How to know whether the javascript is disabled or not while loading the jsp

Hi,
My query is like how to know whether the javascript is disabled or not while loading the Application main JSP in Mozilla browser.
I want some Java code or JavaScript code.

To the point, just let JS fire a specific HTTP request inside the same session.
This can be done in several ways. 1) Create a hidden <img> element and set the `src` attribute so that it will request a (fake) image from the server. The server just have to intercept on this specific request. 2) Fire an ajaxical request and let the server intercept on it. You can use a Filter for this which sets a token in the session scope to inform that the client has JS enabled.

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