XQuery demo page does not work

> Hi,
>
>
> I'm new on this list, so maybe you already know that the page :
>
>  http://www.orbeon.com/ops/xquery-the-web/
>
> has a problem with the suggested XQuery. It leads to the following  
> error :
>
> " A sequence of more than one item is not allowed as the first  
> argument of string() (<div/>, <div/>, ...)"
>
>
> Thanks for your attention,
>
> Grégoire
>
>
>
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