if (document.images) {
	for (i = 1; i < 17; i++)
	{
		var img1on = new Image();
		img1on.src = "images/mark2.gif"; // ポイント時の画像
		var img1off = new Image();
		img1off.src = "images/mark1.gif"; // 通常の画像
	
		var img2on = new Image();
		img2on.src = "images/mark2.gif";
		var img2off = new Image();
		img2off.src = "images/mark1.gif";
	
		var img3on = new Image();
		img3on.src = "images/mark2.gif";
		var img3off = new Image();
		img3off.src = "images/mark1.gif";
	
		var img4on = new Image();
		img4on.src = "images/mark2.gif";
		var img4off = new Image();
		img4off.src = "images/mark1.gif";
	
		var img5on = new Image();
		img5on.src = "images/mark2.gif";
		var img5off = new Image();
		img5off.src = "images/mark1.gif";
	
		var img6on = new Image();
		img6on.src = "images/mark2.gif";
		var img6off = new Image();
		img6off.src = "images/mark1.gif";
	
		var img7on = new Image();
		img7on.src = "images/mark2.gif";
		var img7off = new Image();
		img7off.src = "images/mark1.gif";
	
		var img8on = new Image();
		img8on.src = "images/mark2.gif";
		var img8off = new Image();
		img8off.src = "images/mark1.gif";
	
		var img9on = new Image();
		img9on.src = "images/mark2.gif";
		var img9off = new Image();
		img9off.src = "images/mark1.gif";
	
		var img10on = new Image();
		img10on.src = "images/mark2.gif";
		var img10off = new Image();
		img10off.src = "images/mark1.gif";
	
		var img11on = new Image();
		img11on.src = "images/mark2.gif";
		var img11off = new Image();
		img11off.src = "images/mark1.gif";
	
		var img12on = new Image();
		img12on.src = "images/mark2.gif";
		var img12off = new Image();
		img12off.src = "images/mark1.gif";
	
		var img13on = new Image();
		img13on.src = "images/mark2.gif";
		var img13off = new Image();
		img13off.src = "images/mark1.gif";
	
		var img14on = new Image();
		img14on.src = "images/mark2.gif";
		var img14off = new Image();
		img14off.src = "images/mark1.gif";
	
		var img15on = new Image();
		img15on.src = "images/mark2.gif";
		var img15off = new Image();
		img15off.src = "images/mark1.gif";
	
		var img16on = new Image();
		img16on.src = "images/mark2.gif";
		var img16off = new Image();
		img16off.src = "images/mark1.gif";
	}
}

function On(name) {
	if (document.images) {
		document.images[name].src = eval(name + 'on.src');
	}
}

// 放した時の処理
function Off(name) {
	if (document.images) {
		document.images[name].src = eval(name + 'off.src');
	}
}