Need Help

Hi, I doing so input for form.... below is the code with timer..

<?xml version="1.0"?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN" "http://www.wapforum.org/DTD/wml_1.1.xml">
<wml>
<card id="card1" title="Input">
<p>Please input:</p>
<p>Submissionfield:<input name="name" maxlength="10"/>
</p>
<do type="accept" label="SUBMIT">
<go href="http://www.yourdomain.com/mms/animal/$(name)"></go>
</do>
</card>
</wml>

after i put in the name I get response unknown from server..

may i know what the error??
I want user to input a word and when he click go
the page will download what he enter into his mobile phone.

thks and regards,

sky