// JavaScript Document
var browserName = navigator.appName;
var browserVersion = parseInt(navigator.appVersion);
var browser;

function openLayer (myLayer)
{
  var GECKO = document.getElementById? 1:0 ;
  var NS = document.layers? 1:0 ;
  var IE = document.all? 1:0 ;

  if (GECKO)
       {document.getElementById(myLayer).style.display='block';}
  else if (NS)
       {document.layers[myLayer].display='block';}
  else if (IE)
       {document.all[myLayer].style.display='block';}
}

function closeLayer (myLayer)
{
  var GECKO = document.getElementById? 1:0 ;
  var NS = document.layers? 1:0 ;
  var IE = document.all? 1:0 ;

  if (GECKO)
       {document.getElementById(myLayer).style.display='none';}
  else if (NS)
       {document.layers[myLayer].display='none';}
  else if (IE)
       {document.all[myLayer].style.display='none';}
}