[jQuery] Interface Sortables

[Michael Price]

Hi,
Say I've got this list:
<ul id="sortable">
        <li id="element1">stuff</li>
        <li id="element2">stuff</li>      
        <li id="element3">stuff</li>
</ul>

Using Interface sortables I want to get a comma separated list of list 
item IDs after I've done some dragging. Say I've been doing some 
dragging and it's now:

<ul id="sortable">
        <li id="element3">stuff</li>
        <li id="element1">stuff</li>      
        <li id="element2">stuff</li>
</ul>

I can use SortSerialize but this gives me the POST-ready version. I just 
need "element3,element1,element2".

What is the best way to achieve this?

Regards,
Michael Price