var isns=(navigator.appName=="Netscape")
var label=0
var test=''
var oldlay=''
layref=isns? "document." : "document.all."
attref=isns? ".":".style."
function menu(layid) {
 if (test!='')
  clearInterval(test)
 if (oldlay != '')
  eval (layref+oldlay+attref+"visibility='hidden'")
 eval(layref+layid+attref+"visibility='visible'")
 oldlay=layid
 test=setInterval("dotest()",500)
}

function dotest() {
if (label==0) {
eval (layref+oldlay+attref+"visibility='hidden'")
oldlay=''
clearInterval(test)
}
}