<script src="/jquery-1.11.1.js"></script>
 <script src="/jquery.SPServices-2014.02.min.js"></script>
 <script type="text/javascript" language="javascript">

 $(document).ready(function() {
 $.ajax({
     type: "POST",
     url: "http://xxx/soap11/ValidateSourceCode?wsdl",
 username: "xyz",
     password: "xyz",
     dataType: "xml",
     data: {},
     processData: false,
     contentType:"text/xml; charset="utf-8"",
     success: function (msg) {
          alert($(msg).text());
          //console.log($(msg).text());
     },
     error: function(xhr, status, error){
              alert(xhr.status);
              alert(xhr.error);

      }
    }); });


  </script>

$.ajax({
    type: "GET",
    url: "http://xxx/soap11/ValidateSourceCode?wsdl",
    data: {},
    contentType:"text/xml; charset="utf-8"",
    success: jqSuccess,
    error: jqError
});

$.ajax({
    type: "GET",
    url: "/api/yourLocalSoapClient.php",
    data: {query:'testApi'},
    contentType:"text/xml; charset="utf-8"",
    success: jqSuccess,
    error: jqError
});