change Position of a Node

[J. C. <jan...@im...>]

Can anyone show me a smart way to move a complete node-structure up or down
in the xml document?

$xml="<root><A>abc</A><B>def</B></root>";
...
move("/root/B[1]","up");
echo $xml; //should give: <root><B>def</B><A>abc</A></root>

move("/root/B[1]","down");
echo $xml; //should give: <root><A>abc</A><B>def</B></root>

function move($xpath,$direction){
 global $XPathObject;
 //???
}

I am thinking about deleting and re-inserting all the nodes in the parent
node but there must be an easy way, or not? Can I just change the two index
keys in the xpath array?

Has anyone coded something for this problem before?

Thanks for any help!

Cheers
	Jan