if (navigator.appVersion > "3") {
    img0 = new Image(); img0.src  = 'img/home.gif';
    img1 = new Image(); img1.src  = 'img/home2.gif';
    img2 = new Image(); img2.src  = 'img/a.gif';
    img3 = new Image(); img3.src  = 'img/a2.gif';
    img4 = new Image(); img4.src  = 'img/b.gif';
    img5 = new Image(); img5.src  = 'img/b2.gif';
    img6 = new Image(); img6.src  = 'img/c.gif';
    img7 = new Image(); img7.src  = 'img/c2.gif';
    img8 = new Image(); img8.src  = 'img/d.gif';
    img9 = new Image(); img9.src  = 'img/d2.gif';
    img10 = new Image(); img10.src  = 'img/e.gif';
    img11 = new Image(); img11.src  = 'img/e2.gif';
    img12 = new Image(); img12.src  = 'img/f.gif';
    img13 = new Image(); img13.src  = 'img/f2.gif';
    img14 = new Image(); img14.src  = 'img/g.gif';
    img15 = new Image(); img15.src  = 'img/g2.gif';
    img16 = new Image(); img16.src  = 'img/heiwa.gif';
    img17 = new Image(); img17.src  = 'img/heiwa2.gif';
    img18 = new Image(); img18.src  = 'img/kango.gif';
    img19 = new Image(); img19.src  = 'img/kango2.gif';
    img20 = new Image(); img20.src  = 'img/h.gif';
    img21 = new Image(); img21.src  = 'img/h2.gif';
    img22 = new Image(); img22.src  = 'img/i.gif';
    img23 = new Image(); img23.src  = 'img/i2.gif';
}
function imgChange(imgName,imgNum) {
    if (navigator.appVersion > "3") {
        document.images[imgName].src = eval(imgNum + '.src');
    }
}