The following sections provide guidelines for structuring your navigational model.

When a user switches from card to card in a deck, we need to store data in variables. WML variables are case sensitive.

A WML card can be set up to let a user enter information, as demonstrated in this example:

The card tag serves as a container element for all the various texts, images, links, and other WML tags that you wish to use to create your wireless web site. A card element is somewhat analogous to the body element in HTML, but with one major difference, in that you can have more than one card element. A collection of card elements (cards) is referred to as a deck. Note that there is no tag to signify a deck. However, the collection of card elements in contained in a wml element.

The following code is an example of a WML page that calls a WMLScript. The WMLScript uses the Crypto.signText function.

The biggest technological revolution of this era — the wireless Internet — is going through a trying period. Its major challenge is to replicate the cross-platform portability of its wired sibling — a challenge that has been brought to the fore by the number of incompatible technologies that are being used for the delivery and display of wireless Internet content. Content developers, as a result, are faced with the critical decision of which technology to develop for. The answer to their question depends on the region they are based in, the region their target audience is in and the timeframe at which they are looking to go wireless.

"Applied XML Solutions," a new book from Benoît Marchal, shows professional developers how to apply XML to a variety of real-world applications. These include using XML as a scripting substitute and using XSLT to facilitate communication between incompatible systems. Here we present the second part of the chapter devoted to content syndication:

The largest deck or digest you can send to a phone in a single response is approximately 1200 bytes (including the WML tags). If you have display text that takes up more than 1200 bytes, use multiple cards in separate WML decks. Define a element with type="ACCEPT" and label="More" that allows the user to proceed from one card to the next.

The previous chapter described how to test a static WML deck on a local file system. It is also useful to test the deck on your Web server to make sure it is properly configured for WML.

WML (Wireless Markup Language) is a markup language that is based on XML(Extensible Markup Language). It's an open language developed by the WAP(wireless Application Protocol) forum to accommodate small handheld devices. WML specification that defines the syntax, variables, and elements used in a valid WML file is developed and maintained by the WAP(Wireless Application Protocol) Forum, and an industry-wide consortium founded by Nokia, Phone.com, Motorola, and Ericsson.

WAP is supposed to make consumers hungry for wireless data. Will consumers line up for a browser in every phone, or will they spurn it like so many wireless-data initiatives of the past? If WAP is the new restaurant in town, then wireless markup language (WML) is its secret book of recipes. Now that WAP is open for business in Europe, and WAP-enabled phones are hot, what is going to happen now that WAP has started to open its doors for business on this side of the pond?

WAP Tutorial Glossary

Here's an example WML 1.1 deck written in ASP which gives contact information for palowireless.com and shows current web site activity.

WAP Technology

If you have decided to have a WAP version of your website and you want to make it dynamic, you can use PHP to generate your WML pages. In order to view WML pages you should download and install a phone emulator from Phone.com, Nokia.com or somewhere else. You can also use a WAP enable cell phone.

The following sections provide guidelines for using the <input> element to constrain the text a user can enter.

The previous chapter described how to test a static WML deck on a local file system. It is also useful to test the deck on your Web server to make sure it is properly configured for WML.

Hand held devices are evolving! Some might even say, it is chaotic. This situation is quite different from the desktop market place where the basic format of a computer display appears to be quite stable. The factors affecting this evolution are complex and hard to predict; and anyone involved in this area is probably aware of the challenges inherent in creating applications for such devices.

WML is a markup language designed especially for specifying and displaying content on WAP (Wireless Application Protocol) devices. WML is part of the WAP application environment, which requires the use of WML.

This series of articles describes how to provide Web content to mobile devices through WML (Wireless Markup Language). This article covers techniques to use when delivering standard HTML to WML-compatible devices.