hi, i have a list form object on my page:

<select name="item" size="5" multiple="multiple" id="item">
<option>something here</option>
<option>something here</option>
<option>something here</option>
<option>something here</option>
<option>something here</option>
<option>something here</option>
<option>something here</option>
<option>something here</option>
<option>something here</option>
</select>

but i cant find anywhere about how to get at these elements when the forms been submitted. for example, if a few of the items have been select, it returns a commar delineated line, but how can i get at, say the 3rd item selected or find out how many items were selected?
thanks