if(document.images){
var img01_on=new Image();
var img01_off=new Image();

var img02_on=new Image();
var img02_off=new Image();

var img03_on=new Image();
var img03_off=new Image();

var img04_on=new Image();
var img04_off=new Image();

var img05_on=new Image();
var img05_off=new Image();

var img06_on=new Image();
var img06_off=new Image();

var img07_on=new Image();
var img07_off=new Image();

var img08_on=new Image();
var img08_off=new Image();

var img09_on=new Image();
var img09_off=new Image();

var img10_on=new Image();
var img10_off=new Image();

}
//画像の割り当て　プリロード
function preLoad(){
img01_on.src="../img/menu/new2.gif";
img01_off.src="../img/menu/new.gif";

img02_on.src="../img/menu/shop2.gif";
img02_off.src="../img/menu/shop.gif";

img03_on.src="../img/menu/seisaku2.gif";
img03_off.src="../img/menu/seisaku.gif";

img04_on.src="../img/menu/repo2.gif";
img04_off.src="../img/menu/repo.gif";

img05_on.src="../img/menu/web_shop2.gif";
img05_off.src="../img/menu/web_shop.gif";

img06_on.src="../img/menu/staff2.gif";
img06_off.src="../img/menu/staff.gif";

img07_on.src="../img/menu/link2.gif";
img07_off.src="../img/menu/link.gif";

img08_on.src="../img/menu/bbs2.gif";
img08_off.src="../img/menu/bbs.gif";

img09_on.src="../img/menu/wall_paper2.gif";
img09_off.src="../img/menu/wall_paper.gif";

img10_on.src="../img/menu/top2.gif";
img10_off.src="../img/menu/top.gif";

}
//マウスカーソルが載ったときの処理
function rollon(img){
imgon=eval(img+"_on.src");
if ((document.images)&&(imgon)){
document.images[img].src=eval(img+"_on.src");
}
}
//マウスカーソルが外れたときの処理
function rolloff(img){
imgoff=eval(img+"_off.src")
if ((document.images)&&(imgoff)){
document.images[img].src=eval(img+"_off.src");
}
}