ActionScript started as a scripting language for the Flash authoring tool, now developed by Adobe as Adobe Flash. The first three versions of the Flash authoring tool provided limited interactivity features. Early Flash developers could attach a simple command, called an "action", to a button or a frame.

Web Designers prepare sketches or layouts by hand or with the aid of a computer to illustrate their vision for the design to the Client. They select colors, sound, artwork, photography, animation, style of type, and other visual elements of the design. Designers also select the size and arrangement of the different elements that will appear on the users screen.

PHP is a general purpose scripting language especially suited for Web development and can be embedded into HTML. If you are new to PHP try the introductory tutorial (www.php.net) After that, check out their online manual, the example archive sites and some of their other on-line resources and on-line tutorials.

XML began as a simplified subset of the Standard Generalized Markup Language (SGML), meant to be readable by people. Application languages can be implemented in XML, these include XHTML, RSS, MathML, GraphML, Scalable Vector Graphics, MusicXML, and many others. XML is sometimes used as the specific language for computer applications.

JavaScript is a scripting language used to enable programmatic access to objects within other applications. It is primarily used in the form of client-side JavaScript for the development of dynamic websites. JavaScript is a dialect of the ECMAScript standard and is characterized as a dynamic, weakly typed, prototype-based language with first-class functions, but be easier for non-programmers to work with.

MySQL is popular for web applications and acts as the database component of the LAMP, BAMP, MAMP, and WAMP platforms (Linux/BSD/Mac/Windows-Apache- MySQL-PHP/Perl/Python). Its popularity for use with web applications is closely tied to the popularity of PHP and Ruby on Rails, which are often combined with MySQL. Many web sites use MySQL to store user data.