The chapter also breaks down what to look for in a library.
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??? Chapter 5, ???Ajax and Data Exchange???: Ajax is everywhere. This chapter explains what
Ajax is and what goes into an Ajax request. It describes the pitfalls of Ajax and how to
plan for them. You also look at data exchange formats, learning which are most appropriate
for you and when to use them.
??? Chapter 6, ???Visual Effects???: Visual effects might seem superfluous, but this chapter
sheds some light on the effective use of animation within your pages to enhance usability.
You see how to build your own animation object and how to use JavaScript
libraries to do animation.
??? Chapter 7,???Form Validation and JavaScript???: Form validation is one of the most common
tasks given to JavaScript, and DOM scripting is incredibly useful when attempting
it. This chapter tackles form validation on the client side with techniques such as preventing
the formfrom being submitted, using JavaScript, and using the DOM to display
error messages.
??? Chapter 8,???Case Study: FAQ Facelift???: This case study demonstrates how to show and
hide elements in a page smoothly and elegantly. The application is built with progressive
enhancement in mind and uses CSS, HTML, and DOM scripting to create a
modern FAQ page.
??? Chapter 9, ???A Dynamic Help System???: The final chapter consists of an online help system
that is on hand to guide users through a suitable complicated online application.
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