/***********************************
　拡大表示
************************************/
/*var y = 0;

$(function(){
	$(window).scroll(function(){
		var y1 = document.documentElement.scrollTop;
		var y2 = document.body.scrollTop;
		if (y1>y2) {y=y1} else {y=y2}
		$(".zoom").css("top",y+"px");
	});
});
*/	
$(function(){
	$(window).scroll(function(){
		$(".zoom").css("top",getScrollPosition().y+"px");
	});
});

function clickZoom(){
	var w = $(window).width();
	var h = $(window).height();
	var imgW = $(".z-inside").width();
	var imgH = $(".z-inside").height();
	var sclTop = $(window).scrollTop();

	var imgLeft = (w-imgW)/2;
	var imgTop = sclTop+(h-imgH)/2;
	imgLeft = Math.floor(imgLeft);
	imgTop = Math.floor(imgTop);

	$(".z-inside").css("left", imgLeft);
	$(".z-inside").css("top", imgTop);

	$(".zoom").height(h);
	$(".zoom").css("top",getScrollPosition().y+"px");
	$(".zoom").css("opacity","0.7").fadeIn(200);
	//$(".z-inside").css("visibility","hidden").css("display","block");
	//$(".z-inside").css("display","block");
	$(".z-inside").fadeIn(2000);
}

/***********************************
　スクロール量を取得
************************************/
function getScrollPosition() {
	var obj = new Object();

	obj.x = document.documentElement.scrollLeft || document.body.scrollLeft;
	obj.y = document.documentElement.scrollTop  || document.body.scrollTop;

	return obj;
}


/***********************************
　拡大表示を非表示
************************************/
function clickZClose(){
	$(".zoom").css("display","none");
	$(".z-inside").css("display","none");
}