How to Create Conditional Actions in Web Pages for Mobile Devices

Because the elements of WML are so similar to HTML, creating Web pages for mobile devices is similar to creating pages for the Web accessed via traditional browser. However, some elements are specific to programming for mobile devices. In some instances, you may want to have a different action triggered depending on whether the user has come to the page via a menu or link, or returned to the page with a "Prev" button.

Difficulty: Challenging

Instructions

1. Type "<onevent type=" within the card element and card tag (type the symbols and letters within the quotation marks, but not the quotation marks themselves).

2. Type either "onenterforward" or "onenterbackward." Use the former if the action is to occur only when the user enters the card from a link or menu and the latter if the action is to occur only when the user enters the card via the "prev" element.

3. Type ">".

4. Create a go, prev, refresh, or noop action.

5. Type "</onevent>" to close the onevent tag.

Tips & Warnings

• You may conditionally jump to another page by typing "<card onenterforward="destination.url">" where "destination.url" is the location to jump to. Use "<card onenterbackward="destination.url">" the same way. Schedule an action with the "ontimer" variable to create an action that occurs after a set period of time.