The reason I was looking at this is sometimes the order of the groups changes
in the output. So, if I have this:



<?xml version="1.0" encoding="UTF-8"?>

<root>

    <div2/>

    <div2/>

    <div1/>

    <div1/>

    <div2/>

    <div2/>

    <div1/>

</root>



I sometimes need this:



<?xml version="1.0" encoding="UTF-8"?>

<root>

    <div1>

        <div2/>

        <div2/>

    </div1>

    <div1>

        <div2/>

        <div2/>

    </div1>

    <div1/>

</root>



In other words, in the final output, any non-div1 elements have to be included
in the first div1 to make the output document valid.



Rick