toc1on = new Image();
toc1on.src = "/images/m1on.gif";
toc2on = new Image();
toc2on.src = "/images/m2on.gif";
toc3on = new Image();
toc3on.src = "/images/m3on.gif";
toc4on = new Image();
toc4on.src = "/images/m4on.gif";
toc5on = new Image();
toc5on.src = "/images/m5on.gif";
toc6on = new Image();
toc6on.src = "/images/m6on.gif";
toc7on = new Image();
toc7on.src = "/images/m7on.gif";
toc8on = new Image();
toc8on.src = "/images/m8on.gif";

toc1off = new Image();
toc1off.src = "/images/m1off.gif";
toc2off = new Image();
toc2off.src = "/images/m2off.gif";
toc3off = new Image();
toc3off.src = "/images/m3off.gif";
toc4off = new Image();
toc4off.src = "/images/m4off.gif";
toc5off = new Image();
toc5off.src = "/images/m5off.gif";
toc6off = new Image();
toc6off.src = "/images/m6off.gif";
toc7off = new Image();
toc7off.src = "/images/m7off.gif";
toc8off = new Image();
toc8off.src = "/images/m8off.gif";

function img_act(imgName) {
        imgOn = eval(imgName + "on.src");
        document [imgName].src = imgOn;
}

function img_inact(imgName) {
    imgOff = eval(imgName + "off.src");
    document [imgName].src = imgOff;
}