Soap Excptoin

Titanium.include('suds.js'); var url = "test.com/webservice.asmx"; var callparams = { usrename: 'anand.hit@gmail.com', password: 'anand' };

var suds = new SudsClient({ endpoint: url, targetNamespace: 'http://tempuri.org/' });

try { suds.invoke('Authenticate', callparams, function(xmlDoc) { var results1 = xmlDoc.documentElement.getElementsByTagName('User_ID'); // var results2 = xmlDoc.documentElement.getElementsByTagName(''); label.text = results1; }); } catch(e) { Ti.API.error('Error: ' + e); }

but it gives error [ERROR] Error: ReferenceError: Can't find variable: window

How can i get the result from web service?