repost: html select with xml

Repost: Some html and xsl guru's help needed - want it to look something
like this http://javascript.internet.com/forms/dropdown-box-population.html

===========================

I am trying to create an interface like they have on autos.com or cars.com
where when u select the car type from a drop down, the car models show up, u
select the car model and the car year shows up. and etc.

I am trying to this with xml data and javascript and xsl and coming up a
blank. Does anyone know any example scripts out there. This is a snippet of
my code. If someone can help me advance that wud be gr8 too.

<div id="drop" class="dropper" align="left">
     <form name="locate" class="dropper">
     <table border="0" cellspacing="2" cellpadding="2">
      <tr>
       <td><u>Navigate to:</u></td>
      </tr>
      <tr>
       <td>Group</td>
       <td>
        <xsl:for-each select="DG">
         <select name="DG" onchange="javascript:??????;">
          <option>
          </option>
          <option>
           <xsl:attribute name="value">
            <xsl:value-of select="dgN"/>
           </xsl:attribute>
           <xsl:value-of select="dgN"/>
          </option>
         </select>
        </xsl:for-each>
       </td>
      </tr>
      <tr>
       <td>Cab</td>
       <td><select name="Cab"
       onchange="javascript:holdOn()">
       <option value="cab">????</option>
       </select></td>
      </tr>
        etc???
        </table>
     </form>
    </div>

Thanks.

TP

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list