function over(arg, on) {
    im = eval("m" + arg);
    im.style.background = on?"#054316":"";
}

function show(arg) {
    elem = eval("document.forms[0]." + arg);
    if (document.getElementById && !document.all)
        elem.visibility='visible';
    else if (document.layers)
        elem.visibility='show';
    else elem.style.visibility='visible';
}