can xindice generate unique xml id's?

[Dominic Gamble]

I am using XUpdate to insert an element in a list of elements. Each
element contains an id attribute which must be unique.

ie:

<Elements>
        <Element id="123"/>
        <Element id="124"/>     
        <Element id="125"/>
        <Element id="126"/>
</Elements>

I would like to insert an element and have xindice generate the id for
me - is this possible, or do I have to manage id's in my program code?

Thanks,
Dominic Gamble