if (document.images) {

var img1on = new Image();
img1on.src = "image/japanpackageb2.gif";
var img1off = new Image();
img1off.src = "image/japanpackageb1.gif";

var img2on = new Image();
img2on.src = "image/jrpasst2.gif";
var img2off = new Image();
img2off.src = "image/jrpasst1.gif";

var img3on = new Image();
img3on.src = "image/accommt2.gif";
var img3off = new Image();
img3off.src = "image/accommt1.gif";

var img4on = new Image();
img4on.src = "image/dayt2.gif";
var img4off = new Image();
img4off.src = "image/dayt1.gif";

var img5on = new Image();
img5on.src = "image/insut2.gif";
var img5off = new Image();
img5off.src = "image/insut1.gif";

var img6on = new Image();
img6on.src = "image/transt2.gif";
var img6off = new Image();
img6off.src = "image/transt1.gif";

var img7on = new Image();
img7on.src = "image/infot2.gif";
var img7off = new Image();
img7off.src = "image/infot1.gif";

var img8on = new Image();
img8on.src = "image/ebrot2.gif";
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img8off.src = "image/ebrot1.gif";

var img9on = new Image();
img9on.src = "image/spect2.gif";
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img9off.src = "image/spect1.gif";

var img10on = new Image();
img10on.src = "image/termt2.gif";
var img10off = new Image();
img10off.src = "image/termt1.gif";

var img11on = new Image();
img11on.src = "image/mailt2.gif";
var img11off = new Image();
img11off.src = "image/mailt1.gif";

var img12on = new Image();
img12on.src = "image/aboutt2.gif";
var img12off = new Image();
img12off.src = "image/aboutt1.gif";

var img13on = new Image();
img13on.src = "image/homet2.gif";
var img13off = new Image();
img13off.src = "image/homet1.gif";

var img14on = new Image();
img14on.src = "image/jrb2.gif";
var img14off = new Image();
img14off.src = "image/jrb1.gif";

var img15on = new Image();
img15on.src = "image/astc2.gif";
var img15off = new Image();
img15off.src = "image/astc1.gif";

var img16on = new Image();
img16on.src = "image/bus2.gif";
var img16off = new Image();
img16off.src = "image/bus1.gif";

var img17on = new Image();
img17on.src = "image/skib2.gif";
var img17off = new Image();
img17off.src = "image/skib1.gif";

var img18on = new Image();
img18on.src = "image/jro2.gif";
var img18off = new Image();
img18off.src = "image/jro1.gif";

var img19on = new Image();
img19on.src = "image/getquote2.gif";
var img19off = new Image();
img19off.src = "image/getquote1.gif";

var img20on = new Image();
img20on.src = "image/routemap2.gif";
var img20off = new Image();
img20off.src = "image/routemap1.gif";


var img21on = new Image();
img21on.src = "image/onlineb.gif";
var img21off = new Image();
img21off.src = "image/onlinea.gif";


}

function On(id) {

if (document.images) {
document.images[id].src = eval(id + 'on.src');
}

}

function Off(id) {

if (document.images) {
document.images[id].src = eval(id + 'off.src');
}

}