ktsirig

Hello all!
I am starting to use JS a couple of days now and mainly I am interested in using it in form validation and to create pop-ups.
I have 2 questions :

1) If a user doesn't have JS enabled, how will I check for empty fields in the form and show an alert box that prompts for corrections?

2) Also, I have seen sites that have the following : There is a link somewhere which works like this : [a] if you have JS enabled, it "recognizes" it and gives a pop-up window when clicked whereas [b] if you don't have JS enabled, it simply acts like a link and opens a new window (not a poup-up one).

Because I am a bit confused, I am staring to think that maybe JS causes more problems than it solves... Should a programmer use it or ,for instance, do a form validation in another page and don't count on the user having JS enabled?

DaWei

If JS is disabled, you'll be doing no client side validation. Even if you validate client-side, you should also re-validate server side. User communication for corrective action, is a matter of request/response, which is less desirable than on-client interaction, but there you have it. If JS is disabled, it's disabled. You either deal with it or toss the customer.

Investigate the <noscript> tag, meta tags, and redirection, for your other question.

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