Storing XML node path in variable

[jidijkstra]

Hi all! Is there any way to store an XML node path in a variable? Something like the following:

var path:* = path.to.xml.node.(parID == 4).here;
var xmlObject:XML = <loaded XML>;
var value:String = xmlObject.path.toString();

I'm using an XML file in one of my apps which structure will be changed sometimes by the company that creates it. I'd like to declare a few "global" constants with full node paths I can use and edit in one place, so I won't have to refactor my complete codebase when the XML structure changes again slightly.