery);