numdivs=8

IE5=NN4=NN6=false
if(document.all)IE5=true
else if(document.layers)NN4=true
else if(document.getElementById)NN6=true

function init() {
  showDiv(0)
}
function showDiv( which ) {
  for(i=0;i<numdivs;i++) {
    if(NN4) eval("document.div"+i+".visibility='hidden'")
    if(IE5) eval("document.all.div"+i+".style.visibility='hidden'")
    if(NN6) eval("document.getElementById('div"+i+"').style.visibility='hidden'")
  }
  if(NN4) eval("document.div"+which+".visibility='visible'")
  if(IE5) eval("document.all.div"+which+".style.visibility='visible'")
  if(NN6) eval("document.getElementById('div"+which+"').style.visibility='visible'")
}