Accessing secured webservices thows unauthorized 401 error code.

Accessing secured webservices thows unauthorized 401 error code.

There is a webservice located at the following url ( Please bear in mind that I have no access to change them, I have to live with it)   http://localhost:8080/mywebservices/wsdl?targetURI=testread
But these webservices require authentication when accessed.
i.e when I open the url directly it asks me for username and password, and when I provide them, it let's me see the WSDL.

I know it is a soap webservice., and I am providing the soap request message, but how do I provide the credentials as part of the request.......Please advise me

The operation that I am accessing is "testRead". I have used SOAPUI to build the soap Message.

  2. <script>
  3. $(document).ready(function(){ 

  6. var soapMessage ='<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ecom="testeread/testRead">'
  7.  + ' <soapenv:Header/> '
  8.  + ' <soapenv:Body> '
  9.  + ' <ecom:ws_hello> '
  10.  + ' <ecom:cHello>Rahman</ecom:cHello> '
  11.  + '  </ecom:ws_hello> '
  12.  + ' </soapenv:Body> '
  13. + '</soapenv:Envelope>';
  14.  
  15.  $.ajax({ 
  16. url: ' http://localhost:8080/mywebservices/wsdl?targetURI=testread ',
  17. type: "POST",
  18. dataType: "xml",
  19. data: soapMessage,
  20. //username: "devws",
  21. //password: "wsdev",
  22. contentType: "text/xml; charset=utf-8",
  23. beforeSend: function(req){
  24.    console.log(soapMessage);
  25. req.setRequestHeader('Authorization', auth);
  26. },
  27. success:function(data){
  28. console.log(data);
  29. },
  30. error: function(XMLHttpRequest, textStatus, errorThrown) 
  31. { 
  32. console.log('An Ajax error was thrown.');
  33.                 console.log(XMLHttpRequest.reponseText);
  34.                 console.log(textStatus);
  35.                 console.log(errorThrown);
  36. }
  37.  })
  38. });
  39. </script>