if (document.images) { 


// 設定開始（使用する画像を設定してください） 

// index
var img1on = new Image();
img1on.src = "image/menu01_on.jpg"; // ポイント時の画像
var img1off = new Image();
img1off.src = "image/menu01.jpg"; // 通常の画像

// top
var img2on = new Image();
img2on.src = "image/menu02_on.jpg";
var img2off = new Image();
img2off.src = "image/menu02.jpg";

// news
var img3on = new Image();
img3on.src = "image/menu03_on.jpg";
var img3off = new Image();
img3off.src = "image/menu03.jpg";

// about
var img4on = new Image();
img4on.src = "image/menu04_on.jpg";
var img4off = new Image();
img4off.src = "image/menu04.jpg";

// service
var img5on = new Image();
img5on.src = "image/menu05_on.jpg";
var img5off = new Image();
img5off.src = "image/menu05.jpg";

// member
var img6on = new Image();
img6on.src = "image/menu06_on.jpg";
var img6off = new Image();
img6off.src = "image/menu06.jpg";

// event
var img7on = new Image();
img7on.src = "image/menu07_on.jpg";
var img7off = new Image();
img7off.src = "image/menu07.jpg";

// contact
var img8on = new Image();
img8on.src = "image/menu08_on.jpg";
var img8off = new Image();
img8off.src = "image/menu08.jpg";

// map
var img9on = new Image();
img9on.src = "image/menu09_on.jpg";
var img9off = new Image();
img9off.src = "image/menu09.jpg";

// staff
var img10on = new Image();
img10on.src = "image/menu12_on.jpg";
var img10off = new Image();
img10off.src = "image/menu12.jpg";

// link
var img11on = new Image();
img11on.src = "image/menu11_on.jpg";
var img11off = new Image();
img11off.src = "image/menu11.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'); 
} 

}