HTML and CSS Reference
A Nope. As with HTML, all you need is a text editor and a browser that supports
programming language that needs at least a compiler for its programs to run.
However, tools like FireBug for Firefox, the Internet Explorer Developer Toolbar,
and Safari's Web Inspector can make your life easier. Consult the documentation
Q What is AJAX?
A One topic we haven't covered yet is AJAX. AJAX is a term used to describe scripts
that communicate with the server without requiring a web page to be fully
reloaded. For example, you can use it to fetch information and display it on the
page, or to submit a form for processing, all without changing the full page in the
browser. I discuss AJAX in detail in Lesson 16.
However, unless you have a really good reason not to, you should make accommo-
access your site. For example, if you run an online store, do you really want to shut
out users because of their browser configuration?
Q In Java and C++, I previously defined variables with statements such as int ,
all variables can take any form and can even be changed on-the-fly. As a result, the
context in which the variable is used determines its type.