Updating a data object with a new value
<p>I'm trying to update a data object with a new value. I have </p>

<pre><code> if($("#ArticlesHolder").data(event.data.id) != null)
    {           
        $("#ArticlesHolder").data(event.data.id, {name:event.data.name, nr:newNr, price:event.data.price, articlenr:event.data.articlenr});
    }    
</code></pre>

<p>Now I want to update a existing data object on <code>$("#ArticlesHolder")</code> but I only want to update one value not all values.  How do I, for example, only update the <code>nr</code> to <code>nr +1</code>?</p>
