jQuery Forum

I have a menu as follows

        <ul id="nav">


            <li> <a href="#">Golf</a>
                <ul class="golf">
                    <li class="engine"><a href="#">Engine</a></li>
                    <li class="brakes"><a href="#">Brakes</a></li>
                    <li class="transmission"><a href="#">Transmission</a></li>
                    <li class="interior"><a href="#">Interior</a></li>
                    <li class="running_gear"><a href="#">Running Gear</a></li>
               
                </ul>
            </li>
               
            <li><a href="#">Polo</a>
                <ul class="polo">
                    <li class="engine"><a href="#">Engine</a></li>
                    <li class="brakes"><a href="#">Brakes</a></li>
                    <li class="transmission"><a href="#">Transmission</a></li>
                    <li class="interior"><a href="#">Interior</a></li>
                    <li class="running_gear"><a href="#">Running Gear</a></li>
               
               
                </ul>
             </li>
               
            <li><a href="#">Passat</a>
                <ul class="passat">
                    <li class="engine"><a href="#">Engine</a></li>
                    <li class="brakes"><a href="#">Brakes</a></li>
                    <li class="transmission"><a href="#">Transmission</a></li>
                    <li class="interior"><a href="#">Interior</a></li>
                    <li class="running_gear"><a href="#">Running Gear</a></li>
                </ul>
            </li>
           
            <li><a href="#">Jetta</a>
                <ul class="jetta">
                    <li class="engine"><a href="#">Engine</a></li>
                    <li class="brakes"><a href="#">Brakes</a></li>
                    <li class="transmission"><a href="#">Transmission</a></li>
                    <li class="interior"><a href="#">Interior</a></li>
                    <li class="running_gear"><a href="#">Running Gear</a></li>
                </ul>
            </li>
           
        </ul>

I want to post the class of the parent ul and the clicked li to php when they are clicked say as "model" and "part". I'm sure its simple but i cant seem to quite grasp how to do it.

Thanks for any help in advance.