if(document.images){

var onImgs = new Array();

onImgs["h"] = new Image(93,36);
onImgs["h"].src = "menu2/menu_h_on.gif";

onImgs["tp"] = new Image(94,36);
onImgs["tp"].src = "menu2/menu_tp_on.gif";

onImgs["fit"] = new Image(94,36);
onImgs["fit"].src = "menu2/menu_fit_on.gif";

onImgs["cgt"] = new Image(94,36);
onImgs["cgt"].src = "menu2/menu_cgt_on.gif";

onImgs["eh"] = new Image(94,36);
onImgs["eh"].src = "menu2/menu_eh_on.gif";

onImgs["ma"] = new Image(94,36);
onImgs["ma"].src = "menu2/menu_ma_on.gif";

onImgs["au"] = new Image(93,36);
onImgs["au"].src = "menu2/menu_au_on.gif";

var offImgs = new Array();

offImgs["h"] = new Image(93,36);
offImgs["h"].src = "menu2/menu_h_off.gif";

offImgs["tp"] = new Image(94,36);
offImgs["tp"].src = "menu2/menu_tp_off.gif";

offImgs["fit"] = new Image(94,36);
offImgs["fit"].src = "menu2/menu_fit_off.gif";

offImgs["cgt"] = new Image(94,36);
offImgs["cgt"].src = "menu2/menu_cgt_off.gif";

offImgs["eh"] = new Image(94,36);
offImgs["eh"].src = "menu2/menu_eh_off.gif";

offImgs["ma"] = new Image(94,36);
offImgs["ma"].src = "menu2/menu_ma_off.gif";

offImgs["au"] = new Image(93,36);
offImgs["au"].src = "menu2/menu_au_off.gif";

}

	
function imgOn(imgName) {
        if (document.images) {
            document.images[imgName].src = onImgs[imgName].src;
        }
}

function imgOff(imgName) {
        if (document.images) {
            document.images[imgName].src = offImgs[imgName].src;
        }
}