From http://www.w3schools.com (Copyright Refsnes Data)

WML Links and Images

Links

A WML card can be set up to display the anchor functions of WML.

<anchor>

The <anchor> tag always has a task ("go", "prev", or "refresh") specified. The task defines what to do when the user selects the link. In this example, when the user selects the "Next page" link, the task says "go to the file test.wml":

<?xml version="1.0"?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN"
"http://www.wapforum.org/DTD/wml_1.1.xml">

<wml>
<card title="Anchor Tag">

<p>
<anchor>Next page
<go href="test.wml"/> 
</anchor>
</p>

</card>
</wml>

<a>

The <a> tag always performs a "go" task, with no variables. The example below does the same as the <anchor> tag example:

<?xml version="1.0"?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN"
"http://www.wapforum.org/DTD/wml_1.1.xml">

<wml>
<card title="A Tag">

<p>
<a href="test.wml">Next page</a>
</p>

</card>
</wml>

Image

A WML card can be set up to display an image:

<?xml version="1.0"?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN"
"http://www.wapforum.org/DTD/wml_1.1.xml">

<wml>
<card title="Image">

<p>
This is an image
<img src="/images/stickman.wbmp" alt="stickman" />
in a paragraph
</p>

</card>
</wml>

The result MIGHT look like this in your mobile phone display:

 ------ Image ------

This is an image stickman in a paragraph

Note that .wbmp is the only image type that can be displayed in a WAP browser.