function detectBrowser()
{
  var browser=navigator.appName;
  var b_version=navigator.appVersion;
  version = b_version.charAt(b_version.search(/msie/i) + 5)
  if (browser == "Microsoft Internet Explorer" && version <= 6)
  {
    alert("Oops! Internet Explorer (IE) 6 and below aren't supported. This site is better with Firefox, Safari, Opera, Google Chrome, and IE 7 up.");
    window.location.replace("http://www.microsoft.com/windows/downloads/ie/getitnow.mspx")
  }
}