XML string parsing issue

[svast]

Hi there : I have lots of trouble when I want to parse XML in Webscript (in Javascript or FTL, i can't get it to work).
The XML is stored as a property of a alfresco node.

I get the XML  with Javascript:

var xmlstring = node.properties["ph:ARActeXml"].content;‍

I can pass it to the Freemarker template to verify it is XML string

model.myxmlstring = xmlstring‍

So I see I could use that XML string in either Javascript and/or Freemarker engine. I am just lacking the API.
But how can I parse it to retrieve some property inside it?
I am running Alfresco Community 2.1, and it looks like the RHINO xmlNodeModel, new XML,… have not been included in that version.

Please any kind of help will be apreciated; i looked at the tutorials but the methods all failed 

[pmonks]

As of version 2.2, Alfresco bundles a version of Rhino that supports E4X directly.  There's also a workaround for earlier versions of Alfresco described at http://issues.alfresco.com/browse/AR-1720 that's safer than upgrading the Rhino JARs themselves.

Cheers,
Peter