JavaScript method to determine browser type_javascript skills

The example in this article describes how JavaScript determines the browser type. Share it with everyone for your reference. The specific implementation method is as follows:

<script type="text/javascript">
  var Sys = {};
  var ua = navigator.userAgent.toLowerCase();
  alert(ua);
  var s;
  (s = ua.match(/msie ([\d.]+)/)) &#63; Sys.ie = s[1]:
  (s = ua.match(/firefox\/([\d.]+)/)) &#63; Sys.firefox = s[1]:
  (s = ua.match(/chrome\/([\d.]+)/)) &#63; Sys.chrome = s[1]:
  (s = ua.match(/opera.([\d.]+)/)) &#63; Sys.opera = s[1]:
  (s = ua.match(/version\/([\d.]+).*safari/)) &#63; Sys.safari = s[1] : 0;
  if (Sys.ie) //ie浏览器
  {
  if (Sys.ie == '6.0')
  {
   alert('ie6.0');
  }
  if (Sys.ie == '8.0')
  {
   alert('ie8.0');
  }
  } else if (Sys.firefox) //
  {
  alert('您当前使用的是firefox' + Sys.firefox +'浏览器');
  } else if (Sys.chrome)
  {
  alert('您当前使用的是Chrome' + Sys.chrome + '浏览器');
  } else if (Sys.opera)
  {
  alert('您当前使用的是Opera' + Sys.opera + '浏览器');
  } else if (Sys.safari) 
  {
  alert('您当前使用的是Safari' + Sys.safari + '浏览器');
  }
</script>

I hope this article will be helpful to everyone’s JavaScript programming design.