Split XML response from SOAP webservice using suds.js

Hello all, i'm trying to split a soap response from a webservice but can't find the way to do it.

After googling for hours, i let my question here.

Here is my code:

Ti.include('suds.js');
 
var win = Ti.UI.createWindow({
    backgroundColor : '#ffffff'
 
});
 
var view = Ti.UI.createScrollView({
    layout: 'Vertical',
    contentHeight:'auto'
});
 
var label = Ti.UI.createLabel({
    color : '#000000'
});
 
var url = "http://www.webservicex.net/globalweather.asmx";
 
var callParams = {
    CountryName : 'belgium'
};
 
var suds = new SudsClient({
    endpoint : url,
    targetNamespace : 'http://www.webserviceX.NET'
});
 
suds.invoke('GetCitiesByCountry', callParams, function(xmlDoc) {
 
    var response = xmlDoc.documentElement.getElementsByTagName('GetCitiesByCountryResult');
 
    if (response && response.length > 0) {
 
        label.text = response.item(0).text;
    } else {
        label.text = 'NOT OK';
    }
 
});
 
view.add(label);
win.add(view);
win.open();

In that case, i get a low reponse with a list of cities included into a country.

the xml response is something like this :

<NewDataSet>
 <Table>
  <Country>Belgium</Country>
  <City>Antwerpen</City>
 </Table>
 <Table>
  <Country>Belgium</Country>
  <City>Beauvechain</city>
 </Table>
</NewDataSet>

But i can't split those information. If i'd like to display a specific City, i don't know how to proceed.

The response.length = 1

If i try to change the var response = xmlDoc.documentElement.getElementsByTagName('GetCitiesByCountryResult') with something like getElementsByTagName('Table') the response.length = 0

What can i do please? :)