function MO(v){
    id="menu"+v; id2="box"+v;
    if(document.all){
        obj=document.all[id].style;
        obj2=document.all[id2].style;
    }else if(document.layers){
        obj=document.layers[id];
        obj2=document.layers[id2];
    }else if(document.getElementById){
        obj=document.getElementById(id).style;
        obj2=document.getElementById(id2).style;
    }
    obj.visibility="visible";
}
function MT(v){
    id="menu"+v;
    id2="box"+v;
    if(document.all){
        obj=document.all[id].style;
        obj2=document.all[id2].style;
    }else if(document.layers){
        obj=document.layers[id];
        obj2=document.layers[id2];
    }else if(document.getElementById){
        obj=document.getElementById(id).style;
        obj2=document.getElementById(id2).style;
    }
    obj.visibility="hidden";
    obj2.backgroundColor="";
}