browser = (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 3 )) || ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4 )))

function picin(n){
if (browser) {
 newsrc ="menu/"+n+"a.gif";
 document.images[("i"+n)].src = newsrc;
}
}

function picout(n){
if (browser) {
 newsrc ="menu/"+n+".gif";
 document.images[("i"+n)].src = newsrc;
}
}