This works!
<?php
// send wml headers
header("Content-type: text/vnd.wap.wml");
echo "<?xml version=\"1.0\"?>";
echo "<!DOCTYPE wml PUBLIC \"-//WAPFORUM//DTD WML 1.1//EN\""
. " \"http://www.wapforum.org/DTD/wml_1.1.xml\">";
?>
<wml>
<card id="start" ontimer="#index">
<timer value="30"/>
<p align="center">
<img src="welcome.wbmp" alt="Welcome!"/>
</p>
</card>
<card id="index" title="M3Gate Samples">
<p>
Click on a link below.<br/>
<a href="events/index.wml">WAP Events</a><br/>
<a href="shares/shares.wml">Shares</a><br/>
<a href="calculator/index.wml">Calculator</a><br/>
</p>
</card>
</wml>