Quick jquery plugin to check navigator.userAgent string

eyebrowser.jquery.js

(function($){
  function getInternetExplorerVersion() {
    var rv = -1;
    if (navigator.appName == 'Microsoft Internet Explorer') {
      var ua = navigator.userAgent;
      var re  = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
      if (re.exec(ua) != null)
        rv = parseFloat( RegExp.$1 );
    }
    return rv;
  }
  
  $.extend({
    eyebrowser: function() {
      var agentString = navigator.userAgent.toString();
      if(/Chrome/.test(agentString)) {
        return "Chrome";
      } else if(/Firefox/.test(agentString)){ 
        return "Firefox";
      } else if(/MSIE/.test(agentString)) {
        var iev = getInternetExplorerVersion();
        return "IE "+iev;
      } else if(/Opera/.test(agentString)) {
        return "Opera";
      } else {
        return "Other browser";
      }
    }
  });
})(jQuery)

// alert($.eyebrowser());