[Zope] a Zsql Method

Hello, I have the following DTML method: <dtml-var standard_html_header> <form action="ricercaxmodello" method="get"> <h2><dtml-var document_title></h2> Enter query parameters:<br><table> <tr><td ALIGN=LEFT>MODEL <select NAME="LISTA" multiple size="3"> <option VALUE="9000/779/C160L">C160L</option> <option VALUE="9000/770/J200">J200</option> <option VALUE="9000/770/J210">J210</option> </select></td></tr> <tr><td><input type="SUBMIT" name="SUBMIT" value="Submit Query"> </td></tr> </table> </form> <dtml-var standard_html_footer> I would make a Zsql Method, but I don't Know what is the right argument in the Zsql Method when there is a "select" and then I have some problems with the query template. Thanks in advance