WML Tasks

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A task specifies what action to perform when an event, like entering a card or selecting a link, occurs.

Go Task
The <go> task represents the action of switching to a new card.
<?xml version="1.0"?><!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN""You are not allowed to view links. Register or Login"><wml><card><p> <anchor>  Go To Test  <go href="test.wml"/> </anchor></p></card> </wml>

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Prev Task

The <prev> task represents the action of going back to the previous card.
<?xml version="1.0"?><!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN""You are not allowed to view links. Register or Login"><wml><card><p> <anchor>  Previous Page  <prev/> </anchor></p></card> </wml>

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Noop Task
The <noop> task says that nothing should be done (noop stands for "no operation"). This tag is used to override deck-level elements.
The <do> tag can be used to activate a task when the user clicks on a word/phrase on the screen.
The example below uses a <do> tag to add a "Back" link to the card. When the user clicks on the "Back" link, he or she should be taken back to the previous card. But the <noop> tag prevents this operation; when the user clicks on the "Back" link nothing will happen: <?xml version="1.0"?><!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN""You are not allowed to view links. Register or Login"><wml><card><p> <do name="back" type="prev" label="Back">  <noop/> </do></p></card> </wml>

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Task Elements
Start tag   Purpose   WML
<go>   Represents the action of switching to a new card   1.1
<noop>    Says that nothing should be done (noop stands for "no operation"). Used to override deck-level elements   1.1
<prev>   Represents the action of going back to the previous card   1.1
<refresh>   Refreshes some specified card variables. If any of the variables are shown on the screen, this task also refreshes the screen   1.1