// IE 5+ / Mozilla 1.0+ / Netscape 6+
// jinac vypise informaci o invalidnim prohlizeci

function checkBrowser() {
   var browserName = navigator.appName;
   var browserVersion = navigator.appVersion;
   var browserVersionNum = parseFloat(browserVersion);
   var browserCodeName=navigator.appCodeName;
   var userAgent=navigator.userAgent;
   switch (browserName) {
      case "Microsoft Internet Explorer":
         detailVersion = browserVersion.split (";");
         detailVersionNum = detailVersion[1].split(" ");
         detailVersionNum = parseFloat(detailVersionNum[2]);
         if (browserVersionNum >= 4 && detailVersionNum >= 5) return true;
         break;
      case "Netscape":
         if (browserVersionNum >= 5) return true;
         break;
   }
   return false;
}

// invalidni prohlizec
if (!checkBrowser()) window.location = '/tsnzr/med/share/browser.html';