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As you know, Ajax is a technology that can be used to perform all sorts of clever tasks; this includes building web forms that are less vulnerable to attacks from malicious web bots. Indeed, its pretty simple to develop certain mechanisms that permit the dynamic generation of verification codes via Ajax, which must be entered manually by a user before submitting an HTML form. This is the second part of a four-part series that shows you how to make your web forms safer with Ajax.
– Introduction
Actually, building a web form checking system like this can be an instructive experience, particularly for those web developers whom need to code safer online forms without using a server-side graphic library to generate quot;noisy images quot; on the fly.
So, if you’re interested…

Are you looking for a new way to protect your web forms from malicious hackers and spam bots? Then you’ve come to the right place. In this four-part article series, you’ll learn how to use Ajax to protect those forms. Keep reading to learn how to build an Ajax-based verification code mechanism that you can use on your own web site.
– Introduction
With the Web being widely inundated by spam bots these days, its not surprising that many conscientious web developers have started creating different mechanisms aimed at protecting HTML forms against fake submissions.
Ranging from generating the so-called noisy images to including si…