if (document.images) {

// INDEX
var img1on = new Image();
img1on.src = "./img/img/i_m001.jpg"; // ポイント時の画像
var img1off = new Image();
img1off.src = "./img/img/o_m001.jpg"; // 通常の画像

// PAGE1
var img2on = new Image();
img2on.src = "./img/img/i_m002.jpg";
var img2off = new Image();
img2off.src = "./img/img/o_m002.jpg";

// PAGE2
var img3on = new Image();
img3on.src = "./img/img/i_m003.jpg";
var img3off = new Image();
img3off.src = "./img/img/o_m003.jpg";

// PAGE3
var img4on = new Image();
img4on.src = "./img/img/i_m004.jpg";
var img4off = new Image();
img4off.src = "./img/img/o_m004.jpg";

// 設定終了

}


// ポイント時の処理 
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');
}

}