The <go> tag

<go href="someurl">
..<postfield>..
..<setvar>..
</go>

When you use method="get", the data is sent as an request with ?data appended to the url. The disadvantages of get is that it can be used only for a limited amount of data, and if you send sensitive information it will be displayed on the screen and saved in the web server's logs.

With method="post", the data is sent as an request with the data sent in the body of the request. This method has no limit, and sensitive information is not visible

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

<wml> 
<card> 
<p>
 <anchor>
  Go To Card 2
  <go href="#card2"> 
   <setvar name="x" value="30"/> 
  </go>
 </anchor>
</p> 
</card>
</wml>

A <go> tag with no content:

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

<wml>
<card>
<p>
 <anchor>
 Go To Test
  <go href="test.wml"/>
 </anchor>
</p>
</card> 
</wml>