// マウスを上に置くと画像を入れ替える(画像を先に読み込む)
// 入れ替える画像
img = new Array(
	 "/img/nv/img_nv0.jpg"
	,"/img/nv/img_nv0_on.jpg"
	,"/img/nv/img_nv1.jpg"
	,"/img/nv/img_nv1_on.jpg"
	,"/img/nv/img_nv2.jpg"
	,"/img/nv/img_nv2_on.jpg"
	,"/img/nv/img_nv3.jpg"
	,"/img/nv/img_nv3_on.jpg"
	,"/img/nv/img_nv4.jpg"
	,"/img/nv/img_nv4_on.jpg"
	,"/img/nv/img_nv5.jpg"
	,"/img/nv/img_nv5_on.jpg"
	);
bfImg = new Array();
for(i=0; i<img.length; i++) {
	bfImg[i] = new Image();
	bfImg[i].src = img[i];
}