function auth(login, password) {
	    var LocationURL = '/test?OPERATION=AUTH'+((login) ? "&LOGIN=" + login : "")+((password) ? "&PASS=" + password : "");
		var xmlDoc = makeRequest(LocationURL);
		return xmlDoc;
	}

	function getPwd(msisdn) {
    	var LocationURL = '/test?OPERATION=COMMON-SUBSCR-PWD-GET'+((msisdn) ? "&MSISDN=" + msisdn : "")+'&PARAM1=0';
		var xmlDoc = makeRequest(LocationURL);
		return xmlDoc.getElementsByTagName('RETURN-CODE')[0].firstChild.nodeValue;
	}