//fades layer in
function fadeIn(id, start) {
    var ie5  = (document.all && document.getElementById);
    var ns6 = (!document.all && document.getElementById);
    if(start < 100){
        start +=4;
        if(ie5) document.getElementById(id).filters.alpha.opacity = start;
        if(ns6) document.getElementById(id).style.MozOpacity = start/100;
        setTimeout("fadeIn('"+id+"', "+start+")", 1);
    }
    return true;
}

//fades layer OUT
function fadeOut(id, start) {
    var ie5  = (document.all && document.getElementById);
    var ns6 = (!document.all && document.getElementById);
    if(start > 0){
        start -=4;
        if(ie5) document.getElementById(id).filters.alpha.opacity = start;
        if(ns6) document.getElementById(id).style.MozOpacity = start/100;
        setTimeout("fadeIn('"+id+"', "+start+")", 1);
    }
    return true;
}