imga = new Image();
imga.src = "imgletter/a.gif";
imgaon = new Image();
imgaon.src = "imgletter/aon.gif";

imgb = new Image();
imgb.src = "imgletter/b.gif";
imgbon = new Image();
imgbon.src = "imgletter/bon.gif";

imgc = new Image();
imgc.src = "imgletter/c.gif";
imgcon = new Image();
imgcon.src = "imgletter/con2.gif";

imgd = new Image();
imgd.src = "imgletter/d.gif";
imgdon = new Image();
imgdon.src = "imgletter/don.gif";

imge = new Image();
imge.src = "imgletter/e.gif";
imgeon = new Image();
imgeon.src = "imgletter/eon.gif";

imgf = new Image();
imgf.src = "imgletter/f.gif";
imgfon = new Image();
imgfon.src = "imgletter/fon.gif";

imgg = new Image();
imgg.src = "imgletter/g.gif";
imggon = new Image();
imggon.src = "imgletter/gon.gif";

imgh = new Image();
imgh.src = "imgletter/h.gif";
imghon = new Image();
imghon.src = "imgletter/hon.gif";

imgi = new Image();
imgi.src = "imgletter/i.gif";
imgion = new Image();
imgion.src = "imgletter/ion.gif";

imgj = new Image();
imgj.src = "imgletter/j.gif";
imgjon = new Image();
imgjon.src = "imgletter/jon.gif";

imgk = new Image();
imgk.src = "imgletter/k.gif";
imgkon = new Image();
imgkon.src = "imgletter/kon.gif";

imgl = new Image();
imgl.src = "imgletter/l.gif";
imglon = new Image();
imglon.src = "imgletter/lon.gif";

imgm = new Image();
imgm.src = "imgletter/m.gif";
imgmon = new Image();
imgmon.src = "imgletter/mon.gif";

imgn = new Image();
imgn.src = "imgletter/n.gif";
imgnon = new Image();
imgnon.src = "imgletter/non.gif";

imgo = new Image();
imgo.src = "imgletter/o.gif";
imgoon = new Image();
imgoon.src = "imgletter/oon.gif";

imgp = new Image();
imgp.src = "imgletter/p.gif";
imgpon = new Image();
imgpon.src = "imgletter/pon.gif";

imgq = new Image();
imgq.src = "imgletter/q.gif";
imgqon = new Image();
imgqon.src = "imgletter/qon.gif";

imgr = new Image();
imgr.src = "imgletter/r.gif";
imgron = new Image();
imgron.src = "imgletter/ron.gif";

imgs = new Image();
imgs.src = "imgletter/s.gif";
imgson = new Image();
imgson.src = "imgletter/son.gif";

imgt = new Image();
imgt.src = "imgletter/t.gif";
imgton = new Image();
imgton.src = "imgletter/ton.gif";

imgu = new Image();
imgu.src = "imgletter/u.gif";
imguon = new Image();
imguon.src = "imgletter/uon.gif";

imgv = new Image();
imgv.src = "imgletter/v.gif";
imgvon = new Image();
imgvon.src = "imgletter/von.gif";

imgw = new Image();
imgw.src = "imgletter/w.gif";
imgwon = new Image();
imgwon.src = "imgletter/won.gif";

imgx = new Image();
imgx.src = "imgletter/x.gif";
imgxon = new Image();
imgxon.src = "imgletter/xon.gif";

imgy = new Image();
imgy.src = "imgletter/y.gif";
imgyon = new Image();
imgyon.src = "imgletter/yon.gif";

imgz = new Image();
imgz.src = "imgletter/z.gif";
imgzon = new Image();
imgzon.src = "imgletter/zon.gif";

img0 = new Image();
img0.src = "imgletter/0.gif";
img0on = new Image();
img0on.src = "imgletter/0on.gif";

img1 = new Image();
img1.src = "imgletter/1.gif";
img1on = new Image();
img1on.src = "imgletter/1on.gif";

img2 = new Image();
img2.src = "imgletter/2.gif";
img2on = new Image();
img2on.src = "imgletter/2on.gif";

img3 = new Image();
img3.src = "imgletter/3.gif";
img3on = new Image();
img3on.src = "imgletter/3on.gif";

img4 = new Image();
img4.src = "imgletter/4.gif";
img4on = new Image();
img4on.src = "imgletter/4on.gif";

img5 = new Image();
img5.src = "imgletter/5.gif";
img5on = new Image();
img5on.src = "imgletter/5on.gif";

img6 = new Image();
img6.src = "imgletter/6.gif";
img6on = new Image();
img6on.src = "imgletter/6on.gif";

img7 = new Image();
img7.src = "imgletter/7.gif";
img7on = new Image();
img7on.src = "imgletter/7on.gif";

img8 = new Image();
img8.src = "imgletter/8.gif";
img8on = new Image();
img8on.src = "imgletter/8on.gif";

img9 = new Image();
img9.src = "imgletter/9.gif";
img9on = new Image();
img9on.src = "imgletter/9on.gif";
/*
musica = new Image();
musica.src = "img/musica.gif";
musicaon = new Image();
musicaon.src = "img/musicaon.gif";
*/
function on(name)   {
        document[name].src = eval(name + "on.src");
}
function off(name)  {
        document[name].src = eval(name + ".src");
}
/*
function on2(name)   {
        document[name].src = eval("musicaon.src");
}
function off2(name)  {
        document[name].src = eval("musica.src");
}
*/