var browserType;

if (document.layers) {browserType = "nn4"}
if (document.all) {browserType = "ie"}
if (window.navigator.userAgent.toLowerCase().match("gecko")) { browserType= "gecko" }


function hide1() {
  if (browserType == "gecko" )
     document.poppedLayer = eval('document.getElementById("sub1Div")');
  else if (browserType == "ie")
     document.poppedLayer = eval('document.getElementById("sub1Div")');
  else
     document.poppedLayer = eval('document.layers["sub1Div"]');
     document.poppedLayer.style.display = "none";
}

function show1() {
  if (browserType == "gecko" )
     document.poppedLayer = eval('document.getElementById("sub1Div")');
  else if (browserType == "ie")
     document.poppedLayer = eval('document.getElementById("sub1Div")');
  else
     document.poppedLayer = eval('document.layers["sub1Div"]');
     document.poppedLayer.style.display = "inline";
}



function hide2() {
  if (browserType == "gecko" )
     document.poppedLayer = eval('document.getElementById("sub2Div")');
  else if (browserType == "ie")
     document.poppedLayer = eval('document.getElementById("sub2Div")');
  else
     document.poppedLayer = eval('document.layers["sub2Div"]');
     document.poppedLayer.style.display = "none";
}

function show2() {
  if (browserType == "gecko" )
     document.poppedLayer = eval('document.getElementById("sub2Div")');
  else if (browserType == "ie")
     document.poppedLayer = eval('document.getElementById("sub2Div")');
  else
     document.poppedLayer = eval('document.layers["sub2Div"]');
     document.poppedLayer.style.display = "inline";
}




function hide3() {
  if (browserType == "gecko" )
     document.poppedLayer = eval('document.getElementById("sub3Div")');
  else if (browserType == "ie")
     document.poppedLayer = eval('document.getElementById("sub3Div")');
  else
     document.poppedLayer = eval('document.layers["sub3Div"]');
  document.poppedLayer.style.display = "none";
}

function show3() {
  if (browserType == "gecko" )
     document.poppedLayer = eval('document.getElementById("sub3Div")');
  else if (browserType == "ie")
     document.poppedLayer = eval('document.getElementById("sub3Div")');
  else
     document.poppedLayer = eval('document.layers["sub3Div"]');
  document.poppedLayer.style.display = "inline";
}


function hide4() {
  if (browserType == "gecko" )
     document.poppedLayer = eval('document.getElementById("sub4Div")');
  else if (browserType == "ie")
     document.poppedLayer = eval('document.getElementById("sub4Div")');
  else
     document.poppedLayer = eval('document.layers["sub4Div"]');
  document.poppedLayer.style.display = "none";
}

function show4() {
  if (browserType == "gecko" )
     document.poppedLayer = eval('document.getElementById("sub4Div")');
  else if (browserType == "ie")
     document.poppedLayer = eval('document.getElementById("sub4Div")');
  else
     document.poppedLayer = eval('document.layers["sub4Div"]');
  document.poppedLayer.style.display = "inline";
}