Accessibility when developing for the web

There are two concerns when speaking about accessibility: accessibility for disabled people and accessibility for “disabled” browsers.

I’m talking, on this post, about the second category.

So, is this really something that is needed nowadays?  Even the browser on my mobile phone has JavaScript support (though it doesn’t have Flash support) and can run a complex dynamic website without any special change or anything designed to be used on mobile browsers (be them Blackberries, iPhones or other mobile phones).

Some recommendations are to degrade the design when JavaScript is disabled, but the vast majority of users has no idea how to disable JavaScript on their browsers.  If some IT guy from a company does that, should you really be worried with this person accessing your website?  Of course, you are reducing the market for your product, but how many people are excluded?  Are they people that would “buy” some service from the website?  Is this amount of people worth the extra investment that it takes to design a website to degrade and to be pleasant when used fully dynamically?

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