Introduction to WMLScript

What you should already know

Before you continue you should have a basic understanding of the following:

• WWW, HTML and the basics of building Web pages
• JavaScript
• WML

If you want to study these subjects first, go to our Home Page.

What is WML?

WML stands for Wireless Markup Language. It is a mark-up language inherited from HTML, but WML is based on XML, so it is much stricter than HTML.

WML is used to create pages that can be displayed in a WAP browser. Pages in WML are called DECKS. Decks are constructed as a set of CARDS.

What is WMLScript?

• WMLScript is the scripting language used in WML pages
• WMLScript is a light version of the JavaScript language
• WML scripts are not embedded in the WML pages. WML pages only contains references to script URLs
• WMLScript is compiled into byte code on the server before it is sent to the WAP browser
• WMLScript is a part of the WAP specification

What is WMLScript used for?

• WMLScript is used to validate user input
• WMLScript is used to generate message boxes and dialog boxes locally, to view error messages and confirmations faster
• WMLScript is used to access facilities of the user agent 

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