php - Re-ordering nodes in an xml via jquery ui drag and drop -

i hope can me here...

i working on small piece of code allow me re-order nodes in xml file via jquery ui sortable interface.

take following xml file:

<root>    <page1>      <content>        content 1      </content>    </page1>    <page2>      <content>        content 2      </content>    </page2>    <page3>      <content>        content 3      </content>    </page3> </root> 

i have been able use php to build drag , drop interface based on number of nodes in xml file. trying achieve way of saving new order of xml files when data passed sortable interface. jquery ui, can ids required , able pass onto php. main issue how manipulate xml file following result:

<root>    <page1>      <content>        content 3      </content>    </page1>    <page2>      <content>        content 1      </content>    </page2>    <page3>      <content>        content 2      </content>    </page3> </root> 

hope making sense , hope has idea of how can achieve this. possible domdocument believe simplexml not powerful enough handle such task.

my day made if solution can attained.

thanks.