Parsing locale strings.xml

Hey,

i wanna build my own "L" function for translating things in my application.

I've created a folder inside my assets and reading the XML in my application - that works.

My problem: I don't know how i can "loop" through the xml file, to find my specific String...

XML looks like this:

<?xml version="1.0" encoding="UTF-8"?>
 
<string id="test">Hello World</string>

My Function (so far) looks like this:

Alloy.Globals.L = function (text) {
    var langFile = Ti.App.Properties.getString('language');
    console.log("Selected Language: " + langFile);
    var file =  Titanium.Filesystem.getFile(Titanium.Filesystem.resourcesDirectory, 'i18n/'+langFile+'/strings.xml');
 
    console.log(file.nativePath);
    console.log("File existiert: " +  file.exists() );
 
 
    var xmltext = file.read();
 
    xmltext = xmltext.text;
    var xmldata = Titanium.XML.parseString(xmltext);
   console.log( xmldata.getElementById("test").text );
};

Thought that will work - any idea what is wrong? (of course is in the last 2 lines, but i don't know how to get the value, that i want)

Thanks - nico