Hey Taro, sorry your thread was lost. I you could just create a page on your site called nojs.html with a message saying to view this website properly enable javascript.
In the head just use this code.
Code:
<html>
<head>
<noscript>
<meta HTTP-EQUIV="REFRESH" content="0; url=http://www.yourdomain.com/nojs.html">
</noscript>
</head>
<body>
Please enable javascript
</body>
</html>
you will need to put the <noscript> part on evrypage of your website incase a peson follows a link like yourdomain.com/about.html