11.4. Going Backwards

The <prev/> tag is used to go backwards through the history stack. Like the <go/> tag, it should be enclosed in the <anchor></anchor> tags. The following WML example illustrates how to go back to a previous card:

(linksEg4.wml)

<?xml version="1.0"?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.3//EN" "http://www.wapforum.org/DTD/wml13.dtd">

<wml>
  <card id="card1" title="Card 1">
    <p>
      <anchor>
        <go href="#card2"/>
        Go to card 2
      </anchor>
    </p>
  </card>

  <card id="card2" title="Card 2">
    <p>
      <anchor>
        <prev/>
        Going backwards
      </anchor>
    </p>
  </card>
</wml>

If you view the above WML document in a mobile phone emulator, you should see a card that contains a single anchor link. The result should look similar to the screenshots below:

If you select the "Go to card 2" anchor link, the mobile phone emulator will display the next card in the deck. The result should look like this:

If you select the "Going backwards" anchor link, the previous card, that is card 1, will be displayed.

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