A Brief Introduction to WML
As you now know, WML is based on XML and is optimized for low-bandwidth transactions. One of the optimizations in WAP and WML is that a server can return multiple display pages in a single request. These display pages are referred to as cards. When you return a response to a WAP phone (or other device), the response can contain a series of <card> tags. The phone displays the first card in the response and it is up to you to provide navigation to the other cards. Figure 53.6 illustrates the layout of a response.
Figure 53.6. A response can contain multiple "pages" organized into cards.
Navigating Between Cards
There ...
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