/**************************************
* Copyright (c) 2002 Blackfire Internet Solutions, Inc. All rights reserved.
*
* Dependencies
* ------------
* browser.js
**************************************/

function isBrowserNS()
{
  return browserName() == "Netscape";
}

function isBrowserNS4()
{
  return document.layers != null; // only supported in Netscape 4.x
}

function browserName()
{
  return navigator.appName;
}

function browserVersion()
{
  var sVersion = "0";

  switch (browserName())
  {
    case "Microsoft Internet Explorer":
      var sBrowserID = "MSIE ";
      var iIndex = navigator.appVersion.indexOf(sBrowserID) + sBrowserID.length;

      sVersion = navigator.appVersion.substr(iIndex);
      break;

    case "Netscape":
      sVersion = navigator.appVersion;
      break;
  }

  return parseFloat(sVersion);
}