imgM01on = new Image(130,160);
imgM01on.src = "img/menu_img01_ovr.gif";
imgM01off = new Image(130,160);
imgM01off.src = "img/menu_img01.gif";

imgM02on = new Image(130,160);
imgM02on.src = "img/menu_img02_ovr.gif";
imgM02off = new Image(130,160);
imgM02off.src = "img/menu_img02.gif";

imgM03on = new Image(130,160);
imgM03on.src = "img/menu_img03_ovr.gif";
imgM03off = new Image(130,160);
imgM03off.src = "img/menu_img03.gif";

imgM04on = new Image(130,160);
imgM04on.src = "img/menu_img04_ovr.gif";
imgM04off = new Image(130,160);
imgM04off.src = "img/menu_img04.gif";

imgM05on = new Image(130,160);
imgM05on.src = "img/menu_img05_ovr.gif";
imgM05off = new Image(130,160);
imgM05off.src = "img/menu_img05.gif";

imgM06on = new Image(130,160);
imgM06on.src = "img/menu_img06_ovr.gif";
imgM06off = new Image(130,160);
imgM06off.src = "img/menu_img06.gif";

imgM07on = new Image(130,160);
imgM07on.src = "img/menu_img07_ovr.gif";
imgM07off = new Image(130,160);
imgM07off.src = "img/menu_img07.gif";

imgM08on = new Image(130,160);
imgM08on.src = "img/menu_img08_ovr.gif";
imgM08off = new Image(130,160);
imgM08off.src = "img/menu_img08.gif";

function imgon(imgname) {
        document[imgname].src = eval(imgname + "on.src");
}
function imgoff(imgname) {
        document[imgname].src = eval(imgname + "off.src");
}